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1 year ago

Round your answer to the nearest hundredth.

Mathematics

1 answer:

LekaFEV [45]1 year ago

7 0

Answer:

10.99

Step-by-step explanation:

$tan20 = \frac{ac}{bc} \\ bc = \frac{ac}{tan20} \\ = \frac{4}{tan20} \\ = 10.99$

where you see tan20 the 20 has a degree sign on top

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Simplify the expression 3a + b, when a=1.4 -2x and b=-0.2x + 1.7*

kenny6666 [7]

Answer:5.9-6.2x

Step-by-step explanation:

a=1.4-2x

b=-0.2x+1.7

3a+b

=3(1.4-2x)+(-0.2x+1.7)

=4.2-6x-0.2x+1.7

=4.2+1.7-6x-0.2x

=5.9-6.2x

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3 years ago

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Please answer the question from the attachment.

Mars2501 [29]

We have to calculate the pizza´s area.
r=radius
Area (circle)=π*r²
diameter=30 cm
radius=diameter/2=30 cm/2=15 cm

Area(pizza)=π*(15 cm)²=225π cm²≈706.86 cm².

solution: 706.86 cm²

3 0

3 years ago

Please help. Will give brainliest! No links or your account will be a banned

Firdavs [7]

Answer:

1. 18

2. -8

3. 1

4. 84

Step-by-step explanation:

hope this helps! :D

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1 year ago

Can someone please help me with this problem!

Anna71 [15]

Answer:

11 yards

Step-by-step explanation:

The volume of a cone formula is:

$V=\frac{1}{3}\pi r^2 h$

Where V is the volume,

r is the radius (half of diameter)

h is the height

Given,

h = 15

V = 475.17

We find the radius (r) first by substituting given values:

$V=\frac{1}{3}\pi r^2 h\\475.17=\frac{1}{3}\pi r^2 (15)\\475.17=5\pi r^2\\r^2=30.25\\r=5.5$

The radius (r) is 5.5 yards

We need the diameter, which is DOUBLE THE RADIUS, so diameter would be:

Diameter = 5.5 * 2 = 11 yards

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2 years ago

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zubka84 [21]

Answer:

v= -12

Step-by-step explanation:

v= -12

v = -29+17

v= -12

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2 years ago

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