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3 years ago

Please help! It's a grade nine math question.

Mathematics

2 answers:

mash [69]3 years ago

8 0

Answer:

Step-by-step explanation:

Area of the Square

Area = s^2

s = 16

Area = 16 * 16

Area = 256

Area of the Circle.

Area of the Circle = pi*r^2

16 inches is a diameter for the circle.

2r = d

r is the radius

d is the diameter = 16

2r = 16 Divide by 2

2r/2 = 16/2 Do the division

r = 8

Area of the circle = pi*r^2

Area of the circle = 3.14*8^2

Area of the circle = 200.96 cm^2

Area of the shaded area

Area of the shaded area =area of the square - area of the circle

Area of the shaded area = 256 - 200.96

Area of the shaded area = 55.04

Jobisdone [24]3 years ago

5 0

Is that all the info they gave you? Idk how to work with it

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7968 divided by 22 estimating

Anvisha [2.4K]

Answer:

363

Step-by-step explanation:

7 0

2 years ago

Can someone do #1 and #2 I don't really get the answer. My teacher hasn't explain anything. He just gave us the paper and we got

Elenna [48]

1) f(x) + g(x)

= 7√x + 4 + 2√x - 2

= √x(7 + 2) + 2

= 9√x + 2 [ Final Answer ]

2) f(x) - g(x)

= 7√x + 4 - (2√x - 2)

= 7√x + 4 - 2√x + 2

= √x(7 - 2) + 6

= 5√x + 6 [ Final Answer ]

Hope this helps!

5 0

3 years ago

Emily has 7 cups of water in a jug.If she drinks 2/3 of a cup every hour.How long would it take her to drink the whole jug

zepelin [54]

It would take her 10.5 hours to drink the whole jug.

Step-by-step explanation:

Given,

Cups of water in jug = 7

Water drunk every hour = $\frac{2}{3}$ of cup

Let,

x be the number of hours.

According to given statement;

$\frac{2}{3}x=7$

Multiplying both sides by $\frac{3}{2}$

$\frac{3}{2}*\frac{2}{3}x=7*\frac{3}{2}\\x=\frac{21}{2}\\x=10.5$

It would take her 10.5 hours to drink the whole jug.

Keywords: fractions, multiplication

Learn more about fractions at:

#LearnwithBrainly

8 0

3 years ago

Which term in the quotient of this expression contains an error?

Savatey [412]

Answer:

The + 78 :- it should be + 60.

Step-by-step explanation:

Long division:-

x - 3 )4x^4 - 6x^3 + 0x^2 + 6x + 3 ( 4x^3 + 6x^2 + 18x + 60 <--- Quotient.

4x^4 - 12x^3

6x^3 + 0x^2

6x^2 - 18x^2

18x^2 + 6x

18x^2 - 54x

60x + 3

60x - 180

183

7 0

3 years ago

Carla's team won 3 of its 5 games. Elena's team won games at the same rate and won 12 games. How many games did Elena's team pla

Maurinko [17]

This is all about proportions. You can make this into fractions:

3/5 = 12/x

A good way to handle this, is to make one of those numbers the same. If you do (3/5) * 4, you would get 12/20 (because 4 * 3 = 12 and 4 * 5 = 20)

So then you have this:

12/20 = 12/x

It's basically a fill in the blank from there. x= 20

Elena's team played 20 games

4 0

3 years ago

Read 2 more answers