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3 years ago

Please help me please brainliest

Mathematics

1 answer:

grin007 [14]3 years ago

6 0

Answer:19

Step-by-step explanation:perimeter is everything added since it’s a rectangle 10 on both length sides will be 20 so 58-20 is 38 divide that by 2 and that’s your answer.

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La suma de dos números es 50 y la diferencia es 22. ¿Cuáles son los números?

Basile [38]

Answer:

(3,2)

Step-by-step explanation:

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3 years ago

How to find the slope of parallel line to y=-6x+5

schepotkina [342]

For a line to be parallel, it must have the same slope as the first line so the slope of a parallel line would be -6.

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3 years ago

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Which relation below represents a one to one function

Scilla [17]

Answer:

<h2>Second table</h2>

Step-by-step explanation:

<em>One-to-one function is a function that preserves distinctness: it never maps distinct elements of its domain to the same element of its codomain. Every element of the function's domain is the image of at most one element of its domain.</em>

First table:

No. Because for x = 7.25 and x = 8.5 we have the same value of y = 11

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Yes. Because for all values of x we have different values of y.

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3 years ago

Triangle ABC was dilated and translated to form similar triangle A'B'C'.

kompoz [17]

we have that

$A(0,2)\ B(2,2)\ C(2,0)\\A'(-4,-1)\ B'(1,-1)\ C'(1,-6)$

we know that

Triangles ABC and A'B'C' are similar

Step $1$

Find the distance AB and distance A'B' with the formula

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

a) distance AB

$dAB=\sqrt{(2-2)^{2}+(2-0)^{2}}$

$dAB=\sqrt{(0)^{2}+(2)^{2}}$

$dAB=2\ units$

b) distance A'B'

$dA'B'=\sqrt{(-1+1)^{2}+(1+4)^{2}}$

$dA'B'=\sqrt{(0)^{2}+(5)^{2}}$

$dA'B'=\sqrt{25}\ units$

$dA'B'=5\ units$

Step $2$

Find the scale factor

$scale\ factor= \frac{measure\ A'B'}{measure\ AB} \\ \\ scale\ factor=\frac{5}{2} \\ \\ scale\ factor=2.5$

therefore

the answer is

the scale factor of the dilation is equal to $2.5$

8 0

3 years ago

Read 2 more answers

HELPPP!!! And explain please.

V125BC [204]

Answer:

After correcting error of Mia and solving the expression $0.38 \times 3 \div(-1/20)\times5\div(-8)$ we get 14.25

Step-by-step explanation:

The given expression is: $0.38 \times 3 \div(-1/20)\times5\div(-8)$

First I solve the expression, and then will point the error

$0.38 \times 3 \div(-1/20)\times5\div(-8)\\Converting \ \div \ sign \ into \ \times the \ term \ is \ inverted\\=0.38 \times 3 \times(-20)\times5\times(-1/8)\\=0.38\times 3 \times-20\times5\times-1/8\\=1.14 \times-20\times5\times-1/8\\=-22.8\times5\times-1/8\\=-114\times-1/8\\=\frac{-114}{-8}\\=14.25$

So, the mistake Mia did was when she inverted division sign into multiplication, she didn't invert the term next to division sign.

The step she did was: $0.38 \times 5 \times(1/20)\times3\times(-8)$

While the correct step was: $0.38 \times 3 \times(-20)\times5\times(-1/8)$

After correcting error of Mia and solving the expression $0.38 \times 3 \div(-1/20)\times5\div(-8)$ we get 14.25

3 0

2 years ago