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3 years ago

11

To win the long jump, you need to jump a distance greater than 2.25 m. Your personal best jump is 2.1 m. How much do you need to

increase your personal best by to win?

2 answers:

DiKsa [7]3 years ago

5 0

Find the difference of both numbers: 0.15
Since it has to be greater, any number larger than 0.15 will work.

atroni [7]3 years ago

3 0

U would need 0.25 yeah this is corect

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Is y=3x+4 a function?

Oxana [17]

Answer:

Yes, it is a function

Step-by-step explanation:

Every possible input x value is paired with a unique output y value.

Another approach is to graph the function then conduct the VLT (vertical line test) at which point you will realize that any vertical line will intersect the graph at one point only meaning it is a function.

Hope this helps.

5 0

1 year ago

X+2<br> x²+1<br> What’s the answer

Ivan

Answer:

3x^2+1

Step-by-step explanation:

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3 years ago

Identify the x-intercepts of the function below f(x)=x^2+12x+24

damaskus [11]

<u>ANSWER: </u>

x-intercepts of $\mathrm{x}^{2}+12 \mathrm{x}+24=0 \text { are }(-6+2 \sqrt{3}),(-6-2 \sqrt{3})$

<u>SOLUTION:</u>

Given, $f(x)=x^{2}+12 x+24$ -- eqn 1

x-intercepts of the function are the points where function touches the x-axis, which means they are zeroes of the function.

Now, let us find the zeroes using quadratic formula for f(x) = 0.

$X=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$

Here, for (1) a = 1, b= 12 and c = 24

$X=\frac{-(12) \pm \sqrt{(12)^{2}-4 \times 1 \times 24}}{2 \times 1}$

$\begin{array}{l}{X=\frac{-12 \pm \sqrt{144-96}}{2}} \\\\ {X=\frac{-12 \pm \sqrt{48}}{2}} \\\\ {X=\frac{-12 \pm \sqrt{16 \times 3}}{2}} \\\\ {X=\frac{-12 \pm 4 \sqrt{3}}{2}} \\ {X=\frac{2(-6+2 \sqrt{3})}{2}, \frac{2(-6-2 \sqrt{3})}{2}} \\\\ {X=(-6+2 \sqrt{3}),(-6-2 \sqrt{3})}\end{array}$

Hence the x-intercepts of $\mathrm{x}^{2}+12 \mathrm{x}+24=0 \text { are }(-6+2 \sqrt{3}),(-6-2 \sqrt{3})$

8 0

3 years ago

The enrollment at a local college increased 2% over last year's enrollment of 3300. Find the current enrollment.

ella [17]

It should be 3366. To find the percent increased, multiply 3300 by .02 and add that to 3300, giving you 3366.

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3 years ago

Write a related subtraction fact for 9 + 3 = 12. Explain how the two facts are related.

Mademuasel [1]

12-9=3
3+9=12

Fact Family

8 0

3 years ago