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2 years ago

8

Elena’s dad buys another type of cell phone that also usually sells for $250. He pays 75% of the usual price. How much did he pa

y?

1 answer:

Mademuasel [1]2 years ago

8 0

Elena’s dad paid $187.5.

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How do you verify this trig identity?

myrzilka [38]

Step-by-step explanation:

$\frac{ \sin(x) \csc(x) }{ \cot(x) }$

Rewrite csc(x) in terms of sin

$\frac{ \sin(x) \frac{1}{ \sin(x) } }{ \cot(x) }$

Multiply the numerator. Notice that the factors in the numerator are reciprocal so they will factor out to 1.

$\frac{1}{ \cot(x) }$

Notice that cotangent and tan are reciprocal so

$\tan(x) = \tan(x)$

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3 years ago

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In the figure, a||b , and both lines are intersected by transversal t. Complete the statements to prove that ∠2 and ∠8 are suppl

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Answer:

Step-by-step explanation:

m∠2 ≅ m∠7 [Alternate exterior angles]

m∠7 + m∠8 = 180° [Linear pair theorem]

m∠2 + m∠8 = 180° [Substitution property]

∠2 and ∠8 are supplementary [Definition of supplementary angles]

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2 years ago

quester [9]

Answer:

It's A. (2, 0) and (0, -4)

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2 years ago

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Kate prepared 9 kilograms of dough after working 3 hours. How many hours did Kate work if she prepared 12 kilograms of dough? As

beks73 [17]

Answer:

4 hours

Step-by-step explanation:

cross multiply

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3 years ago

There are 10 dogs and 4 leave.What is the percent change?<br><br> But can you explain it to me plzz

Vera_Pavlovna [14]

Answer:

the percent change would be 40 percent

Step-by-step explanation:

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3 years ago

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