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3 years ago

Is there a proportional relationship between x and y? Explain.

Mathematics

2 answers:

myrzilka [38]3 years ago

7 0

as x increases, y increases and as x decreases, y decreases-and that the ratio between them always stays the same.

netineya [11]3 years ago

3 0

Answer:

Where's the question?

Step-by-step explanation:

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What is x2 – 6 = 16x + 30 rewritten in standard form, then factored?

kaheart [24]

Answer:

Step-by-step explanation:

$x^2-6=16x+30\\\mathrm{Subtract\:}30\mathrm{\:from\:both\:sides}\\x^2-6-30=16x+30-30\\Simplify\\x^2-36=16x\\\mathrm{Subtract\:}16x\mathrm{\:from\:both\:sides}\\x^2-36-16x=16x-16x\\\Simplify\\x^2-16x-36=0$

5 0

3 years ago

Iq scores follow a normal distribution with mean 100 and standard deviation 15. give 100 random city college students a standard

kipiarov [429]

About 68% of the people will score between 85 and 115.

The values of 85 and 115 are exactly 15 points away, or 1 standard deviation, away from the mean.

According to the empirical rule, about 68% of the values in a normal distribution are within 1 standard deviation of the mean.

4 0

3 years ago

Which statement is true?

Lady bird [3.3K]

Answer:

13/14 > 25/28

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

I can't figure out how to find the proper area of a prism, can anyone help?

andrey2020 [161]

Answer:

Search Results

Featured snippet from the web

A right prism is made up of two identical, parallel bases on the ends, and the faces are perpendicular to the bases. The formula for finding surface area is 2B + hP (where B is the area of one of the bases, h is the prism's height and P is the perimeter of the base)

Step-by-step explanation:

hope this helps

8 0

3 years ago

Find sin(a+B)

diamong [38]

Answer:

Cos A=5/13

we have

Cos² A= $1-Sin ²A$

25/169=1-Sin²A

sin²A=1-25/169

sin²A=144/169

Sin A= $\sqrt{144/169}=12/13$

again

Tan B=4/3

P/b=4/3

p=4

b=3

h= $\sqrt{3²+4²}=5$

Now

Sin B=p/h=4/5

in IV quadrant sin angle is negative so

Sin B=-4/5

CosB=b/h=3/5

Now

Sin(A+B):sinAcosB+CosAsinB

now 

substitute value

Sin(A+B):12/13*3/5+5/13*(-4/5)=36/65-4/13

=16/65 is a required answer

6 0

2 years ago