Answers
Answer:
Step-by-step explanation:
Related Questions
213=22: Z=14 Select True or False for each equation as is state
O True
O False
5x=25
Answers
Choose Yes or No to tell if the number 3.23 will make each equation true.
4.65 + □ = 7.88
Choose...
□ + 6.42 = 9.45
Choose...
2.85 + □ = 6.08
Choose...
□ + 8.49 = 10.72
Choose...
Answers
Answer:
yes
no
yes
no
Step-by-step explanation:
i think its right
Answer:
4.65 + □ = 7.88
Choose... Yes!
□ + 6.42 = 9.45
Choose...No
2.85 + □ = 6.08
Choose...Yes!
□ + 8.49 = 10.72
Choose...No
Step-by-step explanation:
Sorry if I'm wrong.
A rectangle and a square have the same area. a. The width of the rectangle is w inches. The length of the rectangle is 15 inches less than 4 times the width of the rectangle. Write a polynomial to represent the area of the rectangle. b. The side of the square is w inches. Write a polynomial to represent the area of the square. c. Write an equation such that the area of the rectangle is equal to the area of the square. d. Solve the equation in part (c) to find the side length of the square. e. What are the length and the width of the rectangle?
Answers
9514 1404 393
Answer:
a) w(4w-15)
b) w²
c) w(4w -15) = w²
d) w = 5
e) 5 by 5
Step-by-step explanation:
a) If w is the width, and the length is 15 less than 4 times the width, then the length is 4w-15. The area is the product of length and width.
A = w(4w -15)
__
b) If w is the side length, the area of the square is (also) the product of length and width:
A = w²
__
c) Equating the expressions for area, we have ...
w(4w -15) = w²
__
d) we can subtract the right side to get ...
4w² -15w -w² = 0
3w(w -5) = 0
This has solutions w=0 and w=5. Only the positive solution is sensible in this problem.
The side length of the square is 5 units.
__
e) The rectangle is 5 units wide, and 4(5)-15 = 5 units long.
The rectangle and square have the same width and the same area, so the rectangle must be a square.
In spite of the potential safety hazards, some people would like to have an Internet connection in their car. A preliminary survey of adult Americans has estimated this proportion to be somewhere around 0.40. Use the given preliminary estimate to determine the sample size required to estimate this proportion with 95% confidence and a margin of error of 0.02. (Round your answer up to the nearest integer.)
Answers
Answer:
The sample size required is of 2305.
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 zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
A preliminary survey of adult Americans has estimated this proportion to be somewhere around 0.40.
This means that [tex]\pi = 0.4[/tex]
95% confidence level
So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].
The sample size required to estimate this proportion with 95% confidence and a margin of error of 0.02.
The sample size required is of n.
n is found when M = 0.02. So
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.02 = 1.96\sqrt{0.4*0.6}{n}}[/tex]
[tex]0.02\sqrt{n} = 1.96\sqrt{0.4*0.6}[/tex]
[tex]\sqrt{n} = \frac{1.96\sqrt{0.4*0.6}}{0.02}[/tex]
[tex](\sqrt{n})^2 = (\frac{1.96\sqrt{0.4*0.6}}{0.02})^2[/tex]
[tex]n = 2304.96[/tex]
Rounding up
The sample size required is of 2305.
What is the volume of this figure? A:320 inches cube, B:400 inches cube, C: 480 inches cube or, D:560 inches cube?
Answers
Answer:
480 in³
Step-by-step explanation:
15x4x4=240
10x4x4=160
5x4x4=80
240+160+80=480
Find the missing fraction. 1/2 + blank = 7/8
Answers
Answer:
j
Step-by-step explanation:
Solve the system 8y-5z=23 3y-2z=6
100 POINTS
Answers
Answer:
z = 21 ; y= 16
Step-by-step explanation:
first of all we have to isolate a variable.
In second expression we can obtain:
3y = 2z+6
y = 2/3 z + 2
now we have to substitute this value in the first equation and solve it
8(2/3z+2)-5z = 23
16/3z + 16 -5z = 23
16z +48 - 15z = 69
z = 21
now we have to substitute z in the second equation:
y = 2/3 (21) +2
y = 14+ 2 = 16
y = 16
What is the volume of the cone below?
O A. 5082 units 3
O B. 3388 units
O C. 924 units 3
D. 10,164units 3
Answers
Answer: 3388
Step-by-step explanation:
If we used the quadratic expression below to complete a diamond, which pair of values would go on the SIDES of the diamond?
x^2 - 4x + 5
a. 5 and -1
b. -5 and 1
c. -4 and 1
d. 4 and -1
e. no solution
Answers
9514 1404 393
Answer:
e. no solution
Step-by-step explanation:
You would be looking for factors of +5 that have a sum of -4. There are none (no solution). None of the values offered in the answer choices have a product of +5.
__
The discriminant of the quadratic is (-4)² -4(1)(5) = -4, so the roots are complex.
Danielle has two interest rates to choose from to invest her inheritance of $5,000.
BANK A: 2.75% compounded monthly; BANK B: 3.25 compounded semi-annually
Complete Danielle's work to find the better return after 10 years.
Answers
Answer:
Bank B had the better return after 10 years.
Step-by-step explanation:
The length of a rectangle is twice the width. The perimeter of the rectangle is 24 feet.
What is the length of the rectangle?
Let x = the width of the rectangle.
Which let statement would you use for the length?
Answers
Let the width be x cm
Length = 2x cm
Perimeter = 2 ( x + 2x) = 42
3x = 21
x = 7 cm
ANSWER Length 14cm , Width = 7cm
Which polynomial is prime? x2 – 36 x2 + 16 x2 – 7x + 12 x2 – x – 20
Answers
Answer:
B
Step-by-step explanation
ed 2020
Stephanie earns $750 a month. she gives
30% of the money to charity. How much money
does Stephanie give charity?
Answers
Answer:
she gives 225
Step-by-step explanation:
750×30% equals to 225
Answer:
Stephanie gives $225 to charity a month
Step-by-step explanation:
$750 / 100 = 7.5
7.5 x 30 = 225
7.5 x 70 = 525
700 - 525 = 225
How do I simplify 55/35
Answers
Answer:
1 4/7
Find a number that will divide evenly into both the top number and the bottom number. (You can do any math operation to either number as long as you do the same to the bottom number.)
Keep doing that until you can't find a number that works.
In this case try 5.
55 ÷ 5 = 11 and 35 ÷ 5 = 7
so: 55/35 = 11/7
since the top number is greater than the bottom, reduce 11/7 to 1 4/7
Answer:
[tex] \frac{55}{35} \\ \frac{11}{7} \\ 1.57[/tex]
which statement is true?
Answers
Answer:
a because i just know it
use the given area to find the scale factor from the small figure to the large
Answers
Your new car went 258 miles on 7.3 gallons of gasoline. How many miles per gallon is this?
Answers
What is the distance between the points (-6, 2) and (-4, 7)? Round to the nearest tenth if necessary.
Answers
Answer: distance is 5.4
Step-by-step explanation: distance between points (X1,y1) and (x2,y2) is
√(x2-X1)² + (y2-y1)² = √[(-4-(-6))² + (7-2)²] = √(2²+ 5²) =√29
The distance between the points (-6, 2) and (-4, 7) is 5.4 units.
What is the distance formula?The distance between any two points (x₁, y₁) and (x₂, y₂) can be determined using the distance formula according to which,
Distance = √((x₂ - x₁)² + (y₂ - y₁)²).
How do we solve the given question?We are asked to find the distance between the points (-6, 2) and (-4, 7).
We will determine the distance using the distance formula, by which
Distance = √((x₂ - x₁)² + (y₂ - y₁)²)
or, Distance = √(((-4) - (-6))² + (7 - 2)²)
or, Distance = √((-4 + 6)² + (7 - 2)²) = √(2² + 5²) = √(4 + 25) = √29
∴ Distance = √29 = 5.385165 = 5.4 (rounding to the nearest tenth).
∴ The distance between the points (-6, 2) and (-4, 7) is 5.4 units.
Learn more about the Distance Formula at
https://brainly.com/question/7243416
#SPJ2
Which equation has the same solution as
1/2 (4x-1/3) +2/3x=3 (x-1/6)
Answers
Answer:
You would have to add the options.
Step-by-step explanation:
Find the exact value of x p
Answers
Answer:
x = 9.6
Step-by-step explanation:
sin Q = 16/20 Q = 53.13° from the big triangle
16/20 = x/12
192 = 20x
x = 9.6
According to this diagram, what is tan 62°?
62°
17
8
280
90°
15
O A.
8
17
17
B.
8
O C.
15
17
O D.
17
15
O E.
8
15
Answers
Where is the diagram???
1.6 x 0.7 =
plsss help
Answers
Answer:
1.12
Step-by-step explanation:
Answer:
1.12
Step-by-step explanation:
no links please or you will be reported .
Answers
Answer:
Step-by-step explanation:
2 should be 50 degrees as well. 1 should be 130 (to get the needed 180) 3 should be 130 degrees. Hopefully this is correct
Help mee it’s due tonight!!
Answers
Answer:
It's [tex]\frac{1}{288}[/tex]
Step-by-step explanation:
Replace x and y in the equation, it will look like this:
[tex]2(\frac{-1}{3})^2(\frac{1}{4})^3\\[/tex]
[tex]2(\frac{1}{9})(\frac{1}{64})[/tex]
[tex]2(\frac{1}{576})[/tex]
[tex]\frac{2}{576}=\frac{1}{288}[/tex]
The perimeter of the rectangle below is 108 units. Find the length of side VW.
Answers
Answer:
can u add a pic or any other measuremeants?
Step-by-step explanation:
Pleaseee helppp which one is and whyy!!!!
Answers
Answer:
c = 17(83)-17(16)=1139
Step-by-step explanation:
I need help!!!!! It’s urgent
Answers
Answer:
do a line conforming to the table days=x sales =y
Step-by-step explanation:
Which statement is false?
O A A square is a rectangle.
OB. A square is a parallelogram.
OC. A square has exactly 4 acute angles.
0
D. A square has exactly 4 congruent sides.
Answers
a group of students measure the distance a toy car has traveled after different amounts of time. A table of the data is shown. The students want to perform and analysis of the date set and consider removing the outlier point. Select all of the quantities that will change if the outlier point is removed from the data set.
Data set:
Time (seconds) distance (meters)
5. 1.0
6. 1.2
7. 2.4
8. 3.3
9. 3.7
10. 11.0
11. 4.2
12. 3.7
13. 4.8
14. 4.5
15. 4.9
Answers
Answer:
In this given set of data the outliers point is the distance at 10 seconds i.e 11 meters.
If the outlier point is removed the best fit line, regression value of two variables i.e time and equation of the curve along with slope will change.
Step-by-step explanation:
In this given set of data the outliers point is the distance at 10 seconds i.e 11 meters.
If the outlier point is removed the best fit line, regression value of two variables i.e time and equation of the curve along with slope will change.
Please find the attach graph
Answer:
The mean and range of distance change
Step-by-step explanation:
What does the unknown number round to when rounded to the nearest whole?
Answers
Answer:
0
Step-by-step explanation:
