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4 years ago

Can someone please help and show all the work?! Hurry it’s a test!!! WILL MARK BRAINLYEST

Mathematics

1 answer:

Trava [24]4 years ago

8 0

Don’t know but will check on Google

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How to slove -3(×+4)+15=6-4

givi [52]

Answer:

No solution

Step-by-step explanation:

This equation has no solution.....

8 0

4 years ago

Write this Trinomial in Factored form 2n^2+15n+7

mariarad [96]

Answer:

$(2n+1)(n+7)$

Step-by-step explanation:

Here we are given the quadratic expression:

$2n^{2}+15n+7$

Now we can use AC method to factorise it.

IN this method we first have to multiply 2 and 7.

2 multiplied by 7 equals 14.

Now we have to find two possible factors of 14 which add up to give 15.

Two such possible factors of 14 are 14 and 1.

So now we replace 15n by 14n+1n.

Rewriting the expression,

$2n^{2}+14n+1n+7$

Factoring by grouping, we have

$2n(n+7)+1(n+7)$

$(2n+1)(n+7)$

So the final factored form of the trinomial is

$(2n+1)(n+7)$

4 0

3 years ago

Combine the following fractions by addition or subtraction as directed.

Marina86 [1]

Answer: $\frac{6}{y^2-xy}-\frac{6}{x^2-xy}=\frac{6(x+y)}{xy(y-x)}$

Explanation:

Combining the fractions, we have:

$\begin{gathered} \frac{6(x^2-xy)-6(y^2-xy)}{(x^2-xy)(y^2-xy)} \\ \\ =\frac{6x^2-6xy-6y^2+6xy}{(x^2-xy)(y^2-xy)} \\ \\ =\frac{6x^2-6y^2}{x(x-y).y(y-x)} \\ \\ =\frac{6(x-y)(x+y)}{-xy(x-y)^2} \\ \\ =\frac{-6(x+y)}{xy(x-y)} \\ \\ =\frac{6(x+y)}{xy(y-x)} \end{gathered}$

8 0

2 years ago

What is the value of x?<br> sin(x + 22)° = cos(2x - 7)º

EleoNora [17]

Answer:

x=25°

Step-by-step explanation:

sin (x+22)=cos(2x-7)=sin (90-(2x-7))

x+22=90-(2x-7)

x+22=90-2x+7

x+2x=97-22

3x=75

x=75/3=25°

5 0

3 years ago

Read 2 more answers

TIMED, need the answer ASAP, will give brainiest

ololo11 [35]

I think it's four?...

6 0

4 years ago