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horsena [70]
3 years ago
6

Which expressions are equivalent​

Mathematics
2 answers:
stich3 [128]3 years ago
7 0

Answer:C- 3x - 7y and 3y - 7x

Step-by-step explanation:

seraphim [82]3 years ago
4 0
A) 3x-7y and -7y+3x
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Can someone help me with this 1 math problem. I posted a picture of the question. ​
NeX [460]

Step-by-step explanation:

For conical part: h = 14 in & r = 9 in

For hemispherical part: r = 9 in

V_{prop} = V_{cone} +V_{hemisphere} \\   = \frac{1}{3} \pi {r}^{2} h +  \frac{2}{3} \pi {r}^{3}  \\ =\frac{1}{3} \times 3.14 \times  {9}^{2}  \times 14 +  \frac{2}{3}  \times 3.14 \times  {9}^{3}  \  \\  = 1,186.92 +  2 \times 3.14 \times 243 \\  = 1,186.92 + 1,526.04 \\  = 2,712.96 \:  {inch}^{3}  \\

Another way:

V_{prop} = V_{cone} +V_{hemisphere} \\   = \frac{1}{3} \pi {r}^{2} h +  \frac{2}{3} \pi {r}^{3} \\\\=\frac{1}{3} \pi {r}^{2}(h+2r)\\\\= \frac{1}{3}\times 3.14\times {9}^{2}(14+2\times 9)\\\\= \frac{1}{3}\times 3.14\times 81(14+18)\\\\=  3.14\times 27\times 32\\\\= 2,712.96\: {inch} ^3

4 0
3 years ago
Which three angles with the given measures can be used to construct at least one triangle? 40°,20°,40° 45°,45°,45° 23°,23°,134°
goldenfox [79]
D is the answer  :) hope this helped
3 0
2 years ago
Read 2 more answers
Sarah ran 2 miles and Jaime ran 15, 840 feet. How many miles did they run together? (The conversion factor is 5280 feet/mile.)
Korvikt [17]

Answer:

C. 5 miles

Step-by-step explanation:

Since we need to find how many miles they ran together, let us convert feet to miles. Sarah's length is already in miles so we'll leave it that way.

Jaime ran 15840 feet. We are given how many feet are there in one mile (5280), so we need to find how many miles are there in 15840 feet.

x = 15840 / 5280 = 3 miles.

So, Jaime ran 3 miles and Sarah ran 2 miles.

That means that together they ran 3 + 2 = 5 miles.

6 0
3 years ago
Sean lives 0.5 miles from the store. The store is 0.25 miles from his grandmothers house.sean is going to walktothe store and th
goldfiish [28.3K]

Answer:

0.75

Step-by-step explanation:

<em>if you add  0.25 and 0.5 you get 0.75</em>

<em> 0.25</em>

+0.50

______

0.75

5 0
3 years ago
Please help with this my please
Akimi4 [234]

Answer:

now i dont know if this is the thing your asking but a negative plus a negative is a positive.

3 0
3 years ago
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