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3 years ago

Please help help please

Mathematics

1 answer:

Dimas [21]3 years ago

5 0

the answer is.....

$17.6625$

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I ate a bunch of cookies. I had 10 cookies and now I have 6. What was the percent decrease?

kirza4 [7]

Answer:

6/10 - 1 = -0.4 = -40%

A decrease of 40%.

4 0

3 years ago

What is the scale factor of triangle ABC to DEF ?

bekas [8.4K]

Answer: The correct option is (A). 3.

Step-by-step explanation: We are given to find the scale factor of dilation from ΔABC to ΔDEF.

As shown in the figure, the lengths of the sides of ΔABC to ΔDEF are

AB = 5 units, BC = 4 units, CA = 3 units,

DE = 15 units, EF = 12 units, FD = 9 units.

We know that the scale factor is given by

$S=\dfrac{\textup{length of a side of the dilated figure}}{\textup{length of the corresponding side of the original figure}}.$

Therefore, the scale factor of dilation from from ΔABC to ΔDEF is

$S=\dfrac{DE}{AB}=\dfrac{15}{5}=3.$

Thus, the required scale factor is 3.

Option (A) is correct.

8 0

3 years ago

Read 2 more answers

What is the intercept for the graph of this line? 5x -3y =11

MatroZZZ [7]

Step-by-step explanation:

$5x-3y=11\\\\x-intercept\ is\ for\ y=0\\\\5x-3(0)=11\\5x-0=11\\5x=11\qquad\text{divide both sides by 5}\\x=\dfrac{11}{5}\\\\y-intercept\ is\ for\ x=0\\\\5(0)-3y=11\\0-3y=11\\-3y=11\qquad\text{divide both sides by (-3)}\\y=-\dfrac{11}{3}$

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3 years ago

How many 45 degree angles does it take to make a full turn?

VLD [36.1K]

Full turn: 360 degrees
360/45=8
8 45 degree turns for a full 360 degrees turn

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3 years ago

PLEASE HELP I WILL GIVE BRAINLIEST!!!!

IRISSAK [1]

Large rectangles-2*3*6=36
medium ones 2*2*6=24
small ones 2*2*3=12
surface =72

6 0

3 years ago