3 years ago

Maya builds 16 sand castles, Sam builds 7, A dozen sand castles wash away, How many sand castles are left?

Mathematics

1 answer:

bagirrra123 [75]3 years ago

3 0

Answer:

11 castles

Step-by-step explanation:

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ZA and ZB are complementary angles. If mZA = (2x + 10)° and m

fiasKO [112]

Answer:

∠ZB = 54°

Step-by-step explanation:

Given:

Pair of complementary angles

∠ZA = (2x + 10)° and m

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Find:

Measure of ∠ZB

Computation:

complementary angles

a + b = 90°

∠ZA + ∠ZB = 90°

(2x + 10) + (3x + 15) = 90

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x = 13

So,

∠ZB = (3x + 15)

∠ZB = 13(3) + 15

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Evaluate 5(x + y)2 when x = 3 and y = 9

irakobra [83]

Hey there!

$Answer:\boxed{120}$

$Explanation:$

$5(x+y)2$ when x = 3 and y = 9

Let's first move to x and y.

$x=3\\y=9\\3+9=12$

Now multiply 5 by x and y(3+9).

$5*12(\text{x and y combined)}=60$

Now we have the number 2 left, so we have to multiply 60 by 2.

$60*2=120$

$\boxed{120}\text{ is your final answer.}$

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