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3 years ago

Find the circumference of the circle. Use 3.14 for it. Round to the nearest hundredth, if necessary.

Mathematics

1 answer:

Marrrta [24]3 years ago

8 0

Answer:

The circumference would be about 141.3 inches

Step-by-step explanation:

Place your radius into the formula for circumference (C=2πr)

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Pls I need help !!!!!

anastassius [24]

Answer:

a=8

Step-by-step explanation:

We know that the right triangle has a total angle of 90.

We already have 50 witch means 40 is missing.

The equation given is:

6a-8 but we will upgrade it by the information we have so now it’s 6a-8=40

One of the multiples of 6 is, 6x8=48

Remember that 8 will be taken off.

Solve:

48-8=40 (witch is what we where looking for)

This is further proof that a=8

4 0

3 years ago

Read 2 more answers

Here's my question. A city's sales tax is 7%. Write this percent as a fraction and tell how many cents of tax are on each dollar

Alika [10]

The answer is 7 cents of tax

5 0

3 years ago

Find the area of the shaded region.

Anvisha [2.4K]

Answer:

73.4 cm^2

Step-by-step explanation:

The equation is :

πr^2

Substitute the radius in:

π(5)^2

Solve:

Area of full circle = 25π

(Note : leave this answer in terms of 'pi' so it is easier to handle

Next, find the area of the sector

The equation for this is:

(angle/360) x πr^2

Substitute the values in:

(80/360) x π(5)^2

Solve :

Area of sector = (50/9)π

Now, find the area of the triangle:

1/2 absinC

Substitute the values in:

1/2(5)(5) x sin(80) = 12.31009691

Subtract this answer from the area of the sector

Answer = 5.14319607

Subtract this from the area of the whole circle

Answer = 73.39662073

To the nearest tenth, that would be 73.4 cm^2

Mark brainliest pls

3 0

3 years ago

Convert 140° from degree measure to radians

larisa86 [58]

Answer:

7pi/9

Step-by-step explanation:

140 degrees * (pi/180 degrees) = 7pi/9

3 0

3 years ago

A 15-ft ladder is propped against a vertical wall and makes a 72 ̊ angle with the ground. How far is the foot of the ladder from

murzikaleks [220]

We first approach this problem by illustrating the situation. Refer to the diagram attached.

From the diagram, we can clearly see that we need to simply solve for the length marked x in order to find the distance between the foot of the ladder to the base of the wall.

Remember SOHCAHTOA. We can apply here the concept of cosine since we have the angle. Incorporationg x into the equation, we can simply make use of the relation cosine 72° = adjacent/hypotenuse.

$cos(72deg)= \frac{x}{15}$
$15cos(72deg)=x$
$x=4.6$

ANSWER: The distance between the foot of the ladder and the base of the wall is 4.6 feet.

6 0

3 years ago