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My name is Ann [436]
3 years ago
8

Estimate the following sum by rounding each number to the nearest ten.

Mathematics
2 answers:
Stels [109]3 years ago
8 0

Answer:

180

Step-by-step explanation:

130+30+20=18

Lina20 [59]3 years ago
6 0

Answer:

180

Step-by-step explanation:

129.5 --> 130

34.62 --> 30

19.1 --> 20

130+30+20 = 180

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A circular trampoline has a radius of 8 feet. Wendy wants to buy a cover for the trampoline. What will be the area of the cover
padilas [110]

Answer:

Option (3)

Step-by-step explanation:

Area of a circle is given by the formula,

Area = πr²

Here, r = radius of the circle

Since, radius of the circular trampoline = 8 feet

Area of the cover required for the circular trampoline = π(8)²

                                                                                         = 64π square feet

Therefore, Option (3) will be the answer.

3 0
3 years ago
Plz answer the below question u will be awarded brainliest and will get points too..
brilliants [131]

Answer:

x=0.6241

Step-by-step explanation:

Square both sides and end up with

75.24+x=75.8641

isolate x

x=75.8641 - 75.24

x=0.6241

6 0
3 years ago
Assuming a normal distribution, families spends an average of $500 on their monthly cell phone bills with a standard deviation o
lara [203]
The probability is 0.69.

We find the z-scores that correspond with each end of the range we're looking for.  To find a z-score, we use the formula:
z=\frac{X-\mu}{\sigma}
\\
\\=\frac{350-500}{75}=\frac{-150}{75}=-2

z=\frac{400-500}{75}=\frac{-100}{75}=-1.33

Using a z-table (http://www.z-table.com) we see that the area under the curve left of the score 350 would be 0.228.  The area under the curve left of the score 400 would be 0.918.  To find just the range between 350 and 400, we subtract the area left of 350 from the area left of 400; this will give us just from 350 to 400:

0.918-0.228 = 0.69.
8 0
3 years ago
Simplify<br> 2×7p-3×4q+15p/3-24q/6
Lelechka [254]

Answer:

ans=3

Step-by-step explanation:

5 0
3 years ago
Z=m-x solve for x.<br>I'm really confused!! Help
Greeley [361]
<span>Z=m-x
Add x to both sides
z + x=m
Subtract z from both sides so that the only thing remaining on the left side is the variable x.
Final Answer: x= m - z</span>
5 0
3 years ago
Read 2 more answers
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