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aleksandrvk [35]
3 years ago
5

How do I simplify (-4x^2+2x-3)+(7-2x^2+x)???

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
4 0

Answer: -6x^2 + 3x + 4

Step-by-step explanation:

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Which expressions are equivalent to the one below. Check all that apply. 16^x
madam [21]

A.\ 4^x\cdot4^x=4^{x+x}=4^{2x}\qquad\text{used}\ a^n\cdot a^m=a^{n+m}\\\\B.\ 4^{2x}=(4^2)^x=16^x\qquad\text{used}\ (a^n)^m=a^{nm}\\\\C.\ 4^2\cdot4^x=4^{2+x}\\\\D.\ (4\cdot4)^x=16^x\\\\E.\ 4\cdot4^{2x}=4^{1+2x}\\\\F.\ 4\cdot4^x=4^{1+x}\\\\Answer:\ \boxed{B.\ and\ D.}

3 0
3 years ago
Simplify each expression.<br> 1) 6(1 - 10p)- 7
Y_Kistochka [10]

Answer:

-60p - 1

Step-by-step explanation:

Distribute the parenthesis then add like terms together.

Step 1: Distribute

6 -60p - 7

Step 2: Combine like terms

-60p - 1

4 0
3 years ago
Read 2 more answers
M/J Grade 8 Pre-Algebra-PT-FL-1205070-003
Andreas93 [3]

Answer:

Following are the description of the given course code:

Step-by-step explanation:

The given course code is Pre-Algebra, which is just an introduction arithmetic course programs to train high school in the Algebra 1. This course aims to strengthen required problem solving skills, datatypes, equations, as well as graphing.

  • In this course students start to see the "big picture" of maths but also understand that mathematical, algorithmic, and angular principles are intertwined to form a basis for higher mathematics education.
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5 0
3 years ago
A report states that the mean yearly salary offer for students graduating with a degree in accounting is $48,734. Suppose that a
DENIUS [597]

Solution :

To claim to be tested is whether "the mean salary is higher than 48,734".

i.e. μ > 48,734

Therefore the null and the alternative hypothesis are

$H_0 : \mu = 48,734$

and $H_1 : \mu > 48,734$

Here, n = 50

$\bar x = 49,830$

s = 3600

We take , α = 0.05

The test statistics t is given by

$t=\frac{\bar x - \mu}{\frac{s}{\sqrt n}}$

$t=\frac{49,830 - 48,734}{\frac{3600}{\sqrt 50}}$

t = 2.15

Now the ">" sign in the $H_1$ sign indicates that the right tailed test

Now degree of freedom, df = n - 1

                                              = 50 - 1

                                              = 49

Therefore, the p value = 0.02

The observed p value is less than α = 0.05, therefore we reject $H_0$. Hence the mean salary that the accounting graduates are offered from the university is more than the average salary of 48,734 dollar.

3 0
3 years ago
I don't need anything bu this won't get out of my face
dezoksy [38]

Answer:

huh okay well hi

Step-by-step explanation:

may the force be with u :)

5 0
2 years ago
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