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Leno4ka [110]
4 years ago
11

Which of the following is the graph of the quadratic function? y=x^2+4-12

Mathematics
1 answer:
tiny-mole [99]4 years ago
5 0

Answer:

Graph B

Step-by-step explanation:

The solutions to a quadratic equation are the points on which we have the graph of the curve touching the x-axis

Now the first thing we will do here is to solve the quadratic equation graph;

x^2 + 4x -12 = 0

x^2 +6x - 2x -12 = 0

x (x + 6) -2(x + 6) = 0

(x-2)(x + 6) = 0

x = 2 or -6

So the graph that touches the x-axis at the points x = 2 and x = -6 is the solution to the quadratic equation

Graph B is the closest to what we have as answer

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70/800 as a terminating decimal
erastovalidia [21]
The answer would be 0.0875.

5 0
3 years ago
3. Caleb has $25 to spend on prizes for a game at the school fair. Lip balm costs $1.25 each, and mini-notebooks cost $2.50 each
Snowcat [4.5K]

Answer:

linear equation in Standard form that can be used to determine how many of each prize Caleb can buy is 1.25x+ 2.50y = 25

Step-by-step explanation:

Given:

Total cost spent on prizes for games = $25

Cost of one lip balm = $1.25

Cost of one mini notebook  = $2.50

A) linear equation in STANDARD FORM that can be used to determine how many of each prize she can buy.

Let the number of lip balms be x and the number of mini note books be y. Then

1.25x+ 2.50y = 25

B. Graph the equation using x- and y- intercepts.

Now by trial and error method

1.25(0)+ 2.50(10) = 25

1.25(2)+ 2.50(9) = 25

1.25(4)+ 2.50(8) = 25

1.25(6)+ 2.50(7) = 25

1.25(8)+ 2.50(6) = 25

1.25(10)+ 2.50(5) = 25

1.25(12)+ 2.50(4) = 25

1.25(14)+ 2.50(3) = 25

1.25(16)+ 2.50(2) = 25

1.25(18)+ 2.50(1) = 25

1.25(20)+ 2.50(0) = 25

Thus Caleb can buy 0,2,4,6,8,9,10,12,14,1,6,18,20 lip balms and

0,1,2,3,4,5,6,7,8,9,10 mini note books respectively

Now plotting these value in the graph, we get the below graph

3 0
4 years ago
The lines s and t intersect at point R.<br><br> What is the value of y?<br><br> y = ____
ozzi
Assuming that the angles are congruent, then y = 29.
4y - 8 = 79 + y
4y = 87 + y             Add 8 to both sides
3y = 87                  Subtract y from both sides
y = 29
7 0
3 years ago
Two-fifths of a number is decreased by three. Find the value of the expression if the number is twenty-five.
Sindrei [870]
Let's take the number as x.

two-fifths of a number = 2x / 5
decreased by 3 = (2x/5) - 3

(2x/5) - 3
(2*25/5) - 3
(2*5) - 3
10 - 3
7 
8 0
3 years ago
Read 2 more answers
Find the value of 15/4 divided by 5/8
dedylja [7]

Answer:

6

Step-by-step explanation:

15/4÷5/8

15/4×8/5

=6

3 0
3 years ago
Read 2 more answers
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