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2 years ago

Help me please please help help Please what is b

Mathematics

1 answer:

MAVERICK [17]2 years ago

3 0

Answer:

B=1

Step-by-step explanation:

Any variable without explination is =1

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HELP! PLEASE! I really need help with this question!

LekaFEV [45]

Answer:

They are at the same height at 1.13 seconds.

Step-by-step explanation:

Remark

The rockets are at the same height when f(x) = g(x) [see below] are the same. So you can equate them.

Givens

f(x) = - 16x^2 + 74x + 9

g(x) = -16x^2 + 82x I have changed this so you don't have 2 f(x)s

Solution

f(x) = g(x)
-16x^2 + 74x + 9 = -16x^2 + 82x Add: 16x^2 to both sides
-16x^2+16x^2+74x + 9 = -16x^2+16x^2 + 82x Combine terms
74x + 9 = 82x Subtract 74x from both sides
74x - 74x + 9 = 82x - 74x Combine
9 = 8x Divide by 8
9/8 = 8x/8
x = 1 1/8 Convert to decimal
x = 1.125
x = 1.13 [rounded]

6 0

2 years ago

What is the solution to the system of equations 2x-y=7 and y=2x+3

Yuri [45]

Make y the subject in both equations

$2x-y=7$

$-y=-2x+7$

$y=2x-7$

For the second equation

$y=2x+3$

The two equations are parallel because they have the same gradient or slope but different y intercepts.

This type of equations have no solution because they will never intersect.

$NO SOLUTION$

The correct answer is C

6 0

2 years ago

10 cm 8 cm 2.5 cm 8 cm 6 cm 2.5 cm what’s the surface area

DIA [1.3K]

Answer:

10+8+2.5+8+6+2.5=37 .

ok you are understand or bot

6 0

2 years ago

the circumference of the great circle of a sphere is 12 pi inches. Which of the following expressions can be used to approximate

andriy [413]

It would be A because with volume you would have your 12 to the 3rd power then multiply it by pie which is 3.14 then for sphere you would then multiply what ever you got after multiplying 12 to the 3rd power then by 3.14 to the 4/3

4 0

2 years ago

X+6=20 so what must X represent to get blank plus 6=20??

Gelneren [198K]

Answer:

Step-by-step explanation:

20-6=14

x=14

8 0

2 years ago

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