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3 years ago

PLEASE HELP ME ASAP I'LL GIVE BRAINLIEST

Mathematics

1 answer:

Schach [20]3 years ago

4 0

Answer:

Y = 6

Step-by-step explanation:

Rearrange terms

4+ =10

+ 4 = 10

Subtract 4 from both sides of the equation:

+ 4 =10

+ 4 −4 = 10 − 4

Simplify: Subtract Numbers:

Solutions is y= 6

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Find the sum and product of the roots. 2x^2 + 6x - 8 = 0

netineya [11]

Suppose you can factorize:

$ax^2+bx+c=a(x-r_1)(x-r_2)$

Then by expanding the right side, you have

$ax^2+bx+c=a(x^2-(r_1+r_2)x+r_1r_2)=ax^2-a(r_1+r_2)x+ar_1r_2$

which means in this case, you have to have

$\begin{cases}6=-2(r_1+r_2)\\-8=2r_1r_2\end{cases}\implies\begin{cases}r_1+r_2=-3\\r_1r_2=-4\end{cases}$

3 0

3 years ago

Note: Images may not be drawn to scale

OleMash [197]

Answer:

1/3

Step-by-step explanation:

The scale factor is the ratio of image lengths to original lengths. For this pair of figures, the scale factor is ...

A'B'/AB = 2/6 = 1/3

The scale factor is 1/3.

8 0

3 years ago

In the figure below, AMNO

NeX [460]

Given:

$\Delta MNO\cong \Delta PQR$

To find:

The length of QR.

Solution:

We have,

$\Delta MNO\cong \Delta PQR$

Then, $MN=PQ$ (CPCTC)

$10=4x-2$

$10+2=4x$

$12=4x$

Divide both sides by 4.

$\dfrac{12}{4}=x$

$3=x$

Similarity,

$MO=PR$ (CPCTC)

$2y+3=21$

$2y=21-3$

$2y=18$

Divide both sides by 2.

$y=9$

Now,

$x+y=3+9$

$x+y=12$

Therefore, the correct option is d.

4 0

3 years ago

8.798 round it to the nearest hundredth

FinnZ [79.3K]

Answer:

8.80

Step-by-step explanation:

When rounding up and you are stuck with nine

You can't say 8.710

Your simply add one to the number before it

8.80 that your answer

7 0

3 years ago

Hey can you please help me posted picture of question

Paladinen [302]

We have to take out the greatest common factor from the given polynomial to factorize the expression. If you observe the terms of the polynomial, the greatest factor that is common to all the terms is $4 x^{4}$ . So taking it out as common, the factorization of the polynomial will be:

$16 x^{9} -36 x^{5}-8 x^{4} \\ \\ 
=4 x^{4}(4 x^{5}-9x-2)$

So the option C gives the correct answer

7 0

3 years ago