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MAXImum [283]
3 years ago
9

20 points please help - geomtry

Mathematics
1 answer:
charle [14.2K]3 years ago
7 0

Answer:

x = 7 units

Step-by-step explanation:

Write and solve an equation of ratios, as follows:

   5 cm                 3 cm

------------------ = ------------------------

(40 + 5) cm      (3 + 2x + 10) cm

This simplifies to:

  5             3

-------- = -----------

  45       2x + 13

Solve for x.  Cross-multiplying, we get:

10x + 65 = 135, or x = 7

So x = 7 units.

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Someone help me please pls pls pls ​
katrin2010 [14]

Answer:

There is 9 on each pace and 3 on a row

Step-by-step explanation:

54/6=9

if there is 9 on each side and the same on each side, then it has to be 3 in each row and column. Also, this is a Rubix cube

Please give me brainliest, it really helps! :)

Have a good day!

7 0
3 years ago
He finds 10 fewer grasshoppers than crickets. He finds 5 fewer crickets than ladybugs. If Jeff finds 5 rasshoppers, how many lad
Iteru [2.4K]
He finds 20 jeffys in bunny siuits and 1 bed to.sleep.
4 0
3 years ago
Read 2 more answers
Write a problem that involeves finding the unknown measure of a side of a rectangle. Include the solution
viktelen [127]
2X +2(15)=46
What is X?

2X+30=46
-30     -30
________
2X=16
X=8
6 0
3 years ago
Is the answer B or C
klio [65]

We will calculate it like this, We will make a right angle triangle by adding one new point called O for example, and O is located right under the point C, and on the right side of point D, so the coordinated for this point are O (8, -2). From there, length CD is calculated using the Pythagorean theorem, because we know that the CO = 4 and DO = 4, so:

CD^2 = CO^2 + DO^2

CD^2 = 4^2 + 4^2

DC^2 = 16 + 16

DC^2 = 32

DC = square root of 32 = square root of 16 * square root of 2

DC = 4 * square root of 2

The correct answer is B. 4*square root of 2.

6 0
3 years ago
About 10% of the population has a particular genetic mutation. 700 people are randomly selected. Find the standard deviation for
Oduvanchick [21]

Answer: 7.94

Step-by-step explanation:

The formula to calculate the standard deviation for binomial distribution :-

\sigma=\sqrt{np(1-p)}, where n is the number total of trials and p is the probability of getting success in each trial.

Given : The probability of the population has a particular genetic mutation=0.1

If 700 people are randomly selected, then the standard deviation for the number of people with the genetic mutation in such groups of 700 will be :-

\sigma=\sqrt{700\times0.1(1-0.1)}\\\\\Rightarrow\sigma=\sqrt{63}\\\\\Rightarrow\sigma=7.9372539331\approx7.94

Hence, the standard deviation for the number of people with the genetic mutation in such groups of 700 = 7.94

8 0
3 years ago
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