Please factorise 14cd – 7c

Answer:

The slope is 2

Step-by-step explanation:

Using slope formula (y2-y1)/(x2-x1):

(8-2)/(9-6)

(6)/3

2

Answer:

3

Step-by-step explanation: took test edge

Answer:

Linear equation: y = 4300(w) + 0.05(s)???

sorry

The smallest positive debt that can be paid off using sticker trading is $7$ dollars.

To find the smallest positive debt that can be paid off using sticker trading, we need to consider the values of the stickers (in dollars) and find the smallest positive amount that can be reached through a combination of these values.

Given that a Harry Potter sticker is worth $49 and a Twilight sticker is worth $35, we can approach this problem using the concept of the greatest common divisor (GCD) of these two values.

The GCD of $49$ and $35$ is $7$. This means that any multiple of the GCD can be represented using these sticker values.

In other words, any positive multiple of $7$ dollars can be paid off using sticker trading.

Therefore, the smallest positive debt that can be paid off using sticker trading is $7$ dollars.

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Answer:

$210 when round up

Step-by-step explanation:

To find the total estimate for the repairs, we need to add up the cost of each individual repair.

Wheel alignment: $110

Transmission fluid flush: $75

Cabin air filter: $23

Total estimate = $110 + $75 + $23 = $208

Pam rounded the costs to the nearest $10, so the total estimate may not be exactly $208, but it will be close to it.

Answer: C. 6 inches high, 4 inches wide, and 10 inches long

Step-by-step explanation:

A scale model will have to use a scale factor that ensures that the actual measurements can be accurately converted to the scale model measurements in an equivalent manner.

This means that the real measurements need to be uniform when converted by the scale factor to the scale model. In other words, in this scenario for instance, when the scale measurements are divided by the real measurements, they should give the same scale factor.

Option C is correct because all the measurements give the same scale factor when divided as opposed to the rest.

Height = Scale/ Real = 6/3 = 2

Width = 4/2 = 2

Length = 10/5 = 2

They all use the scale factor of 1 feet: 2 inches so option C is correct.

Answer:

The answer is \(x=-16\) ±\(2\sqrt{3}\) in exact form or \(x=-12.535898\), \(x=-19.464102\) in decimal form.

Step-by-step explanation:

To solve this problem, start by moving all terms to the left side of the equation and simplify. Simplify the equation by subtracting 12 from both sides of the equation and squaring \(x+16\), which will look like \(x^{2} +32x+256-12=0\). Next, simplify the equation again, which will look like \(x^{2} +32x+244=0\).

Then, use the quadratic formula to find the solutions. The quadratic formula looks like\(\frac{-b(+-)\sqrt{b^{2}-4ac } }{2a}\).

For this problem, the quadratic variables are as follows:

\(a=1\)

\(b=32\)

\(c=244\)

The next step is to substitute the values \(a=1\), \(b=32\), and \(c=244\) into the quadratic formula and solve. The quadratic formula will look like \(\frac{-32(+-)\sqrt{32^2-4(1*244)} }{2*1}\). To simplify the equation, start by simplifying the numerator, which will look like \(x=\frac{-32(+-)4\sqrt{3} }{2*1}\). Then, multiply 2 by 1 and simplify the equation, which will look like \(x=-16(+-)2\sqrt{3}\). The final answer is \(x=-16\) ±\(2\sqrt{3}\) in exact form. In decimal form, the final answer is \(x=-12.535898\), \(x=-19.464102\).  

The total number of possible outcomes equals the product of the possible outcomes for each dice. Then, that total number is equal to:

From those possible outcomes, only one combination gives 12 as a result, which is 6 on both dices.

Then, the probability that the sum will be 12, is equal to:

Answer:8

Step-by-step explanation:8x1=8

Answer:

hello your question is incomplete attached below is the complete question

answer : The population mean LDL level after six months is same for all four treatments

Step-by-step explanation:

A null hypothesis represents a no difference in the question. therefore the correct option is The population mean LDL level after six months is same for all four treatments

Answer:

45.33333333333

Step-by-step explanation:

A store sells 5 oranges and 10 apples.

What is the cost amount?

The cost of an asset to you often serves as its basis. The cost is the sum that you pay for it using money, debt, other goods, or services. Sales tax and other purchase-related costs are included in the price.

Here, we have

Given: A store sells oranges and apples. Oranges cost $1.00 each and apples cost $2.00 each. In the first sale of the day, 15 fruits were sold in total, and the price was $25.

We have to determine how many of each type of fruit were sold.

We, let the oranges be x.

let the apples be y.

x + y = 15...(1)

1x + 2y = 25...(2)

We subtract equation(2) from equation(1), we get

y = 10

Now we put the value of y in equation (1) and we get

x + 10 = 15

x= 5

Hence, a store sells 5 oranges and 10 apples.

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Answer:

0.512xx

Step-by-step explanation:

100% - 36% = 64%

64% = 0.64

thus after 1st yr, she is left with the value of 0.64xx

100% - 20% = 80%

80% = 0.8

thus after 2nd yr, she is left with the value of 0.8 x (0.64xx) = 0.512xx

Answer:

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Step-by-step explanation:

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Answer:

3 minutes

Step-by-step explanation:

If we assume Alan's reading speed to be the same throughout, then we can find the minutes he takes to walk 1 block by unitary method.

Given,

Alan walks 1 block in 3 minutes.

The most reliable results would come from randomly selecting 50 batteries throughout the day and testing to determine if they function.

A voltage reading, a pulse or AC impedance measurement of internal resistance, coulomb counting, and electrochemical impedance spectroscopy are some of the test techniques available (EIS).

The red probe should be connected to the positive terminal of the battery, and the black probe should be connected to the negative terminal. Take the multimeter's reading. The battery is still safe to use if the reading for a 9V battery is greater than 7V.

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The value of length and width of the rectangle is L = 28.8 yd , W = 7.2 yd

In the above question, it is given that

Let the length be L and width be W of the given Rectangle

The length of a rectangle is 4yd longer than its width

We can write it in mathematical equation as,

L = 4W  ......eqn 1

Also, it is given that, the perimeter of the rectangle is = 72yd

And, we know that, the perimeter of rectangle = 2(L+ W)

72 = 2(L + W)

Putting value of eqn 1 in the above equation, we will get,

72 = 2( 4W + W)

36 = 5W

W = 7.2 yd

Putting the value of W = 7.2yd in eqn 1 we get,

L = 4( 7.2)

L = 28.8 yd

Hence, the value of length and width of the rectangle is L = 28.8 yd , W = 7.2 yd

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Every three candy bars cost a dollar.

Divide 25 by three.  

$8.33

Answer:

The answer to your problem is B.

The ratio of the number of baskets scored by team A to the number of baskets by team B is 2: 5. Then the correct option is B.

In a basketball game, team B scored 5 baskets for every 2 that team A scored.

The utilization of two or more additional numbers that compares is known as the ratio.

Assume that Team A scored two baskets while Team B netted five.

The problem statement states that for every two baskets Team A scored, Team B scored five. This may be expressed as the ratio shown below:

Ratio = 2x : 5x

Ratio = 2: 5

Thus, the correct option is B.

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It seems you havent posted a graph

The inequality system that is represented in the graph are-

y < -x -1 and y ≤ x + 2.

Consider two point on dotted line.

(-1, 0) and (-2, 1)

Fine slope m:

m = (1 - 0)/(-2 + 1)

m = -1

Equation of line:

y - 0 = (-1)(x + 1)

y = -x -1

In the  inequality system.

y < -x -1

Consider two point on bold line.

(0,2) and (-2, 0)

Fine slope m:

m = (0 - 2)/(-2 -0)

m = 1

Equation of line:

y - 2 = (1)(x + 0)

y = x + 2

In the inequality system.

y ≤ x + 2

Thus, the inequality system that is represented in the graph are-

y < -x -1 and y ≤ x + 2.

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Answer:

I believe it would be 4 seconds

Step-by-step explanation:

PLATO/Edmentum

The time it takes for the friend in the left seat to move upward, downward, and then back to the initial position is 4 seconds.

A function assigns the value of each element of one set to the other specific element of another set.

Two friends are sitting on a seesaw at the park. The height, h(t), of the left seat, in inches above the ground, is modeled by a sine function.

Let t represent the time, in seconds, since the friends started seesawing.

The friends start seesawing with the plank in a level position. The initial position at 0 of them is at 24.

The group has to come back to this position after moving upward and downward. The time it takes to reach upward is,

\(f(48)=t_{up}\\f(48)=1\)

The time it takes to reach downward after going upward is,

\(f(0)=t_{down}\\f(0)=3\)

Coming back to initial potion,

\(f(24)=t_{i}\\f(24)=4\)

Thus, the time it takes for the friend in the left seat to move upward, downward, and then back to the initial position is 4 seconds.

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Answer:

Area of the shape is 244.98cm² is B

Step-by-step explanation:

Area of shape=Area of semi circle+Area of trapezoid

A=1/2 πr² + 1/2(a+b)h

A=1/2×3.142×7² + 1/2(14+18)10.5

A=1/2×3.142×49 + 1/2×32×10.5

A=76.98+168

A=76.98+168

A=244.98cm²

In an analysis of variance, The treatment which is directly influenced by the size of the sample mean differences is SSbetween treatments

the value of SS(between) is between 30.

As ,

SS(between)

= SS(total) - SS(within)

= 70 - 40 = 30

ANOVA is a collection of statistical models and their related estimate processes (such as "variance" among and across groups) used to assess mean differences.

Ronald Fisher, a statistician, invented ANOVA. ANOVA is based on the law of total variance, which divides the observed variance in a variable into components attributed to different causes of variation.

In its most basic version, ANOVA gives a statistical test to determine if two or more population means are equal, and therefore extends the t-test beyond two means. To put it another way, the ANOVA is used to compare the differences between two or more means.

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Answer:

C

Step-by-step explanation:

\(\left(\frac{f}{g} \right)(x)=\frac{f(x)}{g(x)} \\ \\ \frac{f(x)}{g(x)}=\frac{\sqrt[3]{2x}}{2x+1}\)

The denominator cannot equal 0, so:

\(2x+1 \neq 0 \implies x \neq -\frac{1}{2}\)

Answer:

h(x) = -x+3

h(7) = -7+3

h = -4

Step-by-step explanation:

The answer is going to be -4 but Im still not sure tho.

Answer:

\(-\frac{75}{4}\)

Step-by-step explanation:

Determine the determinant

\(\frac{9}{2}*(-\frac{9}{2})-(-1)*\frac{3}{2}\)

Multiply / Remove parentheses

\(-\frac{81}{4} +\frac{3}{2}\)

Calculate

\(-\frac{75}{4}\)

Answer/Step-by-step explanation:

Based on the factor theorem, a polynomial, x - a, is said to be a factor of another polynomial, f(x), if an only if f(a) = 0.

Using this theorem, let's determine whether each of the given first polynomial, is a factor of the second polynomial.

1. x - 1; x² + 2x + 5

By the factor theorem, x - 1 will be a factor of f(x) = x² + 2x + 5, if and only if f(1) = 0.

f(1) = 1² + 2(1) + 5

= 1 + 2 + 5

= 8

Since f(1) ≠ 0, therefore the first polynomial, x - 1, is NOT a factor of the second polynomial, x² + 2x + 5.

2. x + 1; x³ - x - 2

By the factor theorem, x + 1 will be a factor of f(x) = x³ - x - 2, if and only if f(-1) = 0.

f(1) = -1³ - (-1) - 2

= -1 + 1 - 2

= -2

Since f(-1) ≠ 0, therefore the first polynomial, x + 1, is NOT a factor of the second polynomial, x³ - x - 2.

3. x - 4; 2x³ - 9x² + 9x - 20

By the factor theorem, x - 4 will be a factor of f(x) = 2x³ - 9x² + 9x - 20, if and only if f(4) = 0.

f(4) = 2(4)³ - 9(4)² + 9(4) - 20

= 128 - 144 + 36 - 20

= 0

Since f(4) = 0, therefore the first polynomial, x + 4, is a factor of the second polynomial, 2x³ - 9x² + 9x - 20.

4. a - 1; a³ - 2a² + a - 2

By the factor theorem, a - 1 will be a factor of f(a) = a³ - 2a² + a - 2, if and only if f(1) = 0.

f(1) = 1³ - 2(1)² + 1 - 2

= 1 - 2 + 1 - 2

= -2

Since f(1) ≠ 0, therefore the first polynomial, a - 1, is NOT a factor of the second polynomial, a³ - 2a² + a - 2.

5. y + 3; 2y³ + y² - 13y + 6

By the factor theorem, y + 3 will be a factor of f(y) = 2y³ + y² - 13y + 6, if and only if f(-3) = 0.

f(-3) = 2(-3)³ + (-3)² - 13(-3) + 6

= -54 + 9 + 39 + 6

= 0

Since f(-3) = 0, therefore the first polynomial, y + 3, is a factor of the second polynomial, 2y³ + y² - 13y + 6.

Answer:

Answer: A) 15

A natural number is basically a counting number {1, 2, 3, 4, 5, ...} so any positive whole number. That is why 15 is the answer. Choices B and D are fractional values, so we can rule them out. We can rule out choice C because this value is negative.

Step-by-step explanation: