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3 years ago

5. Chloe has 20 unit cubes How many different rectangular prisms can she build with the cubes?

Mathematics

1 answer:

professor190 [17]3 years ago

8 0

The answer is C. 10 because you only need 2 unit cubes to make a rectangular prism

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A jet plane carry up to 200,000 liters of fuel. It used 130,000 of fuel during the flight what is the %

S_A_V [24]

Answer:

65%

Step-by-step explanation:

Given that,

Total fuel = 200000 L

Used fuel = 130,000 L

We need to find the percentage of the used fuel. It can be given by :

$\%=\dfrac{130,000}{200000}\times 100\\\\=65\%$

So, the required percentage is 65%.

8 0

3 years ago

What percent of 950 is 2

Dima020 [189]

Answer: 0.21%

Step-by-step explanation: Please mark me brainlist

Step 1: We make the assumption that 950 is 100% since it is our output value.

Step 2: We next represent the value we seek with x

Step 3: From step 1, it follows that 100% = 950

Step 4: In the same vein x% = 2

Step 5: This gives us a pair of simple equations: 100% = 950(1)

x% = 2(2)
Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have
100%/x% = 950/2

Step 7: Taking the inverse (or reciprocal) of both sides yields
x%/100%/ 2/950
---> 0.21%

6 0

2 years ago

Find the sum and express it in simplest form (-b-5x-3)+(2b-4x+7)

vovikov84 [41]

-b - 5x - 3 + 2b - 4x + 7....combine like terms
b - 9x + 4 <==

6 0

3 years ago

Read 2 more answers

PLZZZZZZZZZZ HELPPPPPPPPPPPPPP!!!!!

Julli [10]

Answer:

= 7

Step-by-step explanation:

get it right! hope you get it right!\

5 0

3 years ago

Read 2 more answers

If a = 7 and b = 11, what is the measure of ∠B? (round to the nearest tenth of a degree) A) 32.5° B) 39.2° C) 50.5° D) 57.5°

Ilia_Sergeevich [38]

Answer:

D) 57.5°

Step-by-step explanation:

As the question is not complete. So, let's suppose it is a right angle triangle then, we can apply Pythagoras theorem to calculate the hypotenuse or the third side.

Pythagoras Theorem = $c^{2}$ = $a^{2} + b^{2}$

a = 7 and b = 11

$a^{2}$ = 49

$b^{2}$ = 121

Plugging in the values, we will get:

$c^{2}$ = 49 + 121

$c^{2}$ = 170

c = $\sqrt{170}$

To calculate the unknown angle B, we can use law of sine.

Law of sine = $\frac{a}{sinA}$ = $\frac{b}{sinB}$ = $\frac{c}{sinC}$

So,

$\frac{c}{sinC}$ = $\frac{b}{sinB}$

$\frac{\sqrt{170} }{sin90}$ = $\frac{11}{sinB}$

Sin90 = 1

sinB = $\frac{11}{\sqrt{170} }$

B = $sin^{-1}$ ( $\frac{11}{\sqrt{170} }$ )

B = 57.5°

8 0

3 years ago