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Kaylis [27]
3 years ago
7

Help? We learned this last year but I’m dumb soooooo yeee

Mathematics
2 answers:
eimsori [14]3 years ago
8 0

Answer:

x = 14

Step-by-step explanation:

When angles are complementary, it means that they add up to 90°.

This means that (4x)°+(2x+6)° = 90°, or (4x)+(2x+6) = 90  (Got rid of degree signs).

Now solve for x.

(4x)+(2x+6) = 90

simplify

4x+2x+6 = 90

-6 both sides

4x+2x = 84

simplify

6x = 84

÷6 both sides

x = 14

Komok [63]3 years ago
6 0

Answer:

14

Step-by-step explanation:

the sum of the terms in the angle is 6x+6. Since the angles ate complementary their sum is 90 so you set the aforementioned sum equal to 90. You then solve for x and get 14.

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(a) = iv

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c= ii

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2 years ago
Find the slope of the line containing the pair of points. ​(​7,​4) and ​(6​,-9​)
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Answer:

13

Step-by-step explanation:

We can use the slope formula to find the slope

m = ( y2-y1)/(x2-x1)

   = ( -9-4)/(6-7)

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Angle measure labeled a<br> The arc mesure labeled c
inna [77]

Step-by-step explanation:

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<h3>stay safe healthy and happy.</h3>
5 0
3 years ago
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15.12 is what percent of 12?
Llana [10]

Answer:

<h2>126%</h2>

Step-by-step explanation:

\bold{METHOD\ 1}\\\\\begin{array}{ccc}15.12&-&p\%\\\\12&-&100\%\end{array}\qquad\text{cross multiply}\\\\\\12p=(15.12)(100)\\12p=1512\qquad\text{divide both sides by 12}\\p=126

\bold{METHOD\ 2}\\\\p\%=\dfrac{p}{100}\\\\p\%\ of\ 12\ is\ equal\ to\ 15.12:\\\\\dfrac{p}{100}\cdot12=15.12\\\\\dfrac{12p}{100}=15.12\qquad\text{multiply both sides by 100}\\\\12p=1512\qquad\text{divide both sides by 12}\\\\p=126

6 0
3 years ago
A statistics practitioner in a large university is investigating the factors that affect salary of professors. He wondered if ev
uysha [10]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The null hypothesis is  H_o :  \beta_1 = 0

 The alternative hypothesis is  H_1 :  \beta_1 \ne 1

Step-by-step explanation:

From the question we are told that

        The number observations is  n =  100

         The  annual salary (in dollars) is  y

          The  mean score on teaching evaluation is  x

          The the relationship between the y and  x is

                y =  \beta_0  +  \beta _1 x + \epsilon

Where  \beta _1 is the mean of the equation so

  The null hypothesis is  H_o :  \beta_1 = 0

   The alternative hypothesis is  H_1 :  \beta_1 \ne 1

         

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3 years ago
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