MATHEMATICS
MIDDLE SCHOOL

Answer: This is an imaginary number = sqrt105 * i = 10i ro nearest integer

MIDDLE SCHOOL

Which is equivalent to the expression? 4(x + 5) + 4x + 8 A) 4(2x + 7) B) 5x + 17 C) 8(x + 4) D) 8x + 13

Answer:

A) 4(2x + 7) is your answer.

Step-by-step explanation:

Distribute 4 to all terms within the first parenthesis.

4(x + 5) = 4x + 20

4x + 20 + 4x + 8

Simplify. Combine like terms.

4x + 4x + 20 + 8

8x + 28

A) 4(2x + 7) is your answer.

Simplify. Distribute 4 to all terms within the parenthesis

4(2x) = 8x

4(7) = 28

8x + 28 = 8x + 28 ∴ 4(x + 5) + 4x + 8 = 4(2x + 7)

~

Answer:

The correct option is A) 4(2x + 7).

Step-by-step explanation:

Consider the provided expression.

4(x + 5) + 4x + 8

Apply the distributive property:

4(x + 5) + 4x + 8 = 4x + 20 + 4x + 8

Now add the like terms.

8x + 28

The above expression can be written as:

4 × 2x + 4 × 7

4(2x + 7)

Hence, the correct option is A) 4(2x + 7).

HIGH SCHOOL

If your score on your next statistics test is converted to a z? score, which of these z scores would you? prefer: minus??2.00, minus??1.00, ?0, 1.00,? 2.00? why?

The 2.00 because the standard deviation 2.00 is directly above the mean and correspond to highest of five different likely test scores. A z score or the standard value is the number of standard deviations that a given value x is above or below the mean. A negative z score corresponds to an x value less than the mean. A positive z score corresponds to an x value greater than the mean. The more negative the z score the further the x value is below the mean. The more positive the z score the further the x value is above the mean.

MIDDLE SCHOOL

What is 70.49 divided by 19?

Answer:

3.71

Step-by-step explanation:

We are asked to divide 70.49 by 19.

We know that 19 times 3 is equal to 57 and 19 times 4 is 76, so 19 will go in 70 for 3 times and give a remainder of 13.

9)70.49( 3

57

13

Now, we will bring down 4. To do so we need to put a decimal in quotient as:

9)70.49( 3.71

57

134

133

19

19

0

Therefore, 70.49 divided by 19 is equal to 3.71.

When you do 70.43/19 you should be getting the answer of 3.71 and I know this is right because I used the calculator

MIDDLE SCHOOL

Translate "the product of k and -3" into an algebraic expression.

-3k is the answer. -3 * k is an answer but it is not simplified. The simplified version is -3k.

Answer:ee

Step-by-step explanation:

The product of k and -3

= -3 × k

= -3k

HIGH SCHOOL

An inelastic collision occurs between a large truck and smaller sedan. Calculate the final velocity of the objects and explain the direction they will be traveling with the following data from before the collision: Small sedan mass = 1300 kg initial velocity = 20 m/s Truck mass = 7100 kg Initial Velocity 15 m/s

The final velocity is 15.8 m/s in the forward direction

Step-by-step explanation:

An inelastic collision occurs when the two object after the collision stick together.

In any case, the total momentum of the system is conserved before and after the collision, in absence of external forces. Therefore, we can write:

where in this problem:

m = 1300 kg is the mass of the small sedan

u = 20 m/s is the initial velocity of the small sedan

M = 7100 kg is the mass of the truck

U = 15 m/s is the initial velocity of the truck

v is the final combined velocity of the small sedan + truck

Here we have taken both the velocity of the sedan and the truck in the positive (forward) direction

Solving the equation for v, we find the final velocity:

And since the sign is positive, this means that is direction is the same as the initial direction of the sedan and the truck, so forward.

Learn more about collisions:

brainly.com/question/13966693#

brainly.com/question/6439920

#LearnwithBrainly

HIGH SCHOOL

Ok so i have 550 pieces of candy to pass out and every 5 mins i hand out 20 pieces, after 25 min how many do i have?? how would i find the answer?

550-100=450 left 20*5=100 pieces passed out in 25mins

I would first figure out how many pieces are being handed out per minute. 20 pieces divided by every 5 minutes equals 4 pieces every minute. 4 pieces every minute for 25 minutes is 100 pieces. Subtract 100 pieces from your original 550 pieces and you have 450 pieces left.

HIGH SCHOOL

What is –36° converted to radians? -5

-5/

-/5

-1/5

let's recall that there are 180° in π radians, thus

MIDDLE SCHOOL

The property that allows you to multiply the exponents in (x^a)^b to get x^ab, is called the ____ of a power property.

Answer:

The answer is: Power

Step-by-step explanation:

COLLEGE

Ok what is 84% of 311?

It would be: 311*84 / 100 = 311 * 0.84 = 261.24

So, your answer is 261.24

So, your answer is 261.24

84\100 x 311

84 x 311=26124\100

answer=261.24

84 x 311=26124\100

answer=261.24