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3 years ago

Solve for x for both of these plssss i need help

Mathematics

1 answer:

lions [1.4K]3 years ago

7 0

Answer:

top one is -7

bottom one is -3

Step-by-step explanation:

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A picture on a page was reduced by 60% of its original size, and this copy was then reduced by 20%. What percent of the size of

melamori03 [73]

Answer:

the final copy should be 12% of the original picture.

Step-by-step explanation:

you multiply 20% by 60%

and you get 0.12 which is the same as 12%

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3 years ago

90/9 as a whole number

stiks02 [169]

Answer:

Step-by-step explanation:

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3 years ago

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Neporo4naja [7]

Answer:

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2 years ago

A carpet square is 9inches what’s the area of the carpet square?

AleksAgata [21]

Answer:

The area of the carpet which is square in shape is 81 $inches^2$

Step-by-step explanation:

Given:

side of the carpet square = 9 inches

To Find:

area of the carpet square = ?

Solution:

The area of the carpet = area of the square

we know that the area of the square is

=> side X side

Substituting the side of the square, we get

=> 9 X 9

=> 81 $inches^2$

6 0

3 years ago

Help me jim! geometry homework

Maksim231197 [3]

Question 1

The angles 52 degrees match up. So if the sides are in proportion, then the triangles are similar.

Notice how 8/12 = 18/27 is a true equation. So the sides are in proportion to one another.

Therefore, the triangles are similar. I used the SAS similarity theorem.

================================================================

Question 2

Let's find the missing angle of the triangle on the right. For now, make that missing angle to be x.

Rule: For any triangle, the three angles always add up to 180

x+70+32 = 180

x+102 = 180

x = 180-102

x = 78

The missing angle of the triangle on the left is 78 degrees

Repeat for the other triangle as well

y+78+32 = 180

y+110 = 180

y = 180-110

y = 70

Both triangles have the angles 32, 70, 78 in whatever order you wish.

Since the angles match up like this, the triangles are similar because of the AA Similarity theorem

Technically, we only need 2 pairs of congruent angles at minimum. But having 3 congruent pairs doesn't hurt either.

================================================================

Question 3

We have a pair of congruent 54 degree angles shown. There's another pair of angles at the very top that overlap (aka shared angles).

Since we have two pairs of congruent angles, the two triangles are similar.

This time we use the AA Similarity theorem

================================================================

Question 4

Let's divide the longest side of the bottom triangle by the longest side of the triangle on top

48/32 = 1.5

Now let's divide the shortest sides of each triangle in the same order

36/24 = 1.5

Repeat for the middle-most sides

45/30 = 1.5

We get the same linear scale factor 1.5 each time. Therefore, the triangles are similar due to the SSS Similarity theorem

================================================================

Question 5

Any angle is equal to itself due to the reflexive property. So that will go for reason number 2.

Reason 3 is SAS similarity because we have the sides in proportion (statement 1) and the angles are congruent (statement 2).

3 0

2 years ago