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4 years ago

Help please!! Simplify the problem. – a + 5b – 6a + 5(a + 1)

Mathematics

1 answer:

satela [25.4K]4 years ago

5 0

Answer:

-2a+5b+5

Step-by-step explanation:

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If r = .89, the line of best fit has ______________ correlation. *

Lesechka [4]

Answer: moderate positive correlation

Step-by-step explanation: If your correlation coefficient is positive, that means that your slope which is how steep the line is or your line of best fit must also be positive.

Remember that the correlation coefficient is just a number that indicates the direction and closeness of points of a line of best fit.

If it has a correlation coefficient of 0.89, the points would be close together but not very very close.

3 0

3 years ago

Please solve this problem using like terms! 10+4(−8q−4)

jarptica [38.1K]

Answer:

−32q−6

Step-by-step explanation:

10+4(−8q)+4⋅−410+4(-8q)+4⋅-4

Multiply −8-8 by 44.

10−32q+4⋅−410-32q+4⋅-4

Multiply 44 by −4-4.

10−32q−1610-32q-16

Subtract 1616 from 1010.

4 0

3 years ago

The monthly profit for a small company that makes long-sleeve T-shirts depends on the price per shirt. If the price is too high,

Andrej [43]

Answer:

A. $18

B. $200

C. $p\in (16,20)$

Step-by-step explanation:

Function:

$f(p) = -50p^2 + 1,800p - 16,000$

Parts A and B:

The price that generates the maximum profit is ate vertex of parabola. Find the coordinates of the vertex:

$p_v=\dfrac{-b}{2a}=\dfrac{-1,800}{2\cdot (-50)}=\dfrac{1,800}{100}=18\\ \\f(p_v)=-50\cdot 18^2+1,800\cdot 18-16,000=200$

The price that generates the maximum profit is $18

The maximum profit is $200

Part C:

The company breaks even when the profit is positive. From the graph of the function you can see that the graph of the function is over p-axis for all $p\in (16,20)$ , so the positive profit is for $p\in (16,20)$

In p=16 and p=20, the profit is 0 and when p<16 and p>20, there will be a loss.

7 0

4 years ago

If |x| = 6 then x = -6 or

Keith_Richards [23]

The integers 6 and -6 both have the absolute value of 6.
Remember that absolute value is the distance from the number and 0 on a number line.

Final answer: x=-6 or x=6

7 0

4 years ago

PLEASE ANSWER!! I don’t understand

iVinArrow [24]

Answer:

$m\angle 2=122^{\circ},\\m\angle 1 = 58^{\circ}$

Step-by-step explanation:

By definition, tangent lines touch a circle at one point. This one point intersects the circle at a 90 degree angle.

In any circle, the measure of an inscribed angle is exactly half of the arc it forms. Since $\angle 2$ forms an arc labelled 244 degrees, the measure of angle 2 must be $\frac{244}{2}=\boxed{122^{\circ}}$ .

Angle 1 and 2 form one side of a line. Since there are 180 degrees on each side of the line, we have:

$\angle 1+\angle 2=180,\\\angle 1 + 122=180,\\\angle 1=180-122=\boxed{58^{\circ}}$

8 0

3 years ago