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Rainbow [258]
3 years ago
5

Multiply (2 – 71)(-1 + 47)

Mathematics
2 answers:
Serhud [2]3 years ago
6 0
(2-7i)(-1+4i)
2x-1=-2
2x4i= 8i
-7ix-1=7i
-7ix4i=-28i^2

so the answer is
-2+8i+7i+28i^2
=28i^2+15i-2

:)
igomit [66]3 years ago
6 0
Will this help? You can only Multiply the Same variables. I need to sleep now :)

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Identify the pair of figures in which the second figure is a translation of the first figure​
Nadya [2.5K]

Answer:

The first pair of figures would be a translation.

Step-by-step explanation:

A translation is a transformation that involves the shift or slide of a figure in the coordinate plane.  This movement will only be either horizontal, vertical or a combination of both.  The second and third set of figures given include not only a shift, but a reflection and rotation as well.  The only set of figures that has been moved horizontally and/or vertically is the first set.

8 0
3 years ago
Need help with factoring, x squared minus 8x +15
wariber [46]

Answer:

(x-3)(x-5)

Step-by-step explanation:

X^2-8x+15

Break the expression into groups

(x^2-3x)+(-5x+15)

Factor out x from x^2-3x

Factor out -5 from -5x+15: -5(x-3)

=x(x-3)-5(x-3)

Factor out common term x-3

=(x-3)(x-5)

Thanks for letting me help!!

7 0
3 years ago
I don't know what I did wrong. I tried it twice but it said it was wrong
Dafna1 [17]

Answer:

I used Desmos. Heres a picture of what its supposed to look like.

Step-by-step explanation:

5 0
2 years ago
The triangle has side lengths l,m, and n. Find the length of each side and the perimeter of the triangle. (PLEASE SHOW WORK)
erastovalidia [21]

The measure of the sides is 27, 23 and 16 and the perimeter is 56 respectively

<h3>The perimeter of a triangle</h3>

The triangle is a 2 dimensional shape that has 2 sides.

Given the following sides

l = m + n - 12

n = m - 7

m = l - 1/4n

l = m + 1/4n

Substitute

m + 1/4n = m + m - 7 - 12

m + 1/4(m-7) = 2m - 19

m + 1/4m - 7/4 = 2m - 19

-m + 1/4m = -19 + 7/4

-3/4m = -19(4)+7/4

-3/4m = -69/4

-3m = -69

m = 23

Hence the value of m from the given expression is 23

n = 23 - 7

n = 16

l = 23 + 16 -12

l = 39 - 12

l = 27

n = 23 - 7

n = 16

Hence the measure of the sides is 27, 23 and 16 respectively

Perimeter = 27+23+16

Perimeter = 56

Learn more on perimeter of triangle here: brainly.com/question/24382052

#SPJ1

3 0
1 year ago
If i have 7 quarters, 13 nickles, 23 pennies, 6 dimes and two dollar bills, how much money do i have
77julia77 [94]

Answer:

$5.23

Step-by-step explanation:

(7x.25)+13(.05)+.23+6(.10)+2.00=1.75+.65+.23+.60+2.00=$5.23

4 0
2 years ago
Read 2 more answers
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