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Yuliya22 [10]
3 years ago
7

What did Tyler do wrong?

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
7 0

He made and error in the third step by not distributing the -4

THe correct way would be:

9+(-4)(5x-6)

9-20x+24

-20x+33

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In which quadrant or on which axis would you find the point <br> ( 2, 7 )
hram777 [196]

Answer:

The answer is Quadrant 1

7 0
3 years ago
Read 2 more answers
NGC is a hot air balloon in the sky from her spot on the ground. The angle of elevation from Angie to the balloon is 40°. If she
Goshia [24]

Answer:

The distance from hot air balloon to the ground  AC=50.1457 ft.

Step-by-step explanation:

Labelled diagram of given scenario is shown below.

Given that,

An angle of elevation of Hot air balloon by Angie is 40°.

When she  stepped back 200 ft then angle of elevation was 10°.

Height of Angie is  5.5 ft.

To find: How far off the ground is a hot air balloon.

So, from figure

Height of Angie (BC) = 5.5ft

  In triangle ΔABD,

         ⇒                    tan {40\si {\degree}} = \frac{AB}{BD}

         ⇒                      AB = tan (40) \times BD          ....................(1)

Now, In triangle ΔABE

         ⇒                  tan (10)= \frac{AB}{200+BD}

         ⇒                 AB = tan(10)\times (200+BD)

Here, substituting the value AB from Equation (1) we get,

                        tan(10)\times (200+BD)= tan(40)\times BD

                      tan(10)\times 200+tan(10)\times BD= tan(40)\times BD

        ⇒         BD\times (tan(40)-tan(10))=tan(10)\times 20        

        ⇒                   BD\times 0.6628 = 35.2654

        ⇒                       BD = \frac{35.2654}{0.6628} =53.2067 ft        

Now, finding the value of AB from equation (1)

                                 AB= tan(40)\times 53.2067=0.8391\times 53.2067

                                 AB=44.6457 ft              

Therefore Length of AC= AB+BC = (44.6457 + 5.5) ft

                                  AC=50.1457 ft.

Hence,

The distance from hot air balloon to the ground  AC=50.1457 ft.                

6 0
3 years ago
How do you find the other angle of an alternate interior angle if one angle is 70
Elena L [17]
Well alternate angles are congruent, so that means they would both have the same measurement.
If you’re talking about equations with an angle then make the equations equal each other and solve. :)
4 0
3 years ago
The College Board originally scaled SAT scores so that the scores for each section were approximately normally distributed with
likoan [24]

Answer:

Percentage of students who scored greater than 700 = 97.72%

Step-by-step explanation:

We are given that the College Board originally scaled SAT scores so that the scores for each section were approximately normally distributed with a mean of 500 and a standard deviation of 100.

Let X = percentage of students who scored greater than 700.

Since, X ~ N(\mu, \sigma^{2})

The z probability is given by;

          Z = \frac{X-\mu}{\sigma} ~ N(0,1)    where, \mu = 500  and  \sigma = 100

So, P(percentage of students who scored greater than 700) = P(X > 700)

   P(X > 700) = P( \frac{X-\mu}{\sigma} < \frac{700-500}{100} ) = P(Z < 2) = 0.97725 or 97.72% Therefore, percentage of students who scored greater than 700 is 97.72%.

8 0
3 years ago
Why is the ratio 4:6 equal to the ratio 14:21?
bonufazy [111]
4:6 = 2:3

2:3 times 7 equals 14:21

Hope this helped!
8 0
3 years ago
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