I really need help . 12 points ​

By the product rule,

[tex](fg)'=f'g+fg'[/tex]

so that

[tex](fg)'(7)=f'(7)g(7)+f(7)g'(7)=10\cdot(-1)+4\cdot8=22[/tex]

By the quotient rule,

[tex]\left(\dfrac fg\right)'=\dfrac{f'g-fg'}{g^2}[/tex]

so that

[tex]\left(\dfrac fg\right)'(7)=\dfrac{f'(7)g(7)-f(7)g'(7)}{g(7)^2}=\dfrac{10\cdot(-1)-4\cdot8}{(-1)^2}=-42[/tex]

Answer:

the roots are {-4/3, 4/3}

Step-by-step explanation:

Begin the solution of 11=6|-2z| -5 by adding 5 to both sides:

11=6|-2z| -5 becomes 16 = 6|-2z|.

Dividing both sides by 12 yields

16/12 = |-z|

There are two cases here:  first, that one in which z is positive and second the one in which z is negative.

If z is positive, 4/3 = -z, and so z = -4/3, and:

If z is negative, 4/3 = z

Thus the roots are {-4/3, 4/3}

Answer:

Step-by-step explanation:

This problem is on the mensuration of flat shapes, sectors and arc.

we know that the area of a sector is given as

A=(∅/360)*πr^2

Given that the length of the wiper R=24 in

and the length of the blade r= 16in

To find the area of the wiped surface we only require the length of the blade as the radius

The area of the wiped surface is given as= (140/360)*3.142*16^2

A= 0.3888*3.142*256

A=312.7 in^2

Answer:

Answer: SW IS 1.5 OKKKKKKKKK

Answer:

The cost function of manufacturing this box is:

[tex]C_{T} = 2.15\cdot x^{2}+30\cdot x[/tex], where [tex]x[/tex] is the length of the box, measured in US dollars.

Step-by-step explanation:

From the statement we know that:

1) The box has a square base ([tex]w = l = x[/tex]).

2) The box has a depth of 10 inches ([tex]h = 10\,in[/tex]).

3) The cost of manufacturing the top of the box is $ 1.20 per square inch.

4) The cost of manufacturing the bottom of the box is $ 0.95 per square inch.

5) The cost of manufacturing each side of the box is $ 0.75 per square inch.

The total cost of manufacturing the box is:

[tex]C_{T} =C_{bottom} + C_{top} + 4\cdot C_{side}[/tex]

Where:

[tex]C_{bottom}[/tex] - Cost of the bottom of the box, measured in US dollars.

[tex]C_{top}[/tex] - Cost of the top of the box, measured in US dollars.

[tex]C_{side}[/tex] - Cost of the side of the box, measured in US dollars.

Dimensionally, cost equals unit cost, measured in US dollars by square inch, multiplied by surface area, measured in square inches. Now, the expression is expanded:

[tex]C_{T} = c_{bottom}\cdot x^{2}+c_{top}\cdot x^{2}+4\cdot c_{side}\cdot h\cdot x[/tex]

[tex]C_{T} =(c_{bottom}+c_{top})\cdot x^{2}+4\cdot c_{side}\cdot h \cdot x[/tex]

If we know that [tex]c_{bottom} = \$\,0.95\,in^{-2}[/tex], [tex]c_{top} = \$\,1.20\,in^{-2}[/tex], [tex]c_{side} = \$\,0.75\,in^{-2}[/tex] and [tex]h = 10\,in[/tex], the cost function of manufacturing this box is:

[tex]C_{T} = 2.15\cdot x^{2}+30\cdot x[/tex], where [tex]x[/tex] is the length of the box, measured in US dollars.

Answer:  9h+15 > 110

Step-by-step explanation: ed 2020

Answer:

22cm

Step-by-step explanation:

7+3=10

10+8=18

18+4=22

Answer:

(0°C × 9/5) + 32 = 32°F

Thats the formula!

Hope this helps!! :)

Answer:

1. Rotation

2. Reflection

3. Translation

Explanation:

1. Rotate figure A to the right it would match figure B

2. Imagine folding figure A down it would match figure B

3. Move figure A down and right and it would match figure B

Step-by-step explanation:

h(x) = f(g(x)), so h(x) is the same as g(x) substituted into f(x).

In this case, we can say f(x) = √x, and g(x) = 5x + 30.

f(g(x)) = √(5x + 30)

The answer is zero

-n+n=0 Always

Answer and explanation:

Please find explanation attached

Answer:

Step-by-step explanation: A    B

Lines can be named using any two points on the line or using a single cusive lowercase letter.

It is 28 feet far above form the ground.

1225=441+B^2

1225-441=B^2

784=B^2

√784=√B^2

28=B

B=28 feet

Answer:

8.2944444444444

Step-by-step explanation:

the mean is 8

please give me a brainlest!

Answer:

0.439 in.

Step-by-step explanation:

This is a subtraction problem.

3.154 in. - 2.715 in. = 0.439 in.

Answer:

.439

Step-by-step explanation:

udnsksjdjxjxjxnxndndjdb pee

Answer:

X=70

Step-by-step explanation:

Interior angles of parallel line sum up to be 180° so:

45+(2x-5)=180

45+2x=185

2x=140

x=70

Answer:

60%

Step-by-step explanation:

Answer:

60

Step-by-step explanation:

because 30/50 × 2 =60/100 =60%

Answer:

x = 95 degrees

Step-by-step explanation:

if you add the two angles that are right across each other, it should equal 180 degrees, so you subtract 180 and 85 to get 95 degrees

0.5 or 50% because there are 12 tiles and 6 are green. 6/12 probability simplifies to 1/2 = 0.5 = 50%

Answer:

y ≥ 135 or

y is at least 135

Step-by-step explanation:

Fifteen greater than y is at least 150

Which means: y is at least 135

Answer:

hi

Step-by-step explanation:

Answer:

you multiple what April has

Answer:

Yes, it is a function

Step-by-step explanation:

A function is where there is no two of the same domain.

The domain is the first coordinate.

Hope This Helps :)

Answer: function

Step-by-step explanation:

Answer:

1)[tex]h = \frac{3V}{\pi {r}^{2} }[/tex]

2)[tex]b = \frac{a}{2} + 2[/tex]

3)[tex]y = \frac{w - 3x}{7} [/tex]

Step-by-step explanation:

1)[tex]V= \frac{1}{3} \pi {r}^{2} h[/tex]

[tex] = > V = \frac{ \pi {r}^{2} h}{3} [/tex]

[tex] = > 3V = \pi {r}^{2} h[/tex]

[tex] = > h = \frac{3V}{\pi {r}^{2} } [/tex]

2)[tex]a=2(b-c)[/tex]

[tex] = > \frac{a}{2} = b - c[/tex]

[tex] = > b = \frac{a}{2} + c[/tex]

3)[tex]w=3x+7y[/tex]

[tex] = > w - 3x = 7y[/tex]

[tex] = > y = \frac{w - 3x}{7} [/tex]

Answer:i think the answer is A(x/.ly/

Step-by-step explanation:

Answer:

  D.  x - y > 0

Step-by-step explanation:

Given:

  x > y

Solution:

  x - y > y - y . . . . . subtract y from both sides

  x - y > 0 . . . . matches choice D

Answer:

10

Step-by-step explanation:

Because it is 90% and he shots 12 how much fat away is 90 for 100 it is 10

Answer:

the comparisms between pairs of scores

Step-by-step explanation:

The sign test can also called statistical test , this test is essential in the determination of group size. It also give comparisms between the given value and median of datas

It should be noted that The statistic used in the sign test measures the comparisms between pairs of scores

Answer:

z ≤ 6

Explanation:

z is less than or equal to: z ≤

z is less than or equal to six: z ≤ 6