Is the product of a fraction that is less than one and any whole number less than or greater than the while number?Explain your thinking.

Answers

Answer 1

Answer: Less. A whole number times 1/2 is half of the whole number, a whole number times 1/4 is a fourth of the whole number. 6x1/2=3, 6x1/4=1.5 :)

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Simplify the expression:
-10+-v–2+-9

Answers

-10 + -v - 2 + -9

First, simplify. / Your problem should look like: $-10 - v - 2 - 9$
Second, simplify/subtract. / Your problem should look like: $-v - 21$

Answer: -v - 21

$-10+-v-2+-9 = -10-v-2-9 = -v -21 =\boxed {-1 (v+21)}$

help me wit these 3 questions plz.

A cone has a base radius of 7 centimeters and a height of 21 centimeters.

What is the volume of the cone?

28π cm3

49π cm3

147π cm3

343π cm3

Answers

1. Cone

$r=7cm$
$h=21cm$

$V= (\pi*r^2*h)/(3)=(\pi*7^2*21)/(3)=7^2*7*\pi=7^3\pi=343{\pi}cm^3$

Answer: D

2. Cylinder

$r=5ft$
$h=16ft$

$V= \pi*r^2*h=\pi*5^2*16=25*16\pi=400\pi ft^3$

Answer: A

3.Pyramid

In this case it will be

$V= (a*b*h)/(3)$

$a=9ft$
$b=4ft$
$h=12ft$

$V= (4*9*12)/(3)=4*3*12=144 ft^3$

Answer: B

Someone please help me make a proof for the bottom question

Answers

Answer:

DB = CA (Proved)

Step-by-step explanation:

Statement 1.

∠D = ∠C, M is the midpoint of DC and ∠1 = ∠2

Reason 1.

Given

Statement 2.

Between Δ DBM and Δ CAM,

(i) DM = CM,

(ii) ∠D = ∠C and

(iii) ∠DMB = ∠CMA

Reason 2.

(i) given

(ii) given and

(iii) ∠ DMB = ∠1 + ∠AMB and ∠CMA = ∠2 + ∠AMB

Since ∠1 = ∠2, so, ∠DMB = ∠CMA.

Statement 3.

Δ DBM ≅ Δ CAM

Reason 3.

By angle-side-angle rule.

Statement 4.

DB = CA

Reason 4.

Corresponding sides of two congruent triangles. (Answer)

Help me please!Choose the statement that best describes the information displayed in the table.
A) The foreign-born percentage of population was the highest in 1910.
B) The percentage of foreign-born individuals in the US has remained unchanged.
C) Over the past 30 years, the foreign-born population in the US has been decreasing.
D) From 1910 to 1960 the percentage of foreign-born individuals in the US was increasing

Answers

A, the highest point on the chart was in 1910

Are they scaled copies or not? If so how do I find out?

Answers

1) Find the length of the diagonals of the greater rhombus

NJ=9 units

XY=6 units

Find the the ratio

NJ/XY=9/6-------> 3/2

2) Find the length of the diagonals of the smaller rhombus

HS=6 units

ZC=4 units

Find the the ratio

HS/ZC=6/4-------> 3/2

NJ/XY=HS/ZC--------> the rhombus are similar

the scale factor is equal to ------> 3/2=1.5

measure greater rhombus =scale factor*measure smaller rhombus

measure greater rhombus =1.5*measure smaller rhombus

measure smaller rhombus=(measure greater rhombus/1.5)

therefore

the answer is

Yes , they are a scaled copies and the scale factor is equal to 1.5

What is 28% of 80? please answer as a decimal

Answers

Answer:

22.4

Step-by-step explanation:

Is means equals and of means multiply

W = 28% * 80

Change to decimal form

W = .28 * 80

W = 22.4

28 percent of 80 is 22.4

Answer:

22.4

Step-by-step explanation:

80/x = 100/28

80/x = 3.57142857143

times both sides by x

x cancels out on the left and leaves on the right 3.57142857143x

80/3.57142857143 = x

22.4 = x

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