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3 years ago

HELP ME PLEASE I'll give brainless.

Mathematics

1 answer:

Lana71 [14]3 years ago

3 0

Answer:

∠FGI=40°

Step-by-step explanation:

CE║FH ⇒ ∠CDG=∠FGI=40°

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What is the slope the line?

laila [671]

Answer:

the slope is 3/4x

Step-by-step explanation:

if you need it in slope intercept form too its y=3/4x-1

4 0

3 years ago

Prove that if r is any rational number, then 3r2 − 2r + 4 is rational. The following properties may be used in your proof. Prope

ziro4ka [17]

Given:

Expression is

$3r^2-2r+4$

To prove:

If r is any rational number, then $3r^2-2r+4$ is rational.

Step-by-step explanation:

Property 1: Every integer is a rational number. It is Theorem 4.3.1.

Property 2: The sum of any two rational numbers is rational. It is Theorem 4.3.2.

Property 3: The product of any two rational numbers is rational. It is Exercise 15 in Section 4.3.

Let r be any rational number.

We have,

$3r^2-2r+4$

It can be written as

$3(r\times r)-2r+4$

Now,

3, -2 and 4 are rational numbers by property 1.

$r^2=r\times r$ is rational by Property 3.

$3r^2\text{ and }-2r$ are rational by Property 3.

$3r^2+(-2r)+4$ is rational by property 2.

So, $3r^2-2r+4$ is rational.

Hence proved.

6 0

3 years ago

52% of ______ days is 13 days.

abruzzese [7]

'of' in mathematics means multiplication
'is' in mathematics means equal

52% * x = 13

52/100 * x = 13

0.52x = 13

x = 13/0.52

x = 25

52% of 25 days is 13 days.

8 0

3 years ago

Line segment xy has endpoints at x(2, -3) and y(-1, 2). what is the length of xy

Assoli18 [71]

The length of xy = $\sqrt{ (-1-2)^{2} + (2+3)^{2} } = \sqrt{ (-3)^{2} + 5^{2} } = \sqrt{9+25} = \sqrt{34} ;$

4 0

3 years ago

Please help me!! Answer this below:

nirvana33 [79]

Answer:

D.. ..... . . .......

Step-by-step explanation:

hhhggg

3 0

2 years ago