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3 years ago

Write the slope-intercept form of the line with a slope of 2 and a

Mathematics

2 answers:

Gennadij [26K]3 years ago

7 0

Answer:

Hey! I got ya.

Step-by-step explanation:

Slope intercept form is y=mx+b and by coordinating the slope (m) and the y-intercept (b) into the equation, the final answer would be y=2x-4. Hope this helped :)

marishachu [46]3 years ago

5 0

Answer:

y = 2x - 4

Step-by-step explanation:

Slope-intercept is written in this form:

y = mx + b

Where m = slope and b = y-intercept

With this information, plug in the slope and the y-intercept where they belong

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Explain why it is necessary to rename 4 1/4 if you subtract 3/4 from it.

Ede4ka [16]

Renaming fractions is also called "borrowing" - it's because you borrow fraction parts from the wholes of a mixed number.

this is necessary when, if you subtract, the subtracted fraction part is bigger than the fraction part of the number from which you subtract: so here 3/4 is bigger than 1/4 and we need to borrow

if we wanted to subtract 3/4 from 4 1/4 then you're stuck: how do you subtract 3/4 from 1/4? you can't, but you can change 4 1/4 into 3 5/4 !!!! it's the same number, you just borrowed from the whole unmbers and put into the fraction!

now we can subtract: 3 5/4-3/4 is 3 2/4

$3\frac{5}{4}- \frac{1}{3} =3 \frac{2}{4} =3\frac{1}{2}$

8 0

3 years ago

4<br>-5a+b=8<br>7a +9b = -32<br>I need to use substitution for this one. Help?

Sauron [17]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}-5a+b=8&\text{add}\ 5a\ \text{to both sides}\\7a+9b=-32\end{array}\right\\\\\left\{\begin{array}{ccc}b=5a+8&(1)\\7a+9b=-32&(2)\end{array}\right\\\\\text{Substitute (1) to (2):}\\\\7a+9(5a+8)=-32\qquad\text{use the distributive property}\\\\7a+(9)(5a)+(9)(8)=-32\\\\7a+45a+72=-32\qquad\text{subtract 72 from both sides}\\\\52a=-104\qquad\text{divide both sides by 52}\\\\\boxed{a=-2}\\\\\text{Put the value of}\ a\ \text{to (1):}\\\\b=5(-2)+8\\\\b=-10+8\\\\\boxed{b=-2}$

8 0

3 years ago

(3*x)*7<br><br>Simplify the expression. Identify the property used

inessss [21]

tis just a plain vanila multiplication

(3·x)·7 -> 21x.

5 0

4 years ago

Pls solve the following equation. 25 = 5x - 2x + 10

Katarina [22]

Answer:

x = 5

Step-by-step explanation:

5x - 2x + 10 = 25

- 10 -10

5x - 2x = 15

3x = 15

divide 3 on both sides of the equal sign

x = 5

to check

5(5) - 2(5) + 10 = 25

25 - 10 + 10 = 25

25 = 25

6 0

3 years ago

Kayla rolls two fair number cubes each numbered 1 through 6. She needs to roll a sum of 9 or more to win a game. She rolls the n

34kurt

Answer:

1/6

Step-by-step explanation:

Starting with 2 cubes that have 6 numbers total for each one, so 2 cubes will have 12 numbers total, and the probability of number 5 is 2/12 (because each cube has a number 5, so two cubes will have 2, and fraction for it will be 2/12). After simplification, the final result is 1/6.

7 0

3 years ago