What??????????????????
Question 8
8. Ray is making face masks and needs to
purchase elastic cord. He needs 10.25 cm
elastic cord for each face mask. He orders 20
m of elastic cord. If he doesn't want any of
the cord to be wasted, what is the least
amount of extra cord that he would need to
add to his order of 20 m?
A.
B.
9 cm
10.25 cm
C.
D.
20.09 m
20.9 m
9514 1404 393
Answer:
B. 9 cm
Step-by-step explanation:
The number of face masks Ray can make with 20 m of cord is ...
(20 m)(100 cm/m)/(10.25 cm/mask) = 195.12195 masks
To make one more mask, he will need to buy an additional amount of ...
(196 -195.12195)×(10.25 cm) ≈ 9.00 cm
Ray would need to add 9 cm of cord to his order.
Please help with this Ive been stressing out lately and I want a break I'll give hearts and 5 stars.
Answer:
8.8584073464
Step-by-step explanation:
area of the rectangle is 12
area of the circle is just pie
subtract the two and you get 8.8584073464
Answer:
Step-by-step explanation:
Sabrina is building three identical table tops. The table top measures 8 feet by 3 feet. How many square feet of wood will Sabrina need to create the table tops?
Solve for
X/11=10/12
Give your answer as an improper
fraction in its simplest form.
12x = (10)(11)
12x=110
x=110÷12
x=55/6
Todd plans to attend a college that will cost $25,000 in tultior. He has $14,400 In his savings account. He plans to use half of this money in order to pay the tlution. He will also recelve a scholarship for $2,500. He will take out a student loan for the remaining tuition costs. How much student loan will Todd need to borrow?
Answer:
$15, 300 a loan
Step-by-step explanation:
14, 400/2 = 7200
25000- 7200 = 17,800
17, 800- 2500 for a scholarship = 15,300
I rly need help this is a diagnostic test and if I fail it I will be in sooo soo much trouble? Plz help
Answer:
1/3P
Step-by-step explanation:
P/3 is equal to 1/3P
The perimeter of a rectangular field is 238 yards. If the length of the field is 65 yards, what is its width?
Answer:
54 is the width
Step-by-step explanation:
65+65=130
238-130=108
108÷2=54
Answer:
The width of the rectangular is 54yards
Step-by-step explanation:
please mark me brainliest
Which of the following are point-slope equations of the line going through (-3,-5) and (2,4)
Answer:
y+5 = 9/5(x+3)
y - 4 = 9/5(x-2)
Step-by-step explanation:
First find the slope
m = ( y2-y1)/(x2-x1)
= ( 4- -5)/(2 - -3)
= ( 4+5)/(2+3)
= 9/5
Then using the point slope form
y -y1 = m(x-x1) where x1 and y1 are a point on the line
y - -5 = 9/5(x- -3)
y+5 = 9/5(x+3)
or using the other point
y - 4 = 9/5(x-2)
The population of a state is approximately 5 million people. The state is in the shape of a rectangle that is 280 miles by 380 miles. To the nearest whole number, what is the average number of people living on each square mile of the state?
Answer:
106,400 i think
Step-by-step explanation:
Answer:
47 people live on each square mile of the state
Step-by-step explanation:
5000000 people divided by (280 x 380) square miles
is 47 people per 1 square mile
How long will it take $3000 to earn $900 interest at 6% simple interest?
20 points and brainly ;)
Answer:
5 years
Step-by-step explanation:
3000x.06=180 interest per year.
900/180 =5 years to earn 900 interest.
MATHS
1. Caleulate the area of a rectangle of length
250cm and width 200cm.
2. A square room is 650cm long. Find the area in:
(i) square centimeter (ii) square metres
Answer:
1. 50000
2.
i 274625000cm
ii 274.625m
Step-by-step explanation:
1. Area of a rectangle: length*width
250*200=50000cm
2. Volume of a cube: length^3
i 650^3=274625000cm
ii 650 cm=6.5m; 6.5^3=274.625m
Camila built a rectangular vegetable garden, as shown in the figure.
12 ft.
4 ft.
Camila wanted to create a second garden to grow even more vegetables. To determine the dimensions of her second
garden, she used a horizontal scale factor of 75% and a vertical scale factor of 150%. The horizontal measurement of
the second garden is 21
feet, and the vertical measurement of the second garden is 10
feet.
lus
Find the expected value of a
random variable x having the
following probability distribution.
5
1
0
1
8
Probability
12
16
U22
112
1
2
Well formatted version of question:
Find the expected value of a random variable x having the following probability distribution.
x (-5,-1,0,1,5,8)
Probability (.12, .16, .28, .22, .12, .1)
Answer:
0.86
Step-by-step explanation:
The expected value E(X) is calculated as :
E(X) = Σ(x * p(x))
(-5)(0.12) + (-1)(0.16) + (0)(0.28) + 1(0.22) + 5(0.12) + 8(0.10)
-0.6 + -0.16 + 0 + 0.22 + 0.6 + 0.8
= 0.86
An isoceles triangle has equal side 10cm long and a base 6cm long.Calculate the height of the triangle correct to 2decimal places
Answer:
9.54 cm
Step-by-step explanation:
half base = 6:2 = 3 cm
height = [tex]\sqrt{equal side^2 - half base^2} = \sqrt{10^2 - 3^2} = \sqrt{100-9} = \sqrt{91}[/tex] = 9.54 cm
I would appreciate it if someone could help answer this problem:)
Answer:
sum of exterior angles of a polygon=360
Step-by-step explanation:
4x+2x+x+4+x+4x+2=360
12x+6=360
2x+1=60
x=59/2
29.5
If a conversion rate of 8 dollars is worth 13 euros, how many euros do you get
when you convert 500 dollars?
How do I divide x+8/2
Answer:
you dont divide it.
Step-by-step explanation:
x+8/2 can mean a few things cause its not very clear.
x+ 8/2
x+8/2 (x+8 over 2)
8/2=4 so if its x + 8/2 thats just x+4
A piece of aluminum that is 20 cm³ has a mass of 54 g.
a. What is the density of the aluminum?
Use elimination to find the solution to the system of equations. 9x + 2y = 59
2x + 5y = 4 (Answers below)
Answer:
????????????????????
Answer:
Step-by-step explanation:
9x + 2y = 59 -> 9x = 59 - 2y -> x = (59-2y)/9
2x + 5y = 4 -> 2(59-2y)/9 + 5y = 4 -> (118 - 4y)/9 +5y = 4
118 - 4y + 45y = 4*9 -> 41y = -82 -> y = -2, thus x = 7
For the following three questions, you will be testing for correlation between people's opinions of bilingual education (X) and their opinions about whether foreign born citizens should be allowed to run for president (Y) using the following data. The scale for both variables is 1 to 9, representing strong opposition to strong favor respectively. The null hypothesis is that X and Y are not correlated.
X Y
2 5
5 3
1 2
7 9
1 3
Calculate r. What are the degrees of freedom and do we retain or reject the hypothesis?
Answer:
0.7539
Degree odndd
Step-by-step explanation:
X Y
2 5
5 3
1 2
7 9
1 3
X :
2
5
1
7
1
Y:
5
3
2
9
3
Using a correlation Coefficient calculator, the correlation Coefficient, R value obtained is 0.7539
H0 : ρ = 0
H1 : ρ ≠ 0
The test statistic :
T* = r(√n - 2) / (√1 - r²)
T* = 0.7539 * √5 - 2) / (√1 - 0.7539²)
T* = 1.3057931 /0.6569891
T* = 1.988
Using the Pvalue from t statistic calculator :
T* = 1.988 ; df = 5 - 2 = 3
Pvalue = 0.0704
At α = 0.05
Pvalue > α ; we fail to reject H0 ; and thus conclude that and Y are not correlated. And conclude that X and Y are not correlated.
-6/7 x (-5/4)
Pls put it as a fraction :)
Answer:
15/14
Step-by-step explanation:
I put it into the scientific desmos calculator online
I dont know this Please Help
Answer:
point A
Step-by-step explanation:
Point A is at (9,-4) (x coordinate, y-coordinate)
it is 4 units down from (9,0)
A box contains 5 red balls, 7 green balls, and 6 yellow balls. In how many ways can 6 balls be chosen if there should be 2 balls of each color
Answer:
12 balls
Step-by-step explanation:
take 3 red balls ,5 green balls and 4 yellow balls that 12 balls = 6 balls in bag
If bag contains 4 white balls, 6 yellow balls, and 5 red balls then 6 balls can be chosen if there must be 2 balls of each color in 900 ways
What are permutation and combination?Permutation is way of selecting and arranging things while combination is way of selecting things .
here, we have,
Given that bag contains 4 white balls, 6 yellow balls, and 5 red balls
we have to select 6 balls
it's given that there must be 2 balls of each color
So here's how we can select them
2 white balls ,2 yellow balls and 2 red balls
So we have to select 2 white balls out of 4 white balls ,2 yellow balls out of 6 yellow balls and 2 red balls out of 5 red balls
so number of ways of selecting
4C2 * 2C2 * 5C2
=6*15*10
=900
If bag contains 4 white balls, 6 yellow balls, and 5 red balls then 6 balls can be chosen if there must be 2 balls of each color in 900 ways
To learn more about combination visit :
brainly.com/question/25821700
#SPJ3
The diameter of a circle is 4 meters. What is the circles circumference
Answer:
12.56m²
Step-by-step explanation:
So the formula for the circumference of a circle is π x diameter, so we just have to plug into our equation (we're using 3.14 as π):
3.14 x 4 = 12.56
So the circumference of your circle is 12.56 meters²
hope this helps:)
Write the log equation as an exponential equation. You do not need to solve for x.
log (x-6) (6) = 3x – 5
Answer:
(x-6)^3x-5 =6
Step-by-step explanation:
logb a=c ------> b^c =a
The function, f(x), is plotted below.
On a coordinate plane, a function curves up to (StartFraction pi Over 4 EndFraction, 0), curves down through (0, negative 0.5) to (StartFraction 3 pi Over 4 EndFraction, negative 4) and then curves back up.
What is reasonable estimate for the limit?
Limit of f (x) as x approaches StartFraction pi Over 4 EndFraction f(x) =
Answer:
-2
Step-by-step explanation:
Determining the limit from a graph edge
Answer:
-2
Step-by-step explanation:
The sum of a number times 6 and 26 is at most 15.
About 0.46
0.46(6+26)=>15
Emily has a coupon for 10%off of her purchase at the store. she finds a backpack that she likes on the discount rack. it’s original price is $60 but everything on the rack comes with the 30% discount. Emily says 10% and 40% make 50% so it will cost $30 is Emily correct explain what price will Emily pay for the backpack
Answer:
It is true that 20% and 30% make 50%. But in the context of sale prices it is essential to keep track of the wholes to which these percents apply. For the backpack, the 30% discount applies to the original $60 price: 30% of $60 is 0.3×60=18 making the discount on the backback $18. So after using the coupon, the backpack price becomes $42. Emily's additional 20% coupon applies not to the original backpack price but to the discounted price of $42: 20% of $42 is $8.40. Emily would need to save an additional $12 off the $42 price in order to buy the backpack for $30 so her calculations are not correct.
As seen in part (a), Emily's coupon lowers the discount rack price by $8.40 so she will pay
42−8.40=33.60
or $33.60.
Step-by-step explanation:
mark takes $4000 from john for 2 years at the rate of 10% half yearly interest. what amount will be paid by mark to john after end of 2 years?
Answer:
times all of the numbers
Step-by-step explanation:
Oak Street and Elm Street run parallel to each other. When Main Street
intersects them, it forms exterior 28, measuring 60°. What is the-
measure of
22?
Answer:
100degrees
Step-by-step explanation:
From the given diagram;
<2 = <6 (corresponding angle)
Since <6 + 80 = 180
<6 = 180 - 80
<6 = 100 degrees
Since <2 = <6, hence <2 = 100degrees