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3 years ago

15

Help please! due today!

1 answer:

miss Akunina [59]3 years ago

3 0

If ,

$\tt{z=-3+5i }$ ⠀

so,

$\overline{z}$ = $\tt{ -3-5i }$

Because,

<em>In</em><em> </em>the argand plane , $\overline{z}$ is the reflection of z in x-axis

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X over 85 = 72 over 100

gayaneshka [121]

Answer:

X=61.2

Step-by-step explanation:

x/85 = 72/100

x*100/8500 = 6120/8500

x*100 must equal 6120 therefore x must be 61.2 because 61.2 * 100 is 6120

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3 years ago

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Write a compound inequality that the graph could represent.

Dmitry_Shevchenko [17]

A solid dot on the graph of an inequality indicates that the number is contained within the inequality, so yo should use $\leq$ or $\geq$ to represent that situation, whereas a white dot indicates that the number is not contained within the inequality.

Our graph is telling us that $x$ is greater or equal than -1, and also $x$ is less than 3. So our inequality will be:

$-1 \leq x \leq 3$

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3 years ago

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If a measured distance of 5 inches on a map respresents an actual distance of 3 miles, what is the fractional scale of the map?

OverLord2011 [107]

5 inches: 3 miles
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3 years ago

A function f() is graphed on the coordinate plane.

Mkey [24]

Answer:

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Step-by-step explanation:

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2 years ago

PLSSS ANSWER, 35 pointss

xxTIMURxx [149]

Answer:

1.

$(y - 5)(x + y)$

2.

${(x - y)}(x - y + a)$

3.

$(b - 3)(5b - 17)$

Step-by-step explanation:

1. The given polynomial is

$x(y - 5) - y(5 - y)$

We need to factor the second part to get:

$x(y - 5) + y(y - 5)$

We factor y-5 to obtain:

$(y - 5)(x + y)$

2. We have

${(x - y)}^{2} - a(y - x)$

We again factor -1 from the second part to get:

${(x - y)}^{2} + a(x- y)$

We now factor x-y to get:

${(x - y)}^{2} + a(x- y)$

${(x - y)}(x - y + a)$

3. We have

$2(3 - b) + 5 {(b - 3})^{2}$

We factor negative 1 from the first part to get

$- 2(b - 3) + 5 {(b - 3})^{2}$

We now factor b-3 to get:

$(b - 3)( - 2 + 5(b - 3))$

We now simplify to get:

$(b - 3)( - 2 + 5b - 15) = (b - 3)(5b - 17)$

4 0

3 years ago