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2 years ago

PLEASE HELP I WILL MARK YOU BRAINLIEST AND PLEASE SHOW YOUR WORK.

Mathematics

1 answer:

Feliz [49]2 years ago

5 0

Answer:

Part A: 7.58974359 gallons (I don't know if you needed to round so I kept the full number).

Part B: 8.871794872 gallons

Step-by-step explanation:

Part A's Steps:

First Step: 350 - 54 = 296

Second Step: 296 ÷ 39 = 7.58974359 (Round if you need to)

Part B's Steps:

First Step: 296 + 50 = 346

Second Step: 346 ÷ 50 = 8.871794872

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ALICE

Mice21 [21]

Answer:

Step-by-step explanation:

The 7 is in the hundredths place.

6 0

2 years ago

I posted this 2 hours ago can someone pls help?

nikdorinn [45]

Answer:

0.314 gallon is required to cover a circular region with a radius of 40 feet

Step-by-step explanation:

Given

a gallon of paint will cover about 400 square feet in a single coat

To Find:

Number of gallons required to cover a circular region with a radius of 40 feet = ?

Solution:

Step 1: Finding Area of the circular region

The area of the circular region, A = $\pi r^2$

where r is the radius

Now substituting r = 40 , we get

A = $\pi \times 40$

$A = 125.6 ft^2$

Step 2: Finding the number of gallons of paint required

To cover 400 sq feet = 1 gallon

so to cover 1 square feet = $\frac{1}{400}$ gallon

Now to cover 125.6 ft we need

$125.6 \times \frac{1}{400}$

$\frac{125.6}{400}$

=> 0.314 gallon

4 0

2 years ago

For circle O, mCD=125° and m

Burka [1]

CA is a diameter of the circle, so $m\widehat{AC}=180^\circ$ , which means $m\angle AOB=m\angle AOD=m\widehat{AD}=180^\circ-m\widehat{CD}=55^\circ$ . Then $m\boxed{\angle ABO}=90^\circ-55^\circ=35^\circ$ .

This means $m\angle CBO=55^\circ-35^\circ=20^\circ$ . Also, if $m\angle AOB=55^\circ$ , then $m\angle BOC=180^\circ-55^\circ=125^\circ$ , which in turns tells us that $m\boxed{\angle BCO}=180^\circ-20^\circ-125^\circ=35^\circ$ .