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3 years ago

Is 1.5 over 7.5 a rational number

1 answer:

4 0

A rational number is a number that can be written as a simple fraction (as a ratio) and an irrational number is a number that cannot be written as a simple fraction (irrational means not rational) Example: 1.5 is rational because it can be written as 3/2. 7.5 is rational because it can be written as 15/2, so in my mind, yes it is rational because both top and bottom are rational. Hope this helped!! :):)

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What is the greatest common divisor of 33489, 3948, and 3949

storchak [24]

33489 = 32×612

3948 = 22×3×7×47

3949 = 11×359

GCD = 1

33489 / 1 = 33489

3948 / 1 = 3948

3949 / 1 = 3949

3 0

3 years ago

O A. 17 degrees O B. 163 degrees O C. 73 degrees

eduard

Answer: B 163 degrees

Step-by-step explanation:

That's an obtuse angle, bigger than 90 degrees, so we read the appropriate upper scale for the angle.

6 0

3 years ago

Read 2 more answers

The triangles in the image are similar. Solve for x. A) 7 B) 6 C) 10 D) 5

Natalka [10]

ANSWER

A) 7

EXPLANATION

The given triangles are similar

Hence the corresponding sides are in the same proportion.

$\frac{3x + 4}{30} = \frac{30}{36}$

Simplify the right hand side:

$\frac{3x + 4}{30} = \frac{5}{6}$

Cross multiply;

6(3x+4)=5×30

Expand

18x+24=180

18x=150-24

18x=126

$x = \frac{126}{18} = 7$

4 0

3 years ago

Help!! Dont know how to do this!

CaHeK987 [17]

Answer:

A=(5D-5h)/4

Step-by-step explanation:

So you need to get a on one side so you subtract h on both sides to eliminate the h on the right side: D-h=4/5 a

now you need to multiply 5/4 on both sides in order to make 4/5 a just a

A=(5D-5h)/4

Hope this helps!

6 0

3 years ago

What value of m makes this equation true?

iris [78.8K]

The correct answer is B) m=-8

First, add 9 on both sides of the equation. You should end up with 4m=-32.

Next, divide both sides of the equation by 4. You should end up with m=-8. (A negative divided by a positive equals a negative)

Hope this helps! Have a great day ;)

6 0

3 years ago