Answer:
√(2x^5 / 18) = √2x^5 / √18 = √2x^5 / √9*2 = √2x^5 / 3√2 = √x^5 / 3
The square root of x^5 over the number 3 is an equivalent of the initial expression.
Find the slope m and y-intercept of the equation:
y = (-1/5)x + 7
determine the slope and the y intercept of the line 63=-9y
Answer:
-7
Step-by-step explanation:
63 divided by -9 = y
63 divided by -9 = -7
Check answers :
-9 x -7 = a
a= 63
(100 points) Select the correct answer.
Danny's 7 friends contributed an equal amount of money to buy him a birthday present. The present cost $84. How much money did each friend contribute?
A. 12
B. 36
C. 48
D. 84
Contribution per head
84/712Option A
The sample survey showed that 72% of Internet users said the Internet has generally strengthened their relationship with family and friends. Develop a 95% confidence interval for the proportion of respondents who say the Internet has strengthened their relationship with family and friends.
Answer:
The 95% confidence interval for the proportion of respondents who say the Internet has strengthened their relationship with family and friends is:
[tex]0.72 \pm 1.96\sqrt{\frac{0.72*0.28}{n}}[/tex]
In which n is the sample size of the survey.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the z-score that has a p-value of [tex]1 - \frac{\alpha}{2}[/tex].
The sample survey showed that 72% of Internet users said the Internet has generally strengthened their relationship with family and friends.
This means that [tex]\pi = 0.72[/tex]
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a p-value of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
Confidence interval:
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.72 \pm 1.96\sqrt{\frac{0.72*0.28}{n}}[/tex]
The 95% confidence interval for the proportion of respondents who say the Internet has strengthened their relationship with family and friends is:
[tex]0.72 \pm 1.96\sqrt{\frac{0.72*0.28}{n}}[/tex]
In which n is the sample size of the survey.
8. Subtract the polynomials: (3x2 + 5x – 8) – (2x2 - 4x + 3)
please give steps!!
[tex]\\ \sf\longmapsto 3x^2+5x-8-(2x^2-4x+3)[/tex]
[tex]\\ \sf\longmapsto 3x^2+5x-8-2x^2+4x-3[/tex]
[tex]\\ \sf\longmapsto 3x^2-2x^2+5x+4x-8-3[/tex]
[tex]\\ \sf\longmapsto x^2+9x-11[/tex]
Answer:
(3×2+5x-8)-(2×2-4x-3) = (6+5x-8)-(4-4x-3)
= 6+5x-8-4+4x+3
= -3+9x
1. Write a survey question for which you would expect to collect numerical
data.
2. Write a survey question for which you would expect to collect categorical
data.
Answer:
How many siblings do you have?
I hope this helps you out :)
a babay weighs 8 & 1/4 pounds at birth two weeks later she weighs 8 & 7/8 how much weight did the baby gain
Answer:
⅝ pounds
Step-by-step explanation:
Weight at birth = 8¼ pounds
Weight after two weeks = 8⅞ pounds
[tex]Weight \: gain \\ = Weight \: after \: two \: weeks - Weight \: at \: birth \\ = 8 \frac{7}{8} \: pounds - 8 \frac{1}{4} \: pounds \\ = (8 \frac{7}{8} \: - 8 \frac{1}{4}) \: pounds \\ = (8 \frac{7}{8} \: - 8 \frac{2}{8}) \: pounds \\ = ( \frac{7}{8} \: - \frac{2}{8}) \: pounds \\ = \frac{5}{8} \: pounds[/tex]
what is the smallest number to be subtracted from 9610,so that the remainder will be a perfect square
Answer:
Hello,
Answer 6
Step-by-step explanation:
[tex]\sqrt{9610} =98,03060...\\\\ENT(\sqrt{9610})=98\\\\9610-98^2=9610-9604=6\\\\[/tex]
The smallest number to be susbtracted is 6
|x| = - |x| What can I write
Question
Five people, each working 8 hours a day, can assemble 400 toys in a 5-day work week. What is the average
number of toys assembled per hour, per person?
please help me with this
Evaluate -8 × |2|.
Answer:
-16
Step-by-step explanation:
The absolute value of 2 is 2 so -8*2=-16
If 6 pounds of fruit is 96 cents how much is one pound
Answer:
16 cents per pound
Step-by-step explanation:
Take the cost and divide by the number of pounds
96 cents / 6 lbs
16 cents per pound
look at the image to see
Answer:
surface area = perimeter of base x slant height all of it divided by 2 and then add area of base
pb = 4(6)=24 x 9.5 = 228 /2 = 114 + 36 = 150
hope that answers your question :)
2. A dolphin leaps 5 feet in the air at the same time an orca whale dives 12 feet below the water. How far apart are the whale and the dolphin?
5√6 multiple 5√6 is equal
(a) 5√36
(b) 5√6×0
(c) 5√6
(d) 5√12
step by step
for brainlist.
solve :-
[tex]\\ \sf\longmapsto 5\sqrt{6}\times 5\sqrt{6}[/tex]
a×a=a^2[tex]\\ \sf\longmapsto (5\sqrt{6})^2[/tex]
[tex]\\ \sf\longmapsto 25\times 6[/tex]
[tex]\\ \sf\longmapsto 150[/tex]
But,
[tex]\\ \sf\longmapsto \sqrt{36}=6[/tex]
So
[tex]\\ \sf\longmapsto 5\sqrt{6}\times 5\sqrt{6}[/tex]
[tex]\\ \sf\longmapsto 5\sqrt{6\times 6}[/tex]
[tex]\\ \sf\longmapsto 5\sqrt{36}\checkmark[/tex]
If you need value then It is 150 but for your question its option aSolve for
x. Round to the nearest tenth of a degree, if necessary.
Answer:
[tex]\displaystyle x \approx 30.8[/tex]
Step-by-step explanation:
Note that the figure is a right triangle, and that we are given the length of the side adjacent to x and the hypotenuse of the triangle.
Therefore, we can use the cosine ratio. Recall that:
[tex]\displaystyle \cos \theta = \frac{\text{adjacent}}{\text{hypotenuse}}[/tex]
The adjacent side is 8.5 and the hypotenuse is 9.9. Therefore:
[tex]\displaystyle \cos x = \frac{8.5}{9.9}[/tex]
We can take the inverse cosine of both sides:
[tex]\displaystyle x = \cos^{-1} \frac{8.5}{9.9}[/tex]
Use a calculator. Hence:
[tex]\displaystyle x \approx 30.8[/tex]
helppfind the value of x and y
I know tje answer
x+6kkkkkkkk
Answer:
X=75°;AND Y=30°
Step-by-step explanation:
Angle( x+75°)+(y)=180°
Angle(2x)+(y)=180°
[by subtracting both the equation we get;]
-1x=-75
x=75°
Now,value of y;
2x+y=180
2×75+y=180
150+y=180
y=180-150
y=30°
find the sum of all multiples of 9 between 0 and 200
Answer:
I thick the answer is 2277
Please help me solve it .
9514 1404 393
Answer:
ii)
36 -16 = 206 -5 = 130 -11 = 19iii)
15 -6 = 95 +2 = 720 -4 = 16Step-by-step explanation:
Straightforward addition and subtraction. You could do this in 2nd grade. Work from lower right to upper left.
ii) 30 -11 = 19; 6 -5 = 1 . . . . bottom two rows
20 -1 = 19; 16 -5 = 11 . . . . right two columns
36 -16 = 20 . . . . top row
Check
36 -6 = 30 . . . . left column
Then the solution by row is ...
36 -16 = 206 -5 = 130 -11 = 19__
iii) Same deal, working from lower right.
20 -4 = 16 . . . . bottom row
9 +7 = 16 . . . . right column
6 -2 = 4 . . . . middle column
5 +2 = 7 . . . . middle row
15 -6 = 9 . . . . top row
15 +5 = 20 . . . . left column
The solution by row is ...
15 -6 = 95 +2 = 720 -4 = 16What is the circumference of a circle with a diameter of 9 cm?
Answer:
the answer=28.27cm
using formula
c=2πr
d=2r
solving for c
C=πd
=π.9
=28.27
hope it help you
Amanda has 1 3/4yds of red ribbon and 7/8yds of green
ribbon. What is the total amount of ribbon that
Amanda has? (write answer as a fraction)
Answer:
21/8 yds or 2 5/8 yds
Step-by-step explanation:
First turn 1 3/4 yards into an improper fraction so you can add it to 7/8 yards.
1 3/4 as an improper fraction is 7/4 yds
7/4 yds = 14/8 yds
14/8 yds + 7/8 yds = 21/8 yds
So the total amount of ribbon Amanda has is 21/8 yds or 2 5/8 yds
11) Five must be the solution to 2x + 3 = 13 because 2(5) + 3 = 13.
Answer:
Yes, your right!
Your boss asked you to prepare a company party for 20 employees with a budget of Rs. 50, 000.00. You have a choice of ordering a dinner at Rs. 3, 000.00 (Package 01) from “X-Hut Restaurant” per person or a dinner at Rs. 2,500.00 (Package 02) per person from the same place (Delivery charges also included in the price of the meal). i. How many numbers (From package 01 & 02) can you order for the party by using up the budget? ii. How many numbers (From package 01 & 02) can you order for the party if the budget increases to Rs. 55, 000.00?
Step-by-step explanation:
........... ................
Determine if f(x, y) = 10 − x^2 − y^2
is increasing or decreasing at (7, −3) if we
take y to be constant and let x vary. Also determine if f(x, y) is increasing at
(7, −3) if we take x to be constant and let y vary.
Answer:
Step-by-step explanation:
f(x,y)=10-x^2-y^2
To find derivative of z w.r.t. x is treat any other variable as a constant.
dz/dx=0-2x-0
dz/dx=-2x
Evaluating this at (7,-3) gives us dz/dx=-2(7)=-14.
Since this result is negative, it mrans as x increases z decreases.
f(x,y)=10-x^2-y^2
To find derivative of z w.r.t. y is treat any other variable as a constant.
dz/dx=0-0-2y
dz/dx=-2y
Evaluating this at (7,-3) gives us dz/dy=-2(-3)=6.
Since this result is positive it mrans as y increases z decreases.
Kylie has a loyalty card good for a 13% discount at her local hardware store. What number should she multiply the prices on the tags by to find the price she would have to pay, before tax, in one step?
Answer:
.87
Step-by-step explanation:
She gets 13 off so 100-13 =87
She will pay 87%
Multiply by .87
Kylie must multiply the price by 0.87 to get the discounted price.
Given that,
Kylie has a loyalty card good for a 13% discount at her local hardware store. What number should she multiply the prices on the tags by to find the price she would have to pay, is to be determined.
The percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.
Here,
let the price be x,
Now,
According to the question,
discounted price = x - 13% of x
Discounted price = x - 0.13x
Discounted price = 0.87 x
The coefficient of the x represents the multiplication factor for Kylie.
Thus, Kylie must multiply the price by 0.87 to get the discounted price.
Learn more about percentages here:
brainly.com/question/13450942
#SPJ2
I) Find the volume in terms of pie
ii) curved surface area in terms of pie
iii) capacity in litres (correct to nearest litre)
Answer:
i) pi×4500 cm³
ii) pi×600 cm²
iii) 14 liters
Step-by-step explanation:
in general : the diameter is 30 cm, the radius is half of that (15 cm)
i)
the volume of a cylinder is base area times height.
Vc = pi×r²×h = pi×15²×20 = pi×225×20 = pi×4500 cm³
ii)
similar to volume, the side "mantle" area of the cylinder is the circumference of the base area times height.
surface area of the cylinder mantle is
Scm = 2×pi×r×h = 2×pi×15×20 = pi×30×20 = pi×600 cm²
iii)
for this we need now to do the multiplication with pi and then convert the cm³ to liters.
1 liter = a cube of 10 cm side length = 10×10×10 = 1000 cm³
pi×4500 = 14137.17 cm³ = 14.13717 liters or rounded 14 liters
The ordered pairs for two points are listed in the table. What is the equation, in slope-intercept form, of the line that contains these points?
x l y
-1 l 3
1 l -7
A. y = -5x + 2
B. y = -5x - 2
C. y = 2x + 5
D. y = 2x - 5
Answer:
y = 5x - 2
Step-by-step explanation:
(-1,3) (1,-7)
Slope (m) = (-7-3)/(1+1) = -10/2 = -5
(-1,3)
y-y = m(x-x) = y-3 = -5(x - -1) = y-3= -5(x+1) =
y-3 = 5x-5
y = 5x - 5 + 3
y = 5x - 2
Please answer this question
Which numbers are 9 units from −5 on this number line?
Drag and drop all of the numbers that are 9 units from −5 to their correct position on the number line.
-14,-5 -4 4 5 9
Answer:
-14 and 4
Step-by-step explanation:
To find the values subtract 9 from -5, as well as add 9 to -5
-5-9= -14
-5+9= 4
use the spinner to find the probability
Answer:
P(multiple of 5) = 0.1667
Step-by-step explanation:
The multiples of 5 on the spinner are 5 and 10. This means out of 12 numbers, only 2 multiples of 5. Therefore, there is a 2/12 chance to get a multiple of 5.
[tex]\frac{2}{12}=\frac{1}{6}=0.1667[/tex]
Therefore, P(multiple of 5) = 0.1667.
