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goblinko [34]
3 years ago
9

What is the value of the dicriminant Of f f(x)=-7x^2+8x+2

Mathematics
1 answer:
nignag [31]3 years ago
6 0

Answer:

Step-by-step explanation:

discriminant=b²-4ac=8²-4(7)(2)=64-56=8

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Y - x = 4<br><br><br> please help!!
UNO [17]
Add the x to both sides and it turns into Y = x + 4. If this isn't what you're looking for, please provide the answer choices.
6 0
3 years ago
Deon has a pizza with a diameter
OverLord2011 [107]

The square box is enough to fit the pizza with a diameter of 10 inches inside. Since the area of the square box is more than the area of the pizza, the pizza fits easily in the square box.

<h3>What is the area of the circle and the square?</h3>

The area of the circle is

Ac = πr² = πd²/4 sq. units

Where r is the radius and d is the diameter of the circle.

The area of the square is given by

As = s² sq. units

Where s is the length of the side of a square.

<h3>Calculation:</h3>

It is given that a pizza(in a circular shape) with a diameter d = 10 in is to be placed in a square box of the same length as the diameter of the pizza.

So,

The area of pizza is

Ap = Ac = πd²/4 sq. units

     = π(10)²/4

     = 25π

     = 78.54 sq. in

Then, the area of the square box with the length same as the diameter of the pizza is,

As = d²

    = 10²

    = 100 sq. in

Since the area of the square is more than the area of the pizza (100 sq. inch > 78.54 sq. inch), the pizza easily fits into the square box.

Learn more about the area of a circle here:

brainly.com/question/15673093

#SPJ1

7 0
1 year ago
For geometry:(<br><br> i’ll give a brainist!!!
kvasek [131]
<h3>Answer: Angle Q = 133 degrees</h3>

========================================================

Work Shown:

Recall that for any triangle, the three angles always add to 180

P+Q+R = 180

(x+13) + (10x+13) + (2x-2) = 180

(x+10x+2x) + (13+13-2) = 180

13x+24 = 180

13x = 180-24

13x = 156

x = 156/13

x = 12

Now that we know x, we can find the angle measures

  • angle P = x+13 = 12+13 = 25 degrees
  • angle Q = 10x+13 = 10*12+13 = 120+13 = 133 degrees
  • angle R = 2x-2 = 2*12-2 = 24-2 = 22 degrees

As a way to check if we have the right answer or not, we see that,

P+Q+R = 25+133+22 = 180

So the answer is confirmed.

4 0
2 years ago
What is the area of the two plots of land combined if x=2?
belka [17]

Answer:

The Top Left square is your answer, 64pia^12

Step-by-step explanation:

A = (pi)r^2

A= (pi)(8a^6)^2

A = (pi)64a^12

A = 64pia^12

5 0
2 years ago
Distribute Terms<br> -5(x +2)
Arturiano [62]

Answer:

-5x-10

Step-by-step explanation:

7 0
3 years ago
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