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Aneli [31]
2 years ago
12

I need help and please explain to me how you got the answer

Mathematics
1 answer:
maksim [4K]2 years ago
7 0

Answer:

B

Explanation:

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Last year there were 20 girls on the volleyball team. This year the number of girls decreased by 10%. How many girls are on the
tankabanditka [31]

Answer:

22

Step-by-step explanation:

10% of 20 is 2, so when you add the previous amount and the percentage you end up with 22

5 0
2 years ago
Read 2 more answers
Suppose an astronaut can jump vertically with an initial velocity of 5 m/s. The time that it takes him to touch the ground is gi
Vitek1552 [10]

Answer:

t=1.020s

Step-by-step explanation:

Given Equation:

5t-0.5at^{2} =0

Actually the given equation is the 2nd equation of motion

i.e. S =V_{i} t+0.5at^{2}

where S=0 because the astronaut jumps on the earth

and initial velocity V_{i}=5

to find time t, put the given value of a=9.8m/s^{2} in the given equation, we get

5t-0.5(9.8)t^{2} =0\\t(5-4.9t)=0\\ \ dividing\ both\ sides\ by\ t\ we \ get\\ 5-4.9t=0\\4.9t=5\\t=\frac{5}{4.9}\\ t=1.020s

it will take t=1.020s to reach the ground if he jumps on the Earth

3 0
3 years ago
Help please this is due soon! I need you to show the work as well <3 pic below
Dafna1 [17]

Answer:

perimeter: 4x+2 area: x^2+x

Step-by-step explanation:

for perimeter, you add x+x+x+x+1+1, which is 4x+2

for area, you multiply x*x+1, which would be x^2+x

7 0
3 years ago
If the degree of a polynomial function is even and the leading coefficient is negative, then the end behavior of the function is
-Dominant- [34]

Answer:

Its the last option.

Step-by-step explanation:

The function will  rise from the left and descend to the right.

f(x) ---> -∝ as x ---> -∝ and f(x) ---> -∝ as x ---> ∝

4 0
2 years ago
The nth term of a sequence is 3n2/2
AlekseyPX

Answer:17th term I think

Step-by-step explanation:

6 0
3 years ago
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