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
gregori [183]
3 years ago
13

∠x and ∠y are supplementary angles ∠y measures 142 what is the measure of x

Mathematics
1 answer:
mr_godi [17]3 years ago
6 0

Supplementary angles add up to 180

⇒ ∠x + ∠y = 180


∠x + ∠y = 180

∠x + 142 = 180

∠x = 180 - 142 = 38°


Answer: x = 38°

You might be interested in
A computer software vendor claims that a new version of its operating system will crash fewer than 10 times per year on average.
Oksana_A [137]

Answer:

Step-by-step explanation:

The hypothesis is written as follows

For the null hypothesis,

µd ≤ 10

For the alternative hypothesis,

µ > 10

This is a right tailed test

Since no population standard deviation is given, the distribution is a student's t.

Since n = 97

Degrees of freedom, df = n - 1 = 97 - 1 = 96

t = (x - µ)/(s/√n)

Where

x = sample mean = 8.9

µ = population mean = 10

s = samples standard deviation = 3.6

t = (8.9 - 10)/(3.6/√97) = - 3

We would determine the p value using the t test calculator. It becomes

p = 0.00172

Since alpha, 0.01 > than the p value, 0.00172, then we would reject the null hypothesis. Therefore, At a 1% level of significance, there is enough evidence that the data do not support the vendor’s claim.

3 0
3 years ago
What is the value of 72-2[3+2(5-1)]
rusak2 [61]

Answer:

50

Step-by-step explanation:

Already done this

7 0
3 years ago
Read 2 more answers
What is the lcd for five twelfths?
sergij07 [2.7K]
You have to have more than one LCD or it won't work for one you have to have 2 or more fraction to complete this
7 0
3 years ago
William left a 20% tip on a $15.80 lunch bill. How much did he pay for lunch?
qwelly [4]

Answer:

$16 should be the answer

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A number is 2 hundreds more than 355, what is the number?
tatiyna
I think it is 555??
355+200=555

7 0
3 years ago
Other questions:
  • Four numbers from the set 0 to 9, including 0 and 9, are used to create a personal identification number. Once a number is used,
    9·1 answer
  • Mitch needs to purchase soft drinks for a staff party. He is trying to figure out if it is cheaper to buy the 12-pack of soda or
    7·2 answers
  • The dot plot shows the number of hours each week that students in after-school sports spent at practice. Which describes the spr
    12·2 answers
  • AB is a straight line work out the size of angle X
    15·2 answers
  • A cylindrical vase has height 17 in. and radius 3 in. Find the exact surface area of the vase in terms of π. Suppose a second va
    7·1 answer
  • Can someone please solve this?<br>I'm stuck and I don't know how​
    11·2 answers
  • Michael bought a Sprite for $2.30 and three candy bars. He spent $6.50. How much did each candy bar cost?
    10·2 answers
  • The toy store is clearancing out their chess sets. They originally sell for $24.99, but are on sale for $15.00. What is the diff
    7·1 answer
  • 3.PS-15
    11·1 answer
  • If triangle ABC has vertices A(1, 2), B(-1, -1), and C(0, -2), which of the following coordinates is B’ of the dilation using th
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!