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
Anon25 [30]
1 year ago
15

I need help with my math

Mathematics
1 answer:
REY [17]1 year ago
7 0

EXPLANATION

Applying the sum of interior angles theorem give us the following relationship:

60 + 3x + (x+20) = 180

Removing the parentheses:

60 + 3x + x + 20 = 180

Adding like terms:

80 + 4x = 180

Subtracting -80 to both sides:

4x = 180 - 80

Subtracting numbers:

4x = 100

Dividing both sides by 4:

x = 100/4

Simplifying:

x = 25

Then, the missing angles are:

25 + 20 = 45 degrees

3*25 = 75 degrees

You might be interested in
What is equivalent expressions by combining terms like 5c - 4c + c
vampirchik [111]

the answer is 2c you - the five with four then you gaana have 1c +1c equal 2c.

4 0
3 years ago
PLEASE HELP ME KIND SOUL! Look at the picture below to understand everything
ruslelena [56]

Answer:

Yes, it is 368.24, because you cannot use a digit more than once.

Step-by-step explanation:

5 0
3 years ago
A genetic experiment involving peas yielded one sample of offspring consisting of 409 green peas and 171 yellow peas. Use a 0.05
grigory [225]
The usual expectation for this kind of experiment is that the peas would yield green and yellow peas in a 3:1 ratio, or 75% green to 25% yellow. So your null hypothesis is that the proportion of yellow peas is p=0.25.

You're testing the claim that 26% of the offspring will be yellow, which means the alternative hypothesis is that the proportion of yellow peas is actually 0.26, or more generally that the expected proportion is greater than 0.25, or p>0.25.

The test statistic in this case will be

Z=\dfrac{\hat p-p_0}{\sqrt{\dfrac{p_0(1-p_0)}n}}

where p_0 is the proportion assumed under the null hypothesis, \hat p is the measured proportion, and n is the sample size. You have p_0=0.25, \hat p=\dfrac{171}{171+409}\approx0.29, and n=409+171=580, so the test statistic is

Z=\dfrac{0.29-0.25}{\sqrt{\dfrac{0.25\times0.75}{580}}}\approx2.2247

Because you're testing p>p_0, this is a right-tailed test, so the P-value is

\mathbb P(Z>2.2247)\approx0.0131

The critical value for a right-tail test at a 0.05 significance level is Z_\alpha\approx1.6449, which means the rejection region is any test statistic that is larger than this critical value. Since Z>Z_\alpha in this case, we reject the null hypothesis.

So the conclusion for this test is that the sample proportion is indeed statistically significantly different from the proportion suggested by the null hypothesis.
8 0
3 years ago
Read 2 more answers
Danny and 4 friend go to the movies. Each person buys a movie ticket for $10, a snack for $2 and a drink for $3. Write an expres
Serggg [28]

8000647 dollars

Step-by-step explanation:

broggxtxycycuvuh8y7rtwh4w5iwutettixgdbf

8 0
3 years ago
Lisa purchased a hat for $10, a purse for $20, and a book for $23. The sales tax rate was 7.2 percent. What was the total amount
Mamont248 [21]

$56.82 is the correct amount

7 0
3 years ago
Other questions:
  • Which function is a quadratic function? c(x) = 6x + 3x3 d(x) = x – 8x4 p(x) = –5x – x2 k(x) = 2x2 + 9x4
    5·2 answers
  • A pack of pencils contains 20 pencils. If Trish uses 3/4 of the pack, how many pencils will she use?
    5·1 answer
  • someone plz help me. with promblems above extrax points. i will mark brainliest the first answer and the one that is expalined
    10·1 answer
  • F(x)=(x-6)e^-3x find the interval in which f(x) is increasing, the intervals on which f(x) is decreasing, and the local extrema
    12·1 answer
  • Solve.
    12·1 answer
  • TOU
    12·2 answers
  • Which model represents the factors of 4x2 – 9?
    15·2 answers
  • A scientist needs 10 L of a solution that is 60% acid. She has a 50% acid solution and a 90% acid solution she can mix together
    6·1 answer
  • A pound of clementines costs $2.49 and ms. wild buys 1.8 pounds. how much did she spend?
    7·1 answer
  • Your budget is to spend no more than $450 on frozen treats.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!