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marysya [2.9K]
3 years ago
9

I need to simplify the circled questions and explain how I got my answers.

Mathematics
2 answers:
artcher [175]3 years ago
8 0
7) 2^3 / 2(3+5)
8/2(5)
4/5
.8

10) 8(4-1) x 4
8(3) x 4
24x4
96

12) 9^2 (1+1) + 7
81 (2) + 7
162+7
169

14) 8^2 -1 +4 /2
64-1+4/2
67/2
33.5

18) 11^2 + 2^3 -3 x 4
121 + 8 - 3 x 4
129 -12
117
postnew [5]3 years ago
6 0

#7 2^3÷2(3+2) 2^2×(3+2) 4×5 20

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What is the side length of<br> Cube with a volume of 64 u3?
PilotLPTM [1.2K]

a≈4

Using the formula

V=a3

Solving for a  

a=V⅓=64⅓≈4

6 0
3 years ago
If Stu is similar to XYZ the sides of STUbmust be congruent to the corresponding sides XYZ
oksano4ka [1.4K]

This is a particular case, but it is not necessarily true. If triangles STU and XYZ are similar, the corresponding sides are in the same proportion. So, there exists a number k \in \mathbb{R} such that

ST = kXY,\quad TU=kYZ,\quad SU=kXZ

So, if k=1, the corresponding sides are actually congruent, but it can be any other number. For example, if k=2, triangle XYZ is exactly twice as large as triangle STU, but they are still similar.

8 0
4 years ago
Read 2 more answers
1) Sunshine Insurance offers life insurance to men age 70. Mortality tables indicate the likelihood of a 70-year-old man survivi
jarptica [38.1K]

Answer:

60.6%

0.0003%

Step-by-step explanation:

Because they are independent events, the final probability will be the multiplication of each event, that is, 0.92 multiplied 6 times, in other words:

 0.92 ^ 6 = 0.606

that is to say that the probability that the 6 men survive is 60.6%

Now, to calculate that at least one survives, it means that 5 died, the probability that one dies is 1 - 0.92 = 0.08, and how they are 5 would be:

0.08 ^ 5 = 0.0000032768

Then multiplied by 0.92, which is that one survives, we are left with:

0.0000032768 * 0.92 = 0.00000301465

Which means that the probability of one surviving is 0.0003%, it is a very low probability because the probability of surviving is really high.

3 0
3 years ago
Yes another question help please lol ??
erastova [34]
5/8=6/y
y=6(8/5)=9.6
Okay
7 0
3 years ago
Read 2 more answers
1. Simplify the expression. Show your work.<br> 22 + (32 – 42)
KonstantinChe [14]
22 + (-10)

22 - 10

-12 is the answer
3 0
4 years ago
Read 2 more answers
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