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Anna11 [10]
3 years ago
14

Please Help, Due SoonWhat is −1/2 − (−4/5)= x

Mathematics
1 answer:
iren2701 [21]3 years ago
8 0
-1/2+4/5

-2/10 + 8/10= 6/10= 3/5
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Please help with scale factor!!!!!!!! I will mark brainliest if right! Two rectangular prisms have a side scale factor of 1/4. I
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Answer:

  • 1/16
  • 720 cm²

Step-by-step explanation:

Area is the product of two dimensions.

<u>If the scale factor is 1/4, the ratio of the areas will be: </u>

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The smaller prism has a surface are of 45 cm².

<u>The larger prism has a surface area:</u>

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2 years ago
Someone rode 8/4 of a mile how many miles he rode
kodGreya [7K]
He rode 2 miles since 4 can go into eight 2 times

3 0
3 years ago
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2u^2 + v when u=3 and v=7
Mariana [72]

Answer: 25

Step-by-step explanation:

There are two variables which is u and v and is given that u is 3 and v is 7  so input that into the expression and solve.

2(3)^2 + 7      Solve the exponent first

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5 0
3 years ago
LAY
marta [7]

Answer:

A

Step-by-step explanation:

how long is the ball in the air ?

that is the same as asking : after how many seconds will the ball hit the ground (= reach the height of 0) ?

so, that means we need to find the zero solution of h(t).

at what t is h(t) = 0 ?

when at least one of the factors is 0 :

2(-2 - 4t)(2t - 5)

we have 3 factors

2 : can never be 0.

(-2 -4t) : can only be 0 for negative t, which does not make sense in our scenario (we cannot go back in time, only forward).

(2t - 5) : is 0 when 2t = 5 or t = 2.5

so, A is the right answer.

FYI : the starting height (on the hill) is given by t = 0 :

2(-2 - 0)(0 - 5) = 2×-2×-5 = 20 ft

3 0
2 years ago
What is 25% of 10? can someone explain how to do the problem?
Scorpion4ik [409]
25/100 =0.25
10 x 0.25= 2.5
7 0
3 years ago
Read 2 more answers
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