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Ksenya-84 [330]
3 years ago
10

Pleaze answer the question in the pic

Mathematics
1 answer:
olasank [31]3 years ago
8 0
1) √8/2, 2, √7
2) -10, √100, 11.5, √220

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Y= mx + b what is b?
PSYCHO15rus [73]
Y=mx+b is Slope Intercept Form, where m represents the slope and b represents the y-intercept.

The y-intercept is the value of y when x equals 0, and can be visualized on a graph as the point on the line when it crosses the y-axis.
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3 years ago
Find the area of this regular polygon.<br> Round to the nearest tenth.<br> 8.65 mm<br> [? ]mm2
nadezda [96]

Answer:

Actually it's not polygon. it's a nonagon. With r=8.65mm″, the law of cosines gives us side a:

a=√{b²+c²−2bc×cos40°}

a=√{149.645−149.645cos40°}

Area Nonagon = (9/4)a²cos40°

=9/4[149.645−149.645cos40°]cot20°

=336.70125[1−cos(40°)]cot(20°)

Applying an identity for the cos(40°) does not get us very far…

= 336.70125[1−(cos2(20°)−1)]cot(20°)

= 336.70125[2−cos2(20°)]cot(20°)

= 336.70125[2−(1−sin2(20°))]cot(20°)

= 336.70125[1+sin2(20°)]cos(20°)sin(20°)

= 336.70125[cot(20°)+sin(20°)cos(20°)]mm²

3 0
3 years ago
Solve for x in the equation x2 - 4x-9= 29.
alukav5142 [94]

Answer:

I think the first one

Step-by-step explanation:

7 0
3 years ago
How to find volume of a prism
docker41 [41]

Answer:

- HOW TO FIND VOLUME OF PRISM -

1st step - Write the formula for finding the volume of a regular pentagonal prism. The formula is V = [1/2 x 5 x side x apothem] x height of the prism.

2nd step - Find the area of the pentagonal base face. Let's say the length of a side is 6 cm and the length of the apothem is 7 cm.

3rd step - Find the height. Let's say the height of the shape is 10 cm.

4th step - Multiply the area of the pentagonal base face times the height. ...

and last step - State your answer in cubic units.

Step-by-step explanation:

:):):)

5 0
2 years ago
A cylinder with<br> a radius of 2<br> inches and height<br> of 8 inches
Gelneren [198K]

Answer:

V≈100.53

Step-by-step explanation:

V=πr2h=π·22·8≈100.53096

5 0
2 years ago
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