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4 years ago

Justin is going to pour milk into 4 glasses for his

Mathematics

1 answer:

qaws [65]4 years ago

3 0

Answer:

8/5 or 1 3/5

Step-by-step explanation:

so you would do 2/5+2/5+2/5+2/5

You would only add the 2s on top of each other to make it 8/5 or 1 3/5 of a pint

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Samuel is looking at the floor plan of his house to determine how much carpet he needs to buy for his basement. Based on the flo

DerKrebs [107]

Answer:

B) First, find two areas using (4m x 10m = 40m2) and (8m x 3m = 24m2). Next, add (40m2 + 24m2 = 64m2).

Step-by-step explanation:

Samuel should is looking to find the area of his basement in order to cover it with carpet.

An area is calculated by multiplying two dimensions (so answers A and D are not it).

Best solution is to divide the area into two large rectangles then ADD them together to get the total area.

The only scenario where he could have subtracted something based on his plan is if he would have multiplied the 10m by the 12m then subtracted the area that is not part of his basement (7mx8m). He would have achieved the same result of course, but by going a different way.

3 0

3 years ago

A professor has kept records on grades that students have earned in his class. If he wants to examine the percentage of students

AleksandrR [38]

Answer:

Pie chart

Step-by-step explanation:

Given that a professor has kept records on grades that students have earned in his class

He wants to examine the percentage of students earning the grades A, B, C, D, and F during the most recent term,

We have to find which kind of plot could he make

Box plot gives comparison for interval of scores this is to some extent helpful to find out the percentage of students getting a range of scores

Timeplot is irrelevant here. Dot plot will not be of much use.

Histogram is to some extent useful as box plot

But the best one is pie chart giving easy visual comparison for various grades A, B,C,D,E and F

8 0

3 years ago

Simplify expression: 3^{−(4a+1)} −3^{−(4a−1)} + 3^{−4a}

lyudmila [28]

$3^{-(4a+1)}-3^{-(4a-1)} + 3^{-4a} =3^{-4a-1 }-3^{- 4a+1 } + 3^{-4a}=\\ \\=3^{ -4a }*3^{-1}-3^{ - 4a }*3^1 + 3^{-4a} =3^{-4a}(3^{-1}-3+1)=3^{ -4a }*(\frac{1}{3}-2)=\\ \\=3^{ -4a }*(-1\frac{2}{3})=3^{ -4a }*(-\frac{5}{3})=3^{ -4a }*(-5)*\frac{1}{3} =-5 *3^{ -4a }*3^{-1}=\\ \\ =-5 *3^{ -4a +(-1)}=-5 *3^{ -4a -1}$

3 0

3 years ago

What is the range of the relation below? {(-4,1), (-2,0), (8, -1)}

anyanavicka [17]

Answer:

Range: {-1, 0, 1}

General Formulas and Concepts:

Math

Number Line

Algebra I

Range is the set of y-values that are outputted by function f(x)
{Set Builder Notation}

Step-by-step explanation:

Step 1: Define

[Relation] {(-4, 1), (-2, 0), (8, -1)}

Step 2: Identify

According to the relation, our y-values are 1, 0, and -1. These values would encompass our range.

5 0

3 years ago

Which set of measurements could be the side lengths of a triangle

inessss [21]

Answer:

Hi,

Step-by-step explanation:

(13,7,4) may not be a triangle since 13 is not little than 7+4=11
(7,10,8,) may be a triangle (7 < 10+8 , 10 < 7+8, 8 < 10+7)

(9,4,4) no since 9 is not < 4+4

(2,8,12) no since 12 is not < 2+8

The only answer is (7,10,8)

7 0

2 years ago