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kramer
3 years ago
15

I will mark you as brainliest !!!!

Mathematics
1 answer:
Lynna [10]3 years ago
3 0

Answer:

B,C

Step-by-step explanation:

x^2+3x-6=0\\\frac{-b+\sqrt{b^2-4ac}}{2a},\frac{-b-\sqrt{b^2-4ac}}{2a}\\\frac{-3+\sqrt{3^2-4*1*(-6)}}{2*1},\frac{-3-\sqrt{3^2-4*1*(-6)}}{2*1}\\\frac{-3+\sqrt{9+24}}{2},\frac{-3-\sqrt{9+24}}{2}\\\\\frac{-3+\sqrt{33}}{2},\frac{-3-\sqrt{33}}{2}\\The answer must be B and C.

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Does anybody know this?Find the area of the regular polygon
sweet [91]

Answer:

<h2>2,268 square units</h2>

Step-by-step explanation:

Step 1

Find the area of 1 Triangle

To find this, we will use this formula:

A=\frac{1}{2} *B*H

Let's use the formula!

A=\frac{1}{2} *14*27\\=\frac{1}{2}* 378\\=189

<em>The area of 1 triangle is 189 square units</em>

<em></em>

Step 2

Find the area of the whole intire shape by multiplying the area of 1 triangle with the amount of sides.

There are 12 sides, so let's multiply 189 by 12

189x12=2268

<h2>Hence, the area of the regular polygon is 2,268 square units</h2>
4 0
2 years ago
(Picture Included) could someone give me the answers to #6?
Aliun [14]
1/6 I think i might be wrong
7 0
3 years ago
Read 2 more answers
3 4/7 minus 2 1/5 by rounding to the nearest half
mylen [45]

Answer:

1 \frac{13}{35}

Step-by-step explanation:

3 \frac{4}{7} -  2 \frac{1}{5}

you can solve for the fractions first, but you have to give them a common denominator

\frac{20}{35}- \frac{7}{35}

= \frac{13}{35} which is in simplest form

then solve for the whole numbers

3-2=1

therefore, the answer is 1 \frac{13}{35}

6 0
3 years ago
What is the area of this face?
SSSSS [86.1K]

Answer:

Hello! answer: 180

Step-by-step explanation:

what I did to find answer is cut them into pieces I cut the m into 3 pieces and now just have to multiply my base x height so for the left one I did 12 x 6 = 72 for the middle I did 6 x 6 = 36 and for the right one I did 12 x 6 = 72 I add these up so...

72 + 36 + 72 = 180 so the surface area is 180! I hope this helps!

4 0
3 years ago
I need help plz plz plz
Katena32 [7]
Your answer to this question is B
3 0
3 years ago
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