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Allisa [31]
2 years ago
6

Please help! It’s already late! Help asap!

Mathematics
2 answers:
ser-zykov [4K]2 years ago
6 0

Answer:

D

explain:

attachment

BARSIC [14]2 years ago
3 0

Answer:

The answer is x = 6.

Step-by-step explanation:

The middle line is 2, and the leg is \sqrt{13}. We can use the pythagorean theorem and use \sqrt{13} as the hypotenuse and have 2 be a leg.

a^{2} + b^{2} = c^{2} \\\\2^{2} + b^{2} = \sqrt{13}^{2}

4 + b^{2} = 13\\\\b^{2} = 9\\b = 3

Since we know one of the bottom parts of x is 3, and the other triangle is the same as the on we solve, we do 3 + 3 which is 6. 6 is equal to x.

#teamtrees #WAP (Water And Plant)

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The number 2400 is first increased by 30%.The value obtained is next decreased by 20%.Find the final number
kvasek [131]

<em>2400 is increased by 30%.</em>

so,

2400 + (30/100 * 2400)

2400 + (30 * 24)

2400 + 720

3120

<em>this number is decreased by 20%.</em>

so,

3120 - (20/100 * 3120)

3120 - (2 * 312)

3120 - 624

2496

therefore, the final number will be 2496.

3 0
3 years ago
What is the perimeter of the figure?
Allisa [31]

Answer:

Answer is D, all you do is add the numbers

7 0
2 years ago
NEED ANSWER QUICK PLSSSS​
Gelneren [198K]

Answer:

CCC

Step-by-step explanation:

C

7 0
2 years ago
If the cost of a 2.5 meter cloth is $30.5. What will be the cost of 22 meters ?
alisha [4.7K]

Answer:

268.40

Step-by-step explanation:

We can write a ratio to solve

2.5 meters        22 meters

-----------------  = --------------

30.5 dollars       x dollars

Using cross products

2.5 * x = 30.5 * 22

2.5x =671

Divide each side by 2.5

2.5x / 2.5 = 671/2.5

x =268.4

8 0
2 years ago
Nine voltage measurements in a circuit have produced the following values: 12.09, 12.05, 11.94, 11.99, 12.12, 12.05, 12.02, 11.9
Debora [2.8K]

Answer:

we can not reject any value

Step-by-step explanation: From data we can test the highest and the lowest value to evaluate if one of these values are out of certain confidence Interval

If we established CI = 95 % then  α = 5 % and  α/2 = 0,025

From data we find the mean of the values

μ₀  = 12,03   and σ = 0,07

From z table we find z score for 0,025 is  z(c) = ± 1,96

So limits of our CI are:

12,03 + 1,96 =  13,99

12,03 - 1,96 = 10,07

And all our values are within  ( 10,07 , 13,99)

So we can not reject any value

4 0
3 years ago
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