Which of the following expressions are polynomials?
Select all that apply.
O 3x2 – 7y
2 - 8y
3x-2 + y
4x² - 9
The expressions 3x² - 7y, 2 - 8y, 4x² - 9 are polynomilas.
What is apolynomial?A polynomial is an algebraic expression of degree n where n belongs to whole numbers.
A polynomial of degree n can be written as a₀xⁿ + a₁xⁿ⁻¹ + a₂xⁿ⁻² + ... + aₙ.
Given, are 4 polynomials 3x² - 7y it is a polynomial because it has powers that are in whole numbers and it is of degree 2 in variables x and y.
2 - 8y is also a polynomial as the degree of y is 1 and it is a whole number.
3x⁻² + y is not a polynomial as the degree of x is - 2 and it is not a whole number.
4x² - 9 is also a polynomial as it has a degree of 2 a whole number.
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use a protractor to find the angle measure picture is added
Who is life insurance best suited for?
A. Children
B. People with debt
C.Doctors
D. College students
x- 6= -10
what does x=
A hexagon with a perimeter of 24 inches is reduced by a scale factor of
13. What is the perimeter of the new hexagon?
How do you locate and label fractions on the number line
Answer:
2 3 4 parts because it is split into 4 parts you know your denominator. Will be 4. Now let's look at the blue number line this number line is split into.
Step-by-step explanation:
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Fill in the blank
One way is solving by graphing which uses the coordinates of the point of as the answers.
Answer:
dont click that link report it
Step-by-step explanation:
Write your answer in standard form. (6x+7) (x-8)
a. 6x^2-24x-56
b. 6x^2+7x-56
c. 6x^2+21x+56
d. 6x^2-41x-56
(w+3)(w-3)
a. w^2+3w-3
b. w^2
c. w^2-9
d. w^2+w
Answer:
First one is d and second one is c
Step-by-step explanation:
(6x+7)(x-8)
(6x)(x) = 6x^2
(6x)(-8) = -48
(7)(x) = 7x
(7)(-8) = -56
Add all like terms together and you get choice d.
(w+3)(w-3)
(w)(w) = w^2
(w)(-3) = -3w
(3)(w) = 3w
(3)(-3) = -9
Add all like terms together and you get choice c
Answer:
(6x+7)(x-8)=6x^2-41x-56
Step-by-step explanation:
(6x+7)(x-8)
Apply FOIL method: (a+b)(c+d)=ac+ad+bc+bd= a=6x, b=7 c=x, d=-8=6xx+6x(-8)+7x+7(-8)
Apply minus & plus rules: =6xx-6(8x+7x-7)8
simplify: 6xx-6(8x+7x-7)8=6x^2-41x-56
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7. Find the measure of angle A.
Answer: 100
Step-by-step explanation:
Well 15 + 5 = 20.
Then 20 x 5 = 100.
So 100 is the answer.
5(3+1)
Factor 5 out of 15x is 5
(3x)+5(−1)
Factor 5 out of 5 (3x)+5(-1).5(3x−1)
What is the slope of a line that goes through the points (4,-1) and (3, 8)?
Answer:
9/-1
Step-by-step explanation:
By using the formula y2-y1/x2-x1
for the second question the options are: 71034, 71034000, 710.34 and 7013.4
Answer:
[tex]0.0005[/tex] [tex]= 5 * 10^{-4[/tex]
[tex]7.1034 * 10^3 = 7103.4[/tex]
Step-by-step explanation:
Solving (a):
[tex]0.0005[/tex]
Standard form is represented as:
[tex]a * 10^n[/tex] where [tex]1 \le a \le 10[/tex]
Move the decimal point to 5 and count the number of times the decimal point is moved forward (forward represents negative).
So:
[tex]a = 5[/tex]
[tex]n = -4[/tex]
Hence:
[tex]0.0005[/tex] [tex]= 5 * 10^{-4[/tex]
Solving (b):
[tex]7.1034 * 10^3[/tex]
Express [tex]10^3[/tex] as [tex]1000[/tex]
This gives:
[tex]7.1034 * 10^3 = 7.1034 * 1000[/tex]
[tex]7.1034 * 10^3 = 7103.4[/tex]
The cost of the studios internet service is given by the formula c=90+30x, where x is the number of months of usage. What is the studios cost for 11 moths of internet?
Answer:
$420
Step-by-step explanation:
C=90+30(11)
11x30=330
330+90=420
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21 cm
Find the circumference. Round your answer to the nearest hundredth. Use 3.14 for .
.
Is AB a tangent? why or why not?
Answer:
Yes
Step-by-step explanation:
Line AB touches the circle at point B, but doesn't intersect through the circle.
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Answer:
124 degrees since all angles should equal 180 degrees.
Answer:
So if you think about it, 180° is a full angle. So if you take the 180° and subtract the 19° and the 37° you should get your remaining angle. the answer I got for the angle is 124°. To check your work, 124° + 19° + 37° = 180°
Step-by-step explanation:
Hope that this has helped you out! :)
In regression analysis, which is NOT a required assumption about the error term ε?
a) The expected value of the error term is one.
b) The variance of the error term is the same for all values of X.
c) The values of the error term are independent.
d) The error term is normally distributed.
Answer:
option number c....is correct
The distance between Dania and Hollywood is shown on the map. What is the actual distance between Dania and Hollywood?
please help it is due in 15 min
Answer:
15 miles
Step-by-step explanation:
If there are 2.5 inches and 1 inch is 6 miles, then just multiply 6 by 2.5 to get 15
6*2.5=15
HELP PLEASE!
The line y = 2x is drawn on the coordinate plane.
For the part of the line drawn between the origin and (-1, -2), what is the slope?
A. 1
B. 2
С. -2
D. -1
How many times can 25 going to 200?
8. 150 litres of water flows through a pipe in 6 minutes. Through the same pipe 200
litres of water flows in 8 minutes. Are the quantity of water flown and the time
taken are in proportion?
Answer:
Yes,they are in proportion
Step-by-step explanation:
We are told that 150 litres of water flows through a pipe in 6 minutes.
Thus means that the rate of flow = 150/6 = 25 litres/minutes
Now, we are also told that through the same pipe, 200 litres of water flows in 8 minutes. This means that the rate of flow = 200/8 = 25 litres/minutes
Now, the rate of flow is both instances is the same. Thus, we can say they are in proportion because;
Proportion of quantity in both instances = 200/150 = 4/3.
while that of time = 8/6 = 4/3
They have the same proportion
What the rate of change of the function y = 2x -3
Rate of change is 2.
Y = mx + b (m is rate of change)
In 5^2 what is the 2 called?
Is (5,0) a solution of the graphed inequality?
Answer:
Yes
Step-by-step explanation:
5,0 is a solution to the graphed inequality as it lies on the edge of the shaded area. Because the line is solid rather than dotted/dashed this means that all answers on the line will be included in the solutions. This is a graph for an inequality with one of these symbols ≤ ≥.
What is an equation of the line that passes through the points (-8, -2) and
(-4,-4)?
Answer:
-½x - 6
Step-by-step explanation:
Find the gradient first then solve for equation with unknown values of x and y
The manager of a large grocery store wants to inspect an incoming shipment of oranges to determine the
proportion of blemishes. One inspector, Mary, takes a random sample of 25 oranges, and another inspector, Pat,
takes a random sample of 50 oranges. Which of the following statements about variability of the sample proportion
is correct?
The variability of the proportion of blemishes for Mary's sample will be less than the variability of Pat's.
The variability of the proportion of blemishes for Mary's sample will be greater than the variability of Pat's.
The variability of the proportion of blemishes for Mary's sample will be the same as the variability of Pat's.
Since the two inspectors took two different samples, there is no way to compare the variability of the two samples.
Answer:
b
Step-by-step explanation:
The variability of the proportion of blemishes for Mary's sample will be greater than the variability of Pat's.
Help with this most detailed answer gets Brainliest!!!
Answer:
D) 2/3
Step-by-step explanation:
Constant of proportionality formula:
k = y/x
8/12 = 2/3
10/15 = 2/3
12/18 = 2/3
14/21 = 2/3
Circumference of the circle as 15 pi inches find the diameter
The formula for the circumference of the circle is 2πr or πd with r being the radius and d being the diameter. These 2 gives the same result because d=2r
Now because we know that the circumference is 15pi, we just need to reverse to find the diameter.
π*diameter=15*π
We can divide π from both sides.
diameter=15
Hope this helped!
PLEASE HELP
In order to paint the house, Wyatt multiplies the area of the base times the height then adds half the area of the base times the height
Explain whether or not Wyatt correctly calculated the surface area of the house.
What’s the equivalent expression for -2 (-9x + 6y)
Answer:
the expression would be: 18x-12y
Step-by-step explanation: