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Pavel [41]
3 years ago
10

Help me with these two questions for brainliest!

Mathematics
1 answer:
Akimi4 [234]3 years ago
5 0
1. Yes.

Since, to be a triangle, the sum of the smallest two sides must be greater than the third side, the triangle can be formed.

3 + 22 > 24



2. This triangle is a right triangle.

180 - 60 - 30 = 90
90 degrees is a right angle.

Hope this helps!
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The base length of a triangle is 8 feet and the height is 4 feet. What is the area of the triangle?
sweet [91]
8x4=32
32 divided by 2 = 16
the answer is 16 square feet

hope this helps :)
3 0
4 years ago
Read 2 more answers
I need help, please I have until 9 p.m. to finish it number 3 homework
sergeinik [125]

Answer:  1/3

<u>Step-by-step explanation:</u>

When adding or subtracting fractions, they must have the same denominator.

\dfrac{5}{9}-\boxed{\dfrac{?}{?}}=\dfrac{12}{54}\\\\\\\dfrac{5}{9}\bigg(\dfrac{6}{6}\bigg)-\boxed{\dfrac{?}{?}}=\dfrac{12}{54}\\\\\\\dfrac{30}{54}-\boxed{\dfrac{?}{?}}=\dfrac{12}{54}\\\\\\\dfrac{30}{54}-\boxed{\dfrac{18}{54}}=\dfrac{12}{54}\\\\\\\text{Simplify}\quad \dfrac{18}{54}\div \dfrac{18}{18}\quad =\large\boxed{\dfrac{1}{3}}

6 0
3 years ago
8. The square of a number decreased by 3 times the number is 28. Find all
Llana [10]
The answer is 7 i think
3 0
3 years ago
Please help!!! Tony wants to build a fence around his rectangular garden that has
scZoUnD [109]

Answer:

22 posts

Step-by-step explanation:

on the side of 20 feet you have 5 fence posts each in including one on each of the corners. On the 35 feet side you would have 8 including the corners, but since the corner posts are done its 6 on each 35 feet side. So you get 5+5+6+6=22

6 0
3 years ago
Find all the zeroes of the equation(with simple steps).
uysha [10]

<u>Answer-</u>

<em>The zeros are, 5,\ -5,\ 4i,\ -4i</em>

<u>Solution-</u>

\Rightarrow -3x^4+27x^2+1200=0

\Rightarrow -3(x^2)^2+27(x^2)+1200=0

Here,

a = -3, b = 27, c = 1200

So,

x^2=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}

=\dfrac{-27\pm \sqrt{-27^2-4\cdot (-3)\cdot 1200}}{2\cdot (-3)}

=\dfrac{-27\pm \sqrt{729+14400}}{-6}

=\dfrac{-27\pm 123}{-6}

=\dfrac{-27+123}{-6},\ \dfrac{-27- 123}{-6}

=\dfrac{96}{-6},\ \dfrac{-150}{-6}

=-16,\ 25

So,

\Rightarrow x^2=25,\ -16

\Rightarrow x=\sqrt{25},\ \sqrt{-16}

\Rightarrow x=5,\ -5,\ 4i,\ -4i

8 0
3 years ago
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