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notsponge [240]
3 years ago
14

Evaluate a+4 when a=7

Mathematics
2 answers:
slavikrds [6]3 years ago
5 0

Answer:

11

Step-by-step explanation:

Sub in 7 for a

olga nikolaevna [1]3 years ago
4 0

Answer:

11

Step-by-step explanation:

a+4

Let a=7

7+4

11

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Divide.
serious [3.7K]

Answer:

1.36 for the first one

1.875 for the second one

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0.5 repeating for the fourth one

0.3 for the fifth one

Step-by-step explanation:

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A tornado is located between city hall and a cell phone tower and is heading towards the cell phone tower. By what angle does th
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Step-by-step explanation:

you provided insufficient details to answer

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(4k – 2) (k + 4)<br> O 44² + 14k - 8<br> O 4K² - 8<br> O 5k + 2<br> 0 42² + 16k - 8
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Answer:

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Step-by-step explanation:

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3 years ago
A rocket is launched from atop a 65-foot cliff with an initial velocity of 113 ft/s. The height of the rocket above the ground a
OlgaM077 [116]

Answer:

7.6 seconds

Step-by-step explanation:

To solve this problem we can use the following equation:

S = So + 113*t + at^2/2

Where S is the final position, So is the inicial position, Vo is the inicial speed, a is the acceleration and t is the time.

In this problem, we have that S = 0, So = 65, Vo = 113 and a = -32 ft/s2 (The acceleration of gravity)

So we have that:

0 = 65 + 113t - 16t2

16t2 - 113t - 65 = 0

Using Bhaskara's formula, we have:

Delta = 113^2 + 4*65*16 = 16929

sqrt(Delta) = 130.11

t = (113 + 130.11) / (2*16) = 7.597 seconds

Rounding to nearest tenth, we have t = 7.6 seconds

7 0
3 years ago
What would 526 ÷by 2 be
spayn [35]
Just divide it by two. That just means half of 526, which is 263.
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3 years ago
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