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Karo-lina-s [1.5K]
3 years ago
8

ON B ONLY (7th grade math) please help!!!

Mathematics
1 answer:
Alexxx [7]3 years ago
4 0

Answer:

I think 3 I dont know for sure because I did t do this in 7th grade

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The volume of a cone is 196π ft ^3 . It's radius is 7 ft. Find the height.
Free_Kalibri [48]

Answer:

the height is about 12

Step-by-step explanation:

plug into the equation V=\pi r^{2}\frac{h}{3}

4 0
3 years ago
Refer to the image i couldnt copy it so the image is the quesstion<br><br> answer in true or false
Irina18 [472]

The sign of "b" on the numerator should be negative. So we conclude that the correct option is false.

<h3>Is the equation in the image correct or incorrect?</h3>

For a quadratic equation of the form:

y = a*x^2 + b*x + c

By using the Bhaskara's formula, the solutions of the equation:

0 = a*x^2 + b*x + c

Are given by the formula:

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

Notice that the sign of the first term on the numerator should be negative, while on the image it is positive.

So the equation shown in the image is incorrect.

If you want to learn more about quadratic equations:

brainly.com/question/1214333

#SPJ1

6 0
2 years ago
Solve algebraically<br> y=x^2 + 2x<br> y=3x+20
Zina [86]
This one looks very tricky but ill try it out
5 0
3 years ago
Read 2 more answers
What type of angle is formed by the base of a triangle and the segment you measure to find the height?
lesya692 [45]

Answer:

You get a 90 degree angle also known as the altitude of the triangle

Step-by-step explanation:

3 0
3 years ago
A painting is shaped like a golden rectangle. It's length is 24 cm. What is the paintings width to the nearest tenth of a cm?
olya-2409 [2.1K]
It depends if 24cm is the long dimension or the short one...it's the answer if 24cm is the short dim.
if 24cm is the long dimension then the answer is
24/1.618
6 0
4 years ago
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