3 years ago

Help Me With 14-17 #Geometry

Mathematics

1 answer:

faust18 [17]3 years ago

8 0

14. a
16. either b or d
17. c or b

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√70 is ________________________ because _________________________ . Choose the best response to fill in the blanks above

snow_tiger [21]

Answer:

$\sqrt{70}$ is<u> Rational</u> because<u> it's a non-perfect square</u>

4 0

3 years ago

One cubic meter of water weighs approximately 2200 pounds. There are 100 cm in one meter. If you have a box-shaped fish tank tha

Diano4ka-milaya [45]

Answer:

158.4 pounds

Step-by-step explanation:

first find the volume of the tank

$V = 30 \times 30 \times 80$

$V = 72000 cm^3$

to convert this to m^3 we know that 1m = 100cm

$V = 72000 cm^3 \times \left(\dfrac{1\,\text{m}}{100\,\text{cm}}\right)^3$

$V = 72000 cm^3 \times \left(\dfrac{1\,\text{m}^3}{100^3\,\text{cm}^3}\right)$

the cm^3 cancel out.

$V = \dfrac{72000}{100^3} m^3$

$V = 0.072\,m^3$

by simply converting the side-lengths to meters beforehand can give you this answer directly:

$V = 0.3 \times 0.3 \times 0.8 = 0.072 m^3$

it is given that 1 meter cube of water weighs about 2200 pounds.

$1\,m^3 = 2200 \,\text{lb}$

multiply both sides with 0.072 to find our answer:

$1\,m^3 \times 0.072 = 2200 \times 0.072 \,\text{lb}$

$0.072\,m^3 = 158.4 \,\text{lb}$

hence the weight of the water in the tank would be 158.4 pounds!

3 0

4 years ago

If m∠9 = 130°, what is m∠4?

Bad White [126]

Answer:

m<9=130 it also equal to 180 so 130-180 makes m<4= 50

6 0

3 years ago

Solve for x with an explanation pls

Tatiana [17]

Answer: 9

Step-by-step explanation:

Use Pythagorean's Theorem for a right triangle.

$a^2+b^2=c^2$

$(\sqrt{63}) ^2+x^2=12^2\\63+x^2=144\\x^2=81\\x=9$

6 0

3 years ago

Read 2 more answers

Okay so there isn’t a square root of -1/125 right?? Like- am I just missing something or..?

Dmitry_Shevchenko [17]

I don’t think so because I’m pretty sure you can not square a negative, the fraction is kinda throwing me off

7 0

2 years ago