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2 years ago

What two facts can you double to find 8 x 4

Mathematics

2 answers:

amid [387]2 years ago

3 0

If you double 16 you get the answer to 8*4 (Which is 32)

madreJ [45]2 years ago

3 0

Answer:

The answer is 2 and 8

Step-by-step explanation:

First let us find the value of 8*4

8*4 = 32

Second let us find two numbers that we can correctly multiply to give half of 32 I.e 16.. Say 8 and 2

Hence 8*2=16

So that when we double 16 we have 32

I.e

16*2=32

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The isosceles trapezoids, ABCD and EFGH, are similar quadrilaterals. The scale factor between the trapezoids is 2:3, = 6 centime

Bingel [31]

Answer:

Part A) see the explanation

Part B) see the explanation

Part C) The perimeter of trapezoid ABCD is 32 centimeters and the perimeter of trapezoid EFGH is 48 centimeters

Step-by-step explanation:

<u><em>The complete question is</em></u>

The isosceles trapezoids, ABCD and EFGH, are similar quadrilaterals. The scale factor between the trapezoids is 2:3, GH = 6 centimeters, AD = 8 centimeters, and AB is three times the length of DC

Part A) Write a similarity statement for each of the four pair of corresponding sides

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional

The corresponding sides are

AB and EF

BC and FG

CD and GH

AD and EH

$\frac{AB}{EF}=\frac{BC}{FG}=\frac{CD}{GH}=\frac{AD}{EH}$

Part B) Write a congruence statement for each of the four pair of corresponding angles.

we know that

If two figures are similar, then its corresponding angles are congruent

The corresponding angles are

∠A and ∠E

∠B and ∠F

∠C and ∠G

∠D and ∠H

∠A ≅ ∠E

∠B ≅ ∠F

∠C ≅ ∠G

∠D ≅ ∠H

Part C) Determine the perimeter for each of the isosceles trapezoids

we have

The scale factor between the trapezoids is 2:3, GH = 6 centimeters, AD = 8 centimeters, and AB is three times the length of DC

step 1

Find the measure of CD

Remember that

The ratio between corresponding sides is proportional and this ratio is the scale factor

Let

z ----> the scale factor

$z=\frac{2}{3}$

$\frac{2}{3}=\frac{CD}{GH}}$

we have

$GH=6\ cm$

substitute

$\frac{2}{3}=\frac{CD}{6}}\\\\CD=4\ cm$

step 2

Find the measure of AB

Remember that

AB is three times the length of DC

$AB=3DC$

$DC=CD=4\ cm$

substitute

$AB=3(4)=12\ cm$

step 3

Find the measure of BC

Remember that in an isosceles trapezoid, the legs are equal

BC=AD

we have

$AD=8\ cm$

therefore

$BC=8\ cm$

step 4

Find the perimeter of trapezoid ABCD

$P=AB+BC+CD+AD$

substitute the values

$P=12+8+4+8=32\ cm$

step 5

Find the perimeter of trapezoid EFGH

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

Let

z ---> the scale factor

x ----> the perimeter of trapezoid ABCD

y ----> the perimeter of trapezoid EFGH

$z=\frac{x}{y}$

we have

$z=\frac{2}{3}$

$x=32\ cm$

substitute

$\frac{2}{3}=\frac{32}{y}$

$y=32(3)/2=48\ cm$

therefore

The perimeter of trapezoid EFGH is 48 centimeters

3 0

2 years ago

PLZZZ HELP I DONT UNDERSTAND THIS AT ALLLLLL. :( :(

NISA [10]

Answer:

W÷9=z

Step-by-step explanation:

18÷9=2

45÷9=5

81÷9=9

Z is the quotient of W when divided by 9.

4 0

2 years ago

What is the intermediate step in the form (x+a)^2=b as a result of completing the following equation? Please help.

aksik [14]

Answer:

(x+8) ^2=64

Step-by-step explanation:

that will give you your two solutions: x= -16 and x=0. I hope this helps!!!

8 0

2 years ago

PlZ HELP ME I REALLY NEED THE ANSWERS. WILL GIVE BRAINLIEST. THANKYOU SO MUCH!!!

Dovator [93]

Answer:

Answers are listed hoping that they make sense XD

Step-by-step explanation:

1. -0.5

2. 7

3. -23

I just substituted the value given from x and solved for y. I hope that is what the question is asking for.

Hope this helps :)

4 0

2 years ago

If n is a positive integer and the product all the integeres from 1 to n inclusive is a multiple of 990 what is the least possib

kolbaska11 [484]

Hello,

Since 990=2*3²*5*11 ==>n=11

6 0

2 years ago