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Sedbober [7]
2 years ago
5

What is the range for y=-3x^2-12x-17?

Mathematics
2 answers:
tensa zangetsu [6.8K]2 years ago
6 0

Answer:

RANGE: y greater than or equal to -5 (b)

Sindrei [870]2 years ago
3 0

Graph the function

Attached

  • Vertex at (-2,-5)

Then

  • y=-(3x²+12x+17)
  • y=-(9x²+36x+51)
  • y=-[(3x)²+2(3x)(6)+51-25+25]
  • y=-[(3x)²+2(3x)(6)+36+25]
  • y=-[(3x+6)²+25]
  • y=-[(3x+6)²+5²]

We know

  • a²+b²=(a-b)²+2ab

Vertex form of parabola

  • a(x-h)²+k

vertex:-

  • (h,k)=(-2,-5)

Range:-

  • y≤-5

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If you roll a six-sided die, what is the probability of rolling a five or an even number? *
mars1129 [50]

Answer:

The probability would be a 4/6 or 66.67%

Step-by-step explanation:

All of the even numbers (and five) on a six sided die are 2, 4, 5, and 6.

That is four total numbers.

Also, since there are <em>six sides</em> on the cube, you would have a 4/6 chance or 66.67% chance of rolling a 2, 4, 5, or a 6.

Hope this helps!!!!!!

6 0
3 years ago
Please help will give brainliest!! Just define the variables and write the two equations for the two problems you don't have to
LenKa [72]

Answer:

lets say 4 is a and 2 is b.

Step-by-step explanation:

add a and b. find factors.

a = half of the 57.14 dollars

b = the other half

for the other 3 and 3 pizzas: 3x

3x is 3 cubed.

This case will give you 52 dollars % tax

yw :)

4 0
2 years ago
Read 2 more answers
Multiple Choice
Rina8888 [55]

Answer:

c

Step-by-step explanation:

unit rate is a rate with one in the denominator

8 0
3 years ago
What is the answer to 284 times 45 to the power of 3
Alecsey [184]

Hey there!

284 * 45^3

= 284 * 45 * 45 * 45

= 284 * 2,025 * 45

= 284 * 91,125

= 25,879,500


Therefore, your answer is:

25,879,500



Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

5 0
2 years ago
NEED MATH HELP NOW!!! PLEASE HELP!!!
andrezito [222]

Answer:

See explanation

Step-by-step explanation:

Vertex: -b/2a = 8/4 = 2. Plug 2 back into the equation to get (2, -2)

y-intercept: plug 0 for all the x values to get 6. The y intercept is (0,6)

x intercept: factor the equation:

2(x^2 - 4x + 3)

2(x-3)(x-1)       <— by splitting the middle variable

so the x intercepts are (x-3) and (x-1) or 3 and 1.

Axis of symmetry : 2 (the x value of the vertex)

Domain: ARN ( all real numbers)

Range: ARN except y cannot be less than -2.

To graph you simply just plug in x values in a table and get the y values. Then plot them on the graph and draw a smooth curve.

4 0
4 years ago
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