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Lina20 [59]
3 years ago
6

What is the area of the circle shown? Use 3.14 for pi. Help me please I need to pass this test

Mathematics
1 answer:
bazaltina [42]3 years ago
7 0
A=3.14r^2
A=3.14 x 10^2
A=3.14x100
A=314
314cm is your answer
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Solve the following equation for the variable a 2a+b=c-4d
Natasha_Volkova [10]
2a+b=c-4d
a= c-4d-b/2
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3 years ago
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Write the exponential equation for this scenario. Mike buys a car for $45,000.00. The cars value depreciates (loses value) at a
gladu [14]

Answer:

A=45000(0.82)^t

Step-by-step explanation:

Given data

P= 45,000

rate= 18%

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A=P(1+r)^t

Since we are talking of depreciation

A=P(1-r)^t

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A=45000(1-0.18)^t\\\\A=45000(0.82)^t

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3 years ago
can someone help me!! Use algebraic rules of equations to predict the solution type to the system of equations. Include all of y
xz_007 [3.2K]

Answer:

x + y = 4 Equation 1

y = 2x -1 Equation 2

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Subtract

You will get

- 3x = -5

Divide by -3

-3x / -3 = - 5 /-3

x = 5/3

Substitute x into equation 1

x + y = 4

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y = 4 - 5/3

y = 7/3

x = 5/3 y = 7/3

Hope this helps.

4 0
3 years ago
Write a quadratic relation in the form y = ax2 + bx + c with roots 4 and - 3 and
pochemuha

Answer:

y =  2*x^2 - 2*x - 24

Step-by-step explanation:

If we have a quadratic function with roots a and b, we can write the equation for that function as:

y = f(x) = A*(x - a)*(x - b)

Where A is the leading coefficient.

In this case, we know that the roots are: 4 and -3

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Now we need to determine the value of A.

We also know that the graph of the function passes through the point (3, -12)

This means that:

f(3) = -12

Then:

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-12 = A*(-1)*(6)

-12 = A*(-6)

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2 = A

Then the equation is:

y = f(x) = 2*(x - 4)*(x + 3)

Now we need to write this in standard form, so we just need to expand the equation:

y = f(x) = 2*(x^2 + x*3 - x*4 - 4*3)

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Then the relation is:

y =  2*x^2 - 2*x - 24

4 0
3 years ago
What is Gama rays? ‎ ‎​
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Answer:

Step-by-step explanation:

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