orapns of Polynomial Functions
Question 10 of 10
Which of the following is an x-intercept of the function, f(x) = x2 -5x2 - 8x +48
?
A. -4
o
B. 4
C. -2
O
D. 2
Answers
Answer:
Option B: 4
Step-by-step explanation:
From the image, the correct function is;
f(x) = x³ -5x² - 8x + 48
Now, the x-intercept occurs when y = 0.
Thus;
x³ - 5x² - 8x + 48 = 0
So we are looking for values of x that will make y = 0.
Let's try the options;
Let's try x = -4;
(-4)³ - 5(-4)² - 8(-4) + 48 = -64 - 80 + 32 + 48 = -64 ≠ 0
So, x = -4 is not an x - intercept
Let's try x = 4;
(4)³ - 5(4)² - 8(4) + 48 = 64 - 80 - 32 + 48 = 0
So,x = 4 is an x-intercept
Let's try x = - 2;
(-2)³ - 5(-2)² - 8(-2) + 48 = -8 - 20 + 16 + 48 = 36 ≠ 0.
So, x = -2 is not an x-intercept.
Let's try x = 2;
(2)³ - 5(2)² - 8(2) + 48 = 8 - 20 - 16 + 48 = 20 ≠ 0
So, x = 2 is not an x-intercept
Related Questions
If a Canada goose completes a $2400$-mile migration in exactly $13$ days and $8$ hours, then what was her average speed for the whole trip in miles per hour?
Answers
Answer:
7.5 MPH
Step-by-step explanation:
total hours = 320
total distance = 2400
2400/320 = 7.5mph
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Answer:
12 45 785 96
Step-by-step explanation:
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Answers:
5) 1/4
6) 2/3
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11) 3/10
12) 13/15
13) 11/12
14) 17/20
15) 1/21
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Please Mark as Brainliest :)5th grade pls help ik my pfp is my face but I look like a different grade
Answers
Answer:
18
Step-by-step explanation:
First, you divide the 10 and the 5, which leaves you with 2. Then you do 15-2+5 from left to right, and it equals 18.
(hope this helps...brainliest??)
Suppose the large number of auto accidents in a small town results in new legislation that requires all citizens of the town to install new anti-lock brakes on their cars. These new brakes cut the time it takes a car to stop by 50%, allowing drivers to avoid collisions with other cars and pedestrians more easily. The new brakes _________ the probability that a vehicle will collide with another vehicle but also give drivers an incentive to drive more _________, which could potentially __________ the number of car accidents.
a. decrease; carefully; increase
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c. increase; recklessly; increase
d. decrease; carefully; decrease
Answers
Answer:
a. decrease
b. recklessly
c. increase
Step-by-step explanation:
Suppose the large number of auto accidents in a small town results in new legislation that requires all citizens of the town to install new anti-lock brakes on their cars. These new brakes cut the time it takes a car to stop by 50%, allowing drivers to avoid collisions with other cars and pedestrians more easily. The new brakes decrease the probability that a vehicle will collide with another vehicle but also give drivers an incentive to drive more recklessly which could potentially increase the number of car accidents.
Because the new brakes cut the time it takes a car to stop by 50%, allowing drivers to avoid collision easily, drivers may become confident and drive recklessly which could potentially increase the number of car accidents
Write and algebraic expression , Twice a number n
Answers
Answer:
2(n) or 2n
Step-by-step explanation:
.................
To determine a student’s grade, a teacher throws out the lowest grade obtained on 5 tests, averages the remaining grades, and round up to the nearest integer. if betty scored 75, 90, 88, 72, and 86 on her tests, what grade will she receive?
Answers
Answer:
85
Step-by-step explanation:
add 4 values, excluding 72 (lowest grade)
total = 339
average = 330/4 = 84.75
84.75 rounding to nearest integer is 85
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Answers
Answer:
Terms: x3, 4x2, 9. Coefficients: 1, 4. Constants: 9.
Step-by-step explanation:
Answer:
Terms: addition, division, multiplication
Constants: 9 and 2
Coefficients: 4 and 3
I think these are the right answers, I am so sorry if they are wrong!!
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Answers
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Step-by-step explanation: 1*1/2 equals 1/2 which is greater than zero but less than 1
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Compound inequality:Important information:
The given expression is [tex]1\times n[/tex].The value of the expression is less than 1 but greater than 0.The compound inequality is:
[tex]0<1\times n<1[/tex]
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Board sum: 0
Reset
Answers
Answer:
-9
Step-by-step explanation:
The sum of -2 and -7 is given as follows;
-2 + (-7)
In mathematical operations, + * - is -.
So we have;
-2 - 7
This gives us: -9
Answer:
10
Step-by-step explanation:
im on enginuity leson multiplying with intager tiles qestion 4
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Answers
If you need and explanation let me know
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Answers
Answer:
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Step-by-step explanation:
The line is at -9 when it's on the y axis
It goes up 4 over 1
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Answers
Identify the coefficient in the algebraic expression 4ac-3
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-3
3
4ac
Answers
Answer:
4
Step-by-step explanation:
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Answers
Jace, who is exploring a cave that is 10 meters below the surface of the water is at - 10 meters.
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According to the given question the surface of the water is at an elevation 0 meters, which person is located at an elevation of -10 meters.
- 10 meters means below 10 meters of the surface of the water.
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0 - 10 = -10.
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Answers
Step-by-step explanation:
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Answers
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Step-by-step explanation: I did the khan and trial and error
Answer:
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Answers
Step-by-step explanation:
7
b²=√218²-13²
=218-169
=49
=√49
=7
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Answers
Absolutely Not This would be a bad business move
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A) 90
B) 92
C) 94
D) 96
Answers
Answer:
C
Step-by-step explanation:
94%
y
∝
√
x
If
y
=
56
when
x
=
49
find,
y
when
x
=
81
Answers
---------------------
Step-by-step explanation:
6x = 5y
x = 49
y = 81
given
56/49
Math practice
Will give brainest if correct
Answers
Answer:
x > 24
Step-by-step explanation:
12 + 12 = 24
can somebody help with this
Answers
Answer:
C)8
plz mark as brainliest
Answer:
c) 8
Step-by-step explanation:
Hope it helps. Pls mark as brainlest
rewrite 15 ^ 1/3 in radical form
Answers
Answer:
The answer will be [tex]\sqrt[3]{15}[/tex]
The required radical expression ∛15 is equivalent to the given expression [tex](15)^{1/3}[/tex].
What are the radical expressions?Any expression that contains a radical symbol is considered a radical expression. To find the square roots, cubic roots, and higher, radical symbols are used. For example, √7, √6, and √11 are in the radial form.
The expression is given in the question, as follows:
[tex](15)^{1/3}[/tex]
We have to determine the equivalent expression in radical form.
As per the question, we have
[tex](15)^{1/3}[/tex]
This can be also written as:
∛15
Thus, the radical expression ∛15 is equivalent to the given expression.
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Answers
Answer:
1/10
Step-by-step explanation:
6 goes in 10 times into 60 :)
Which statement about the graph y=3x+5 is correct?
Answers
Answer: D
Step-by-step explanation:
D is the only one that states the correct slope
help will mark brainiest
Answers
Answer:
I'm pretty sure the rides are 140 yards away from restrooms.
Step-by-step explanation:
Both triangles are similar, and since the first triangle both have 112 yards on the sides, you can only assume that the second triangle would be similar too, but instead being 112 yards, it would be 140 yards.
Hope this helped!
1. 1.7, 0.9, 1.07, 1.9, 0.7
6. 3.21, 3.021, 3.12, 3.121
2. 2.0342, 2.3042, 2.3104, 2.4 7. 5.5, 5.059, 5.0090, 5.05
3. 5, 5.012, 5.1, 0.502
8. 0.09, 0.012, 0.0089, 0.0189
4. 0.6, 0.6065, 0.6059, 0.6061 9. 1.3, 1.309, 1.03, 1.39
5. 12.9, 12.09, 12.9100, 12.9150 10.4.01, 4.0011, 4.011, 4.101
Answers
Answer:
3
Step-by-step explanation:
Shae is covering a wall in her bedroom with wallpaper. The measurement of the wall is 12 ft x 14 ft.
A roll of wallpaper covers 42 square feet. How many rolls should Shae purchase?
A. 4 rolls
B. 10 rolls
C. 12 rolls
D. 14 rolls
Answers
Answer:
4 rolls
Step-by-step explanation:
Area of the wall = 12 *14 = 168 square feet
1 roll = 42 square feet.
x roll = 168
1/x = 42/168 Cross Multiply
42x = 168 Divide by 42
x = 168/42
x = 4 rolls
Answer:
12 rolls
Step-by-step explanation: