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Eduardwww [97]
3 years ago
10

Serena does 10 minutes of endurance exercises

Mathematics
2 answers:
aivan3 [116]3 years ago
4 0
Okay but what’s the question
blagie [28]3 years ago
3 0

Answer:

Yes she does, what is the question?

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What is the unit rate for the ratio 280 student/8 buses​
liubo4ka [24]

Answer:

Step-by-step explanation:

280 students/8 buses= 35 students/ 1 bus

answer is A

5 0
3 years ago
21.39 + 9=x ok this seems easy but I'm stuck it is supposed to= 30.39 how do you get that answer
Elodia [21]

Answer:

30.39

Step-by-step explanation:

ok, think of it like 21+9. That =s 30 right? so then add the .39 and you get 30.39.

3 0
3 years ago
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The picture below shows a box sliding down a ramp:
Gennadij [26K]

Answer:

AC=15.1\ ft

Step-by-step explanation:

we know that

In the right triangle ABC

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substitute the values and solve for AC

sin(68\°)=\frac{14}{AC}

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4 0
3 years ago
Can someone please help me Factor 4x^2 - 81
Vsevolod [243]

Answer:

(2x-9)(2x+9)

Step-by-step explanation:

This is a difference of squares because it can be written as (2x)^2-9^2

The formula for factoring a difference of squares is a^2-b^2=(a-b)(a+b)

So replace a with 2x and b with 9 giving us

4x^2-81=(2x-9)(2x+9)

3 0
4 years ago
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Rewrite 40 1/4 as a decimal
Radda [10]
40.25 is 40 1/4 as a decimal
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3 years ago
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