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bogdanovich [222]
3 years ago
14

What is the benefit of using expressions in math?

Mathematics
2 answers:
atroni [7]3 years ago
8 0

Answer:

To help you understand the problem with out actually doing the work, you are just writing it out.

Step-by-step explanation:

Greeley [361]3 years ago
5 0

Answer:

The benefits of using expressions in math is to know what you are supposed to be using to solve your problem. Expression area good use too also for word problems!!

Step-by-step explanation:

<u><em>Plz mark Brainlist!!!</em></u>

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Help me solve please
Lisa [10]

Answer:

degree measure of arc AB = 120°

length of arc AB = 40π/3 in.

Step-by-step explanation:

arc AB has the same measure as its central angle.  So, arc AB = 120°

120 is 1/3 of 360, Therefore, the length of arc AB is 1/3 of the circumference.

Therefore, the

length of arc AB = 1/3πd =  1/3π(40) =  

                            = 40π/3 in.

5 0
2 years ago
[TIMED I NEED HELP]
marta [7]
ITS C - Factor 6 out of the variable terms

3 0
2 years ago
Read 2 more answers
Rajan needs 1 liter of 15% hydrochloric acid solution for an experiment. He checks his storage cabinet, but he only has a 5-lite
yarga [219]

Answer:

<em>Rajan must use </em><em>0.75</em><em> liters of 5% hydrochloric acid solution and </em><em>0.25</em><em> liters of 45% hydrochloric acid solution.</em>

Step-by-step explanation:

Let us assume that, x liters of the 5% hydrochloric acid and y liters of the 45% hydrochloric acid solutions are combined.

As Rajan need total of 1 liter of solution, so

x+y=1

i.e x=1-y --------------------1

As Rajan needs 5% hydrochloric acid and 45% hydrochloric acid to make a 1 liter batch of 15% hydrochloric acid, hence acid content of the mixture of two acids will be same as of the final one, so

0.05x+0.45y=1\times 0.15

i.e 5x+45y=15 -------------2

Putting value of x from equation 1 in equation 2,

\Rightarrow 5(1-y)+45y=15

\Rightarrow 5-5y+45y=15

\Rightarrow 5+40y=15

\Rightarrow 40y=15-5=10

\Rightarrow y=0.25

Putting the value of y in equation 1,

x=1-0.25=0.75

Therefore, Rajan must use 0.75 liters of 5% hydrochloric acid solution and 0.25 liters of 45% hydrochloric acid solution.

5 0
3 years ago
F(x) = 6x +1, find f (4c+2)<br> 24c - 13<br> O 18c + 1<br> 240 + 13<br> 240 + 1
postnew [5]

Answer:C 5a^2 +70a +240

Step-by-step explanation:

8 0
2 years ago
So I took a test from my teachers desk and took photos of the test questions. I am indeed cheating but I just want to know the a
romanna [79]

Answer:

THE CORRECT OPTION IS A) Δ ABC \simΔ BDC \simΔ ADB

Step-by-step explanation:

The first option is in correct order of triangle ,we can easily the their sides are proportionate . And having eqal angles.

8 0
3 years ago
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