What is the value of the expression m2 + 3m when m = 4?
A. 15
B. 18
C. 20
D. 28

\(\text{Solve by plugging 4 to m:}\\\\(4)^2+3(4)\\\\16+3(4)\\\\16+12\\\\28\\\\\boxed{\text{D). 28}}\)

The value of the expression \(m^{2} + 3m\) when m =4 is 21.

An expression is a combination of numbers, variables, functions such as addition, subtraction, multiplication or division etc.

The process of swapping an algebraic letter for its value is called substitution.

According to the given question we have

An expression

\(m^{2} +3m\)

We have to find the value of given expression when m =4, for this substitute the m =4 in the expression \(m^{2} + 3m\)

⇒ \((3)^{2} + 3(4)\)

⇒ 9 + 12 = 21

Hence, the value of \(m^{2} + 3m\) when m =4 is 21.

Learn more about the expression and substitution here:

https://brainly.com/question/14619835

#SPJ2

help me please first to answer will get brainiest

Nile had 20% less strike outs this year than last year. He had 124 strike outs last year. Which steps are needed to calculate the number of strike outs Nile had this year? Check all that apply.


(A) Convert 20% to a decimal.

(B) Multiply: 0.2 × 124 = 24.8

(C) Divide: 124 ÷ 20 = 6.2

(D) Subtract: 124 – 24.8 = 99.2

(E) Add: 124 + 24.8 = 148.8

(F) Subtract: 124 – 6.2 = 117.8

Can 100 percent the considered 1 (in decimal like 1.00?)

John cuts a 19 in. rope into 3 pieces. The first piece is 4 in shorter than the second. The third is 2 less than three times the second. What is the length of the shortest piece?

Pls somebody help me

You have to solve the problem \frac{3}{4}-\frac{1}{8} ​4 ​ ​3 ​​ − ​8 ​ ​1 ​​ . After you make the denominators the same, what do you do? A You subtract the numerators but keep the denominators the same. B You subtract the numerators and you subtract the denominators. C You subtract the denominators but keep the numerators the same. D You subtract the numerator from the denominator, and that becomes the new numerator.

PLEASE HELP WILL MARK BRAINLIEST
Data was collected on the weight, in ounces, of kittens for the first three months after birth. A line of fit was drawn through the scatter plot and had the equation w = 2.75 + 0.2d, where w is the weight of the kitten in ounces and d is the age of the kitten in days.

What is the w-intercept of the line of fit and its meaning in terms of the scenario?

help me PLEASE!

What is the sum of 1/2 + 1/4?

1) 2/8

2) 2/6

3) 4/8

4) 6/8

dont guess pls this is due in 20 minutes

you
work.
Factor each expression. If the expression cannot be factored, write
cannot be factored. Use algebra tiles if needed. (Examples 4,5,6
4. 3x + 6
5. 2x - 15
6.12x+30y

A camper lights an oil lantern at 12 noon and lets it burn continuously. Once the lantern is lit, the lantern burns oil at a constant rate each hour. At 2 p.m., the amount of oil left in
the lantern is 63 ounces. At 5 p.m., the amount of oil left in the lantern is 61 ounces.
Based on the average rate of oil burning per hour, how much oil, in ounces, was in the lantern at 12 noon? Show your work.

Could somebody help w/ this? :>

Which of these numbers are integers? Choose ALL that apply.
-6.3, -1, -1/2 , 0 ,7/4, 29 Thank you♡♡♡

The table shows the results of randomly selecting a colored cube from a bag 80 times. The cube was returned to the bag after each selection.

Based on these results, what is the expected probability of randomly selecting a red cube from the bag in one attempt?

A) 0.20
B) 0.04
C) 0.24
D) 0.30

Easy math question, earn points! Quickest answer gets points.

English is the predominant language spoken in Chile. Question 1 options: True False

whoever answers first gets the crown

X Y
-7 0
0 1

What is the slope of the linear function represented in
the table?
*-7
07/1
01/1
07

Please help me. I need the answer if its diameter, radius, or circumference. After i pick one it asks the calculations. Thanks!​

A composite figure is made up of a triangular prism on top of a rectangular prism. Which of the following surface area equations could you use to find the total surface area of the solid? Select all that apply. SA = 2l + l2 SA = 2rh + 2r2 SA = 4r2 SA = r + r2 SA = 2lw + 2lh + 2wh SA = 2B + Ph

Solve the equation t − 3 = 17 for t.

−20
20
−14
14

The Sugar Sweet Company is going to transport its sugar to market. It will cost $5500 to rent trucks, and it will cost an additional $150 for each ton of sugar transported.
Let C represent the total cost (in dollars), and let S represent the amount of sugar (in tons) transported. Write an equation relating C to S. Then use this equation to find the total cost to transport 12 tons of sugar.
Equation:

Total cost to transport 12 tons of sugar:

-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)

find the value of a and be when x is 12 a= 5x^2/2 b= 2x^2(x-5)/10x

Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.



What is the mean number of minutes spent on the phone?

Can somebody help me on this question

Departure: 5:35 a.m.
Arrival: 8:17 p.m.

Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111

15 points to whoever answers this!!

For five days, Diego recorded the lengths, in minutes, of his walk to school. The mean for his data is 11 minutes. Determine which data set below is Diego’s, and prove that your choice is correct.

I NEED SOMEONE WHO ACTUALLY KNOWS WHAT THEY’RE DOING TO ANSWER THIS QUESTION.—-


Michelle has a recipe that calls for 2 1/2 cups of vegetable oil. She wants to use 2/3 of that amount of oil and use applesauce to replace the rest. How much vegetable oil will she use?

Find the perimeter of this shape.