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Shalnov [3]
3 years ago
8

How are these two equations related?

Mathematics
1 answer:
astraxan [27]3 years ago
8 0

Answer:

both are multiplication mark me brainiest

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Question 1 (1 point)
taurus [48]

Answer:

question no 1:slope=5

Step-by-step explanation:

let(x=5andy=8)(a=7andb=18)

now

slope=(b-y)/(a-x)=(18-8)/(7-5)=5

5 0
3 years ago
Read 2 more answers
According to a recent survey, 24 students
babunello [35]

Answer:

80 students.

Step-by-step explanation:

30% = 24 students

10%     = 24/3 = 8

100% = 8*10 = 80 students.

5 0
3 years ago
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Doing research for insurance rates, it is found that those aged 30 to 49 drive an average of 38.7 miles per day with a standard
Alja [10]

Answer: 0.4302

Step-by-step explanation:

Given : Mean : \mu=\text{38.7 miles }

Standard deviation : \sigma=\text{6.7 miles }

Sample size : n=60

Also, these distances are normally distributed.

Then , the formula to calculate the z-score is given by :-

z=\dfrac{x-\mu}{\sigma}

For x=32.5

\\\\ z=\dfrac{32.5-38.7}{6.7}=-0.925373134\approx-0.93

For x=40.5

\\\\ z=\dfrac{40.5-38.7}{6.7}=0.268656\approx0.27

The p-value = P(-0.93

=P(0.27)-P(-0.93)=0.6064198- 0.1761855=0.4302343\approx0.4302

Hence, the required probability :-0.4302

3 0
3 years ago
9 through 12 please and I need show work and explanation for 12
stiks02 [169]
10. >, because there are 16oz in a lb

11. =, because there are 36 inches in a yd. 

12. 13qts, because you multiply the 16 oz by the 26 mugs. Then you can divide by 32 since that's how many oz are in a qt
7 0
3 years ago
Find the value c that will make 9x^2 +30x+c a perfect square trinomial
anzhelika [568]

Answer:

c = 25

Step-by-step explanation:

<u>Given </u><u>:</u><u>-</u>

  • A quadratic equation is given to us.
  • The equation is 9x² + 30x + c .

And we need to find out the value of c for which the given trinomial is a perfect square. On looking at the given expression all the terms are having positive signs before them .So we can rewrite it on the basis of ,

<u>Identity</u><u> </u><u>:</u><u>-</u><u> </u>

\implies (a+b)^2=a^2+b^2+2ab

Let's try to set the equation on this Identity .

The firsr term is 9x² . We can write it as ,

\implies 9x^2=(3x)^2

Hence the middle term here should contain 3 and 2 as their factors. Let's Break the middle term .

\implies 30x = 2.3x.5

Therefore in order to make the whole expression as perfect square 5² must be replaced by c . The expression would become ,

\implies 9x^2+30x + 5^2 \\\\\implies (3x)^2+2.3x.5 +5^2\\\\\implies (3x+5)^2

<u>Hence </u><u>the </u><u>value </u><u>of </u><u>c </u><u>should</u><u> be</u><u> </u><u>2</u><u>5</u><u> </u><u>.</u>

8 0
3 years ago
Read 2 more answers
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