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3 years ago

How do you do this equation? 9x+(y)i-5=-12+4

1 answer:

3 0

$9x+yi-5=-12+4\\\\(9x-5)+yi=-13\iff9x-5=-13\ and\ y=0\\\\9x=-13+5\\9x=-8\\x=-\frac{8}{9}\\\\Answer:x=-\frac{8}{9}\ and\ y=0.$

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Bradley is trying to find a missing factor. A product of that factor has a 3 in the ones digit. Is the missing factor even or od

iren [92.7K]

That factor is odd because if the last number is odd the whole number is odd

3 0

3 years ago

Read 2 more answers

Arie has 46$ in his account and is saving 8.50 each week Olga has 14$ in her savings account and is saving 12.50 each week after

victus00 [196]

Answer:

After 8 weeks Arie and Olga will have the same amount in their accounts

Step-by-step explanation:

Assume that Arie and Olga will have the same amount in their accounts after w weeks

∵ Arie has $46 in his account

∵ He is saving $8.50 each week

∵ He will do that for w weeks

- To find his amount after w weeks add 46 to the product of

w and 8.50

∴ Arie's amount = 8.50 w + 46

∵ Olga has $14 in her savings account

∵ She is saving $12.50 each week

∵ She will do that for w weeks

- To find her amount after w weeks add 14 to the product of

w and 12.50

∴ Olga's amount = 12.50 w + 14

∵ They will have the same amount in w weeks

- Equate their amounts

∴ 12.50 w + 14 = 8.50 w + 46

- Subtract 14 from both sides

∴ 12.50 w = 8.50 w + 32

- Subtract 8.50 w from both sides

∴ 4 w = 32

- Divide both sides by 4

∴ w = 8

After 8 weeks Arie and Olga will have the same amount in their accounts

4 0

3 years ago

This set of points are connected to form a line segment. What is its length? A = (3,5) and B = (3,6) *

Colt1911 [192]

Answer:

d(A,B)=1

Step-by-step explanation:

To find distance between points A(xA,yA) and B(xB,yB), we use formula:

d(A,B)=(xB−xA)2+(yB−yA)2−−−−−−−−−−−−−−−−−−−√

In this example: xA=3 , yA=5 , xB=3 and yB=6 so:

d(A,B)d(A,B)d(A,B)=(3−3)2+(6−5)2−−−−−−−−−−−−−−−√=0+1−−−−√=1

5 0

3 years ago

Read 2 more answers

A twelve-sided die with sides labeled through will be rolled once. Each number is equally likely to be rolled. What is the proba

FromTheMoon [43]

Complete Question:

A twelve-sided die with sides labeled 1 through 12 will be rolled once. Each number is equally likely to be rolled, what is the probability of rolling a number greater than 10?

Answer:

$P(T) = \frac{1}{6}$

Step-by-step explanation:

Given

Number of Sides = 12

Required

Probability of obtaining a side greater than 10

We start by listing out the sample space;

$S = \{1,2,3,4,5,6,7,8,9,10,11,12\}$

$n(S) = 12$

Next, we list out digits greater than 10; Represent this with T

$T = \{11,12\}$

$n(T) = 2$

Probability of T is calculated as follows;

$P(T) = \frac{n(T)}{n(S)}$

$P(T) = \frac{2}{12}$

Divide the numerator and denominator by 2

$P(T) = \frac{1}{6}$

Hence, the required probability is  $\frac{1}{6}$ 

8 0

3 years ago

a rectangle has a width that is 1/2 its length the perimeter of this rectangle is 42 inches what is the width of the rectangle..

irakobra [83]

Answer:

w = 7 inches

Step-by-step explanation:

length = n

width = n/2

Perimeter = 2n + 2(n/2)

42 = 2n + n

42 = 3n

n = 14

width = 14/2 = 7

3 0

3 years ago