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BaLLatris [955]
3 years ago
5

In March, Delphine's house had 40 percent more snowfall than in February. Delphine's house had f centimeters of snowfall in Febr

uary.
Which of the following expressions could represent how much snowfall Delphine had at her house in March?
Choose 2 answers:
A. 40f
B. 40+f
C. 1.4f
D. 40f+f
E. 4/10f + f
Mathematics
2 answers:
Elenna [48]3 years ago
7 0

Answer:

options C and E are correct

Step-by-step explanation:

Firlakuza [10]3 years ago
3 0

Answer:

d

Step-by-step explanation:

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What is the area of the sector with a central angle of 97 degrees and a diameter of 10cm
vampirchik [111]

Answer:

21. 162 (rounded to nearest thousandth)

Step-by-step explanation:

Area of a sector: (degree/360) (pi*radius^2)

degree given= 97

radius= diameter/2 = 5

(97/360) (pi*5^2)

(97/360) (pi*25) = 21.16211718

4 0
3 years ago
Someone help me with my math homework pleaseee. Find the volumes of the pyramids and the height is 7cm for the first one.
gregori [183]
\bf \textit{volume of a pyramid}\\\\
V=\cfrac{1}{3}Bh\qquad 
\begin{cases}
B=\textit{area of the base}\\
h=height
\end{cases}

now, the first one, on the far-left.... can't see the height.. but I gather you do, now as far as its Base area, well, the bottom is just a 12x12 square, so the area of its base is just 12*12


now, the middle pyramid, has a height of 6, the base is also a square, 8x8, so the Base area is just 8*8

now the last one on the far-right

has a height of 8, the Base is a Hexagon, with sides of 6

\bf \textit{area of a regular polygon}\\\\
A=\cfrac{1}{4}ns^2cot\left( \frac{180}{n} \right)\qquad 
\begin{cases}
n=\textit{number of sides}\\
s=\textit{length of one side}\\
\frac{180}{n}=\textit{angle in degrees}\\
----------\\
n=6\\
s=6
\end{cases}\\\\\\ A=\cfrac{1}{4}\cdot 6\cdot 6^2\cdot cot\left( \frac{180}{6} \right)
5 0
3 years ago
Kaitlyn is walking on a treadmill at a constant pace for 28 minutes. She has programmed the treadmill for a 2-mile walk. The dis
maw [93]
Is this multiplying or what??? Anyways try calculating those numbers so basically you need to calculate 28x2 or if you have to divide them or multiply them you would get the answer is very simple
6 0
3 years ago
Need help please!<br> Asap!
docker41 [41]

Answer:

deese nots

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
SOMEONE HELP MEEEEE ON THE 3 questionssss<br> Will mark brainliest!!!
Gnesinka [82]

Answer:

Question 7

Answer : 1200 inches squared

Question: 8

Answer: 84 centimeters squared

Question: 9

Answer: 2304 feet squared

Step-by-step explanation:

1) Q7: Parallelogram

A=BH

base 30 inch X height 40 inch = 1200 inches squared

2) Q8: Rhombus

A=pq /2

Multiply the two diagonals then divide by 2

Diagonals 14 cent X Diagonal 12 cent divided by 2 = 84 centimeters squared

3) Q9: Trapezoid

A= (B1+B2)H/2

Add the two bases  times the height divide by 2

gives you:

2304 feet squared

3 0
3 years ago
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