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LenaWriter [7]
4 years ago
12

What is the exact distance between

-3)" align="absmiddle" class="latex-formula"> and (-1, 8)?
Mathematics
1 answer:
Tamiku [17]4 years ago
3 0

Answer:

Step-by-step explanation:

d^2 = (x2 - x1)^2 + (y2 - y1)^2

x1 = 9

x2 = -1

y1 = -3

y2 = 8

d^2 = (-1 -9)^2 + (8 - - 3)^2

d^2 = (-10)^2 + 11^2

d^2 = 100 + 121^2

d^2 = 221

221 is not prime, it is 13 * 17 which doesn't factor down any further.

So

d = sqrt(221)

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%of 25 is 14.<br><br> what percent of 20 is 11?<br><br> 15 is
ikadub [295]
The first question:

'is' in mathematics means equal
'of' in mathematics means multiplication

\frac{x}{100} \times 25 = 14\\\\\frac{x}{4} = 14\\\\\boxed{\bf{x=56}}

56% of 25 is 14.

And the second question:

'is' in mathematics means equal
'of' in mathematics means multiplication

\frac{x}{100} \times 20 = 11\\\\\frac{x}{5} = 11\\\\\boxed{\bf{x = 55}}

55% of 20 is 11<span>.</span>
4 0
4 years ago
Perform the indicated operation. 5/4 + 7/9
Ede4ka [16]

Answer:

12/13

Step-by-step explanation:

5+7=12

4+9=13

so the answer is 12/13. I hope that helps

8 0
4 years ago
Read 2 more answers
A triangle is dilated with the center of dilation at point U. Point E is a vertex of the triangle and point E ′ E' is the corres
Snezhnost [94]

Answer: scale\ factor=5

Step-by-step explanation:

By definition, a Dilation is a transformation in which the image has the same shape as the pre-image but  size changes.

The center of dilation is a fixed point in the plane, and the scale factor is the ratio of the corresponding sides of the image to the pre-image.

Based on the information provided in the exercise, you know that:

UE = 2\ cm\\\\U'E'=10\ cm

Thererefore, you can determine that the scale factor is:

scale\ factor=\frac{10\ cm}{2\ cm}\\\\scale\ factor=5

4 0
4 years ago
Someone please help me
Kamila [148]

This is not a function. The input 7 in set A maps to outputs -1 and -3 at the same time in set B, which is why we don't have a function.

For a function to be possible, each input must map to exactly one output only.

4 0
4 years ago
What is 1,935,825 in scientific notation ?
MaRussiya [10]

Answer:

Scientific Notation:

1.935825 × 106

E-Notation:

1.935825e6

Engineering Notation:

1.935825 × 106

Real Number:

1935825

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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