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3 years ago

Need help with this Question

Mathematics

1 answer:

Sloan [31]3 years ago

5 0

Answer:

-5 > -18

Step-by-step explanation:

-5 is greater because it has less negative value than -18.

The greater the number on negative, the lesser its value.

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On average, Mary can drive to the supermarket in 10 minutes but, depending on traffic, the drive can vary from the average by 5

never [62]

Answer:

|x−10|=5

The maximum and minimum time(x) gets subtracted by 10 resulting in the 5 minute time vary.

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4 years ago

Do the following lengths form a right triangle? (Also how to tell that they do form a right triangle)

ololo11 [35]

Answer: Yes this is a right triangle

We can determine this by using the converse of the pythagorean theorem.

a = 5, b = 12, c = 13

$a^2 + b^2 = c^2\\\\5^2 + 12^2 = 13^2\\\\25 + 144 = 169\\\\169 = 169 \ \ \checkmark\\\\$

Since those a,b,c values work in the pythagorean theorem, this proves we have a right triangle.

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2 years ago

How do I factor an expression using the GCF?

Anni [7]

Answer:

use the distributive property

Step-by-step explanation:

Use the distributive property to rewrite the expression with the GCF factored out.

<u>Example</u>:

ab +ac +ad . . . . has terms with a common factor of 'a'

When the common factor is factored out, the distributive property tells you the equivalent is ...

= a(b +c +d)

If 'a' is the greatest common factor, then b, c, d are mutually prime and no more factors can be removed to outside the parentheses.

4 0

3 years ago

Ifn || m, find the value of x and the value of y.

Marat540 [252]

Answer: Option C

$y=5$ , $x=10$

Step-by-step explanation:

If the lines m and n are parallel then the large triangle and the small triangle are similar triangles, because they have equal angles.

By definition for similar triangles it is satisfied that if they have sides of length a, b, c and a', b', c' then:

$\frac{a}{a'}=\frac{b}{b'} =\frac{c}{c'}$

In this case

$a = 12\\a' = 4\\c = 15\\c' = y$

So:

$\frac{12}{4}=\frac{15}{y}$

Now solve the equation for the variable y

$3=\frac{15}{y}$

$y=\frac{15}{3}$

$y=5$

We know that

$x+y=15$ and $y=5$

Then

$x+5=15$

$x=10$

Finally the answer is:

$y=5$ , $x=10$

5 0

3 years ago

the sum of two numbers is 34. 1/2 the first number plus 1/3 of the second number is 14. write a system to find the numbers. solv

denis-greek [22]

The first number is 16 and the second is 18

System:
x + y = 34
(1/2)x + (1/3)y = 14

8 0

4 years ago