Consider the quadratic function f(x) = −² − 3x + 10.Determine the following: (enter all numerical answers as integers, fractions, or decimals):
The z-intercepts are
The y-intercept is
The vertex is
The line of symmetry has the equation
Give your answers as points, separated by a comma
Give your answer as a point.
Can someone help me please. Precalc is hard!!!
Answers
2. the y-intercept is (0, 10)
3. the vertex is (-0.75, 10.75)
4. the line of symmetry has the equation x = -0.75
Related Questions
Suppose v varies directly as g, and v=36 when g=4. Find v when g =11
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What is 6.54 as a mixed number
What type of number is 3.75i+7
Answers
Here, it's a percent of the original prize, so the discount is 20% of the original prize, that is 20% of 35.
20% is also 20/100 or 1/5, so we can calculate this like this:
so the discount is 7 dollars.
Answers
The first way is logically.
Mary can
-wear a pink dress with black shoes -wear a pink dress with white shoes
-wear a blue dress with black shoes -wear a blue dress with white shoes
-wear a yellow dress with black shoes - wear a yellow dress with white shoes
Count them up, and you'll get six combinations!
Another way is simply mathematically, which is easier in my opinion.
3 (different colored dresses) × 2 (different colored shoes) = 6 (combos)
- Show work
- Explain if you can't show work why this answer is correct.
- And make sure not to post random answers points are taken away when you are reported so don't think about answering it if you want only just want points to move up.
1. What is the quotient in the expression c = ?
A)
B) d
C) 45
D) c
2. The grocery store has 8 snack bags. There are 3 bagels and 4 muffins in each bag. How would you calculate the total number of muffins?
A) Multiply 8 by the sum of 3 and 4
B) Multiply 8 by 3
C) Multiply 8 by 4
D) Add, 3, 4, 8
3. The box holding the instruments for science class is square. The box measures 15 inches by 15 inches and is 2 inches deep. This means that the volume of the box is “15 times 15 times 2” cubic inches. Which of the following formulas is an equivalent expression for “15 times 15 times 2”?
A) (15 x 2)^2
B) 15^2 x 2
C) 2^2 x 15
D) (15 x 15)^2 x 2
Answers
1. D) c (because the quotient is the number obtained by dividing one number by another.)
2. C) Multiply 8 by 4 (There are 8 snack bags with 4 muffins in each.
Multiply 8 x 4) to find the total number of muffins.
3. B) 15^2 x 2 (he expression “15 times 15 times 2” can be written as: 15 x 15 x 2 or 15^2 x 2)
1. What is the quotient in the expression c = \frac{45}{d}?
Quotient is the result of dividing 2 numbers.
Answer: D). c
2. The grocery store has 8 snack bags. There are 3 bagels and 4 muffins in each bag. How would you calculate the total number of muffins?
C) Multiply 8 by 4
3. The box holding the instruments for science class is square. The box measures 15 inches by 15 inches and is 2 inches deep. This means that the volume of the box is “15 times 15 times 2” cubic inches. Which of the following formulas is an equivalent expression for “15 times 15 times 2”?
B) 15^2 x 2
Answers
Answer:
- x = - 6
Step-by-step explanation:
A hole is an input value that makes both numerator and denominator equal to zero.
Let's factorize the numerator and denominator:
- 3x² - 108 = 3(x² - 36) = 3(x + 6)(x - 6)
- x² + 2x - 24 = x² + 6x - 4x - 24 = x(x + 6) - 4(x + 6) = (x - 4)(x + 6)
We have same factor of x + 6:
- x + 6 = 0
- x = - 6 is a hole
Factor denominator to 0
- x²+2x-24=0
- (x+6)(x-4)=0
- x={-6,4}
Factor numerator
- 3x²-108=0
- 3(x²-36)=0
- 3(x+6)(x-6)=0
- x={-6,6}
x=-6 is the hole as it's common
Show the correct solution:
Answers
HE CAN CHECK HIS ANSWER BY PLUGGING IN HIS X VALUE, AFTER HE GETS THE CORRECT ANSWER.
SHOW THE CORRECT ANSWER:
3(3x+6) = 4(7x-1)
9x+18 = 28x-4
18 = 19x-4
22 = 19x
22/19 = x
CHECK:
3(22/19+6)/8 = 7(22/19-1)/6
45/38 = 45/38 ( Is true)
hope this helps!!
Well, first of all, the bottom 2 lines are cut off of the bottom of Max's solution,
and his final answer doesn't even appear there.
Here . . . let me complete it for you:
Under the part printed on the page should be:
19 = 19x
x = 1
=========================================
Now that Max has an answer, he can check it by writing it into the
original equation wherever there's an 'x' there.
The original: (3x-6) / 8 = (7x-1) / 6
With Max's answer written in: (3·1 - 6) / 8 = (7·1-1) / 6
Simplify the left side: (3 - 6) / 8 = (7·1-1) / 6
-3/8 = (7·1-1) / 6
Simplify the right side: -3/8 = (7-1) / 6
-3/8 = 6 / 6
-3/8 = 1
This result is not a true statement,
so 'x' can't be ' 1 '.
We have to go back, look through Max's work, and find his mistake.
(Actually, Max won't learn anything that way ... MAX should be looking through
his work to find his mistake. But life is not always fair.)
The third line of Max's solution is 3 (3x + 6) = 4 (7x - 1)
Then he goes on to clear the
parentheses, and the next line is: 9x + 18 = 28x - 1
That's where his mistake is. The left side is correct,
but on the right side, Max distributed the '4' incorrectly.
Shame on Max.
This line should be 9x + 18 = 28x - 4 .
what’s the median?? or how do you find out the median so i can learn.
Answers
Answer:
is 7.5 hope i help
Step-by-step explanation:
u put them in order from least to greatest
1 , 4, 6, 9, 15, 19
then take out one number from each side after that u are left with 6 and 9 and whats in the middle of does two numbers ? well u just estimate and it might be 7.5