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likoan [24]
3 years ago
15

4x – 4 = – 12 X = ? What is X ?

Mathematics
2 answers:
maxonik [38]3 years ago
8 0

Answer:

X=-2

Step-by-step explanation:

4x-4=-12

Add 4 on both sides

+4 +4

4x=-8

Divide by 4 on both sides

÷4 ÷4

X=-2

ArbitrLikvidat [17]3 years ago
5 0

Answer:

-2

Step-by-step explanation:

4x-4=-12

4x=-12+4

4x=-8

x=-8/4

x=-2

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H+p=4(k−7) for k please answer
dmitriy555 [2]

Answer:

(28 + h + p)/4 = k

Step-by-step explanation:

Step 1: Write equation

h + p = 4(k - 7)

Step 2: Solve for <em>k</em>

<u>Distribute 4:</u> h + p = 4k - 28

<u>Add 28 to both sides:</u> 28 + h + p = 4k

<u>Divide both sides by 4:</u> (28 + h + p)/4 = k

3 0
3 years ago
Tom throws a ball into the air. The ball travels on a parabolic path represented by the equation , where represents the height o
tigry1 [53]

Answer:

2.5 second

Step-by-step explanation:

The equation is missing in the question.

The equation is,  h=-8t^2+40t  , where 'h' is the height and 't' is time measured in second.

Now we know to reach its maximum height, h in t seconds, the derivative of h with respect to time t is given by :

\frac{dh}{dt} =0

Now the differentiating the equation with respect to time t, we get

\frac{dh}{dt}=\frac{d}{dt}(-8t^2+40t)

\frac{dh}{dt}=-16t+40

For maximum height,  \frac{dh}{dt} =0

So, -16t+40=0

 \Rightarrow 16t=40

\Rightarrow t=\frac{40}{16}

\Rightarrrow t = 2.5

Therefore, the ball takes 2.5 seconds time to reach the maximum height.

7 0
3 years ago
Need help asap plz ​
stepladder [879]

Answer:

Step-by-step explanation:

1.

sum > 8 or 9,10,11,12

events sum >8 are 36,45,54,63,46,55,64,56,65,66

no. of events=10

p=10/36=5/18

2.

P=291/2237

3.

p=\frac{1}{8}*\frac{4}{8}=\frac{1}{16}

4.

a.

P=5/246

b.

p=208/246=104/123

5.

             yes     no       total

student   56     42         98

teacher     3        7         10

total         59     49        108

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3 years ago
Create a set of data with 7 values that has a mean of 30, a median of 26, a range of 50, and an interquartile range of 36.
kotykmax [81]

5, 10, 23, 26, 45, 46, 55

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3 years ago
Write an expression for the sequence of operations described below.
Triss [41]

Answer:

(h+g)=n➗2 is the answer. happy to help you

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