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Katyanochek1 [597]
2 years ago
11

Can somebody please help me with this true or false algebra 1 question?

Mathematics
1 answer:
MakcuM [25]2 years ago
4 0

I'll help.

The answer to your question is True!!

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Someone please tell me the answers to this please I beg you
Wittaler [7]
1) 216
2) 203
3) 315
4) 256
5) 576
6) 440
7 0
3 years ago
an isosceles triangle has congruent sides of 20cm. the base is 10cm. find the height of the triangle.​
dolphi86 [110]

Answer:

\large\boxed{A_\triangle=25\sqrt{15}\ cm^2}

Step-by-step explanation:

Look at the picture.

The formula of an area of a triangle:

A_\triangle=\dfrac{bh}{2}

<em>b</em><em> - base</em>

<em>h</em><em> - height</em>

<em />

We need a length of a height.

Use the Pythagorean theorem:

leg^2+leg^2=hypotenuse^2

We have:

leg=5,\ leg=h,\ hypotenuse=20

Substitute:

5^2+h^2=20^2

25+h^2=400             <em>subtract 25 from both sides</em>

h^2=375\to h=\sqrt{375}\\\\h=\sqrt{(25)(15)}\\\\h=\sqrt{25}\cdot\sqrt{15}\\\\h=5\sqrt{15}\ cm

Calculate the area:

A_\triangle=\dfrac{(10)(5\sqrt{15})}{2}=\dfrac{50\sqrt{15}}{2}=25\sqrt{15}\ cm^2

8 0
3 years ago
5. Isabella is calculating the interest earned on a deposit of $3,000 in an account that earns 4% simple interest after 6 years.
Anna35 [415]

Answer:

B. 300 dollars is 5he answers

6 0
3 years ago
I have 2 more questions I still need help with sorry about me keep asking questions
algol13
I can't help I don't see a question
4 0
3 years ago
Choose the best unit of measure to find the capacity of a swimming pool.
Marat540 [252]
Well actually depending on the size, if a small one I would use liters, but if a large ones like Olympics I would use kilolitres.
6 0
3 years ago
Read 2 more answers
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