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3 years ago

What would x equal? Please help

Mathematics

1 answer:

lakkis [162]3 years ago

6 0

23*2 = 46

5x-4 =46

5x = 50

x = 50/5 = 10

x = 10

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What is the value of the expression?

Llana [10]

Answer: -9

(-3) ³= -27

6 ³/12 = 216/12 = 18
-27+18=-9

6 0

4 years ago

What is 350987 x 80000 - 43000 +98

Ipatiy [6.2K]

Answer:

28078916902

Step-by-step explanation:

350987 x 80000

28078960000- 43000

28078917000- 98

28078916902

3 0

3 years ago

A football team has a squad of 24 players,

lora16 [44]

Answer: 1/3

Explanation:

1/12 of the squad are suspended:

1/12 x 24 = 24/12 = 2

So 2 player are suspended

24 - 2 = 22 player

And some are injured leaving 14 left to play:

22 - 14 = 8 players injured

So 8/24 is the fraction of injured player.

But 8/24 = 1/3 so we can say 1/3 of the whole squad are injured.

4 0

3 years ago

Read 2 more answers

What does this mean expand 3(x+4)

finlep [7]

Answer:

3x+12

Step-by-step explanation:

Expanding is basically the opposite of simplifying an equation, in order to expand you just multiply everything out

Here we have

$3(x+4)$

which just means

$3*(x+4)$

which is

$3*x+3*4\\=3x+12$

6 0

3 years ago

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th

IgorC [24]

Answer:

$9.99\text{secs}$

Explanation:

Here, we want to find the time the rocket will hit the ground

What we have to do is to substitute 0 for the height of the rocket y and solve the quadratic equation that results

That simply means we are solving for:

$0=-16x^2+149x+108$

We can use the quadratic formula to solve this

$x\text{ = }\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}$

where a is the coefficient of x^2 which is -16

b is the coefficient of x which is 149

c is the last number which is 108

Substituting the values, we have it that:

$\begin{gathered} x\text{ = }\frac{-149\pm\sqrt[]{149^2-4(-16)(108)}}{2(-16)} \\ \\ x\text{ = }\frac{-149\pm\sqrt[]{29113}}{-32}\text{ } \\ \\ x\text{ = }\frac{-149-170.625\text{ }}{-32} \\ or\text{ } \\ x\text{ = }\frac{-149_{}+170.625}{-32} \end{gathered}$

Now, we proceed to get the individual x-values:

$\begin{gathered} x\text{ = }\frac{-149-170.625}{-32}\text{ = 9.99 } \\ or \\ x\text{ = }\frac{-149+170.625}{-32}\text{ = -0.68} \end{gathered}$

Since time cannot be negative, we use the first value only

6 0

1 year ago