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Sophie [7]
3 years ago
11

What are zeros of function y=2x2 -3x-20, and why

Mathematics
1 answer:
kykrilka [37]3 years ago
4 0
4 and -2.5

You can get this by first factoring the equation. 

(2x + 5)(x - 4)

Then set both equal to zero and solve individually. 
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HELP ASAP PLEASEEE What is the equation of the line in the form y=mx+b
lilavasa [31]

Answer:

y=x

Step-by-step explanation:

y=mx+b

m is the slope

b is the y-intercept

Since the y-intercept is at the 0 axis, the y-intercept will be zero

So now the equation is looks like this:

y=mx (Since y=mx+0 doesn't make a difference)

Now find the slope

Which is 1

Thus y=x

Hope this helps!

3 0
2 years ago
A circle has a radius of 26.85 inches.
Vsevolod [243]

Answer:

168.61

Step-by-step explanation:

C=2*Pi*R

C=2*3.14*26.85

C=6.28*26.85

C=168.61

5 0
3 years ago
An apple pie uses 4 cups of apples and 3 cups of flour. An apple cobbler uses 2 cups of apples and 3 cups of flour. You have 16
rjkz [21]
Part 1:

Given that x represents the <span>number of apple pies that can be made and y represents the number of apple cobblers that can be made.

Given that a</span><span>n apple pie uses 4 cups of apples and an apple cobbler uses 2 cups of apples and there are 16 cups of apples available.

</span>A<span>n inequality to show the constraint on the amount of apples available is given by:

4x + 2y ≤ 16
</span>


Part 2:

<span>Given that an apple pie uses 3 cups of flour and an apple cobbler uses 3 cups of flour and there are 15 cups of flour available.

</span>A<span>n inequality to show the constraint on the amount of flour available is given by:

3x + 3y ≤ 15



Part C:

The </span><span>non negativity contraints on x and y are:

x ≥ 0 and y ≥ 0
</span>
8 0
3 years ago
"The sum of 4 and a number, divided by 2 is less than -6."​
Ksenya-84 [330]

Answer:

\frac{4+n}{2} < -6, n < -16

Step-by-step explanation:

To write this into an inequality you need to recognize keywords. The first keyword is "sum" this means the two numbers must be added; so the first part of the inequality is 4+n. Then, it says the sum is "divided by" 2; this means both numbers must be put over two like \frac{4+n}{2}. Finally, this is "less than" negative. Therefore, this must be an inequality with a sign opening towards -6. So the final answer is \frac{4+n}{2} < -6.

To solve the inequality isolate the variable. Multiply both sides by 2, so the new inequality is 4+n. Next, subtract 4 from both sides. The answer is n < -16.

3 0
3 years ago
Fill in the other coordinate 2x-5y=11 (4,?)
Hitman42 [59]
I may be wrong, but here's what I got for my answer.

(5.5, -2.2)
4 0
3 years ago
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