c) A triangle has one pair of equal sides and one pair of equal angles
What is it called?​

The class width of a frequency distribution is the difference between the upper class limit of a class and the lower class limit of the same class. In other words, it represents the range of data values included in a particular class.

For example, suppose we have a frequency distribution with the following classes: 0-9, 10-19, 20-29, 30-39, and 40-49.

The class width of this frequency distribution would be the same for all classes and would be equal to 10. This is because the upper class limit of each class is 9, 19, 29, 39, and 49, respectively, and the lower class limit of each class is 0, 10, 20, 30, and 40, respectively. Therefore, the difference between the upper class limit and lower class limit for each class is 9, 9, 9, 9, and 9, respectively, giving a class width of 10.

In the given problem, the first class is 10-19 and the second class is 20-29. Therefore, the lower class limit of the first class is 10 and the upper class limit of the second class is 29.

Therefore, the class width is the difference between the upper class limit of the second class (29) and the lower class limit of the first class (10), which is equal to 29 - 10 = 19.

So the correct answer is 19.

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Answer:

r=-2

Step-by-step explanation:

\(-88=11(r-6)\\\frac{-88}{11}=\frac{11(r-6)}{11}\\-8=r-6\\-8+6=r-6+6\\r=-2\)

Answer:

r = -2

Step-by-step explanation:

Isolate the variable, r. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operation, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Addition

Subtraction

~

First, divide 11 from both sides of the equation:

\(-88 = 11(r - 6)\\\\-\frac{88}{11} = \frac{ [11(r-6)]}{11}\\\\-8 = r - 6\)

Next, isolate the variable, r. Add 6 to both sides of the equation:

\(-8 = r - 6\\-8 (+6) = r - 6 (+6)\\r = -8 + 6\\r = -2\)

r = -2 is your answer.

~

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• P(x) = x² - 4x +3

• The zeroes of the quadratic polynomial .

• To verify the relationship .

•x² - 4x + 3 = 0

Split the middle term :

=> x² - 3x - x + 3 = 0

=> x ( x - 3) - 1 ( x - 3 ) = 0

=> (x - 1)( x - 3 ) = 0

• x - 1 = 0

=> x = 1 .

• x - 3 = 0

=> x = 3 .

Hence , the zeroes are 1 and 3 .

• x² - 4x +3 .

compare with ax² + bx + c we get ,

• a = 1 , b = -4 and c = 3 .

As we know that :

• Sum of Zeroes = -b/a

=> 1 + 3 = -(-4)/1

=> 4 = 4

LHS = RHS .

NOW ,

• Product of Zeroes = c/a

=> 1(3)= 3/1

=> 3 = 3

LHS = RHS .

Hence, Verified .

I hope it will help you.

Regards

The mass of the cone candle is volume of empty space = 0.15 cm

The property of a body that is a measure of its inertia and that is commonly taken as a measure of the amount of material it contains and causes it to have weight in a gravitational field

volume of empty space = volume of the cylinder - volume of water

First, we need to calculate the volume of the container

The volume of a cylinder = πr²h

where r = radius of the container   and  

h is the height of the container

r = 3cm  and h = 8 cm  

 π is a constant which is ≈ 3.14

volume of a cylinder = πr²h

                                 =3.14 × 3²×8

                                  =3.14×9×8

                                   =226.08 cm³

We will proceed to find the volume of water

since liquid will take the shape of its container,

then volume of water =  πr²h

r is the radius of the container   and    h is the height of the water

r = 2cm    and   h = 12cm      

volume of water =  πr²h

                            = 3.14 ×2²×12

                             =3.14×4×12

                             =75.56 cm³

volume of empty space = volume of the cylinder - volume of water

                                         =226.08 cm³    -    75.56 cm³ cm³

                                         = 150.52 cm³

Mass = Volume/1000

Mass = 150.52/1000 = 0.15052g

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If Tonya interviews an SRS of 50 of the 750 seniors in her school and finds that 36 plan to go to prom, the population and the parameter of interest are 750 and 36/750 respectively.

To find the population and the parameter of interest:

Hence, the population and the parameter of interest are 750 and 36/750 respectively.

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Answer:

a)

\(8(x + 5)\)

b)

\(13y + 10\)

Step-by-step explanation:

Answer:

(a) 1st, 2nd

(b) 4th

Step-by-step explanation:

(a) Option 1: Expanding with the distributive property, we have

\(8(x+5)=8x+8\cdot 5\\~~~~~~~~~~~~=8x+40,\)

which is equivalent.

Option 2: Multiplying the terms gives

\(8\cdot x+8\cdot 5= 8x+40\),

which is equivalent.

Option 3: We don't know what x is, so there is no way to write \(48x\) as \(8x+40\). This is not equivalent.

Option 4: Expanding with the distributive property gives

\(8(5x+1) = 8\cdot 5x+8\cdot1\\~~~~~~~~~~~~~=40x+8,\)

which is not equivalent.

(b) First, we combine like terms in the given expression:

\(12+14y-2-y=12-2+14y-y\\~~~~~~~~~~~~~~~~~~~~~~~=10+(14-1)y\\~~~~~~~~~~~~~~~~~~~~~~~=10+13y.\)

Looking at the given answer choices, only the fourth option is equivalent.

Answer:

ratio of boys to girls is

20 : 18

or

10 : 9

Step-by-step explanation:

Triangle KVM is similar to triangle BVG because angle M = angle G = 90° and angle V is common to both triangles.

Two triangles are similar if the angles are the same size or the corresponding sides are in the same ratio.

For two triangles to be similar, the corresponding angles must be congruent i.e equal.. Also the ratio of the corresponding sides of similar triangles are equal.

angle M and G are both 90° , this means they are equal.

angle KVM = BVG

therefore angle K = angle B

Since all the corresponding angles are equal, we can say triangle KVM is similar to triangle BVG

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Answer:

There were 8 kids at the party.

Step-by-step explanation:

144/18 = 8

8 X 18 = 144

There were 8 kids at the party.

Have a great day!

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Answer:

x=6

Step-by-step explanation:

i assume these are similar triangles so we can set them up as fractions

x/9=4/x

cross multiply

9(4)=x(x)

36=x^2

√.    √

6=x

and now we can check if each have the same ratio

6/9= 4/6

2/3=2/3

hopes this helps please mark brainliest

The probability of winning at least one award is 1 - 0.2373 = 0.7627 or 76.27%.

If the probability of winning an MTV music award after being nominated is 25%, the probability of not winning is 75%. Thus, the probability of not winning any of the five awards is (0.75)^5 = 0.2373.

As for how many awards Ariana Grande should expect to win, we can use the expected value formula: E(x) = n * p, where n is the number of trials (in this case, 5) and p is the probability of success (0.25). Therefore, E(x) = 5 * 0.25 = 1.25. So, Ariana Grande can expect to win about 1 award.

Finally, to calculate the standard deviation associated with this probability, we can use the formula: σ = sqrt(n * p * (1-p)). Plugging in the values, we get σ = sqrt(5 * 0.25 * 0.75) = 0.866. Therefore, the standard deviation associated with this probability is approximately 0.866.

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The system has exactly one solution, which is (p, q) = (-0.2118, -8.0).

We are given the system of equations:

1.7p - 0.34q = 0

0.17(q+1) - 0.85(p-1) = 0

We can simplify the second equation by distributing the 0.17 and 0.85 terms:

0.17q + 0.17 - 0.85p + 0.85 = 0

0.17q - 0.85p = -0.72

Now we have two equations in two variables, which we can solve using substitution or elimination. We will use elimination here.

Multiplying the first equation by 5, we get:

8.5p - 1.7q = 0

Multiplying the second equation by 2, we get:

0.34q - 1.7p = -1.44

Adding these two equations, we get:

6.8p = -1.44

p = -0.2118

Substituting this value of p into either of the original equations, we get:

1.7(-0.2118) - 0.34q = 0

q = -8.0

So the system has exactly one solution, which is (p, q) = (-0.2118, -8.0).

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The final answer for the expression is 3.2 × 10⁻⁴.

We can write the given expression as below:

(4×10−3)÷(5×105)8×10−88×10−70.8×1028×10−9 = (4/5) × (10⁻³ / 10⁵) × (8 / 8) × (10⁻⁸ / 10⁻⁷) × (0.8 × 10¹⁰ / 10⁻⁹)

On solving, we get

(4/5) × (10⁻³ / 10⁵) × (8 / 8) × (10⁻⁸ / 10⁻⁷) × (0.8 × 10¹⁰ / 10⁻⁹) = 0.00032

                                                                                               = 3.2 × 10⁻⁴

Hence, the final answer is 3.2 × 10⁻⁴.

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Step-by-step explanation:

30 cookies = 2 cups

1 cookie = 2/30 cups = 1/15 cups

40 cookies = 1/15 × 40 = 8/3 cups

Answer:

The answer is t= -2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Hoped this helped!

Could I perhaps get brainly, please?

Answer:

Solution:- In the given figure

Side of square= 10 cm

area of square =  side x side m= 10 x 10 = 100 sq cm

Now , diameter of semi circle AOD = 2r = 10cm

⇒ radius of  semi circle AOD = 5 cm

∴ area of AOD =  

similarly Area of semicircle BOC =  

Area of white portion in figure 1 = area of square - [ area of semicircle BOD + area of semicircle AOD]

=

Total area of white portion in the given figure=

∴Area of Shaded portion = area of square - area of total white portion

=  

So the area of shaded portion is  

Now perimeter of AD(which is a semicircle) = (as perimeter of semicircle=πr)

So the perimeter of shaded region = 4×perimeter of AD=4×15.7=62.8cm

Step-by-step explanation:

Answer: To find the percentage of people with an IQ score less than 117, we need to calculate the z-score first. The z-score measures how many standard deviations an individual score is from the mean in a normal distribution.

The z-score formula is given by:

z = (x - μ) / σ

Where:

Let's calculate the z-score:

Now, we need to find the percentage of people with a z-score less than 1.1333. We can look up this value in the standard normal distribution table (also known as the Z-table) or use statistical software/tools.

Using the Z-table, we find that the percentage of people with a z-score less than 1.1333 is approximately 0.8708, or 87.08% (rounded to the nearest hundredth).

Therefore, approximately 87.1% of people have an IQ score less than 117.

The number of child tickets were sold that day are 73.

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

We are given that;

Cost of child admission= $5.30

Cost of adult admission= $8.70

Now,

Let's assume that "c" represents the number of child tickets sold, and "a" represents the number of adult tickets sold. We can create two equations based on the given information:

c + a = 163 (equation 1: the total number of tickets sold)

5.30c + 8.70a = 1169.90 (equation 2: the total sales)

We can use equation 1 to solve for "a" in terms of "c":

a = 163 - c

Substituting this expression for "a" into equation 2, we get:

5.30c + 8.70(163 - c) = 1169.90

Simplifying and solving for "c", we get:

5.30c + 1418.10 - 8.70c = 1169.90

-3.4c = -248.20

c = 73

Therefore, by algebra the answer will be 73.

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Step-by-step explanation:

first inequality :

x + 2y ≥ 10

second inequality :

x - y ≤ -2

Because of this, we need to choose 15 integers in such a way that we can ensure that when they are divided by 14, at least two of them will provide the same residual.

In order to be sure that at least two of them have the same remainder when divided by 14.

Generally,  If you divide a number by 14, the result is a fraction. There are 14 remainders that might occur, and they are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and, 13.

So if we pick a number and divide it by 14, the remainder can be one of 14 (0 memory 13). So if we select 14 numbers, we have the option to select 14 unique memories ranging from 0 to 13.

Finally, if we choose another integer, we will have the same reminders according to the drawer principle, because there are only 14 reminders and 15 > 14.

Therefore, we should choose the number of 15 so that at least two numbers have the same remainder when divided by 14.

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Answer:

V = πr²(h/3)

Step-by-step explanation:

83.74 = πr²(5/3)

R = 4.00 in

Diamater = 2r = 2 x 4.00 = 8 inches

Answer:

2500

Step-by-step explanation:

i calculated it

2.5 Km can be expressed as 2500 in meters.

To convert from kilometers to meters,

The conversion factor for kilometers to meters is

1 kilometer = 1000 meters.

Given that we want to convert 2.5 kilometers to meters, we can use the conversion factor:

2.5 km x 1000 meters/kilometer

= 2500 meters

So, there are 2500 meters in 2.5 kilometers.

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The result of dividing 1240.64 by 12.5 and rounding appropriately is 99.

To compute the division of 1240.64 by 12.5, divide the dividend 1240.64 by the divisor 12.5:

1240.64 ÷ 12.5 = 99.2512

The quotient is 99.2512.

To round the answer appropriately, we need to determine the desired level of accuracy. In this case, we are asked to round the answer appropriately, so we will round to the nearest whole number.

Since the decimal part of the quotient, 0.2512, is less than 0.5, we round down the whole number part, 99, to get the rounded answer:

Rounded Answer: 99

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The required result of 1240.64 divided by 12.5, rounded to two decimal places, is 99.25.

To compute 1240.64 divided by 12.5, we can simply divide the two numbers:

1240.64 / 12.5 = 99.2512

Now, to round the answer appropriately, we need to consider the desired level of precision. If we want to round to two decimal places, we can round the answer to:

99.25

Therefore, the result of 1240.64 divided by 12.5, rounded to two decimal places, is 99.25.

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Answer:

confusing wording... read below ( 12/3 )

Step-by-step explanation:

if you meant adding fractions then the other answer, but if i read it right then 12/3. 12 divided by 3 = 4

Answer:

$2618.52

Step-by-step explanation:

we multiply each monthly payment by the total amount of monthly payments to figure out the overall cost

218.51*12 = 2618.52

Answer:

find the number of students who obtained more than 70 mark