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3 years ago

PLEASE ANSWER THIS QUESTION !! 20 POINTS AND BRAINLIEST !!

Mathematics

2 answers:

Anastaziya [24]3 years ago

8 0

Answer:

x^2+7x+12

Step-by-step explanation:

(x+3) (x+4)

FOIL

first: x*x = x^2

outer: 4x

inner: 3x

last: 3*4 =12

Add them together

x^2 +4x+3x+12

x^2+7x+12

NemiM [27]3 years ago

5 0

x^2 + 7x + 12

or A

Hope this helpsss

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An altitude is drawn from the vertex of an isosceles triangle, forming a right angle

romanna [79]

Answer:

54 in

Step-by-step explanation:

Use Pythagorean to find the missing side x of the triangle.

It is a hypotenuse with other sides 18 in and half of 15 in:

$x = \sqrt{18^2+(15/2)^2} =\sqrt{380.25} =19.5$

The perimeter is:

P = 2*19.5 + 15 = 54

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2 years ago

love history [14]

Answer:

B. x < -1

Step-by-step explanation:

Hello!

Let's put them in order from greatest to least:

$\{-2,-5,-9,-12\}$

Given our possible inequalities, we need to find the inequality that contains all of these values.

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1 year ago

Consider this expression.

schepotkina [342]

Answer:

$9m^2 + 17m- 9$

Step-by-step explanation:

Given

$7m^2 + (2m - 1)(m + 9)$

Required:

Simplify

We start by opening the bracket

$7m^2 + (2m(m + 9) - 1(m + 9))$

$7m^2 + 2m^2 + 18m - m - 9$

Collect Like Terms

$9m^2 + 17m- 9$

Hence, the equivalent expression is $9m^2 + 17m- 9$

5 0

2 years ago

What percent of 150 is 9?

irga5000 [103]

One of the ways to find the answer is to find how much 1 percent of 150 is. To do that we just have to divide 150 by 100:

150 / 100 = 1.5

Now we can divide 9 by 1.5 to know how much percent of 150 it is:

9 / 1.5 = 6

Let's check it:

150 * 6% = 150 * 6/100 = 15 * 6/10 = 3 * 6/2 = 18/2 = 9

It's correct then :)

3 0

3 years ago

Using all of the following numbers once, 8,8,3,5 how do u get 10

Sveta_85 [38]

Lol this is hard try using multiplication or division...

8 0

3 years ago