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
saul85 [17]
3 years ago
7

Please help me with my sample work

Mathematics
1 answer:
eduard3 years ago
8 0
33)
(5x²+3)+(15x²+2)
5x^2+15x^2+3+2
20x^2+5
5(4x^2+1)

39)
(14h^4+3h^3)-(9h^4+2h^3)
14h^4-9h^4+3h^3-2h^3
5h^4+h^3
h^3(5h+1)


You might be interested in
Rewrite the equation in Ax+By=C form.<br><br> Use integers A, B, and C.<br><br> y+5=5(x-3)
Kaylis [27]

y+5=5(x-3)\\ y+5=5x-15\\ 5x-y=20

4 0
3 years ago
Read 2 more answers
The feet of the average adult woman are 24.6 cm long, and foot lengths are normally distributed. If 16% of adult women have feet
nevsk [136]

Answer:

Approximately 16% of adult women have feet longer than 27.2 cm.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score 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 p-value, we get the probability that the value of the measure is greater than X.

The feet of the average adult woman are 24.6 cm long

This means that \mu = 24.6

16% of adult women have feet that are shorter than 22 cm

This means that when X = 22, Z has a p-value of 0.16, so when X = 22, Z = -1. We use this to find \sigma

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

-1 = \frac{22 - 24.6}{\sigma}

-\sigma = -2.6

\sigma = 2.6

Approximately what percent of adult women have feet longer than 27.2 cm?

The proportion is 1 subtracted by the p-value of Z when X = 27.2. So

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

Z = \frac{27.2 - 24.6}{2.6}

Z = 1

Z = 1 has a p-value of 0.84.

1 - 0.84 = 0.16

0.16*100% = 16%.

Approximately 16% of adult women have feet longer than 27.2 cm.

3 0
3 years ago
Kara incorrectly factored 32x2 + 48x + 18 as shown. Describe her error and correctly factor the expression. 32x2 + 48x + 18 = 2(
aev [14]

Answer:

Kara incorrectly factored 2(16x^2 + 24x + 9) she did not find the correct factors when she factored out. The correct factored expression would be 2(4x+3)^2

Step-by-step explanation:

32x^2 + 48x + 18

2(16x^2 + 24x + 9)

2(16x^2 + 12x) (12x + 9)

2 4x(4x + 3) 3(4x + 3)

2(4x + 3)(4x + 3)

2(4x + 3)^2

3 0
3 years ago
Fill in the blank.<br><br> 7.95x10^7 = [ ? ]x 10^6
skelet666 [1.2K]

Answer:

79.5

Step-by-step explanation:

10^7 = 10^6 * 10

then 10*7.95 = 79.5

7 0
3 years ago
What is the probability of rolling 2 standard dice which sum to 9?
Marianna [84]
Answer: 1/9

Explanation: Tbh I can’t explain how my brain just clicks sometimes
4 0
3 years ago
Other questions:
  • What value is equivalent to 18 – 3(4-6) *2? I think the answer is 30, but I'm not sure.
    8·2 answers
  • I need help 44points If u help me
    12·1 answer
  • Four consecutive integers that add up to 314
    8·1 answer
  • Jenelle had $15 and wanted to earn more. She worked for two hours and earned $6. She was so excited that she decided to buy a ne
    13·2 answers
  • 3 freshmen and 2 sophomores from a sorority will attend a conference. If the sorority has 12 freshmen and 9 sophomores, in how m
    15·1 answer
  • Please Help me Find NM using Secant
    14·1 answer
  • Subtract t from w, divide the result by u, then subtract v from what you have.
    9·1 answer
  • (x+1)(x+2) = K(3x+7)​
    13·2 answers
  • Is greater than or equal to, minus, 5.
    9·1 answer
  • guys, pleasee please can somebody who is good at school help me please, im failing, im behind and my mom is going to hit me agai
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!