Bella is preheating her oven before using it to bake. The initial temperature of the
oven is 65° and the temperature will increase at a rate of 10° per minute after being
turned on. What is the temperature of the oven 18 minutes after being turned on?
What is the temperature of the oven t minutes after being turned on?
Answer: 245
Step-by-step explanation:
If you multiply 10 degrees by 18 that gets you 180. Add that to 65 and you get your total.
Answer:
temp after 18 minutes: 245
temp after t minutes: 65+10t
the perimeter of a jamaican flag is 90 inches. the length is twice its width. find the dimensions of the flag
Answer:
width = 15 inches
length = 30 inches
Step-by-step explanation:
Finding the dimensions of a rectangular flag:\(\sf \boxed{\text{\bf Perimeter of rectangle =2*length + 2*width}}\)
Let width = x inches
Length = 2*x = 2x inches
Perimeter = 90 inches
2 *length + 2* width = 90
2*2x + 2*x = 90
4x + 2x = 90
Combine like terms,
6x = 90
Divide both sides by 6,
x = 90/6
x = 15
Dimensions:
Width = 15 inches
Length = 2*15 = 30 inches.
10
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
A system of linear equations is given by the tables. One of the tables is represented by the equation y=-3x + 7
X
у
х
y
0
5
-6
9
3
6
-3
8
6
7.
0
7
9
8
3
6
The equation that represents the other equation is y =
X+ .
The solution of the system is (
Reset
Next
Answer: The equation that represents the other equation is \(y=\dfrac{1}{3}x+5\) .
The solution of the system is (3,6).
Step-by-step explanation:
Linear equation: \(y=mx+c\) , where m= slope
c = y-intercept.
In the first table, the y-intercept = 5 [ y-intercept = value of y at x=0.
Slope for first table = \(\dfrac{y_2-y_2}{x_2-x_1}=\dfrac{6-5}{3-0}=\dfrac{1}{3}\)
The equation that represents the first table:
\(y=\dfrac{1}{3}x+5\)
So, the equation that represents the other equation is \(y=\dfrac{1}{3}x+5\) .
Also, the solution of the system is the common point (x,y) that satisfy both equations in the system.
Here, x=3 and y=6 is the common value in both tables.
So, the solution of the system is (3,6).
The linear equation of the first table is y = 1 / 3 x + 5
The solution to the system of equation is (3, 6)
Point slope equation;y = mx + bwhere
m = slope
b = y-intercept
Therefore, y = - 1 /3 x + 7 is the equation for the second table.
The equation for the first table can be solved using (0, 5)(3, 6) from the table. Therefore,
m = 6 - 5 / 3 - 0 = 1 / 3
let's find b using (0, 5)
5 = 1 / 3(0) + b
b = 5
Therefore, the equation of the first table is as follows:
y = 1 / 3 x + 5The solution to the system of equation can be calculated as follows:
y + 1 /3 x = 7
y - 1 / 3 x = 5
2y = 12
y = 12 / 2
y = 6
6 - 1 / 3 x = 5
- 1 / 3 x = 5 - 6
- 1 / 3 x = - 1
x = 3
Therefore, the solution to the system of equation is (3, 6)
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A building is constructed using bricks that can be modeled as right rectangular prisms with a dimension of 7 1/4 by 3,3 1/4 in. If the bricks weigh 0.08 ounces per cubic inch and cost $0.07 per ounce, find the cost of 250 bricks. Round your answer to the nearest cent.
a quadrilateral has 1 pair of equal sides what 2 shapes can it be
Answer: Square and rectangle
Step-by-step explanation:
Nicole is selling wing plates to fundraise. She's selling the plates for $7 each. She spent $147 on the ingredients and package for the plates. Which equation represents M, her profit of money, after selling p plates of wings?
Answer:
M = 7p - 147
Step-by-step explanation:
Nicole is selling wing plates to fund raise. She's selling the plates for $7 each. She spent $147 on the ingredients and package for the plates. Which equation represents M, her profit of money, after selling p plates of wings?
profit - sales - cost of goods sold
where p = number of plates sold
M = 7p - 147
Please help due in 10 min
9x?=3/2+ 3/2 + 3/2 10 pts for correct answer
A fraction is a way to describe a part of a whole. The fraction that can replace the question mark is 1/2.
What is a Fraction?A fraction is a way to describe a part of a whole. such as the fraction ¼ can be described as 0.25.
The fraction that can replace the question mark is,
9 × ? = (3/2) + (3/2) + (3/2)
9 × ? = 3(3/2)
9 × ? = 9/2
9 × ? = 9/2
? = 9/(2×9)
? = 1/2
Hence, the fraction that can replace the question mark is 1/2.
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Write an expression to display a loss of 42 yards on the football field
Answer:
Step-by-step explanation:
An expression to display a loss of 42 yards on the football field would be: -42 yards.
The negative sign in front of the number 42 indicates a loss or a decrease in the yards, which represents a loss of 42 yards on the football field.
3) A moving target at a police academy target range can be hit 88% of the time by a particular individual. Suppose that as part of a training exercise, eight shots are taken at a moving target. a) What 3 characteristics of this scenario indicate that you are working with Bernoulli trials? b) What is the probability of hitting the 6
th
target (Hint: think of this as a single trial)? c) What is the probability that the first time hitting the target is not until the 4 th shot?
a. The probability of success (hitting the target) is constant for each trial (88% or 0.88).
b. The probability of hitting the 6th target is:
P(X = 1) = C(1, 1) * 0.88^1 * (1 - 0.88)^(1 - 1) = 0.88
c. Using the binomial probability formula as before, with p = 0.88 and n = 3:
P(X = 1) = C(3, 1) * 0.88^1 * (1 - 0.88)^(3 - 1)
P(X = 2) = C(3, 2) * 0.88^2 * (1 - 0.88)^(3 - 2)
P(X = 3) = C(3, 3) * 0.88^3 * (1 - 0.88)^(3 - 3)
a) The three characteristics of this scenario that indicate we are working with Bernoulli trials are:
The experiment consists of a fixed number of trials (eight shots).
Each trial (shot) has two possible outcomes: hitting the target or missing the target.
The probability of success (hitting the target) is constant for each trial (88% or 0.88).
b) To find the probability of hitting the 6th target (considered as a single trial), we can use the binomial probability formula:
P(X = k) = C(n, k) * p^k * (1 - p)^(n - k)
where:
P(X = k) is the probability of getting exactly k successes,
C(n, k) is the binomial coefficient or number of ways to choose k successes out of n trials,
p is the probability of success in a single trial, and
n is the total number of trials.
In this case, k = 1 (hitting the target once), p = 0.88, and n = 1. Therefore, the probability of hitting the 6th target is:
P(X = 1) = C(1, 1) * 0.88^1 * (1 - 0.88)^(1 - 1) = 0.88
c) To find the probability that the first time hitting the target is not until the 4th shot, we need to consider the complementary event. The complementary event is hitting the target before the 4th shot.
P(not hitting until the 4th shot) = P(hitting on the 4th shot or later) = 1 - P(hitting on or before the 3rd shot)
The probability of hitting on or before the 3rd shot is the sum of the probabilities of hitting on the 1st, 2nd, and 3rd shots:
P(hitting on or before the 3rd shot) = P(X ≤ 3) = P(X = 1) + P(X = 2) + P(X = 3)
Using the binomial probability formula as before, with p = 0.88 and n = 3:
P(X = 1) = C(3, 1) * 0.88^1 * (1 - 0.88)^(3 - 1)
P(X = 2) = C(3, 2) * 0.88^2 * (1 - 0.88)^(3 - 2)
P(X = 3) = C(3, 3) * 0.88^3 * (1 - 0.88)^(3 - 3)
Calculate these probabilities and sum them up to find P(hitting on or before the 3rd shot), and then subtract from 1 to find the desired probability.
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Write an equation for each circle
1. center (-1,-5);r = 2 units
3. center (-8, 7); r = 12 unit
5. center (0.5, 0.7); r = 13.5 unitsand
is 4.680 rational or irrational
Answer:
I believe ... yes
Step-by-step explanation:
A rose garden is formed by joining a rectangle and a semicircle, as shown below. The rectangle is 21ft long and 14ft wide. If the gardener wants to build a fence around the garden, how many feet of fence are required?
Answer: 70
Step-by-step explanation: 21+21+14+14
This recipe makes 4 pancakes.
Sanjay follows the recipe but wants to make 24 pancakes.
How much of each ingredient does he need?
Recipe: Makes 4
135 g flour
1 teaspoon (tsp) baking powder
2 tablespoons (tbsps) sugar
130 ml milk
1 egg
2 tablespoons (tbsps) oil
Answer:
810 g flour
6 teaspoon (tsp) baking powder
12 tablespoons (tbsps) sugar
780 ml milk
6 egg
12 tablespoons (tbsps) oil
Step-by-step explanation:
24/4=6, so you need to multiply everything by six
square root of 63 in simplest radical form
Answer: 3√737
hope this helps ;)
1+1=?????????????????????????????.
Answer:
3
Step-by-step explanation:
ur welcome
Answer:
2
Step-by-step explanation:
I hope that helped
help me on this question. would be nice if you could also graph it as well
From a prior national study, we are able to infer that the probability of a high school student going to college, when the parents make over $75,000 per year, is about 0.60. assume that toms river has 125 graduating seniors next year, and all the parents are assumed to make over $75,000. if six students are randomly selected, what is the probability that less than two of them will actually go to college?
The probability of less than two students going to college if six students are randomly selected from a school of 125 graduating seniors, and all the parents make over $75,000 per year is 0.0014 or 0.14%.
Given, Probability of a high school student going to college, when the parents make over $75,000 per year is 0.60.The total number of graduating seniors is 125.And, six students are randomly selected.
Let X be the number of students who go to college.If we assume that each student is independent of each other, then the probability that a student goes to college is 0.60, and the probability that a student does not go to college is 1 - 0.60 = 0.40.
Then the probability mass function of X is given by,\(P(X = k) = nCk * pk * (1 - p)n - kwhere n = 6, k = 0,1.P(X < 2) = P(X = 0) + P(X = 1) = (6C0 * 0.6^0 * 0.4^6) + (6C1 * 0.6^1 * 0.4^5) = (1 * 1 * 0.01024) + (6 * 0.6 * 0.32768) = 0.0014\)or 0.14%.Therefore, the probability that less than two students will actually go to college is 0.0014 or 0.14%.
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help me please
A triangle has two sides of length 4 and 7. What is the smallest possible whole-number length for the third side?
Answer:
The smallest possible length for the 3rd side must be 4
Step-by-step explanation:
Any 2 sides combined must be greater than the 3rd side
Trina examined the equation below and said that the equation has exactly one solution. Negative 8 (x minus 4) + 2 x = negative 4 (x minus 8) minus 2 x Which explains whether Trina is correct? Trina is correct because the two sides of the equation are equivalent. Trina is correct because the two sides of the equation are not equivalent. Trina is not correct because the two sides of the equation are equivalent. Trina is not correct because the two sides of the equation are not equivalent.
Answer: C
Step-by-step explanation:
I just took the test
The correct answer is C. Trina is not correct because the two sides of the equation are equivalent.
What is an equation?The equation in mathematics is the relationship between the variables and the number and establishes the relationship between the two or more variables.
1. Let's solve for x
-8(x - 4) + 2x = -4(x - 8) -2x
-8x + 32 + 2x = -4x + 32 -2x
-6x + 32 = - 6x + 32
0 = 0
This equation has infinite solutions, any rational number fits as a solution for x in this equation. And as we can see both sides of it are equivalent.
Therefore, the correct answer is C. Trina is not correct because the two sides of the equation are equivalent.
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A curve is given by the parametric equations x = cos 2t * a * n * d * y = sin t , then the cartesian equation of the curve is given by: a x = y ^ 2 + 1; y ^ 2 = (1 - x)/2; x ^ 2 + y ^ 2 = 1; x ^ 2 = (1 - y)/2; y ^ 2 = x + 1 d e
Answer:
Y² = (1-X) / 2
Step-by-step explanation:
According To The Question, We Have
X= Cos2t & Y= Sint
the cartesian equation of the curve is given by Y² = (1-X) / 2 .
Proof, Put The Value of X & Y in Cartesian Equation, We get
Sin²t = {1-(1-2×Sin²t)} / 2 [∴ Cos2t = 1 - 2×Sin²t]
Taking R.H.S
(1-1+2×Sin²t)/22Sin²t/2 ⇔ Sin²t = L.H.S (Hence Proved)Jyotsana bought 4000 eggs at 8.40rs a dozen. At what price per hundred must she sell them so as to earn a profit of 15%
Jyotsana must sell the eggs at a price of 80.5 rs per hundred eggs to earn a profit of 15%.
Jyotsana bought 4000 eggs at a rate of 8.40 rs per dozen. We can calculate the cost of one egg as follows:
Cost of 1 egg = (Cost of 1 dozen) / 12
Cost of 1 egg = 8.40 / 12
Cost of 1 egg = 0.70 rs
To earn a profit of 15%, Jyotsana needs to sell the eggs at a price that is 15% more than her cost price. Let's call this selling price "x". To calculate "x", we need to first calculate the cost of 100 eggs, which is:
Cost of 100 eggs = 100 × Cost of 1 egg
Cost of 100 eggs = 100 × 0.70
Cost of 100 eggs = 70 rs
Now, Jyotsana wants to earn a profit of 15% on her cost price, which means her selling price should be:
x = Cost price per hundred eggs + 15% of Cost price per hundred eggs
x = 70 + (15/100) × 70
x = 70 + 10.5
x = 80.5 rs
Therefore, Jyotsana must sell the eggs at a price of 80.5 rs per hundred eggs to earn a profit of 15%.
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If sin(0) > 0, then in which quadrants could 0 lie? Select all correct answers.
Select all that apply:
Quadrant I
Quadrant II
Quadrant III
Quadrant IV
Answer:
I and IV
Step-by-step explanation:
based on the unity circle 0 and 360 is on the same plane..hope it's answerd
A sample of 40 provided a sample mean of 26.2. the population standard deviation is 6. Find the value of the test statistic. (round your answer to two decimal places.) (b) find the p-value. (round your answer to four decimal places.) p-value
Answer:
a. 1.26
b. 0.1038
Step-by-step explanation:
The p-value is 1.0000 (rounded to four decimal places). This means that we fail to reject the null hypothesis, which in this case would be that the population mean is equal to the sample mean of 26.2.
To find the test statistic, we need to use the formula:
test statistic = (sample mean - population mean) / (standard deviation / square root of sample size)
Since the population standard deviation is given as 6, we can plug in the values:
test statistic = (26.2 - population mean) / (6 / √40)
To find the population mean, we can use the fact that the sample mean is an unbiased estimator of the population mean, so:
population mean = sample mean = 26.2
Plugging in the values, we get:
test statistic = (26.2 - 26.2) / (6 / √40) = 0
The test statistic is 0.
To find the p-value, we need to use a t-distribution table or calculator. Since we have a sample size of 40, we can use the t-distribution with 39 degrees of freedom.
Using a calculator or table, we can find that the area to the right of 0 (since the test statistic is 0) is 0.5. Since this is a two-tailed test, we need to double this value to get the p-value:
p-value = 2 * 0.5 = 1.0000
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For positive acute angles a an b, it is known that cos A =4/5 and sinB = 8/17. Find the exact value of sun (A-B) in simplest form
The exact value of sin (A-B) in simplest form for positive acute angle A and B is found to be 221/1445.
We can use the trigonometric identity sin(A - B) = sinAcosB - cosAsinB to find the exact value of sin(A - B) for positive acute angles.
From the given information, we know that cosA = 4/5 and sinB = 8/17. Using identities, sin²A + cos²A = 1 and sin²B + cos²B = 1:
sinA = √(1 - cos²A)
= √(1 - (4/5)²)
= 3/5
cosB = √(1 - sin²B)
= √(1 - (8/17)²)
= 15/17
Now, we can substitute these values into the identity:
sin(A - B) = sinAcosB - cosAsinB
sin(A - B) = (3/5)(15/17) - (4/5)(8/17)
sin(A - B) = 9/17 - 32/85
sin(A - B) = (765 - 544)/1445
sin(A - B) = 221/1445
Therefore, the exact value of sin(A - B) in simplest form is 221/1445.
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question 1: The bank agrees to give you a loan of $4,000 with 1% simple interest over 2 years. How much will your monthly payments be?
question 2: The bank agrees to give you a loan of $3,000 with 2% simple interest over 1 year. How much will your monthly payments be?
Answer:
Its below
Step-by-step explanation:
1. 2000
2. 233
Talisa says that she has 34 colored pencils in her art box. her friend jaime has 58 colored pencils in her box. about how many more colored pencils does jaime have than talisa ? use rounding to help you decide.
The colored pencils does jaime have more than talisa is 24
what is arithmetic operator?An arithmetic operator is a mathematical function that takes two operands and performs a calculation on them.
They are used in common arithmetic and most computer languages contain a set of such operators that can be used within equations to perform a number of types of sequential calculation. Basic arithmetic operators include:
:-Addition (+)
:-Subtraction (-)
:-Multiplication (×)
:-Division (÷)
so;
A.T.Q:-
The colored pencils does talisa have are 34
The colored pencils does jaime have are 58
∴ by using arithmetic operator Subtraction (-) , we conclude that how more colored pencils does jaime have than talisa
∵ jaime's colored pencils - talisa's colored pencils
⇒ 58- 34
⇒24
hence; jaime have 24 pencils more than talisa
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What is this expression in simplified form?
4
14
−
11
14
A.
−
7
14
B.
7
14
C.
−
7
D. -49
The simplified form of the expression is -7/14, which is option C.
What is the fraction?A fraction represents a portion of a whole. This whole may refer to a place or a group of places. The Latin word "fractio," which means "to break," is the source of the English word "fraction." The division of food and supplies as well as the lack of a bullion currency were among the mathematical issues that the Egyptians used fractions to solve because they were the first civilization to study fractions.
A fraction represents a part of a number or any number of equal parts. There is a fraction, containing numerator(upper value) and denominator(lower value).
The expression 4/14 - 11/14 can be simplified by finding a common denominator and combining the fractions:
4/14 - 11/14 = (4 - 11)/14 = -7/14
Hence, the simplified form of the expression is -7/14, which is option C.
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Find the x and y intercepts of the equation: 5x−7y=−105
Answer:
X intercepts: (21,0)
Y intercepts: (0, -15)
Step-by-step explanation:
To find the x-intercept, substitute 0 for y and solve for x. To find the y-intercept, substitute in 0 for x and solve for y.
Your job starts at 4:00 pm and ends at 8:30 pm. How many minutes is that
Answer:
it is 270 minutes