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3 years ago

This is really hard, 5 points (its all those three questions in the screenshot)

Mathematics

1 answer:

Aleksandr [31]3 years ago

6 0

Answer:

4. Option: 2

5. 7 inches

Step-by-step explanation:

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Look at the photo.(15 pts )

horrorfan [7]

I thought i know but i don’t sorry

8 0

3 years ago

Read 2 more answers

Factor -3/4 out of 3/2x - 9/4y

Vikki [24]

Answer:

$-\frac{3}{4} \times (-2x +3y)$

Step-by-step explanation:

To factor out -3/4 out of that equation, multiply and divide by -3/4.

Say ;

= $\frac{3}{2}x -\frac{9}{4}y$

= $(\frac{3}{2}x -\frac{9}{4}y) \times \frac{-\frac{3}{4} }{-\frac{3}{4}}$

Now, rearranging and making necessary commutations.

= $-\frac{3}{4} \times (\frac{3}{2}x -\frac{9}{4}y) \times \frac{1 }{-\frac{3}{4}}$

= $-\frac{3}{4} \times (-2x +3y)$

Factoring -3/4 we get an equation without any fractions

= -2x + 3y

3 0

3 years ago

I need help asap please!!!

Mashcka [7]

1. x = 118 2. x = -54 3. x = -54 4. x = -54

5 0

4 years ago

Which equation is graphed in the diagram below

Deffense [45]

Answer:

y=2x+2

Step-by-step explanation:

7 0

3 years ago

A certain radioactive isotope has leaked into a small stream. Three hundred days after the leak, 3% of the original amount of t

sesenic [268]

If the half-life is t, then every t days, the amount of the radioactive isotope will be cut in half.
(1/2)^(number of half-lives) = 3%
number of half-lives = ln(0.03) / ln(0.5)
This gives the number of half-lives as 5.06.
Then 300 days = (5.06)(length of 1 half-life)
length of 1 half-life = 300 / 5.06 = 59.29 days

6 0

3 years ago