All categories

3 years ago

What is the x-intercept of x^2-4x

Mathematics

1 answer:

nikklg [1K]3 years ago

3 0

Answer:

x int: (4,0)

Step-by-step explanation:

make y=0

x^2-4x=0 add 4 to both sides

x^2=4x divide by x

x=4

You might be interested in

There are 48 students going on a field trip and 1/4 are girls how many boys are going on the field trip? In tape diagram

Sedaia [141]

Answer:

3/4 or 75% are boys

Step-by-step explanation:

4 0

3 years ago

I need help with this question i dont understand it

RUDIKE [14]

The perimeter, by definition, is the outside measure of that figure. MN and LM are the same length and LK and NK are the same length....we just need to find the lengths! Use the distance formula to find the distance between the 2 points:
$\sqrt{( x_{2} - x_{1} ) ^{2} +( y_{2}- y_{1} ) ^{2} }$
For the segment MN, use the coordinates of M as your x1, y1, and use the coordinates of N for x2, y2:
$\sqrt{(3-2) ^{2}+(4-3) ^{2} }$
which simplifies to
$\sqrt{(1 )^{2}+(1) ^{2} }$ which is $\sqrt{2}$
So that is the length of both MN and LM. So far our perimeter is $\sqrt{2} + \sqrt{2}=2 \sqrt{2}$
Now let's use the same formula to find out the length of one of the longer segments:
$\sqrt{(5-3) ^{2} +(3-2) ^{2} }$
which simplifies down to
$\sqrt{(2) ^{2} +(1) ^{2} }$
which is of course $\sqrt{5}$
Since we have 2 of those lengths, $\sqrt{5} + \sqrt{5}=2 \sqrt{5}$
So our perimeter is, in the end, $2 \sqrt{2}+2 \sqrt{5}$
That's the third choice down

7 0

3 years ago

Which figure is not a polygon ?

yawa3891 [41]

The answer is Figure D, because a polygon has to have <em>all</em> actual sides and no curves.

4 0

3 years ago

Read 2 more answers

72 miles in one day is 72 miles per how many hours

IrinaVladis [17]

Answer:

72 miles per 24 hours

Step-by-step explanation:

72 miles in one day

There are 24 hours in a day.

8 0

3 years ago

Kyle already knew 19 appetizer recipes before starting culinary school, and he will learn 1

Bess [88]

So you know he starts off with 19. This is the first term. He learns one more each week, so let’s assign this the variable w.

19+1w

Set this equal to 47, since you’re solving how many to get to 47 recipes.

19+1w=47

To find out how many weeks, isolate the variable. Begin by combining like terms. Move the 19 to the side of the 47 by subtracting.

19+1w=47
-19 -19
—————-
1w= 28

To further isolate w, divide both sides by 1. This removes the coefficient from w and isolates it.

1w=28
—- ——
1 1

w=28

This means it will take him 28 weeks to learn 47 appetizer recipes in total. To check this answer, simply plug it back into the original equation.

19+1(28)=47
19+28=47
47=47

This means the answer is right, it will take 28 weeks.

I hope this helps! Please comment if you need any more explanation and I’ll get back to you ASAP.

6 0

3 years ago