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2 years ago

Hi please help i’m stuck

Mathematics

2 answers:

Ira Lisetskai [31]2 years ago

8 0

Answer:

y = 2x - 4

Step-by-step explanation:

Slope intercept form: y=mx+b

m=2

point (2,0) means x=2 and y=0

Plug into the equation:

0 = 2(2)+b

0 = 4+b

b = -4

Resulting equation:

y = 2x - 4

Graph:

Start at origin -4 on y-axis. Since slope is 2/1, rise 2 and run 1 to find the line.

stira [4]2 years ago

7 0

Answer:

then get un stuck

Step-by-step explanation:

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a rectangle prism has a volume of 3x^2 + 18x+ 24. its base has a length of x + 2 and width of 3, what expression represents the

OlgaM077 [116]

$\bf \textit{volume of a rectangular prism}\\\\
V=lwh\qquad 
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w=3\\
V=3x^2 + 18x+ 24
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3 years ago

13. The least common multiple of two non-zero integers a and b is the unique positive integer m such that (i) m is a common mult

Vlad [161]

Answer:

[a,b] divides n

Step-by-step explanation:

Let us denote the least common multiple of a and b [a,b]=m.

We want to prove that m divides n, where n is a multiple of a and b.

We suppose m does not divide n, then by the Division Theorem, there exists q and r integers such that:

(1) ... n=mq+r, where 0<r<m

As n is a multiple of a and b, there exists s and t integers such that:

sa=n and tb=n

Same thing happens to m as it is the least common multiple, there exists u and v such that:

ua=m and vb=m

So (1) has the following form:

n=mq+r ⇒ sa=uaq+r ⇒sa-uaq=r⇒(s-uq)a=r and

n=mq+r ⇒ tb=vbq+r ⇒ tb-vbq=r⇒ (t-vq)b=r

So r is a multiple of a and b, but r<m which is a contradiction as, m is the least common multiple of a and b. So this concludes the proof.

So this means that $\frac{ab}{m}$ is and integer.

As m= vb, then $\frac{m}{b}$ is an integer, lets say $\frac{m}{b}$ =v; and as m=ua, then $\frac{m}{a}$ =u.

So $\frac{ab}{m}$ v= $\frac{ab}{m}$ $\frac{m}{b}$ =a, so $\frac{ab}{m}$ divides a; on the other hand, $\frac{ab}{m}$ u= $\frac{ab}{m}$ $\frac{m}{a}$ =b, so $\frac{ab}{m}$ divides b. From this we can conclude that $\frac{ab}{m}$ is a common divisor of a and b.

4 0

3 years ago

Matt is a quarterback on the local football team. In the first quarter, Matt threw eight passes. Three passes were completions f

olganol [36]

Answer:

I think it's 28 yards gained.

Step-by-step explanation:

12 + 17 + 6 = 35

2 + 5 = 7

35 - 7 = 28

Please tell me if I'm wrong

6 0

3 years ago

√(4/7)^2 =<br> equations with square roots and cube roots

zhenek [66]

Answer:

See below

Step-by-step explanation:

If you are squaring a number, and then taking the square root of it, you are essentially undoing the original operation:

$\displaystyle \sqrt{\biggr(\frac{4}{7}\biggr)^2}=\biggr[\biggr(\frac{4}{7}\biggr)^2\biggr]^{\frac{1}{2}}=\biggr(\frac{4}{7}\biggr)^{2*\frac{1}{2}}=\frac{4}{7}$

Hence, we are back starting with the original number

3 0

2 years ago

Read 2 more answers

During a 3-hour storm, it snow 2.5 inches. Jacob said that it snowed an average of about 8 inches per hour. What is the error?

Ad libitum [116K]

The error was the Jacob multiplied 2.5 by 3 instead of dividing. Instead it should be. $2.5 / 3 \\ 
.83 inches an hour$

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3 years ago