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
Westkost [7]
3 years ago
15

Solve for x 4(x + 1) = –28

Mathematics
1 answer:
lora16 [44]3 years ago
4 0

Answer:

X=-8

Step-by-step explanation:

4x+4=-32

Add -4 to both sides

4x=-32

decide both sides by 4

x=-8

You might be interested in
Last year Billy weighed 75kg. This year he weighed 90kg. With what percentage did his weight increase. SHOW ALL WORK!!!
polet [3.4K]

well let's round. 90= 100, 75=80 that is how I face it. now 80 is 1/5 of 5/5= 100. so as a (%) we would sort it like:::: it is 80% out of +100 so he must have grown around 13%-16% due to him being 75kg in the past.

5 0
3 years ago
What are the 5 perfect prime numbers between 50 and 140
grin007 [14]

Answer:

61 67     71 73 79

There you go:)

7 0
3 years ago
Read 2 more answers
Mr Adams has poster paper that is 10 3/4 feet long. He wants to make sheets that are 1/4 of a foot long to make paper airplanes.
8090 [49]

Answer:

43

Step-by-step explanation:

divide 10 3/4 by 1/4

4 0
3 years ago
The accompanying summary data on total cholesterol level (mmol/l) was obtained from a sample of Asian postmenopausal women who w
dimulka [17.4K]

Answer:

99% CI:

-4.637\leq\mu_v-\mu_o\leq 3.737

Step-by-step explanation:

We have to calculate a 99%CI for the difference of means for the vegan and the omnivore.

First, we have to estimate the standard deviation

s_{Md}=\sqrt{\frac{2MSE}{n_h}}

The MSE can be calculated as

MSE=\frac{(SSE_1+SSE_2)}{df} =\frac{(n_1s_1)^2+(n_2*s_2)^2}{n_1+n_2-2}\\\\MSE=\frac{(85*1.05)^2+(96*1.20)^2}{85+96-2}=\frac{7965.56+13272.04}{179} =118.65

The weighted sample size nh can be calculated as

n_h=\frac{2}{1/n_1+1/n_2}=\frac{2}{1/85+1/96}=\frac{2}{0.0222} =90.16

The standard deviation then becomes

s_{Md}=\sqrt{\frac{2MSE}{n_h}}=\sqrt{\frac{2*118.65}{90.16}}=\sqrt{2.632} =1.623

The z-value for a 99% confidence interval is z=2.58.

The difference between means is

\Delta M=M_v-M_o=5.10-5.55=-0.45

Then the confidence interval can be constructed as

\Delta M-z*s_{Md}\leq\mu_v-\mu_o\leq \Delta M+z*s_{Md}\\\\ -0.45-2.58*1.623\leq\mu_v-\mu_o\leq -0.450+2.58*1.623\\\\-0.450-4.187\leq\mu_v-\mu_o\leq-0.450+4.187\\\\-4.637\leq\mu_v-\mu_o\leq 3.737

8 0
3 years ago
An equation is shown.
lubasha [3.4K]
<span>2(a+b)=c
2a + 2b = c
2b = c - 2a
  b = (c - 2a)/a

answer
</span><span>D. b = (c−2a)/2 ; distribute 2 to get 2a+2b, subtract 2a, then divide by 2.</span>
3 0
3 years ago
Other questions:
  • Sam and Jon are attending the same summer camp. The camp is 293 miles away from each of their homes. The graph shows Jon's const
    13·1 answer
  • Does this graph represent a function? Why or why not?
    11·1 answer
  • Please help with this question.
    5·1 answer
  • Find an order pair (x,y) that is a solution to the equation <br> X-4y=4
    14·1 answer
  • A movie theatre sells 20 orders of nachos, 25 candy bars, 40 boxes of popcorn and 45 sodas. Which ratio is the greatest?
    9·1 answer
  • Highlighter<br> CyanMagentaGreeenClear Highlights<br> Headphones<br> Calculators<br> Resources
    8·1 answer
  • I BEEN STUCK ON THIS FOR SO LONG
    11·2 answers
  • What is the width of the terrace?
    5·1 answer
  • 1) Katie baked 215 cookies that she wants to divide equally among her 32 classmates. How many whole cookies will each student ge
    12·1 answer
  • Does this graph show a function? Explain how you know.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!