All categories

3 years ago

(01.04 MC)Simplify the following expression: (−5)(−3)( 4)

Mathematics

2 answers:

Lemur [1.5K]3 years ago

8 0

Answer:

Step-by-step explanation:

-5(-3) = 15

15(4) =60

PilotLPTM [1.2K]3 years ago

3 0

(01.04 MC)Simplify the following expression: (−5)(−3)( 4)

You might be interested in

I just need the answers for 10 and 12

Fynjy0 [20]

Answer:

10.) y = -5x + 7

12.) y = 3/2x - 8

Step-by-step explanation: Since you have to create a new line that us parallel, the slopes will be equivalent. So the mx value will not change. Now we can plug in the coordinates to find the value of b.

10.)

2 = -5(1) + b.

2 = -5 +b

b = 7

therefore...

y = -5x + 7

12.)

2(-5) = 3(2) + b

-10 = 6 + b

b = -16

therefore...

2y = 3x - 16

simplified:

y = 3/2x - 8

4 0

4 years ago

Abril and Alanis put some money into their money boxes every week. The amounts of money (y), in dollars, in their money boxes af

AnnZ [28]

Answer:

A. 3 weeks, $160

Step-by-step explanation:

If the value of y is same for both then we have equal right sides of equations

50x + 10 = 30x + 70

Solve this for x

50x - 30x = 70 - 10
20x = 60
x = 60/20
x = 3

Find the value of y

y = 50*3 + 10 = 150 + 10 = 160

Correct choice is A

8 0

2 years ago

A university has 31,560 students. In a random sample of 180 students, 12 speak three or more languages. Predict the number of st

kodGreya [7K]

<h3>Hello there!</h3>

Here's the information given to us written out:

- 31560 total students

- 12/180 students speak 3 or more

To solve:

To solve this, use the probability from the survey of 180 students to make a reasonable estimate for the 31560 total students.

12/180 students were able to speak 3 or more languages. This proportion, of 12 students : 180 students can be adjusted.

Just like when simplifying fractions, both sides can have an operation (of multiplication or division) done to it and still be equivalent.

In this case, we want to set the side of total students to be equivalent to 31560 to get the estimated number of students that speak 3 or more languages.

To get the number to multiply both sides by:

31560 / 180 = 175 1/3 = 526/3

Now, carry out the operation - multiply both sides by that number.

12/180 = (12 * 526/3) / (180 * 526/3) = 2104 / 31560

So, out of 31560, using the same probability, around 2104 students would speak 3 or more languages.

Hope this helped!

3 0

4 years ago

The height, h metres, of a particle at time, t seconds is given by the function:

vfiekz [6]

Answer:

It depends on what you are asked to do. See explanation.

Step-by-step explanation:

The height, h metres, of a particle at time, t seconds is given by the function:

h=(14-t)(t-2).

This means that after a given time, we can use this function to find the height of the particle.

For instance after 3 seconds, the height of the particle will be:

$h=(14-3)(3-2)$

This implies that:

$h=11*1=11m$

So after 3 seconds the height of the particle is 11 meters.

6 0

4 years ago

What are the basics of linear equation

denis23 [38]

Answer:

The definition of a linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line. An example of linear equation is y=mx + b.

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers