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Furkat [3]
3 years ago
9

Can someone help with these 3 questions, they are in the pictures!

Mathematics
1 answer:
Eduardwww [97]3 years ago
4 0

Question One
y = v - 1/2 g t^2   Subtract v from both sides.
y - v = - 1/2 gt^2  Multiply both sides by - 1
-(y - v) =  1/2gt^2 Remove the brackets.
v - y = 1/2 gt^2 Divide by g
(v - y)/g = 1/2 t^2 Multiply by 2 on both sides
2(v - y)/g = t^2 Move the 2 to the denominator on the left.
(v - y) / 0.5g = t^2 Take the square root of both sides.
sqrt [ (v - y) / 0.5g ] = t 

Answer: B or second one down <<<<<<<

Question Two  
There are no minuses in the answer. That eliminates 2 and 3
km^2 - c = n   Add c to both sides.
km^2 = c + n  divide both sides by k
m^2 = [c + n]/k  Take the square root of m^2
m = sqrt [(c + n)/k]

Answer A or the first one.

Problem 3
This is an estimation question. One value of x is <0 the other > 0
The two graphs cross when x = a bit over 2 and x < about - 5
The answer is C 2.1 and - 5.1 about.

Answer: 2.1 and -5.1 
Answer: C <<<<<<<<<

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Can someone help I will give the brainliest Plz help u will get 50 points
lara [203]

Answer:

B.) 6

2.) 70

3.) 56

Step-by-step explanation:

B.) 2(6) - 6

= 12 - 6

=6

2.) 7(2(3)+4)

=7(6+4)

=42+28

=70

3.) 10(3) + 4(3) + 14

= 30 + 12 + 14

= 42+14

=56

Have a wonderful day

:)

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3 years ago
HELP!!! Cheryl writes 7 fewer posts than Kevin on a social media site. Answer the questions to write an algebraic expression. Th
hammer [34]

Answer:

3

Step-by-step explanation:

cause if she writes 4 posts and kevin writes 21 than she only have 3 posts left that she have write

7 0
2 years ago
Can someone help me with this answer plsss
solniwko [45]

Answer: 44 ft

Step-by-step explanation:

if you add up the right square it adds up to 16 4+4+4+4 all sides are equal since its a square.

The left rectangle is

8+8=16

6+6=12

16+12=28

Now you add the square on the right to the square on the left which is

28+16= 44 ft

4 0
2 years ago
Can anybody give real answers please? Thanks.
Kazeer [188]
I believe it is 17.0, I hope this helps some
8 0
3 years ago
A recent study was conducted to see whether customers buy more books online or in store they surveyed 100 online customers 100 c
anzhelika [568]

Answer: 2819

Step-by-step explanation: 1xxmxm

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3 years ago
Read 2 more answers
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