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Usimov [2.4K]
3 years ago
9

Sarah Had a math test and she got 400/450 questions right. The test was worth 450 points. What is the PERCENT she got on her tes

t ( ex. 90% 67% etc)
Mathematics
2 answers:
sergeinik [125]3 years ago
5 0
She got a 89% on her test
Gala2k [10]3 years ago
5 0

Answer:

89%

Step-by-step explanation:

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Can someone help me on this 6th grade problem? Its worth 15 points for anyone to answer
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<u>I Believe your answer is B, put all the numbers in order then find the middle number</u>

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it may be thought of as the "middle" value of a data set. For example, in the data set {1, 3, 3, 6, 7, 8, 9}, the median is 6,

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B. 1 angle A congruent angle B
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3 years ago
312 divided by 3 equal?
KiRa [710]

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Step-by-step explanation:

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11Alexandr11 [23.1K]
<h3>Answer: B) Only the first equation is an identity</h3>

========================

I'm using x in place of theta. For each equation, I'm only altering the left hand side.

Part 1

cos(270+x) = sin(x)

cos(270)cos(x) - sin(270)sin(x) = sin(x)

0*cos(x) - (-1)*sin(x) = sin(x)

0 + sin(x) = sin(x)

sin(x) = sin(x) ... equation is true

Identity is confirmed

---------------------------------

Part 2

sin(270+x) = -sin(x)

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-cos(x) = -sin(x)

We don't have an identity. If the right hand side was -cos(x), instead of -sin(x), then we would have an identity.

7 0
3 years ago
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