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4 years ago

Can someone answer I barely have any points now :(

Mathematics

1 answer:

Pani-rosa [81]4 years ago

7 0

A. True, a rhombus is a parallelogram with equal sides. A rhombus has four congruent sides.

B. True, but there are two other ways to find the area of a rhombus: there is the "diagonals" method and the "trigonometry" method.

C. False, the area of a rhombus is not less than the area of a parallelogram because it will depend on the diagonals.

D. False, a parallelogram is not always a rhombus because the dimensions and other attributes of a parallelogram may vary while the rhombus will remain equal for all aspects.

E. True, if you use the base times height formula but if you used any of the other formulas this would be false.

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Line segment AB is dilated to create line segment A'B' using point Q as the center of dilation. What is the scale factor?

lorasvet [3.4K]

<h2><u>Answer:</u></h2>

The distance from point Q to point A is 1.25

The distance from point A to point A' is 1.25

The distance from point Q to point A' is 2.50. This is twice the distance from point Q to point A.

The scale factor is 2.

1.25 + 1.25 = 2.50

2.50 / 1.25 = 2

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3 years ago

your local gas stations are having a price war during the past seven days they have lowered the price of regular gas by $0.2 eac

Serga [27]

<h2>Answer with explanation:</h2>

Let x denotes the number of days and y denotes the total change in gas price ( in dollars).

Given : During the past seven days the price of regular gas is decreased by $0.2 each day.

Rate of decrease =$0.2 per day

Then , Total change in gas price = Rate of decrease x Number of days

i.e. $y= 0.2 \times x$

i.e. $y=0.2x$ (1)

To find the total change in gas price in 7 days , we put x= 7 in (1) , we get

$y=0.2(7)=1.4$

Hence, the total change in gas price in 7 days = $1.4

8 0

3 years ago

What is the equation to find the circumference of a circle?

Rasek [7]

Answer:

C=2 π r

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

The Earth’s total diameter is 12700 kilometers, with the solidified, ocean-covered crust that is at its thickest 35 kilometers w

Basile [38]

Answer:

The correct answer is 0.0667 centimeters.

Step-by-step explanation:

Diameter of earth is 12700 kilometers.

Width of the solidified ocean crust is 35 kilometers.

Ratio between the diameter of the earth and the solidified crust is $\frac{12700}{35}$ .

Now the earth is shrunken to a size of a basketball with the diameter as 24.2 centimeters. Let the thickness of the Earth's crust in this model be x centimeters.

Ratio between the diameter of the model earth and the solidified crust is $\frac{24.2}{x}$ .

But this ratio of the real Earth and its model must be equal.

∴ $\frac{12700}{35}$ = $\frac{24.2}{x}$

⇒ x = 0.0667 centimeters.

7 0

3 years ago

Use compatible numbers to find two estimates 1322 divided by 18

prisoha [69]

Compatible numbers is used to find estimate to a sum. The numbers are chosen because its 'simplicity' when they are multiplied, divided, added or subtracted.

Estimate one:

We can decrease the value 1322 to 1320 and 18 to 15
Then do the sum = 1320÷15 = 88
This estimate is not far from the actual answer 1322÷18 = 73.44..

Estimate two:

We can increase 1322 to 1330 and 18 to 20
Then do the sum 1330÷20=66.50
This estimate is also not far from the actual answer 73.44...

5 0

3 years ago