All categories

3 years ago

Please someone help me !!!!!

Mathematics

1 answer:

Sveta_85 [38]3 years ago

6 0

X² = 16
x = ±√16
x = ±4

The roots of this equation are -4 and 4
Сorrect answer is third from above

You might be interested in

If m = 5 and n = -2, evaluate 3m - 4n and n2 - m and find the product of the two expressions.

ddd [48]

Hence the correct answer is C) -23

Further explanation:

We have to put the values of m and n into both expression first separately and then multiply the answers.

Given expressions are:

$Exp\ 1:3m-4n\\Exp\ 2: n^2-m$

The values are:

$m=5\\n=-2$

Putting the values in expression 1:

$3m-4n\\=3(5)-4(-2)\\=15+8\\=23$

Putting the values of m and n in second expression

$n^2-m\\=(-2)^2-5\\=4-5\\=-1$

Multiplying both expressions:

$(3m-4n)(n^2-m)=23* (-1)=-23$

Hence the correct answer is C) -23

Keywords: Polynomials, Putting values in expressions

Learn more about polynomials at:

#LearnwithBrainly

8 0

3 years ago

I need the answer please

aniked [119]

The answer is of your question is H.

8 0

3 years ago

Read 2 more answers

Which of the following equals 140 to nearest 10

jarptica [38.1K]

Which of the following equals 140 to nearest 10
A.134

B.145

C.136

D.146

6 0

2 years ago

Solve the following system of equations Y= -2x – 3 4y + x =16

Aleksandr-060686 [28]

Answer:

(-4,5)

*View attached graph*

Step-by-step explanation:

y = -2x - 3

4y + x = 16

4(-2x - 3) + x = 16

-8x - 12 + x = 16

-7x - 12 = 16

+12 + 12

-7x = 28

/-7 /-7

x = -4

4y + x = 16

4y + (-4) = 16

4y - 4 = 16

+ 4 + 4

4y = 20

/4 /4

y = 5

(x,y) -> (-4,5)

Hope this helps!

6 0

2 years ago

A. Two numbers are in the ratio 5:7. When 3 is added to each number, the new ratio becomes 3 : 4. Find the numbers.

Usimov [2.4K]

Answer:

answer is 3 and ratio of two different numbers

5 0

2 years ago