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3 years ago

Help i give 100 points litaraly 7/8 - 5/8 =

Mathematics

2 answers:

adell [148]3 years ago

7 0

Answer:

The answer is 1/4

Step-by-step explanation:

The answer is 1/4 because

7/8-5 /8

= (7 × 8) - (5 × 8) /8 × 8

= 16/64

= 16 ÷ 16/64 ÷ 16

= 1/4

I hope this helped you.

Bond [772]3 years ago

3 0

Answer:

The answer is $\frac{1}{4}$ .

Step-by-step explanation:

Since both fractions have a common denominator of 8, you can simply subtract 7-5 in the numerator.

$\frac{7}{8} - \frac{5}{8} = \frac{2}{8}$

Simplify $\frac{2}{8}$ by dividing 2 into the numerator and denominator.

$\frac{2/2}{8/2} = \frac{1}{4}$

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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

-6/-3 please give explanation

loris [4]

Answer:

Step-by-step explanation:

Remember the rule with negatives. -x/-y=x/y

So -6/-3=6/3

6/3=2

4 0

3 years ago

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You deposit $500 into a savings account that earns 3.2% annual interest. How much is in the savings account after 10 years?

Brilliant_brown [7]

A = P(1 +r/n)^nt
P = 500
r = 3.2% = 0.032
n = 1
t = 10

A = 500(1 + 0.032)^10
A = $685.12

7 0

3 years ago

The area of a right triangle with one leg measuring 5 ft. and hypotenuse measuring 13 ft. is_______ a0. Type a numerical answer

Snowcat [4.5K]

Area of the triangle = (1/2)*base*height

For right triangle base and height can be legs.

We have one leg = 5 ft. (Lets think it is a base.)

We need to find the other leg.

We are going to use Pythagorean theorem.

5² + b²=13²

b²=144

b=12 (It is going to be our height.)

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4 years ago

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mamaluj [8]

I believe it is written as 0.43

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3 years ago

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