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jeka94
3 years ago
5

How many hours can the mechanic work and stay within Mr. SalGados budget

Mathematics
1 answer:
4vir4ik [10]3 years ago
3 0

Answer:

yes this is maybe?

Step-by-step explanation:

I had a feeling it wast maybe but maybe its are?

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The line x = k intersects the graph of the parabola x = -2y^2 - 3y + 5 at exactly one point. What is k? Thank you! :)
bearhunter [10]

Answer:

49/8 is the value of k

Step-by-step explanation:

We have the system

x = -2y^2 - 3y + 5

x=k

We want to find k such that the system intersects once.

If we substitute the second into the first giving us k=-2y^2-3y+5 we should see we have a quadratic equation in terms of variable y.

This equation has one solution when it's discriminant is 0.

Let's first rewrite the equation in standard form.

Subtracting k on both sides gives

0=-2y^2-3y+5-k

The discriminant can be found by evaluating

b^2-4ac.

Upon comparing 0=-2y^2-3y+5-k to 0=ax^2+bx+c, we see that

a=-2, b=-3, and c=5-k.

So we want to solve the following equation for k:

(-3)^2-4(-2)(5-k)=0

9+8(5-k)=0

Distribute:

9+40-8k=0

49-8k=0

Add 8k on both sides:

49=8k

Divide both sides by 8"

49/8=k

6 0
3 years ago
Solve the system of equations by graphing.<br><br> y=−x−3<br><br> y=3+12x
zmey [24]

Answer:

Step-by-step explanation:

3 0
3 years ago
How many positive integers n satisfy the following condition: (130n)^50 &gt; n^100 &gt;2^200
kenny6666 [7]

Answer:

27

Step-by-step explanation:

4 0
3 years ago
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kicyunya [14]
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3 years ago
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What is the additive inverse of 3?<br> a. -3<br> b. a+(-a)=0<br> c. 0<br> d. -a
finlep [7]

Answer:

<em>A. -3</em>

Step-by-step explanation:

<em>3 and -3 are additive inverses since 3 + (-3) = 0. -3 is the additive inverse of 3.</em>

8 0
3 years ago
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