1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexxx [7]
3 years ago
14

Determine the y-intercept of the following parabola: y = (x - 3)(x + 7)

Mathematics
2 answers:
NARA [144]3 years ago
7 0

Answer:

Step-by-step explanation:

For any function, its y-intercept will be the y value when x = 0.

You can simply plug in 0 for x in the function:

y = (0-3)(0+7)

  = (-3)(7)

  = -21

Therefore, the y-intercept of this parabola is -21.

Fofino [41]3 years ago
4 0

Answer:

The y intercept is -21

Step-by-step explanation:

y = (x - 3)(x + 7)

To find the y intercept, set x =0 and solve for y

y = (0-3) (x+7)

y = -3*7

y = -21

The y intercept is -21

You might be interested in
The picture below shows a portion of a river dam:
NNADVOKAT [17]
Hello,

If you are starting with the angle of 40 degrees, you have an adjacent side and hypotenuse. Therefore, it is a cosine relationship.

We can write:

cos(40) = adj / hyp
cos(40) = x / 220

To solve for x, simply multiply 220 by the cos(40).
You can write it as:  220 cos(40)

Good luck,
MrEQ

8 0
3 years ago
Read 2 more answers
Consider the equation x+4=−2x+19. Let f(x)=x+4and g(x)=−2x+19. The graph of each function is shown. Coordinate plane with the gr
Svetach [21]

The point of intersection of both graphs will have the coordinate (5, 9).

<h3>What is the Point of Intersection of the Graph?</h3>

We are given the functions;

f(x) = x + 4

g(x) = -2x + 19

Now, the point of intersection of both graphs is when both functions are equal which is at f(x) = g(x). Thus;

x + 4 = -2x + 19

x + 2x = 19 - 4

3x = 15

x = 15/3

x = 5

Thus;

f(x) = 5 + 4 = 9

g(x) = -2(5) + 19 = 9

Thus, the point of intersection of both graphs will have the coordinate (5, 9)

Read more about Graph Intersection at; brainly.com/question/11337174

#SPJ1

4 0
1 year ago
When Cullen cleaned behind his dresser, he found 73 cents, all in nickels and pennies. There were 25 coins. How many were nickel
Georgia [21]
Let n = number of nickels, and p = number of pennies.
The number of coins is 25, so we get this equation.
n + p = 25

The value of the coins is 0.05 per nickel, and 0.01 per penny.
0.05n + 0.01p = 0.73

Now you have a system of equations.

n + p = 25
0.05n + 0.01p = 0.73

Solve the first equation for n:
n = 25 - p

Now substitute into the second equation.

0.05(25 - p) + 0.01p = 0.73

1.25 - 0.05p + 0.01p = 0.73

-0.04p = -0.52

p = 13

There were 13 pennies.
Now we substitute 13 for p in n + p = 25 to find out the number of nickels.

n + 13 = 25
n = 12

There are 13 pennies and 12 nickels.

Check: 13 pennies and 12 nickels does total 25 coins.
13 * 0.01 + 12 * 0.05 = 0.13 + 0.60 = 0.73
The value is $0.73.
Our answer is correct.
5 0
3 years ago
12 girls are having a sleepover at a house, the food there can last them for 10 days. If 3 more girls came over, how long will f
FrozenT [24]

Answer:

The answer is 8

Step-by-step explanation:

12*10=120 120/15=8

8 0
3 years ago
I need to find the unit rate for all three of these, if anyone could help me that’d be great! I’ll even mark as brainliest!!
Hunter-Best [27]

Answer:

5b: 14 feet per second

4: 25 students per classroom

5a: 1 Cups of flour per Cups of sugar

Step-by-step explanation:

help this helps

7 0
3 years ago
Other questions:
  • Help please i suck at geometry
    11·1 answer
  • What statement describes the relationship between ∆ XYZ and ∆ X'Y'Z'?
    8·1 answer
  • Mode,median,range,and mean ,which measure of center represents the situation
    15·1 answer
  • Zareen has 24 minutes to work on her math homework in each problem is taking her 2/3 of a minute on average to complete which ex
    5·1 answer
  • What is the slope-intercept equation of the line below?​
    13·1 answer
  • What -8 and then minus -3 and then plus 10 and then times 2
    15·2 answers
  • 0.9 (13) - 1.7 (3) =
    12·1 answer
  • What is X equaled to
    14·1 answer
  • Please Help Me, Y=15-X?
    7·1 answer
  • What is the solution set of -|-x| = -12?<br> O no solution<br> O {-12}<br> O {12}<br> O {-12, 12}
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!