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3 years ago

1. Given the functions a(x) = 3x − 12 and b(x) = x − 9, solve a[b(x)] and select the correct answer below.

1 answer:

8 0

I think the answer is A: a[b(x)] = 3x2-21 because if you make this whole expression into an equation then solve x, you will get answer A. Hope this helps! :)

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20 divided by c write an algebraic expression for the word expression

umka21 [38]

Step-by-step explanation:

The algebraic expression is

----

20/c

6 0

3 years ago

The two shorter sides of a right triangle have lengths of 9.88 meters and 2.69 meters. What is the area of the triangle?

GalinKa [24]

Answer:

13.29 square meters

Step-by-step explanation:

The two shorter sides of a right triangle have lengths of 9.88 meters and 2.69 meters

Two shorter sides are the base and the height of the right angle triangle

Area of the triangle is 1/2 times base times height

$area= \frac{1}{2} \cdot 9.88 \cdot 2.69$

Area of the triangle is 13.2886

13.29 square meters

8 0

3 years ago

Which ordered pair is a solution to the system of equations? Use any method to solve. 4x-y=5, x+y=10

fomenos

Answer:

The ordered pair ( 5, 15) is a solution to the system of given equations.

Step-by-step explanation:

Consider the given equations,

4x-y=5 .......(1)

x+y=10 .......(2)

We have to find the ordered pair which is a solution to the system of given equations.

We solve the system by elimination method,

Adding both equation , to eliminate y ,

⇒ 4x - y +( x+y ) = 5+ 10

⇒ 4x - y + x + y = 15

⇒ 5x = 15

⇒ x = 5

Put x = 5 in equation (1) , and solve for y,

We get,

4x - y = 5 ⇒ 4(5) - y = 5 ⇒ y = 20 - 5 ⇒ y = 15

Thus, the ordered pair ( 5, 15) is a solution to the system of given equations.

8 0

3 years ago

Read 2 more answers

X over 5 equals 15 what does x equal

Anna007 [38]

X/5= 15
So we gotta get x alone sooo
Since it’s division we do reverse and do multiplication for the answer
So 15 times 5 is 75
X = 75

8 0

3 years ago

If sin theta=-square root 3 over 2 and pie

choli [55]

Answer:cos theta = -(1)/2; tan theta = sqrt(3)

cos theta = -(1)/2; tan theta = -1

cos theta = (sqrt(3))/4; tan theta = -2

cos theta = 1/2; tan theta = sqrt(3)

cos theta = 4/3

Step-by-step explanation:

7 0

3 years ago