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3 years ago

Select THREE equations whose graphs are straight lines

Mathematics

1 answer:

NARA [144]3 years ago

3 0

Answer:

A, C and D

Step-by-step explanation:

A: y = 7 is a straight, horizontal line

B: is a parabola. Discard

C: (cannot read denominator) This is a straight line thru the origin.

D: This is a straight line.

E: This is a parabola, due to to the x^2 term. Discard

F: This is a circle. Discard

Straight lines here are A, C and D

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(Before you answer I am looking for how I do it. I have the answers but I need to know an equation to do this instead of using l

Tema [17]

Answer:

14 and 16.

Step-by-step explanation:

We know that two consecutive even numbers is 30.

Let's let n be any number.

Then the first even number must be 2n.

This is because n can be any number, either even or odd. However, if we multiply it by 2, this ensures that 2n is even. Remember that any number multiplied by 2 yields an even number.

Therefore, the consecutive even number will be (2n+2). Not (2n+1), because that gives an odd number.

We know that they sum to 30. So, we can write the following equation.

$(2n)+(2n+2)=30$

And we solve from there:

$4n+2=30\\\Rightarrow4n=28\\\Rightarrow n=7$

So, the value of n is 7.

Therefore, the first even number is 7(2)=14.

And the consecutive even number is 16.

Edit: Typo

7 0

2 years ago

Can someone please help?!

weqwewe [10]

Answer:

Plot the points (0,0) and (1,3) to make the line.

Step-by-step explanation:

We know that a linear equation is y=mx+b, m is the slope and b is the y-intercept. We can see that the slope is m=3, and there is no b meaning b=0. Since the y-intercept is 0 we can start from the origin (0,0). The slope is 3/1 or known as rise/run. You go up 3 and go right 1, making the second point (1,3). This should work.

3 0

2 years ago

what is the greatest place value position where the digits differ? what does that mean if we use it in decimal?

Brums [2.3K]

The Tenths place because it's the first

6 0

3 years ago

Solve the following problems:

siniylev [52]

Answer:

DB = 13 cm

Step-by-step explanation: