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3 years ago

Question 1 (Multiple Choice Worth 1 points)

1 answer:

tatiyna3 years ago

3 0

Let f(x) = x^2 - 3x - 7. Find f(-3).

-7

Let f(x) = x2 - 16. Find f-1(x).

1 over quantity of x squared minus 16

Let f(x) = 2x - 6 Solve f-1(x) when x = 2.

4

Let f(x) = 2x + 2. Solve f-1(x) when x = 4.

1

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Wht is -3(2x-1)+8=15

Svetllana [295]

Answer:

x=- $\frac{2}{3}$

Step-by-step explanation:

subtract -3(2x-1)+8=15

-8 -8

_____________

-3(2x-1)=7

divide

$\frac{-3(2x-1)}{-3} =\frac{7}{3}$

then simplify

2x-1= $\frac{7}{3}$

add both sides

2x-1+1= $\frac{7}{3}$ +1

simplify again

2x-1+1= $\frac{7}{3}$ +1=2x= $-\frac{4}{3}$

divide by 2

2x= $-\frac{4}{3}$

-2 -2

_________

2x÷2=1

$-\frac{4}{6}divided by 2$

x=- $\frac{2}{3}$

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3 years ago

What is the area of a trapezoid with 5m and bases 8 m and 1 m ?

larisa86 [58]

Answer:

the area is 6.5

Step-by-step explanation:

4 0

3 years ago

Evaluate the expression 4 1/2 ÷ 3/4

Darya [45]

Answer: 6

Step-by-step explanation:

7 0

2 years ago

Which equation represents an exponential function that passes through the point (2, 80)?

Lena [83]

The function f(x) = 5(x)⁴, and f(x) = 5(4)ˣ represents the function that passes through the point (2, 80) option second and fourth are correct.

<h3>What is an exponential function?</h3>

It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent $\rm y = a^x$

where a is a constant and a>1

We have; an exponential function that passes through the point (2, 80).

f(x) = 4(x)⁵

Plug (2, 80) in the abovew function:

f(2) = 4(2)⁵ = 128 (false)

f(x) = 5(x)⁴

Plug (2, 80) in the abovew function:

f(2) = 5(2)⁴ = 80 (true)

f(x) = 4(5)ˣ

f(2) = 4(5)² = 100 (false)

f(x) = 5(4)ˣ

f(2) = 5(4)² = 80 (true)

Thus, the function f(x) = 5(x)⁴, and f(x) = 5(4)ˣ represents the function that passes through the point (2, 80) option second and fourth are correct.

Learn more about the exponential function here:

brainly.com/question/11487261

#SPJ1

4 0

2 years ago

Which shows the expression below in simplified form?

statuscvo [17]

Answer:

B. 9x10^4

Step-by-step explanation:

$\frac{4.5 \times {10}^{8} }{5 \times {10}^{3} } \\ = 0.9 \times {10}^{8 - 3} \\ = 0.9 \times {10}^{5} \\ = 9 \times {10}^{4}$

5 0

3 years ago