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yaroslaw [1]
3 years ago
8

Tell weather the given value is a solution of the inequality

Mathematics
2 answers:
Iteru [2.4K]3 years ago
7 0
Hello there!

No, the number given is not a solution of the inequality

r - 3 ≤ 9

Let's start by adding 3 to both sides

r - 3 + 3 ≤ 9 + 3

r ≤ 12

I hope this helps. Good luck with your studies~
natta225 [31]3 years ago
4 0
Yes, 8 is a solution

r - 3 ≤ 9; r  = 8

plug in 8 to r

(8) - 3 ≤ 9
5 ≤ 9 (true)

hope this helps
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We can get this answer by first multiplying each side of the inequality by 7. That would get rid of the fraction. When one does that, the result is d + 28 \leq 0. That means that d \leq -28. In interval notation, which is the notation the problem is asking us, that would be (-infinity, -28], since d is all values less than -28 this includes infinity, but it also includes -28, so there is a ] around it. That means that the answer to this question is B, (-infinity, -28]. 
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In triangle ABC, c = 8, b = 6, and ∠C = 60°. sin∠B = _____
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Hello,

sin B/b=sin C/c
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A cone shaped paper water cup has a height of 12 cm and a radius of 6 cm. If the cup is filled with water to half its height, wh
monitta

Answer:

The portion of the volume of the cup that is filled with water is \frac{1}{8}

Step-by-step explanation:

step 1

Find the volume of the paper water cup

The volume of the cone is equal to

V=\frac{1}{3}\pi r^{2}h

we have

r=6\ cm

h=12\ cm

substitute

V=\frac{1}{3}\pi (6)^{2}(12)

V=144\pi\ cm^{3}

step 2

If the cup is filled with water to half its height, find out what portion of the volume of the cup is filled with water

Remember that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

In this problem the similar cone has half the height of the complete cone

so

The scale factor is equal to 1/2

therefore

The volume of the cup that is filled with water is equal to the volume of the complete cup by the scale factor elevated to the cube

V=(1/2)^{3}(144\pi)=(1/8)144\pi\ cm^{3}

therefore

The portion of the volume of the cup that is filled with water is

\frac{1}{8}

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djverab [1.8K]

Answer: See explanation

Step-by-step explanation:

Your question isn't really clear but let me help.

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From the above, we can see that Jake scored a higher percentage in the Maths test.

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