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
mylen [45]
3 years ago
9

Please helppp (had to have 20 words haha)

Mathematics
1 answer:
s2008m [1.1K]3 years ago
6 0

Answer:

w==77

Step-by-step explanation:

The sum of the 2 opposite interior angles equals the exterior angle.

w-36 +w-20=w+21

combine like terms: 2w-56=w+21

subtract w from both sides: w-56=21

add 56 to both sides: <u>w=77</u>

You might be interested in
the 3 sides of triangle are n, 4n + 1 , 5n- 8. if the perimeter of the triangle is 93 cm, what is the length of each side?​
REY [17]

Answer:

10, 41, 42

Step-by-step explanation:

(n)+(4n+1)+(5n-8)=93 because triangle perimeter

10n-7=93

10n=100

n=10

7 0
1 year ago
Read 2 more answers
Please help the test is due today !!
fiasKO [112]

Answer:

The first one is x axis

the second one is the axis

third one doesn't seem to be a reflection

8 0
2 years ago
Numerical coefficient of the term x over 7
Over [174]

Answer:

  1/7

Step-by-step explanation:

In the term x/7, the numerical multiplier of x is 1/7.

3 0
3 years ago
A professor gives her 100 students an exam; scores are normally distributed. The section has an average exam score of 80 with a
frozen [14]

Answer:

6.18% of the class has an exam score of A- or higher.

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 = 80, \sigma = 6.5

What percentage of the class has an exam score of A- or higher (defined as at least 90)?

This is 1 subtracted by the pvalue of Z when X = 90. So

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

Z = \frac{90 - 80}{6.5}

Z = 1.54

Z = 1.54 has a pvalue of 0.9382

1 - 0.9382 = 0.0618

6.18% of the class has an exam score of A- or higher.

4 0
2 years ago
Explain the meaning of (0,0) on a coordinate plane
Volgvan
(0,0) means the origin of the coordinate plane and its when bothe the x and y xoordinates are 0
7 0
3 years ago
Other questions:
  • A taxi charges $3.00 for the first 1/5 mile and 0.25 for each additional 1/5 of a mile the comes to $24.00 how fra did the taxi
    10·2 answers
  • Please help me I'm strugglingg i will mark you BRAINIYIEST
    12·1 answer
  • The y-value is ten decreased by the square of the x-value
    5·1 answer
  • What is the x value for 21x+7y=42
    7·2 answers
  • What is 7500 written in scientific notation
    7·2 answers
  • The price of nails, n, is $1.29 per pound, the price of washers, w, is $0.79 per
    9·1 answer
  • What fraction and decimal forms match the long division problems? <br> plz help its for a test!
    8·1 answer
  • Which graph has slope of 2
    5·2 answers
  • WILL GIVE BRAINLIEST!!
    11·2 answers
  • 10 increased by twice Chrissy's height Use the variable c to represent Chrissy's height.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!