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3 years ago

A baker uses a coffee mug with a diameter of 8cm to cut out circular cookies from a big sheet of cookie dough.

Mathematics

1 answer:

zubka84 [21]3 years ago

8 0

Answer:

The forumula for finding area of the circle is \pi r^2.

Step-by-step explanation:

Let's find the radius of the mug:

r=\frac{d}{2}=\frac{8}{2}=4

Now, we can to express the area of each cookie in terms of pi:

Area= \pi *4^2=16\pi

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Ming kept track of her puppy Sampson's weight gain over a three-month time period. He was six weeks old on November 15 and weigh

Kobotan [32]

Answer:

Sampson gains 3.967 kilograms from November to February.

Step-by-step explanation:

Given:

Actual Weight on November 15 = 2.49 kg

On December 15, he weighed 1020 grams more

Since 1000 grams = 1 kg

Weight on December 15 = 1020 grams = 1.2 kg

Hence Weight gained from November 15 to December 15 = 1.2 kg

On January 15, he had gained another 2200 grams

Weight on January 15 = 2200 grams = 2.2 kg

Hence Weight gained from December 15 to January 15 = 2.2 kg

On February 15, he had only gained 0.567 kilograms.

Weight on February 15 = 0.567 kg

Hence Weight gained from January 15 to February 15 = 2.2 kg

Total weight gained from November to February = Weight gained from November 15 to December 15 + Weight gained from December 15 to January 15 + Weight gained from January 15 to February 15

Total weight gained from November to February = $1.2+2.2+0.567 = 3.967 \ kg$

Hence Sampson gained total weight of 3.967 kg from November to February.

4 0

3 years ago

Write the standard form of the line that passes through the given points. Include your work in your final answer. Type your answ

ZanzabumX [31]

Answer:

y = $\frac{2}{3}$ x+ $\frac{13}{3}$

Step-by-step explanation:

Okay, the first thing to do here is calculate something known as the "slope".

We know two points are ( 1 , 5 ) and ( − 2 , 3 )

The slope is represented by "m" in the standard form: y = mx+b

The slope is also known as the rise over the run, y2-y1/x2-x1 = $\frac{3-5}{-2-1}$ = $\frac{2}{3}$

=> the standard form: y = $\frac{2}{3}$ x+b

Now we have to use the slope, and resubstitute another point to get b

5 = $\frac{2}{3}$ (1) + b

<=> b= 5- $\frac{2}{3}$ = $\frac{13}{3}$

So the equation that model the line is: y = $\frac{2}{3}$ x+ $\frac{13}{3}$

5 0

4 years ago

plant a is 5 centimeters tall and going at the rate of 3 centimeters in a month. plan B is 4 centimeters tall and growing at the

pav-90 [236]

I need more information sorry

3 0

4 years ago

??? Please <br> Which point represents -2 3/8 on the number line?

NikAS [45]

Answer:B

count 2 and ~1/4 back and you get b

3 0

2 years ago

What is the positive solution to the equation 0 = -x2 + 2x + 1?

katrin2010 [14]

Answer:

there is no solution

Step-by-step explanation:

1st switch sides: -x2+2x+1=0

2nd add similar elements: -2x + 2x = 0

1 = 0

Thus, this equation has no solution

hope i helped :)

5 0

4 years ago

Read 2 more answers