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3 years ago

Please someone I need the right answer will give brainiest if right

Mathematics

2 answers:

nika2105 [10]3 years ago

8 0

Answer:

C. Because (-3)^2 is NOT equal to -9

Step-by-step explanation:

zvonat [6]3 years ago

8 0

Answer:

Step-by-step explanation:

√-9 is 3i.

Since there is a negative in the root, you can't have a regular number as the answer.

It askes why -3 is not the answer. Because -3 squared is 9, not -9.

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4. Determine if the given point is a solution of the system of inequalities

Zepler [3.9K]

Answer:

hope this helps

Step-by-step explanation:

a yes

b yes

c no

d yes

7 0

3 years ago

Read 2 more answers

If you want to buy an item in a store that costs $32.50 and is on sale for 30% off, then how much would the item actually cost y

creativ13 [48]

Answer:

$22.75

Step-by-step explanation:

(Original price) is 100%

New price: 100%-30%(discount)=70%

(0.70)*($32.5)=$22.75

6 0

3 years ago

Factor completely 9x2 42x 49. (3x 7)(3x − 7) (9x − 7)(9x − 7) (3x 7)(3x 7) (9x 7)(9x 7).

sweet-ann [11.9K]

Factors of the given expression by splitting middle term of expression $9x^2+42x+49$ will be $(3x+7) and (3x+7)$ .

Given expression is

$9x^2+42x+49$

<h3>What is a factor?</h3>

A factor is a number that divides another number leaving no remainder

After we split 42x into 21x each,

The expression looks like,

$9x^2+21x+21x+49$

$3x(3x+7)+7(3x+7)\\$

Taking 3x+7 as common

$(3x+7) (3x+7)$

So factors will be (3x+7) and (3x+7).

Therefore,

Factors of the given expression $9x^2+42x+49$ will be $(3x+7) and (3x+7)$ .

to get more about factors refer to:

brainly.com/question/25829061

6 0

3 years ago

Which number is its own opposite

Len [333]

The number that is its own opposite is zero.

5 0

4 years ago

Read 2 more answers

Write the equation of a line for a graph hurry!!

anastassius [24]

Answer:

y = -2x + 2

Step-by-step explanation:

y-intercept is 2 (where the line crosses the y axis)

slope is -2 (fall over run)

written in slope - intercept form, you get y = -2x + 2

4 0

3 years ago

Please someone I need the right answer will give brainiest if right​

Please someone I need the right answer will give brainiest if right