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Elodia [21]
3 years ago
7

I dont know how to write the question or answers​

Mathematics
1 answer:
brilliants [131]3 years ago
5 0

Answer:

i think i think its B

Step-by-step explanation:

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Solve the equation for the red variable.
yawa3891 [41]

Answer:

d/r

Step-by-step explanation:

d = rt

t = d/r

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2 years ago
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3 % of 8.85 is what?
vlabodo [156]

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0.2655

Step-by-step explanation:

Multiply 8.85 by 3. Then Divide it by 100.

You will get the dividend of 0.2655.

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Susan Sound predicts that students will learn most effectively with a constant background sound, as opposed to an unpredictable
alukav5142 [94]

Answer:

An ANOVA test

Step-by-step explanation:

You will use the ANOVA test, which is a test that compares the means of more than 2 samples.  Since the teacher used 3 test groups, she would have to use this test if she wanted to do a hypothesis test to determine if the means are equal.  

*This test only tells us if the means are equal, it won't say which is greater than the other.  You would have to do 3 individual hypothesis tests comparing 2 means at a time in order to determine that.

8 0
3 years ago
Write an equation for the horizontal line that contains point E(-3, -1)
ryzh [129]
A horizontal line is represented by y = a number...with that number being the y coordinate of ur point (-3,-1).

Therefore, ur equation is : y = -1
5 0
3 years ago
After a storm, two street lights with the same length are leaning against each
Ray Of Light [21]

Answer:

c = 4.79 feet

Step-by-step explanation:

Given question is incomplete without a picture; find the question with the attachment.

Two poles AD and DB of same length are leaning against each other.

Distance between the poles (AB) = 45 feet

m(∠ADB) = 180°- (60 + 50)°

               = 70°

By sine rule,

\frac{sin50}{AD}=\frac{sin70}{45}=\frac{sin60}{DB}

AD=\frac{45\times (sin50)}{sin70}

      = 36.68 ft

Similarly,

DB = \frac{45\times sin60}{sin70}

     = 41.47 ft

Now c = DB - AD

           = 41.47 - 36.68

           = 4.79 feet

4 0
3 years ago
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