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3 years ago

A driving moving at 22m/s stops the car in 2s. find the stopping distance

Mathematics

1 answer:

Kaylis [27]3 years ago

8 0

Step-by-step explanation:

Hey there!

Here,

Speed = 22m/s

Time = 2 s.

Distance = ?

We have;

$d = s \times t$

$d = \frac{22m}{s} \times 2 \: s$

Cancel "s" and multiply 22 to 2 ,we will get;

Distance = 44m.

Therefore, distance = 22m.

Hope it helps..

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-16-4 = ? 4.? = 4. So, -16-4=

PIT_PIT [208]

Answer:

It's -16-4

Step-by-step explanation:

Therefore its negative mins a neg so its like a debt mins a debt so it remains a debt.

Therefore its- 20

Plzzz brainlest

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If RS=3x + 1, ST= 2x - 2, and RT=64 find the value of x

Ulleksa [173]

For this question, we can assume that RS + ST = RT. So now, we just have to plug in the expressions for these lengths, and solve the equation.

(3x+1) + (2x-2) = 64

Because we are only dealing with one operation, the parentheses aren't necessary.

3x + 1 + 2x - 2 = 64

Next, we should combine like terms on the left side of the equation. We know that 3x + 2x = 5x, and that 1 - 2 = -1.

5x - 1 = 64

The goal of an equation is to get the variable alone. To do this, we have to get rid of the -1 on the left side of the equation. So, we are going to add 1 to both sides of the equation, to cancel out the -1 on the left side.

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Finally, we are going to divide both sides by 5, as this is the inverse operation of multiplication, which is how the 5 and the x are connected.

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Therefore, the value of x is 13.

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3 years ago

The median of the marks 10, 13, 3x-1, 3x+1, 18, 18 arranged in ascending order is

Lorico [155]

Answer:

a. Marks = 10, 13, 14, 16, 18, 18

b. mode = 18

c. Range = 8

Step-by-step explanation:

==>Given the following data set arranged in ascending order:

10, 13, 3x-1, 3x+1, 18, 18

Median = 15

==>Required:

a. Marks:

To get each marks, let's find the value of x since we know median to be 15.

10, 13, [3x-1, 3x+1], 18, 18

Our median in this even number of data set would be the average of the 2 middle values which would give us 15.

Thus, we have:

[(3x-1) + (3x+1)] ÷ 2 = 15

[3x-1 + 3x+1] ÷ 2 = 15

[3x+3x-1+1] ÷ 2 = 15

6x/2 = 15

Multiply 2 by both sides

6x = 30

Divide 6 by both sides

x = 5

Now let's plug in the value of x to get out marks:

10, 13, 3(5)-1, 3(5)+1, 18, 18

10, 13, 14, 16, 18, 18

b. Mode is the most appeared data value, which is 18

c. Range is the difference between the highest and lowest value = 18 - 10 = 8

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3 years ago

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Let's solve your equation step-by-step.
4x^2+28x−32=0
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Step 2: Set factors equal to 0.
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