Find the volume of the pyramid.

just olya [345]

Answer:

f(-10) = 6

Step-by-step explanation:

f(x) is simply just the name of the function. x will be your dependent variable that you'll use to plug into the equation.

Since they want you to find f(-10), you'll then plug -10 in where x was and solve.

f(-10) = -2((-10)+7)

f(-10) = -2(-3)

f(-10) = 6

6 0

3 years ago

Read 2 more answers

The mayor of a large city claims that the average net worth of families living in this city is at most $300,000. A random sample

Sergeu [11.5K]

Answer:

Check the explanation

Step-by-step explanation:

Below are the null and alternative Hypothesis,

Null Hypothesis, H0: μ = 300000

Alternative Hypothesis, Ha: μ < 300000

Test statistic,

z = (xbar - mu)/(sigma/sqrt(n))

z = (288000 - 300000)/(80000/sqrt(25))

z = -0.75

P-value Approach

P-value = 0.2266

As P-value >= 0.05, fail to reject null hypothesis.

8 0

3 years ago

9 Modelling The inside of a saucepan has diameter 20 cm and height 13 cm.

Mrrafil [7]

Answer:

The inside of a saucepan has a cylindrical shape so the capacity of a saucepan is: $V=\pi .(\frac{20}{2})^{2}.13=4084(cm^{3})=4.084(l)$

Step-by-step explanation:

8 0

3 years ago

If f(0) = -3x+4 and g(x) = 2, solve for the value of x for<br> which f(x) = g(x) is true.

miskamm [114]

Answer: x = 2/3

Step-by-step explanation:

The correct form of the equation is f(x) =-3x+4

Hi, to answer this question we have to join both equations:

f(x) = -3x+4

g(x) = 2

If both equations are equal:

f(x) = g(x)

So:

-3x+4 = 2

Solving for x:

Adding 3x to both sides:

-3x+4+3x =2+3x

4 =2+3x

Subtracting 2 from both sides:

4-2 =2+3x-2

2 =3x

2/3 =x

x =2/3

Feel free to ask for more if needed or if you did not understand something.

7 0

4 years ago

Two airplanes are carrying food and medical supplies to a country in need. One airplane is carrying 63 meals and 57 medical kits

Tju [1.3M]

Answer:

63m + 57k = 714 ____________ (1)

78m + 57k = 789 ____________(2)

The price of one meal is $5

Step-by-step explanation:

Let the price of one meal be m.

Let the price of one medical kit be k.

One airplane is carrying 63 meals and 57 medical kits and the total cost for those supplies on that airplane is $714.

This means that:

63m + 57k = 714 ____________ (1)

The other airplane is carrying 78 meals and 57 medical kits and the total cost for the supplies on that airplane is $789.

This means that:

78m + 57k = 789 ____________(2)

We now a system containing two linear equations that can be used to solve to problem:

63m + 57k = 714 ____________ (1)

78m + 57k = 789 ____________(2)

To find the price of one meal, we subtract equation (1) from (2) and simplify:

78m + 57k = 789

<u>- 63m + 57k = 714 </u>_

15m = 75

=> m = 75 / 15 = $5

The price of one meal is $5

6 0

3 years ago