1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
klasskru [66]
3 years ago
8

Find the value of x. x, 50, and 70

Mathematics
1 answer:
Rama09 [41]3 years ago
5 0
X = 60°

To work this out, you would do 50°+70° to get 120°. You would then subtract this from 180° (the total for any triangle) to get the final answer of 60°.
You might be interested in
Heights of Women. Heights of adult women are distributed normally with a mean of 162 centimeters and a standard deviation of 8 c
Bogdan [553]

Answer:

a) 6.68% of heights less than 150 centimeters

b) 58.65% of heights between 160 centimeters and 180 centimeters

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

\mu = 162, \sigma = 8

a) The percentage of heights less than 150 centimeters

We have to find the pvalue of Z when X = 150. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{150 - 162}{8}

Z = -1.5

Z = -1.5 has a pvalue of 0.0668

6.68% of heights less than 150 centimeters

b) The percentage of heights between 160 centimeters and 180 centimeters

We have to find the pvalue of Z when X = 180 subtracted by the pvalue of Z when X = 160.

X = 180

Z = \frac{X - \mu}{\sigma}

Z = \frac{180 - 162}{8}

Z = 2.25

Z = 2.25 has a pvalue of 0.9878

X = 160

Z = \frac{X - \mu}{\sigma}

Z = \frac{160 - 162}{8}

Z = -0.25

Z = -0.25 has a pvalue of 0.4013

0.9878 - 0.4013 = 0.5865

58.65% of heights between 160 centimeters and 180 centimeters

7 0
3 years ago
Mallorie has 5$ in her wallet. If this 10% of her monthly allowance,what is her monlthly allowance?
horsena [70]
50 because 5 times 10 is 50
6 0
3 years ago
Read 2 more answers
ALGUIEN AYUDEME POR FAVOR :( TENGO QUE ENTREGARLO EN 15 MINUTOS
Serggg [28]
Creo que es A si no es porfavor dime.
6 0
2 years ago
A jar has 15 red marbles,5 blue marbles,10 green marbles.what is the ratio of red marbles to the total number of marbles in simp
Misha Larkins [42]

Answer:

1:2

Step-by-step explanation:

The total number of marbles in the jar can be found by adding all the numbers of marbles given:

15+5+10 = 30

Out of 30 total marbles, 15 are red marbles. We can write the ratio as:

15:30

This ration can be simplified to:

1:2

7 0
3 years ago
Whats 1000*1000 I<br> it's too short. Write at least 20 characters to get a great answer.
Alekssandra [29.7K]

Answer:

1000000

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • What is the reciprical of 1/2. plz help
    8·1 answer
  • Please help!!
    14·2 answers
  • We have 20 thousand dollars that must be invested among 4 possible opportunities. Each investment must be integral in units of 1
    5·1 answer
  • I WILL GIVE BRAINLIST IF YOU HELP
    7·1 answer
  • Consider the enlargement of the parallelogram.
    6·2 answers
  • PLEASE ANSWER ASAP !!!!! WILL GIVE BRAINLIEST
    9·2 answers
  • (-8)^2 pls help me... I need to answer the last question
    6·1 answer
  • Regina leased a car for $380 per month. Her new lease is $475 per month. What is the percent increase in the monthly cost of her
    11·2 answers
  • Joe's grandma lives 36 blocks up the street from Joe. On Saturday, Joe
    15·1 answer
  • QUESTION 2 PLS HELP MEE
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!