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steposvetlana [31]

3 years ago

13

You and your friends decide to take a survey to try to convince mall managers to add a new store. You split up to survey parts A

, B, and C of the mall. If you survey part B what percent of the will you survey

2 answers:

7nadin3 [17]3 years ago

7 0

You would be doing 33.3333333333 Repeting % of the survey

svetlana [45]3 years ago

6 0

33.3 percent or 33 and 1/3

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GIVING BRAINLIEST!!!!!

Mashutka [201]

Answer:

D' : (2, 1)

E' : (2, 3)

A' : (5, 3)

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Evaluate the expression and write your answer in the form a + bi. 1) (2-6i)+(4+2i)2) (6+5i)(9-2i)3) 2/(3-9i)4) (3 − 5i)(7 − 2i)

laiz [17]

Answer:

Step-by-step explanation:

Given the following complex numbers, we are to expressed them in the form of a+bi where a is the real part and b is the imaginary part of the complex number.

1) (2-6i)+(4+2i)

open the parenthesis

= 2-6i+4+2i

collect like terms

= 2+4-6i+2i

= 6-4i

2) (6+5i)(9-2i)

= 6(9)-6(2i)+9(5i)-5i(2i)

= 54-12i+45i-10i²

= 54+33i-10i²

In complex number i² = -1

= 54+33i-10(-1)

= 54+33i+10

= 54+10+33i

= 64+33i

3) For the complex number 2/(3-9i), we will rationalize by multiplying by the conjugate of the denominator i.e 3+9i

= 2/3-9i*3+9i/3+9i

=2(3+9i)/(3-9i)(3+9i)

= 6+18i/9-27i+27i-81i²

= 6+18i/9-81(-1)

= 6+18i/9+81

= 6+18i/90

= 6/90 + 18i/90

= 1/15+1/5 i

4) For (3 − 5i)(7 − 2i)

open the parenthesis

= 3(7)-3(2i)-7(5i)-5i(-2i)

= 21-6i-35i+10i²

= 21-6i-35i+10(-1)

= 21-41i-10

= 11-41i

4 0

3 years ago

What is the solution to the system of equations below?

katen-ka-za [31]

$4x - y = - 5 \\ - 2x + y = 3$

Solve the second equation for y

$4x - y = - 5 \\ y = 3 + 2x$

Substitute the given value of y into the first equation

$4x - (3 + 2x) = - 5$

Solve the equation for x

$x = - 1$

Substitute the given value of x into the second equation

$y = 3 + 2( - 1)$

Solve the equation for y

$y = 1$

The possible solution of the system is the ordered pair (x,y)

$(x,y) = ( - 1, 1)$

7 0

3 years ago

How to write two and sixty three Hundredths in decimal form

Y_Kistochka [10]

2.063 or 2.63 I think

7 0

3 years ago

Determine if y=-2x-7 and -y=2x+13 are parallel, perpendicular, coincide or none of these

Goryan [66]

If you move the negative on the left side of the second equation over to the right side, then we can see that the equation is equivalent to $y={-2x} - 13$ .

Remember that an equation $y = mx + b$ represents a line with slope $m$ and y-intercept $b$ . Since both equations given have a slope of -2, but have different y-intercepts, they are parallel.

4 0

3 years ago