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s344n2d4d5 [400]
3 years ago
9

Help for all, will mark brainliest!!!!! :)

Mathematics
1 answer:
Nat2105 [25]3 years ago
7 0

Answer:

Number 4: Using Pythagoras Theorem,

\sqrt{30^2+40^2} =50

Number 5:

\sqrt{41^2-40^2}=9

3:

\sqrt{11^2+60^2} =61 It is a right triangle

4:

\sqrt{9^2+37^2} =38.09 Not a right triangle

For the last one:

\sqrt{(\sqrt{20^2+6^2})^2+6^2} =2\sqrt{118}

Rounded down (because the answer needs to be a whole number) is 21

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Please help! :):):);)
AnnZ [28]

Answer:

So 60% of this unknown number is 28

Let this unknown number be n

60/100 × n = 28

0.60 × n = 28

n = 28/0.6

n = 46.7

To the nearest wholw number is 47

So there are 47 votes in total

6 0
3 years ago
There are 8 dinner rolls in a package.
masha68 [24]

Answer: 25 packages

Step-by-step explanation: 100x2=200 / 200/8=25

5 0
3 years ago
Read 2 more answers
a sewing club is making a quilt consisting of 25 squares with each side measuring 30cm.if the quilt has 5 rows and 5 columns .de
LenKa [72]
To find the length of the sides of the quilt multiply the length of each square by how many squares make up that side
30 cm · 5 squares = 150 cm  (this is for both length and width because this quilt is a square)
For a square, perimeter=4·side, or all sides added together
p=4·150cm
p=600cm
Area of a square is length · width
A=150 cm·150 cm
A=22,500 cm²
3 0
3 years ago
Help please on this math problem: The prices of backpacks at a store are 22, 16, 39, 35, 19, 34, 20, and 26. Find the Mean Absol
Ivanshal [37]
Answer: 7.22
(note: this is a result after rounding. The result before rounding was 7.21875)

========================================================

Explanation:

Given Set of Values = {22, 16, 39, 35, 19, 34, 20, 26}

Add up the values: 22+16+39+35+19+34+20+26 = 211
Divide that sum by 8 as there are 8 values: 211/8 = 26.375

The mean is 26.375

Now subtract the mean from each data value. Apply the absolute value to ensure the difference is never negative

|22 - 26.375| = 4.375
|16 - 26.375| = 10.375
|39 - 26.375| = 12.625
|35 - 26.375| = 8.625
|19 - 26.375| = 7.375
|34 - 26.375| = 7.625
|20 - 26.375| = 6.375
|26 - 26.375| = 0.375

Add up those results
4.375+10.375+12.625+8.625+7.375+7.625+6.375+0.375 = 57.75
Then divide by 8 
57.75/8 = 7.21875

The mean absolute deviation of the prices is 7.21875
Rounded to two decimal places, it is 7.22
Since we're talking about money, it makes sense to round to the nearest penny.

4 0
3 years ago
Solve for 3.3x-4=-13.9
evablogger [386]

Answer: Simple and best practice solution for 3.3x-4=-13.9 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

Step-by-step explanation: Idk how to explain I’m just smart so I can figure it out

4 0
3 years ago
Read 2 more answers
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