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zepelin [54]
2 years ago
5

PLEASE HELP ME ASAP Solve for x in the diagram below

Mathematics
2 answers:
balandron [24]2 years ago
8 0

Answer:

\huge\boxed{\sf x = 12}

Step-by-step explanation:

6x - 2 + 20 = 90     [Complementary Angles]

6x + 18 = 90

Subtracting 18 to both sides

6x = 90 - 18

6x = 72

Dividing both sides by 6

x = 12

\rule[225]{225}{2}

Hope this helped!

<h3>~AnonymousHelper1807</h3>
goldfiish [28.3K]2 years ago
7 0

Answer:

x=12

Step-by-step explanation:

The right angle is congruent to the other side. So 90-20=70. 6x-2=70. Add 2 to both sides to cancel out the minus 2. 6x=72 72/6=12

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vova2212 [387]
12:13

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8 0
3 years ago
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Jack reads his book for 8 minutes before school and 10 minutes after school. He attends school Monday through Friday. Which equa
sweet-ann [11.9K]

Answer:

<h2>90 min or 1hr 30 mins</h2>

Step-by-step explanation:

Even though the options to choose from are not given in this question we can try and lay our hand on the most likely equation for the number of minutes Jack reads his book.

firstly on a daily Jack reads a total of = 8+10 = 18 mins

He attends school from Mon- fri = 5 days

Now on a weekly basis jack reads = 5*18

in other words, the equation is simply the number of days times the time spent to read his book per day

hence this is  = 90 min or 1hr 30 mins

5 0
3 years ago
The calibration of a scale is to be checked by weighing a 13 kg test specimen 25 times. Suppose that the results of different we
Natali5045456 [20]

Solution :

a).

Given : Number of times, n = 25

            Sigma, σ = 0.200 kg

            Weight, μ = 13 kg

Therefore the hypothesis should be tested are :

$H_0 : \mu = 13 $

$H_a : \mu \neq 13$

b). When the value of $\overline x = 12.84$

 Test statics :

   $Z=\frac{(\overline x - \mu)}{\frac{\sigma}{\sqrt n}} $

  $Z=\frac{(14.82-13)}{\frac{0.2}{\sqrt {25}}} $

          $=\frac{1.82}{0.04}$

          = 45.5  

P-value = 2 x P(Z > 45.5)

            = 2 x 1 -P (Z < 45.5) = 0

Reject the null hypothesis if P value  < α = 0.01 level of significance.

So reject the null hypothesis.

Therefore, we conclude that the true mean measured weight differs from 13 kg.

3 0
3 years ago
Help me and be BRAINEST!!!!!!!!!!!!!!!!!!!
lakkis [162]

1.the flight from Baltimore to Miami is 2 hours and 35 minutes

2.the flight to Boston from Baltimore is the shortest.

Miami = 2hrs 35min

Boston = 1hr 15min

Atlanta = 1hr 55min

Indianapolis = 1hr 40min

5 0
3 years ago
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X + 2 = 5x + 26<br><br> Please help
kkurt [141]
x+2=5x+26

Move all the x's to one side of the equation. This is a step necessary to solve this equation.

Subtract both sides by x.

x+2-x=5x+26-x
2=4x+26

Flip equation. We always want to have the variable written on the left side.

4x+26=2

Subtract both sides by 26.

4x+26-26=2-26
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Divide both sides by 4 to finish this off.

x=-6

That's your answer. Have an awesome day! :)
7 0
3 years ago
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