Answer:
D and B
Step-by-step explanation:
2) (59.6)/180 * pi=1.04
the coefficient of x in -7xy is -7
Answer:
True: the leading coefficient in the monomial is -7
Step-by-step explanation:
Math
2. A regular work week is 40 hours. Overtime pay is time and one-half (T+). [10 Marks]a) Amukoshi drives a truck for N$16,50 an hour. If he works 52 hours, what would his gross earnings be for one week?
find overtime hours:
52-40 = 12
Multiply regular hours by rate:
40 x 16.50 = 660
Multiply rate by 1.5 x overtime hours:
16.50 x 1.5 x 12 = 297
Total = 660 + 297 = 957
Total = $957
Find the slope of the line passing through the points D (10, 8) and E (-4,4)
Answer:
Slope=2/7
Step-by-step explanation:
Slope=rise/run
[tex]rise = 8 - 4 = 4 \\ run = 10 - ( - 4) = 14 \\ slope = \frac{4}{14} = \frac{2}{7} [/tex]
Can someone help me with this math homework please!
Answer:
The graph for a member's yearly cost for total game tokens purchased would have a y-intercept of (0, 60). However, the nonmember's yearly cost would have a different y-intercept of (0,0). This is because the member's yearly cost has a yearly initial fee of $60, while as the nonmember yearly cost doesn't include an inital fee. Also, the graph for the nonmember's yearly cost would be steeper than the member's graph because the slope 1/5 is greater than 1/10.
Hope this helps (●'◡'●)
The fractions 1/10 and 1/5 convert to 0.1 and 0.2 respectively.
So the equations y = (1/10)x+60 and y = (1/5)x are the same as y = 0.1x+60 and y = 0.2x in that order.
We see that the nonmember cost graph is steeper since the slope 0.2 is larger than 0.1; the further we move away from 0, the steeper the slope. A steeper slope means that you pay more per token. This is the unit cost.
Specifically, you would pay 0.20-0.10 = 0.10 more dollars per token if you are a nonmember compared to if you are a member.
---------------------------
Also, notice that the y intercepts of y = 0.1x+60 and y = 0.2x are 60 and 0 in that order. The members pay an up front fee of $60 before they can buy any tokens. Nonmembers don't have to pay an upfront cost.
Visually, the graph for the members will be much higher up compared to the nonmembers graph. Both lines are increasing, but the members graph is increasing less overall. At some point, the two lines intersect. After this point, it makes more sense to be a member.
If f(x)= 2x^2+1, what is f(x) when x=3
Hey there!
f(x) = 2x^2 + 1
y = 2x^2 + 1
y = 2(3)^2 + 1
3^2
= 3 * 3
= 9
y = 2(9) + 1
2(9) = 18
y = 18 + 1
y = 19
Answer: y = 19
Good luck on your assignment and enjoy your day!
~Amphitrite1040:)
The answer is:
f(3) = 19
Work/explanation:
To evaluate the function, I plug in 3 for "x" :
[tex]\rm{f(x)=2x^2+1}[/tex]
[tex]\rm{f(3)=2(3)^2+1}[/tex]
Then, I square 3:
[tex]\rm{f(3)=2\times9+1}[/tex]
Take caution here; we do not add 9 + 1, we multiply 2 times 9 first, and only then, we add 1.
[tex]\rm{f(3)=18+1}[/tex]
[tex]\rm{f(3)=19}[/tex]
Hence, the answer is f(3) = 19.A political party sends a mail survey to 1500 randomly selected registered voters in a community. The survey asks respondents to give an opinion about the job performance of the current President. Of the 1500 surveys sent out, 480 are returned, and of these, only 120 say they're satisfied with the President's job performance. The sample is the:
Answer:
B
Step-by-step explanation:
The sample is
A) the voters in his district.
B) the 1500 randomly selected voters receiving the questionnaire.
C) the 120 voters surveyed that are satisfied with the president's job performance.
D) the 480 surveys returned.
ANSWER QUICKLY PLEASE AND THANKYOU!
Find the equation of the line for each situation.
1) a line passing through the point (3, 4) and having a slope of -2
2) a line passing through the points (1, -1) and (9, 3)
I'll mark your answer as the brainiest idc I'm just stumped
2. Formulate the following problems as a pair of equations, and hence find their solutions: (1) Ritu can row downstream 20 km in 2 hours, and upstream 4 km in 2 hours. Find her speed of rowing in still water and the speed of the current.
Answer:
her speed in still water = 11 km/hour
the speed of the current = 9 km/hour
Step-by-step explanation:
x = Ritu's speed of rowing.
y = the sites of the river water flowing
x + y = 20 km / 2 hours = 10 km / hour
x - y = 4 km / 2 hours = 2 km / hour
x = 2 + y
2 + y + y = 20
2y = 18
y = 9 km/hour
x = 2 + y = 2 + 9 = 11 km/hour
Speed of water while upstream is (x + y) km/hr,
downstream is (x – y) km/hr,
2(x + y) = 20 x + y = 10 ………… (i)
2(x – y) = 4 x – y = 2 …………… (ii)
By Adding eqn. (i) and eqn.x + y = 10
x - y = 2
_______________
x = 12
[tex]x = \frac{12}{2} = 6[/tex]
(ii), Substituting the value,
x = 6 in eqn.(i), x + y = 10 6 + y = 10 y = 10 – 6
∴ y = 4
∴ Speed of Ritu in still water, x = 6 km/hr. in current water, y = 4 km/hr.
PLEASE ANSWERRRRR UR SO COOL IF YOU DOOOO PLSSSS
Answer:
3x-7y and -7y+ 3x
Step-by-step explanation:
3x + (-7y) = (-7y) + 3x
Answer:
Step-by-step explanation:
The first set of expressions are equivalent; they are identical except for order of the terms.
Since a sample data shows that a linear correlation coefficient between two variables is about 0.08, then it rules out a possible causal relationship between the two variables.
Answer:
False
Explanation:
A linear correlation coefficient is used to measure the the level of relationship between two seemingly dependent and independent variables. A relationship exists between two variables in linear correlation if one affects the other, either negatively or positively never zero. If linear correlation has a negative value then one variable increases while the other decreases. If linear correlation coefficient is positive then both variables increase together. If zero then there is no relationship as one variable's increase or decrease has nothing to do with the other. In the case above, correlation is positive at 0.08 hence we can say that there is a relationship between the two variables.
Select the relationship that does represent a function.
Answer:
c
Step-by-step explanation:
The length of a boat in scale drawing is 8 in. Find the length of the actual
boat if the scale is 1 in = 3 ft.
A)24 in
B.)24 ft
C.) 8 ft
D.) 11 in.
Answer:
B. 24 ft
Step-by-step explanation:
1 in = 3ft
8 in must equal 24 ft since 8 in x 3 ft is 24 ft. So, B.
The length of the boat will be equal to 24 ft.
What is the scale factor?The scale factor is defined as the proportion of the new image's size to that of the previous image. decision-making.
Given that:-
The length of a boat in scale drawing is 8 in. Find the length of the actual boat if the scale is 1 in = 3 ft.The actual length will be calculated as follows:-
1 in = 3 ft.
8 in = 8 x 3 ft
8 in = 24 ft.
Therefore the length of the boat will be equal to 24 ft.
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[tex]x^{2} -11x=-28[/tex]
Answer:
x = 4, 7
Step-by-step explanation:
We start off with the equation [tex]x^{2} -11x = -28[/tex]. from there, we can add 28 to both sides to get [tex]x^{2} -11x+28 = 0[/tex]. From there, we have to factor the equation. In order to factor it, we have to ask ourselves what 2 numbers would add up to -11 and multiply to 28? In this case, the answer would be -7 and -4. So, we get the equation (x-7)(x-4) = 0. Then, we set each part of the equation = 0 to get the anwsers x = 4 and 7. Hope this helps!
Answer:
x= 7
x= 4
Step-by-step explanation:
Move terms to the left side
2−11=−28
x^{2}-11x=-28x2−11x=−28
2−11−(−28)=0
Use the sum-product pattern
Identify a, b, and c in your equation and then find two numbers that when multiplied together equal c and when added together equal b.
2−11+28=0
Factor
Write your equation in factored form
(−7)(−4)=0
Create two separate equations
Set each factor equal to zero
−7=0
x-7=0x−7=0
−4=0
Solve
Rearrange and isolate the variable to find each solution
=7
x=7x=7
=4
Solution
=7=4
Ronald's home is located 33 miles west and 56 miles north from his hotel. Find the distance from his hotel to his home.
The distance from his hotel to his home is 89 miles.
What is the distance?Distance is defined as an object's entire movement without regard for direction. The distance can be defined as how much ground an object has covered regardless of its starting or ending place.The quantity of space between two things, or the state of being far apart, is defined as distance. A five-foot gap between two tables is an example of distance. The disparity between two sides of an issue is an example of distance.Solution -Given - Ronald's home is located 33 miles west and 56 miles north of his hotel.
To find the distance between Ronald's hotel to his home, add the distance.
∴ [tex]33 + 56 = 89[/tex]
Therefore, the distance from his hotel to his home is 89 miles.
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Which of the following is equal to
square root symbol 9•4
Answer:
sqrt(9) sqrt(4)
Step-by-step explanation:
sqrt(9*4)
We know that sqrt(a*b) = sqrt(a) sqrt(b)
sqrt(9) sqrt(4)
Answer:
The answer would be B
Step-by-step explanation:
Rationalise the denominator as per necessary and simplify.
Answer:
[tex]8\sqrt{7}[/tex]
Step-by-step explanation:
[tex]\frac{21}{\sqrt{7} } * \frac{\sqrt{7} }{\sqrt{7} }[/tex] = [tex]\frac{21\sqrt{7} }{7}[/tex]
[tex]\frac{21\sqrt{7} }{7}[/tex] = [tex]\frac{147\sqrt{7} }{14}[/tex]
[tex]\frac{147\sqrt{7} }{14} - \frac{35\sqrt{7} }{14}[/tex]
[tex]\frac{112\sqrt{7} }{14}[/tex]
[tex]8\sqrt{7}[/tex]
C=-(251x3+281)+3X251-(1-281)
Answer:
-1
Step-by-step explanation:
=-251x3+281 +251x3-1+281
=-1
help me solve this percentages and prices. (show your work)
Answer:
$34.50
$1.01
Step-by-step explanation:
For these two problems, you must find a percent of a number. Since percentages can easily be turned into decimals, this is easy to do. First, turn the percent into a decimal by moving the decimal point two to the left; so, 6.25% becomes 0.0625. Then, multiply this number by the cost, 32.47. Finally add that, 2.02, to the cost to get the final answer, $34.50. For the next question do the same. Turn the percent into a decimal and then multiply that by the cost to get the total tax, $1.01.
need help asap pleaseeeeeeeeeeeeeeeeeeeeeeeeeee
PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
9514 1404 393
Answer:
4a. 177
4b. 248
5a. 27
5b. 9
5c. 12
Step-by-step explanation:
4.a) x is 3/4 of 1/2 of all, so is 3/8 of all.
x = 3/8·472
x = 177
b) x is 2/5 of 2/3 of all, so is 4/15 of all.
x = 4/15·930
x = 248
__
5.Elaine gave her grandmother 3/4 of 48 = (3/4)(48) = 36 of the flowers. Then Elaine had 48 -36 = 12 flowers left.
Her grandmother gave 1/4 of 36 flowers = (1/4)(36) = 9 of the flowers to her neighbor. Elaine's grandmother has 36 -9 = 27 flowers now.
Elaine's grandmother has 27 flowersthe neighbor has 9 flowersElaine has 12 flowersPlease help me on this one really need it
Find the value of x.
A. 70
B. 30
C. 65
D. 40
Answer:
Option (A)
Step-by-step explanation:
From the figure attached,
By applying triangle sum theorem in ΔBCP,
m∠CBP + m∠CPB + m∠BCP = 180°
15° + 20° + m∠BCP = 180°
m∠BCP = 145°
m∠ACB + m∠BCP = 180° [Linear pair of angles are supplementary]
m∠ACB + 145° = 180°
m∠ACB = 35°
Since, ∠ACB is the inscribed angle and AB is the intercepted arc.
Therefore, m(arc AB) = 2m(∠ACB)
m(arc AB) = 2 × 35°
= 70°
Therefore, Option (A) is the correct option.
Find the first three terms of the arithmetic series described.
n=15, a_n=4/5, S_n=45
Answer:
Step-by-step explanation:
What is the value of A when we rewrite (1/8)^x + (1/8)^x-2 as A x (1/8)^x
Answer:
-63
Step-by-step explanation:
Given the expression:
[tex](1/8)^x + (1/8)^{x-2}[/tex]
Using the law of indices, this can be written as:
[tex](\frac{1}{8})^x-(\frac{1}{8} )^x * (\frac{1}{8})^{-2}\\(\frac{1}{8})^x (1-(\frac{1}{8})^{-2})\\(\frac{1}{8})^x(1-8^2)\\(\frac{1}{8})^x(-63)\\-63(\frac{1}{8})^x\\[/tex]
This shows that the value of A is -63
Answer:
EVERYONE THE ANSWER IS …. 65
Step-by-step explanation:
I did the quiz I hate it :(
Which of the following could be the first step in solving the equation below ? 5 ^ x = 21
Answer:
D
Step-by-step explanation:
usually when your variable is an exponent you always take the log of both sides.
The possible first step of solving the equation is log 5^x = log 21
How to determine the first step?The equation is given as:
5^x = 21
Take the logarithm of both sides of the equation
log 5^x = log 21
The above represents the possible first step of solving the equation
Hence, the possible first step of solving the equation is log 5^x = log 21
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Which of the following points is not a solution of the inequality y ≥ |x| + 3?
(-3, 6)
(0, 4)
(-3, 0)
========================================================
Explanation:
If we plug the coordinates of point A into the inequality, then we get
y ≥ |x| + 3
6 ≥ |-3| + 3
6 ≥ 3 + 3
6 ≥ 6
Which is true. Since we're looking for a non-solution, we rule out choice A.
You should find choice B is a similar story to choice A, so we can rule this out as well.
-----------
Choice C is the answer because
y ≥ |x| + 3
0 ≥ |-3| + 3
0 ≥ 3 + 3
0 ≥ 6
which is false.
Check out the graph below and notice how point C is not in the shaded solution region, and it's not on the boundary either. This is a visual way to quickly find the answer.
The boundary line y = |x|+3 is solid because of the "or equal to". We shade above the boundary line due to the greater than sign.
HELP ANSWER QUICKLY! the one selected is wrong.
Answer:
±2 sqrt(2) / 3
Step-by-step explanation:
cos theta = adj / hyp
cos theta = 1/3
Using the Pythagorean theorem
a^2 + b^2 = c^2
opp ^2 + adj ^2 = hyp ^2
opp ^2 + 1 ^2 = 3^2
opp ^2 +1 = 9
opp ^2 = 9-1
opp ^2 = 8
Taking the square root of each side
opp = ± sqrt(8)
opp = ±2 sqrt(2)
sin theta = opp / hyp
= ±2 sqrt(2) / 3
add 7 with the diffrence of 12 and 9 =
Answer:
7+3 = 10
Step-by-step explanation:
if I understand the problem strangeness right, and there is nothing missing in it, then this is the simple answer.
the difference of 12 and 9 is 12-9 = 3.
and then adding this 3 to 7 is 7+3 =10
Answer:
10
Step-by-step explanation:
The difference of 12 and 9 is 3.
Now,
If we add 7 to 3, the answer is 10.
53:45
What is the equation of the line that is parallel to the line x=-2 and passes through the point (-5, 4)?
6 m.
O x= -5
O x = 4
O y=-5
O y = 4
Marks and rem
Save and Exit
ed
Answer:
x=-5
Step-by-step explanation:
any line parallel to x=a is x=b
line parallel to x=-2 is x=-5
The equation of the line is x = -5.
What is the Linear equation?A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are included. Sometimes, the aforementioned is referred to as a "linear equation of two variables," with y and x serving as the variables.
The line x = -2 is a vertical line passing through the point (-2, y) for all y. Since we want a line parallel to this line, it must also be a vertical line.
Therefore, the equation of the line that is parallel to x = -2 and passes through the point (-5, 4) is simply x = -5.
So the answer is x = -5.
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Avery can sweep the deck in 5 minutes and Madeline can do it in 7 minutes. How long will it take them to do it together?
Avery in 5 minutes sweeps 1 deck, so in 1 minute she sweeps 1/5 of the deck
Madeline in 7 minutes sweeps 1 deck so in 1 minute she sweeps 1/7 of the deck.
1/5 + 1/7 = 7/35 + 5/35 = 12/35
Together they will sweep 1 deck in x minutes : 1/x
12/35 = 1/x =
X = 35/12 = 2.92 minutes. ( round the answer as needed)
What is the volume of the cylinder below?
A. 196pi units3
B. 784pi units3
C. 98pi units 3
D. 112pi units 3
Answer:
196π units^3
Step-by-step explanation:
The volume of a cylinder is:
πr^2h
SINCE, there is no given pi, the formula will be:
r^2h
Use the formula on the given dimensions:
r^2h
= (7^2) 4
= (49) 4
= 196
So we could just leave the final answer as:
196π
The real volume will be solved once π is given.
I hope I helped!
The volume of the cylinder given is 196 π, Option A is correct.
The volume of the cylinder is given by V=πr²h
Where r is radius of cylinder and h is the height of the cylinder.
V is the volume
r=7
h=4
Now plug in these values in volume formula.
V=π(7)².4
=π.49.4
V=196π
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