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Mathematics

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Alex Ar [27]3 years ago

5 0

Answer:

Step-by-step explanation:

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Sherry works 40 hours a week as an office manager. If she made $48,360 last year, how much was she paid per hour?

storchak [24]

Do 48,360 divided by 40 and thatll give you the answer :)))

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3 years ago

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Find the measure for LQR.

Charra [1.4K]

Answer:

Option A

$m\angle LQR=126^o$

Step-by-step explanation:

step 1

Find the value of b

we know that

$m\angle MQR=m\angle LQX$ ----> by vertical angles

substitute the given values

$(-3b+63)^o=(90-12b)^o$

solve for b

$12b-3b=90-63\\9b=27\\b=3$

step 2

Find the measure of angle LQR

we know that

$m\angle LQR+m\angle MQR=180^o$ ---> by supplementary angles (form a linear pair)

$m\angle MQR=(-3b+63)^o$

substitute the value of b

$m\angle MQR=(-3(3)+63)=54^o$

substitute in the expression above

$m\angle LQR+54^o=180^o$

$m\angle LQR=180^o-54^o=126^o$

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3 years ago

Evaluate the expression 3x for x = 7

zavuch27 [327]

Answer:

3(7)

the answer is 21

Step-by-step explanation:

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3 years ago

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Which expression is equivalent to 6(4(6x-4y)-5) ?

iren2701 [21]

Answer:

$144x - 96y - 30$

Step-by-step explanation:

Step 1: Distribute

$6(4(6x - 4y) - 5)$

$6((4 * 6x) + (4 * -4y) - 5)$

$6(24x - 16y - 5)$

Step 2: Distribute again

$(6 * 24x) + (6 * -16y) + (6 * -5)$

$144x - 96y - 30$

Answer: $144x - 96y - 30$

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3 years ago

> In the following triangle, find the values of the angles B and B'. Which are the best approximations to the solutions?

abruzzese [7]

Answer:

Step-by-step explanation:

apply sine rule 2 the triangle on left:

sinB'/10=sin45deg/8.2

sinB'=10*sin45deg/8.2=0.8623

B'=59.58deg or 120.42deg

as shown in the pic, B' > 90deg.

so B'=120.42deg.

the triangle on right has 2 sides at 8.2 so it is isosceles

B=adjacent < of B'

=180-120.42

=59.58deg

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3 years ago

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