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lana [24]
3 years ago
7

Please help me with this one

Mathematics
2 answers:
Zina [86]3 years ago
8 0

\huge\boxed{\mathfrak{Answer}}

l = 5 \: cm \\ w = 2 \: cm \\ h = 7 \: cm

The formula to find SA => 2lh + 2lw + 2hw

SA => 2lh + 2lw + 2hw \\  = 2 \times 5 \times 7 + 2 \times 5 \times 2 + 2 \times 7 \times 2 \\  = 70 + 20 + 28 \\  = 118  \: \: cm {}^{2}

=> The surface area of the rectangular prism is <u>1</u><u>1</u><u>8</u><u> </u><u>cm²</u><u>.</u>

Alex73 [517]3 years ago
3 0

Answer:

2×5×7+2×5×2+2×7×2

70+20+28

108cm^2

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Scilla [17]

Answer:

x = 23.125°

Step-by-step explanation:

∠ACF = ∠GCB (vertically opposite angles)

3x + 5x - 5 = 180° (angles on a straight line are supplementary)

8x = 185°

x = 23.125°

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6 0
3 years ago
An artist is designing a kite like the one show below. Calculate the area to determine how much material she will need to create
horrorfan [7]
Hi there!

The formula for the area of a kite is A = 1/2(d1 * d2). The diagonals on your kite are 20 inches and 19 inches. Let's plug those numbers into the formula: A = 1/2(20*19). First, multiply inside of the parenthesis: A = 1/2(380). Lastly, divide 380 by 2: A = 190in^2.

Hope this helps!! :)
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5 0
3 years ago
Read 2 more answers
How these question will get solve ? Please help.
nlexa [21]
Ok so look

we have
2√3+3√3-4√3
easy
remember taht 2√3 means 2 times √3 or √3+√3
it tells how many of that
so just add the numbers
2+3-4=1
1√3 or √3 is answer




2.
first simplfy each radical

5√32=5(√16)(√2)=5(4)(√2)=20√2
2√50=2(√25)(√2)=2(5)(√2)=10√2
now we have
20√2+10√2
just add
30√2



1. √3
2. 30√2

4 0
3 years ago
Help pleaseeeeeeeeeeeeee
Firdavs [7]

Answer:

5

Step-by-step explanation:

A = (base x height)/2

1) multiply by 2

A x 2 = base x height

2) divide by the base

height = (A x 2)/base

h = (20 x 2)/8 = 5

8 0
3 years ago
Read 2 more answers
3. Kylie has 14 polished stones. Her friend
AfilCa [17]
Answer: 14 + 6 = 20

Explanation:
She has 14 stones to start with. Her friend gives 6 stones. She now has a total of 20 stones.
3 0
3 years ago
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