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3 years ago

The sum of two binomials is 5x^2-6x . If one of the binomials is3x^2-2x , what is the other binomial?

Mathematics

1 answer:

vlada-n [284]3 years ago

6 0

Its 2x^2-4x, to check it add it to 3x^2-2x or
2x^(2)-4x+3x^(2)-2x

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If you were to add 5 to my number and then divide by 4, you would get 7

Norma-Jean [14]

Let's make an equation. T will be the number.
(T+5)/4=7
Let's multiply both sides by 4 to get T by itself.
T+5=28
Subtract 5 from both sides.
T=23
Your number is 23.

3 0

3 years ago

Read 2 more answers

An art history professor assigns letter grades on a test according to the following scheme.A: Top 5% of scoresB: Scores below th

adoni [48]

Answer:

Grade B score:

$76 \leq x \leq 89$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 73.3

Standard Deviation, σ = 9.7

We are given that the distribution of score on test is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

B: Scores below the top 5% and above the bottom 62%

We have to find the value of x such that the probability is 0.62

$P( X > x) = P( z > \displaystyle\frac{x - 73.3}{9.7})=0.62$

$= 1 -P( z \leq \displaystyle\frac{x - 73.3}{9.7})=0.62$

$=P( z \leq \displaystyle\frac{x - 73.3}{9.7})=0.38$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 73.3}{9.7} = 0.305\\\\x = 76.26$

We have to find the value of x such that the probability is 0.05

$P(X < 0.95) = \\\\P( X < x) = P( z < \displaystyle\frac{x - 73.3}{9.7})=0.95$

Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 73.3}{9.7} = 1.645\\\\x = 89.26$

Thus, the numerical value of score to achieve grade B is

$76 \leq x \leq 89$

7 0

3 years ago

Plz help me anyone fast I have 10 min

Yuki888 [10]

Answer:

sorry i am in 7th grade

Step-by-step explanation:

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3 0

2 years ago

Ten years ago, you purchased a $70,000, 5-year term life insurance policy. At that time you were 30 years old.

Darina [25.2K]

Answer:

a. 14,000

b. 140,000

Step-by-step explanation:

4 0

3 years ago

Draw a histogram for the intervals 16-18,19-21, 22-24, and 25-27 using the following data: 26, 16, 27

Kitty [74]

Answer with explanation:

Class Interval Variate Frequency

16-18 16 1

19-21 0 0

22-24 0 0

25-27 26,27 2

8 0

3 years ago