All categories

4 years ago

If g ( x ) = 5 − 3x², find g(-2) =

Mathematics

2 answers:

Juli2301 [7.4K]4 years ago

5 0

Answer:

Step-by-step explanation:

g(-2) = 5 - 3(-2)^2 = 5 - 3(4) = 5 - 12 = -7

lianna [129]4 years ago

4 0

Answer:

g(-2)=-7

Step-by-step explanation:

start by replacing x with -2

g(-2)=5-3(-2)^2

-2^2 is 4 so

g(-2)=5-3(4)

g(-2)=5-12

g(-2)=-7

You might be interested in

Suppose j varies jointly with g and v, and j=2 when g=4 and v=3. <br> Find j when g=8 and v=9.

vladimir2022 [97]

Answer:

$j=12$

Step-by-step explanation:

we know that

In a join variation, If j varies jointly with respect to g and v, the equation will be of the form $j = kgv$

where k is a constant

step 1

Find the value of k

we have

j=2,g=4,v=3

substitute and solve for k

$2 = k(4)(3)$

$2 = 12k$

$k=\frac{1}{6}$

The equation is equal to

$j=\frac{1}{6}gv$

step 2

Find the value of j when g=8,v=9

substitute the values in the equation and solve for j

$j=\frac{1}{6}(8)(9)$

$j=12$

3 0

3 years ago

Líst the key features of the quadratic function graphed.

Oksi-84 [34.3K]

I think The answer is C

5 0

3 years ago

Find the surface area of the figure below:<br> ???

Ulleksa [173]

Answer:

85 ft^2

Step-by-step explanation:

The four sides of the pyramid: 5×6÷2×4=60

The bottom of the pyramid: 5×5=25

60+25=85 ft^2

6 0

3 years ago

Use properties to find the sum or product. <br> 93+(68+7)

erma4kov [3.2K]

$93+(68+7)=93+68+7\\use\ commutative\ property: a+b=b+a\\\\=93+7+68\\use\ associative\ property:a+(b+c)=(a+b)+c\\\\=(93+7)+68=100+68=\huge\boxed{168}$

6 0

3 years ago

Solve and find X. <br> Question says 5-x / 2 = 2x-7

poizon [28]

Answer:

x = 3.8

Step-by-step explanation:

The equation is (5 - x) / 2 = 2x - 7

Multiply both sides by 2:

5 - x = 4x - 14

Add 14 to both sides:

19 - x = 4x

Add x to both sides:

19 = 5x

Divide both sides by 5 to isolate x:

3.8 = x

Therefore, x = 3.8.

7 0

3 years ago

Read 2 more answers