Evaluate f(-2) where f(x)=2x^3-x^2+3
Answer:
f(-2) = -17
Step-by-step explanation:
All f(-2) means is to substitute x for -2. Therefore,
2(-2)^3 - (-2)^2 + 3
2(-8) - 4 + 3
-16 - 1
-17
Please help.
Is algebra.
PLEASE HELP NO LINKS OR FILES.
I don't want links.
help
me
please
(WILL GIVE BRAINLIEST)
Answer:
3
Step-by-step explanation:
Answer:
this is quite easy. just count the markings that are not in the 1 ounce or 2 ounce sections. in this problem, there are 5 bottles in total and 2 of them are either in the 1 ounce or 2 ounce section. this leaves 3 bottles. (also make sure you count the ones above and below the areas specified)
Find the value of x to the nearest tenth. In a triangle, one angle is 46 degree and second angle is 20 degree. The adjacent side of 46 degree angel is 7 and opposite side is x.
The value of x in the triangle is approximately 7.2 to the nearest tenth.
To determine the value of x in the triangle, we can use the trigonometric ratio of tangent (tan).
We are Given that one angle of the triangle is 46 degrees and the adjacent side to this angle is 7, we need to find the length of the opposite side (x).
The tangent of an angle is defined as the ratio of the length of the opposite side to the length of the adjacent side.
tan(46°) = x/7
Take the tangent of both sides of the equation:
tan(46°) = x/7
Multiply both sides by 7 to isolate x:
7 x tan(46°) = x
Use a calculator to find the tangent of 46 degrees:
tan(46°) ≈ 1.0355
Multiply 7 by the approximate value of the tangent:
7 x 1.0355 ≈ 7.249
Rounding the value of x to the nearest tenth, we find that x ≈ 7.2.
Therefore, to the nearest tenth, the value of x in the triangle is approximately 7.2.
Learn more about trigonometric;
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The value of x to the nearest tenth is approximately 5.0.
To find the value of x, we can use the trigonometric relationship of the sine function in a right triangle. In this case, we have an angle of 46 degrees and the opposite side x.
The sine function is defined as the ratio of the length of the opposite side to the length of the hypotenuse. However, in this case, we don't know the length of the hypotenuse, but we can still find the value of x using the adjacent side.
Let's label the angle of 46 degrees as A, the adjacent side as B, and the opposite side as C.
sin(A) = C / B
sin(46°) = x / 7
To find the value of x, we can rearrange the equation:
x = 7 * sin(46°)
Using a calculator, we can evaluate sin(46°) and calculate the value of x:
x ≈ 7 * 0.7193
x ≈ 5.0351
for such more question on right triangle
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The college dean obtains an alphabetical list of full-time students at her college and she selects the 26 names on that list and interviews those students to find them. Amount of student debt incurred by each of them. She uses the results to estimate the average (mean) amount of student debt incurred by college students in the united states. What type of sampling is used?
Answer:
The right approach is "Systematic sampling".
Step-by-step explanation:
Some kind of probabilistic sampling system where population or sampling units from some kind of broader group have been randomly chosen, although at a predetermined periodic interval, is termed as Systematic sampling.Where there would be a moderate possibility of information manipulation, it's indeed better to simply such samples.The discriminant of the function f(x) = 2x2 – 3x + 3 is -15.
What is true about the function?
Answer:
The function has two unequal, complex roots
Step-by-step explanation:
Because the discriminant is negative, the function has two unequal, complex roots.
A cook makes vegetable barley soup by mixing 2 pounds of barley into 7 quarts of vegetable broth. Assume that the cook continues to use the same rate to make more batches of soup. How many pounds of barley soup should the cook mix with 35 quarts of broth?
Answer:
10 lbs
Step-by-step explanation:
7 qts x 5 qts = 35 qts broth
2 lbs x 5 lbs = 10 lbs barley
what is the value of the expression 5/6 - 2/5(4 - 1/2)?
A. -17/30
B. 91/60
C. -38/30
D. 21/2
pls answer quickly im doing a test.
Help!! Any effort is very much appreciated
Answer:
-2
Step-by-step explanation:
Gradient/slope = [tex]\frac{-1-19}{16-6} = \frac{-20}{10} = -2[/tex]
Please help 8th grade algebra here's the problem #16 GEOMETRY The volume of a rectangular prism is 3x3 + 34x2 + 72x – 64. If the
height is x + 4, what is the area of the base of the prism?
I’m really bad at areas and I need this by tonight
Answer:
here is a link
Step-by-step explanation:
https://socratic.org/questions/the-volume-of-a-rectangular-prism-is-3x-3-34x-2-72x-64-if-the-height-is-x-4-what#374628
PLEASE HELP 50 POINTS
The angle measurements in the diagram are represented by the following expressions.
Answer:
30°Step-by-step explanation:
A and B are same side interior angles and hence supplementary:
m∠A + m∠B = 180°Substitute values and solve for x:
6x - 18 + 14x + 38 = 18020x + 20 = 18020x = 160x = 160/20x = 8Find the measure of ∠A:
m∠A = 6*8° - 18° = 30°WILL GIVE BRAINLIEST
Linda Griffith is planning to buy rental property. She finds a home priced at
$92,000. What is the amount of Griffith's mortgage loan if a down payment
of 10% is required?
a$81,800
b$81,900
c$82,500
d$82,800
There are 7 yellow marbles, 6 blue marbles, 5 green marbles and 3 red marbles. What is the probability of drawing a red and then a blue marble
WITHOUT replacement?
Answer:
3/70
Step-by-step explanation:
P(R,B) no replacement: 3/21 x 6/20 = 1/7 x 3/10 or 3/70 reduced
3y to the power of two + 14y
Answer:
23y
Step-by-step explanation:
3y² + 14y
9y + 14y
23y
Answer: (3y+2)(y+4)
Step-by-step explanation:
3y^2 +14y
This question would factor to:
(3y+2)(y+4)
Johnny can build 3 1/2 lego planes in 60 minutes. How many can he build in 40 minutes?
the answer needs to be a mixed fraction
2 1/3 Lego planes every 40 minutes
When Jennifer and Tom visit another country, they find two types of coins are used there, one with a Q on it and one with an E on it. Jennifer has 13 Q coins and Tom has 5 Q coins and 7 E coins. If Jennifer's coins have a total value of $0.65 and Tom's coins have a total value of $3.75, what is the value of each type of coin?
Answer:
q = $0.05
e = $0.5
Step-by-step explanation:
13q = 0.65 equation 1
5q + 7e = $3.75 equation 2
in equation 1, divide both sides of the equation by 13
q = 0.65 / 13 = 0.05
Substitute for the value of q in equation 2
5(0.05) + 7e = 3.75
0.25 + 7e = 3.75
collect like terms
3,75 - 0.25 = 7e
3.5 = 7e
e = 0.5
Please help me with this question
Answer:
If you know the area of one triangle, then you can multiply it by 2 to get the area of the parallelogram, because the other triangle is congruent.
B=cos-1(16) as a decimal
evaluate functions from their graphs
Answer:
what graphs i don't see any
Step-by-step explanation:
?????
i need this answer asap (as soon as possible) i spelled it so the ones who dont know what asap means:/
Answer:
3 root 2, a
Step-by-step explanation:
goodluck on your test
Milton bought a bike that costs 84.21. THe sales tax rate is 6% How much did miltion pay for the bike altogether??
Answer:
$89.26
Step-by-step explanation:
Before Tax Price: $84.21
Sale Tax: 6.00% or $5.05
After Tax Price: $89.26
What is the area of sector GPH?
The area of sector GPH is
=____square yards.
Answer:
sector GPH = 16π yd²
Step-by-step explanation:
area of full circle = πr² = (π)(12²) = 144π yd²
area of 40° segment = (40/360)(144π) = 16π yd²
please help me solve for the area
Answer:
-9
Step-by-step explanation:
why not
Answer:
5x4x9=180 then 4 divided by 2 is 2 then 2x180 you get the answer
Step-by-step explanation:
PLEASE HELP!!! I have no clue how to find the perimeter of MNP
Answer:
130
Step-by-step explanation:
Triangle MNP is twice the size of triangle SRP. So 2(x+4)=5x-34.
Distribute: 2x+8=5x-34
Add 34 on both sides: 2x+42=5x
Subract 2x on both sides: 42=3x
Divide both sides by 3: 14=x
If x=14, then 5x-34
is 5(14)-34=70-34=36.
The perimeter of the triangle MNP is
MN+NP+PM.
MN is 36
NP is doubled the 22 because triangle MNP is twice the size of triangle MQS. So NP is 44.
PM is doubled the 25 because triangle MNP is twice the size of triangle QNR. So PM is 50.
The perimeter of the triangle MNP is
MN+NP+PM
=36+44+50
=130
Please help, 25 points. Will mark brainliest if correct :)
Answer: The answer to this question is measure of angle DGE = 1/2 (measure of arc DGE - measure of arc DE).
Step-by-step explanation:
The formula for an angle outside of the arc can be written as measure of angle x is equal to the larger arc starting from the ends of the segments forming x subtracted to the smaller arc starting from the ends of the segments forming x divided by 2.
PLSS HELP IMMEDIATELY!!!!!!!!!!!!!! ILL MARK U BRAINIEST IF U DONT GUESS OR LEAVE A LINK!!!!!!!!!!!!
Help I’ll give brainliest!
Answer:
Undefined
Step-by-step explanation:
Gradient/slope = [tex]\frac{8-3}{2-2} = \frac{5}{0}[/tex] (change in y / change in x) = Undefine
Somebody please help
evaluate 5^28·5^-32·5^-4
A. 17,920
B. 0.017920
C. 0.000256
D. 0.00000256
Answer:
D 0.00000256
Step-by-step explanation:
[tex]5^{28} *5^{-32}*5^{-4}=5^{28-32-4}=5^{-8}=\frac{1}{5^{8}} =0.00000256[/tex]
Answer:
B. 0.000256
Step-by-step explanation:
5^28 . 5^- 32 . 5^ -4
= 5^( 28 - 32 - 4 )
= 5^( 28 - 36 )
= 5^- 8
= 1 / 5^8
= 1 / 390625
= 0.000256
If a1=10 and an An-1 + 4 then find the value of
05.
Answer:
26
Step-by-step explanation:
Just put n = 5 and substitute
Then a5 = a4 + 4 = a3 + 8 = a2 + 12 = a1 + 16 = 26