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laiz [17]
3 years ago
10

Can someone help me please

Mathematics
1 answer:
Soloha48 [4]3 years ago
5 0

Answer:

its the 1st answer choice/A

Step-by-step explanation:

there is 10 people who are 25-29, and 5 people 20-24, so 10+5=15 so 15 people are younger than 30

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BRAINLIST FOR FIRST PERSON THAT SHOWS THEIR WORK AND THE RIGHT ANSWER!!!!! When Daria gets to school, the temperature is 5.7°F.
viva [34]

Here goes the answer. Hope it helps.

3 0
3 years ago
Do line segments with the given lengths form a right triangle? State whether the line segments with the given lengths form a rig
Dvinal [7]

Given:

19, 180, 181

To be able to determine if the given lengths form a right triangle, the following condition must be met:

\text{ a}^2\text{ + }b^2=c^2

Let's check.

a.) At a = 19, b = 180, c = 181

\begin{gathered} \text{ a}^2\text{ + }b^2=c^2 \\ (19)^2+(180)^2=(181)^2 \\ 361\text{ + 32,400 = 32,761} \\ 32,761\text{ = 32,761} \end{gathered}

Therefore, the given lengths could form a right triangle at a = 19, b = 180 and c = 181.

The answer is yes.

It just happened to be that we got the right answer on the first try, you must also examine at a = 180, b = 181, c = 19 and a = 181, b = 19, c = 180 if the first try didn't meet the right condition.

If you failed to get, then the given lengths could not form a right triangle. The answer would be no.

4 0
1 year ago
Victoria completed 1/8 of her test in 2/5 of an hour if it koreas rate stayed the same how much of her test was finished in 1 ho
dangina [55]

Answer:

<h2>31.25%  or 1/16 of her test</h2>

Step-by-step explanation:

Step one:

given

let the total amount of her test be x

we are told that she complete 1/8x  test in 2/5 of  an hour

hence she completed 1/8x in 0.4 hours

let us find the rate at which she completes are test

rate= 1/8x/0.4

convert the numerator to decimal number for easy computation

rate= 0.125x/0.4

rate=0.3125x per hour

Step two:

Hence 1 hour she can finish 0.3125x *1

=0.3125x

She can finish 31.25 % of her test in 1 hour

or 1/16 of her test

7 0
3 years ago
Find the equation of the line that passes through the points (-2, 1) and (3, 3). Write your answer in the form y = mx + b.
Ainat [17]
Slop: m=y2-y1/x2-x1
m=3-1/3-(-2)
m=2/5
Substitute (3,3) into the formula y=mx+b
3= 2/5•3+b
9/5=b
So y=2/5x+ 9/5
5 0
4 years ago
I need help solving this equation: Solve x^2-4+1=0
Mamont248 [21]

Answer:

X=3/2 or 1.732

Step-by-step explanation:

X^2-4+1=0

Combine like terms

-4 + 1 = -3

X^2-3=0

add 3 to both sides

X^2= 3

X= 3/2

4 0
3 years ago
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