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3 years ago

Please help if you can, thank you

Mathematics

2 answers:

Mariulka [41]3 years ago

7 0

Answer:

1.11333333

Step-by-step explanation:

I calculated using Symbolab

sorry if its wrong

adell [148]3 years ago

6 0

I think that the answer is 2x over 3y

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PLEASE HELP!!

ElenaW [278]

Answer:

-1 and -3

(n+7)(n-8)

Step-by-step explanation:

1. Find the Zeros

$f(x)=x^{2} +4x+3$

$f(x)=\left(x+1\right)\left(x+3\right)$

$x+1=0\\x=-1\\x+3=0\\x=-3$

2. Factoring Trinomials

$f(x)=n^{2} -n-56$

$f(x)=\left(n+7\right)\left(n-8\right)$

$n+7=0\\n=-7\\n-8=0\\n=8$

4 0

3 years ago

3(5x + 7) = 30 + 15x how many solutions

Xelga [282]

Answer:

No solution

Step-by-step explanation:

3(5x+7) = 30 + 15x

DISTRIBUTE

15x+21 = 30+15x

15x-15x = 0

So no solution

8 0

2 years ago

Read 2 more answers

Evaluate the dot product of (5,7) and (-8,2)

Viefleur [7K]

You have to multiple and then add to get
(5)(-8)+(7)(2)=-26

6 0

3 years ago

Read 2 more answers

A random representative survey of 100 seventh-graders in Washington Middle School shows that 20 students read 5 or more books ov

DaniilM [7]

20 out of 100 read 5 or more.

20/100 = 0.2

Now multiply the total students by 0..2:

275 x 0.2 = 55

55 people read 5 or more books.

8 0

3 years ago

There were 35,000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paper

bija089 [108]

Answer:

3,717,000

Step-by-step explanation:

The calculation of paperback copies is shown below:-

Let us assume hardback copies is x, so paperback copies will be 9x

now the equation is

35,000 + x + 9x = 448,000

10x = 448,000 - 35,000

10x = 413,000

$= \frac{413,000}{10}$

= 41,300

Therefore, the paperback copies are

= $9\times 41,300$

= 3,717,000

Hence, the paperback copies is 3,717,000

4 0

3 years ago