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3 years ago

7

In Nancy's class, 11/18 of the girls have brown eyes, 2/9 of the girls have blue eyes, and 1/6 of the girls have hazel eyes. How

many of the girls have either blue or brown eyes? [Note: Write your answer in simplest form.]
13/18
13/27
5/6
15/18

1 answer:

forsale [732]3 years ago

5 0

Answer:

15/18

Step-by-step explanation:

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3 years ago

An angle is 26.2° more than its complementary angle what is the measure of each angle

Mila [183]

Answer:

58.1 and 31.9 degrees

Step-by-step explanation:

x + other angle = 90 because complementary angles add up to 90

x = the angle

x = 26.2 more than the other angle

subtract 26.2 from both sides

x - 26.2 = other angle

x + other angle = 90

plug x - 26.2 for other angle

x + (x-26.2) = 90

2x - 26.2 = 90

add 26.2 to both sides to isolate the variable and its coefficient

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x = 58.1

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7 0

3 years ago

Does anyone have the answers for all?

Shkiper50 [21]

Answer and Step-by-step explanation:

1-6

a.

What you can do is plug in 6 and start by doing the first machine first, then the second. If this doesn't work, do the second machine, then the first machine.

<em><u>The order that works is second machine, then first machine.</u></em>

<u>Second Machine:</u>

y = $(6)^{2} -6$ = 36 - 6 = 30

Plug into first machine now.

<u>First Machine:</u>

y = $\sqrt{(30) - 5} = \sqrt{25} = 5$

We see that the result is 5.

b. <em><u>If we were to do the order of second machine, then first machine, we will never get a negative result (or -5 for that matter), due to the fact that you can't algebraically square root a negative number.</u></em>

<em><u>However, if we were to do the order of first machine, second machine, we can get a negative number. To get -5, we plug in 6 for x in the first machine, getting an answer of 1. We plug this into the second machine, getting 1^2 - 6, which results in -5.</u></em>

1-7. The absolute value of a value is the positive version of that value.

a. |54| = <em><u>54</u></em>

b. $-|-7\frac{3}{5}|$ = $-7\frac{3}{5}$

c. |3| - |-1| = 3 - 1 = <em><u>2</u></em>

d. |2.2 - 5.13| = |-2.93| = <em><u>2.93</u></em>

1-8.

a.

_

<u>| |</u>

<u>| |</u>

<u>| |</u>

<u>| |</u>

<u>| |</u> <u> </u> <u> </u> <u> </u> <u> </u>

<u>| || || || || |</u>

<u>(5 boxes on each side)</u>

_

<u>| |</u>

<u>| |</u>

<u>| |</u>

<u>| |</u>

<u>| |</u> <u> </u> <u> </u> <u> </u> <u> </u> <u> </u>

<u>| || || || || || |</u>

<u>(6 boxes on each side)</u>

b.<em><u> The amount of squares on each side of the figure increases by 1.</u></em>

c. <em><u>There would be 1 square, because we know that the pattern is there is 2 squares added to the next figure, 1 at each end. If we go back a figure, we take away 2 squares.</u></em>

1-9.

a. -42 - 17 = <em><u>-59</u></em>

b. 8 - (-9) = 8 + 9 = <em><u>17</u></em>

c. 8(-9) = <em><u>-72</u></em>

d. -42 ÷ (-7) = <em><u>6</u></em>

e. -2(-3)(-4) = 6(-4) = <em><u>24</u></em>

f. -18 - 7 = <em><u>-25</u></em>

g. $(-5)^{2}$ = <em><u>25</u></em>

h. $-5^{2} = -(5)^2 = -(25)$ = <em><u>-25</u></em>

i. $\sqrt{49}$ = <em><u>7</u></em>

1-10. x = 2 Plug 2 in for x, then solve.

a. y = 7 - 3(2) = 7 - 6 = <em><u>1</u></em>

b. y = $(2)^2 -1$ = 4 - 1 = <em><u>3</u></em>

c. y = $\frac{18}{2}$ = <em><u>9</u></em>

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

<em><u>I hope this helps!</u></em>

8 0

3 years ago