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
defon
3 years ago
15

Apply the distributive property to create an equivalent expression. (m−3+4n)⋅(−8)

Mathematics
1 answer:
Sindrei [870]3 years ago
7 0

Answer:

<h2>-8m + 24 - 32n</h2>

Step-by-step explanation:

The distributive property:

a(b+c)=ab+ac

(m-3+4n)(-8)=(m)(-8)+(-3)(-8)+(4n)(-8)\\\\=-8m+24-32n

You might be interested in
g A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam. We ar
BaLLatris [955]

Answer:

The test statistic is z = 1.25

Step-by-step explanation:

We are interested in determining whether or not the proportion of the student who experience anxiety during the exam is significantly more than 80%.

At the null hypothesis, we test if the proportion is 80%, that is:

H_0: p = 0.8

At the alternate hypothesis, we test if the proportion is more than 80%, that is:

H_a: p > 0.8

The test statistic is:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

80% is tested at the null hypothesis:

This means that \mu = 0.8, \sigma = \sqrt{0.2*0.8} = 0.4

A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam.

This means that n = 100, X = \frac{85}{100} = 0.85

The test statistic is

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{0.85 - 0.8}{\frac{0.4}{\sqrt{10}}}

z = 1.25

The test statistic is z = 1.25

4 0
3 years ago
If g(x) = 2x − 1, what is g(−2.3)?
Kaylis [27]

Answer:

Gx 2x -1 (2,-5)

Step-by-step explanation:

I think that was the thing on apex sorry if wrong

3 0
3 years ago
X has a normal distribution with the given mean and standard deviation. Find the indicated probability. (Round your answer to fo
lapo4ka [179]

Answer:

0.6247

Step-by-step explanation:

The formula for calculating a Z-score is Z = (X - μ)/σ,

where x is the raw score

μ is the population mean

σ is the population standard deviation.

From the question,

μ = 51, σ = 10. We are to find P(36 ≤ X ≤ 56)

Step 1

Find the Probability of X ≤ 36

μ = 51, σ = 10

Z = (X - μ)/σ

Z = 36 - 51/ 10

Z = -15/10

Z = -1.5

We find the Probability of Z = -1.5 from Z-Table

P(X <36) = P(X = 36) = P(Z = -1.5)

= 0.066807

Step 2

Find the Probability of X ≤ 56

μ = 51, σ = 10

Z = (X - μ)/σ

Z = 56 - 51/ 10

Z = 5/10

Z = 0.5

We find the Probability of Z = 0.5 from Z-Table:

P(X < 56) = P(X = 56) = P(Z = 0.5)= 0.69146

Step 3

Find P(36 ≤ X ≤ 56)

P(36 ≤ X ≤ 56) = P(X ≤ 56) - P(X ≤ 36)

= P( Z = 0.5) - P(Z = -1.5)

= 0.69146 - 0.066807

= 0.624653

Approximately to 4 decimal places , P(36 ≤ X ≤ 56) = 0.6247

7 0
3 years ago
Line AB contains points A(-6,3) and B(2,-5). Line AB has a slope that is?
dexar [7]
I believe its -1 because x2-x1/y2-y1 good luck
7 0
2 years ago
Round 36, 993 to nearest thousands
Natalija [7]
37,000 , The 6 is closer to 10 than it is 0
5 0
2 years ago
Read 2 more answers
Other questions:
  • A deep-sea exploring ship is pulling up a diver at a rate of 25 feet per minute the diver is 200 feet below sea level how deep w
    15·2 answers
  • Help me please 10 points
    15·1 answer
  • Waht is 4 x 5 i just learnt multipalcashin
    8·2 answers
  • An angle measures 47°. What are the measures of the angle’s complement and supplement?
    9·2 answers
  • Rewrite 7x + 4 = x – 2 as a system. y = –(7x + 3) y = –(x – 2) y = (7x + 4) y = –(x – 2) y = (7x + 4) y = x – 2
    15·2 answers
  • $12,000 at 2.2% for 5 years.<br> what’s the interest?
    15·1 answer
  • HELP ME‍♂️ILL MARK BRAINLIESTTTT‼️‼️Find the value of x that makes the quadrilateral a parallelogram.
    12·1 answer
  • I need help *********
    13·2 answers
  • Help if you see a troll report them
    13·1 answer
  • Write an equation of the line passing through the point (7,3) that is parallel to the line y=2x-4. ​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!