Answer:
D
Step-by-step explanation:
2 * sqrt(8) + 2 * sqrt(18) = 14
Please help.
Is algebra.
Answer:
Q7: 6a³
Q8: -6n^4
Q9: -7a
Step-by-step explanation:
see attachment below
Suppose you have a bag with 50 letters tiles in it and 9 of the tiles are the letter m. If you pick a letter tule at random from the bag, probability that is the letter m is 9/50
Answer: True- [tex]\dfrac{9}{50}[/tex]
Step-by-step explanation:
Given
There are 50 letter tiles
9 of them is m letter
Favorable outcomes to draw an m letter tile is 9
The total ways to draw a single tile is 50
Probability is the ratio of favorable to the total outcomes
[tex]P=\dfrac{9}{50}[/tex]
So, the given statement is true
What is the area of a square if its side length is 1 173 cm?
Answer:
The number 173 or 1,173?
1,173 x 1,173 = 1,375,929
Since all sides are equal in a square, one given length would be all the side lengths since all sides are equal in a square.
If the side length was 173 then:
173 x 173 = 29,929
help pleaaseee rons of points and brainliest just need help.
Since both equations equal y they need to equal each other.
2x - 5 = -3x + 10
Add 3x to both sides:
5x -5 = 10
Add 5 to both sides
5x = 15
Divide both sides by 5
X = 3
Now solve for y by replacing x with 3:
Y = 2(3)-5 = 6-5 = 1
Y = -3(3)+ 10 = -9+ 10 = 1
Check: replace y with 1 and solve for x:
1 = 2x -5
Add 5 to both sides
6 = 2x
Divide both sides by 2
X = 3 ( True)
Find the surface area of a pringles can that has a radius of 1.6 inches and a height of 9.8 inches. (Find the WHOLE surface area, including the top cover.
Answer:
10.55
Step-by-step explanation:
George and Michelle each claimed to have the better recipe for chocolate chip cookies. They decided to conduct a study to determine whose cookies were really better. They baked a batch of cookies using their own recipe. George asked a random sample of his friends to taste his cookies and to complete a questionnaire on their quality. Michelle asked a random sample of her friends to complete the same questionnaire. For her cookies. They than compared the results. Which of the following statements about this study is false?
A. Because George and Michelle have a different population for friends, their sampling procedure makes it difficult to compare the recipes
B. Because George and Michelle each used only their own respective recipes, their cooking ability is confounded with the recipe quality
C. Because George and Michelle each used only the ovens in their houses, the recipe quality is confounded with the characteristics of the oven
D. Because George and Michelle used the same questionnaire, their results will generalize to the combined population of their friends
E. Because George and Michelle each baked one batch, there is no replication of the cookie recipes
find the gradient of a line that is perpendicular to 8y+4x=5
Answer:
gradient = 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope (gradient) and c the y- intercept )
Given
8y + 4x = 5 ( subtract 4x from both sides )
8y = - 4x + 5 ( divide the terms by 8 )
y = - [tex]\frac{1}{2}[/tex] x + [tex]\frac{5}{8}[/tex] ← in slope- intercept form
with gradient = - [tex]\frac{1}{2}[/tex]
Given a line with gradient m then the gradient of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-\frac{1}{2} }[/tex] = 2
2 is the gradient of a line that is perpendicular to 8y+4x=5
What is slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane
The slope of line can also be called ad gradient of a line.
The standard form of line or slope intercept form of a line is given by
y=mx+c
where m is the slope of line and c is the y intercept.
The given equation of line is 8y+4x=5
We need to convert the equation of line to Slope intercept form
8y=5-4x
Divide both sides by 8
y=5/8-4/8x
y=-1/2x+5/8
So m is -1/2.
Two lines are said to be perpendicular if m₁m₂ =-1
if m₁=-1/2
then we need to calculate m₂
-1/2m₂=-1
m₂=2
Hence gradient of a line that is perpendicular to 8y+4x=5 is 2.
To learn more on slope of line click:
https://brainly.com/question/14511992
#SPJ2
A doll manufacturer is trying to develop a special package for their Holiady Dolls in thee shape of a pyramid with a triangle base. A net of the package is shown below where F is the base of the pyramid. If the height of the package is 10 inches how many cubic inches of space are avalible for the company to fill?
Answer:
80 in³
Step-by-step explanation:
The volume of a pyramid is :
1/3 * base * height
Height = 10
The base is : the area of the triangle :
Area of triangle = 1/2 * base * height
Base = 6 inches ; height of triangle = 8 inches
Area of triangle = 1/2 * 6 * 8 = 24 inches
Base of pyramid = Area of triangle
Therefore ;
Volume of pyramid = 1/3 * 24 * 10
Volume of pyramid = 8 * 10
Cubic inches of space to fill = 80 in³
(1) I'm going to be posting 12 of these so if you're good then just stay tuned
Answer:
99
Step-by-step explanation:
The following figure is a trapezoid with the following dimensions
Height = 9ft
Shorter Base Length = 6ft
Longer Base Length = 16ft
The area of a trapezoid can be found using this formula
[tex]A=\frac{a+b}{2}h[/tex]
where a and b = bases and h = height
Given all the information needed we plug in the values into the formula
[tex]A=\frac{6+16}{2} 9\\6+16=22\\\frac{22}{2} =11\\11*9=99\\A=99ft^2[/tex]
So we can conclude that the area of the trapezoid is 99 ft²
Answer:
Formula of a trapezoid:
Base 1 + Base 2 x H x 1/2
In this case:
Base 1 (6) + Base 2 (16) x Height (9) x 1/2
= 99
help also dont mind karl
Answer:
15/8
Step-by-step explanation:
the mixed answer is 1 7/8
but also the answer is 15/8
Write the percent of free space on the computer as a decimal . Volume capacity free space%free space(c:)150GB 60GB 40%
Answer:
Here we know that:
Volume capacity = 150 GB
Free space = 60GB
Here we know that 150 GB represents the 100%, then which percentage represents the 60 GB of free space?
Well, we can write:
60 GB = X
150 GB = 100%
Now we can take the quotient between these two equations:
(60GB/150GB) = X/(100%)
Now we can solve this for X
(60GB/150GB)*(100%) = X = 0.4*100% = 40%
Answer:
there are right :)
Step-by-step explanation:
Which three side lengths will NOT form a triangle?
a- 4cm, 2cm, 8cm
b- 5in, 8in, 4in
c- 2ft, 3ft, 6ft
d- 5m, 2m, 4m
Answer:
i believe it's A bc 8 cm is too long to reach 4 cm
If you are given the hypotenuse and an adjacent side...which trig function should you use?
Answer:
sine
Step-by-step explanation:
Answer:
use the cosine (cos)
Step-by-step explanation:
There are three trig functions:
sin
cos
tan
An easy way to remember which sides go with which function is the saying:
soh - cah - toa
so....breaking down the acronoym
sin refers to opposite over hypotenuse
cos refers to adjacent over hypotenuse
tan refers to opposite over adjacent
Hope this helps!!!! :)
Find the radius of the sphere with the given volume. (15 points)
volume= 32/3 times pie yd cubed
show your work please
Answer:
r=1.37
Step-by-step explanation:
so first we have to change 32/2 to a decimal
to do that you have to divide 32÷3=10.66...7
the formula to find the radius when given the volume is r=([tex]\frac {v}{4*pi}[/tex])^1/3
r=([tex]\frac {10.6666666667}{4*pi}[/tex])^1/3
r= 1.37
then to check your work-
v=4/3π1.37^3
v=10.77
technically 10.77 and 10.6666666667 aren't equal but that's as close as it'll get
good luck :)
i hope this helps
have a nice day !!
How do I solve this??
Answer:
swsry
Step-by-step explanation:
ssry
what is it m + 5 = 8.9 solve for the
Answer:
3.9
Step-by-step explanation:
m+5=8.9
m=8.9-5
m=3.9
Deborah surveyed customers in a restaurant to find out their favorite meal. The results of the survey are shown in the able ? One person in the restaurant will be picked at random. Based on the given in information, which statement is true ?
Answer:
I got you homie! B-)
This person’s favorite meal is twice as likely to be hamburger and French fries as it is to be spaghetti.
Step-by-step explanation:
The other person answered with something unhelpful at all
given 4p = 18-5q. Calculate
i) value when q is 2
ii) value when p is 2
Answer:
i). 2 ii). 2
Step-by-step explanation:
i). 4p = 18 - 5(2)
4p = 18 - 10
4p = 8
p = 2
ii). 4(2) = 18 - 5q
8 = 18 - 5q
-10 = - 5q
q = 2
please help. will give brainliest (100 points)
Assuming the point A has coordinates (2,3) and the center of dilation is the origin.
Then the image of point A under a dilation of scale factor of 4 is (4∗2,4∗3)=(8,12)(4*2,4*3)=(8,12)(4∗2,4∗3)=(8,12)
Hence A(2,3)→A′(8,12)A(2,3)\to A'(8,12)A(2,3)→A
′
(8,12)
In general the rule for a dilation of scale factor of k is (x,y)→(kx,ky)(x,y)\to(kx,ky)(x,y)→(kx,ky)
please mark me as brainliest
The diameter of a basketball rim is 18 inches. A standard basketball has a circumference of 30 inches. What is the distance between the ball and the rim in a shot in which the ball goes exactly in the center of the rim? Show your work.
Answer:
4.2 inches
Step-by-step explanation:
Basketball rim:
diameter = 18 inches
r = 18/2 = 9 inches
Ball:
Circumference of ball = 30 inches
2πr = 30 inches
[tex]2*3.14*r = 30\\\\r = \frac{30}{2*3.14}\\\\r = 4.8 inches[/tex]
Distance between the ball and the rim in a shot when the ball goes exactly in the center of the rim = radius of the rim - radius of the ball
= 9 - 4.8
= 4.2 inches
please help I will give brainliest
-5x+4y=7 y=-2x-8
x = 13, y = 18
hope this is right
Answer:
x=−3 and y=−2
Step-by-step explanation:
-5x+4(-2x-8)=7
-13x-32=7
-13x-32+32=7+32
-13x=39
divide both sides by -13
x=-3
substitute x for -3
-2(-3)-8= -2
y= -2
Challenge A new coffee shop sold cups of hot coffee and cups of iced coffee during its first two days. The ratio of cups of hot coffee sold to cups of iced coffee sold on the first day was . On the second day, the shop sold as many cups of iced coffee as the first day. The ratio of cups of hot coffee sold to cups of iced coffee sold on the second day was . How many cups of each type of coffee did the shop sell each day?
Answer:
1 day = 221 hot coffee cups and 117 iced coffee cups
2 day = 247 hot coffee cups and 234 iced coffee cups
Step-by-step explanation:
A new coffee shop sold 468 cups of hot coffee and 351 cups of iced
coffee during its first two days. The ratio of cups of hot coffee sold to cups of
iced coffee sold on the first day was 17 : 9. On the second day, the shop sold
twice as many cups of iced coffee as the first day. The ratio of cups of hot
coffee sold to cups of iced coffee sold on the second day was 19 : 18.
a) How many cups of each type of coffee did the shop sell the first day?
Let cups of hot coffee be denoted by x
Then
17x+ 19x= 468
or
36x= 468
x= 13
On the first day the number of hot coffee cups sold are 17y or 17*13= 221 cups.
On the second day the number of hot coffee cups sold are 19y or 13*19= 247 cups.
Similarly Let cups of iced coffee be denoted by y
Then
9y+18y= 351
27y= 351
y= 351/27= 13
On the first day the number of iced coffee cups sold are 9y or 13*9= 117 cups.
On the second day the number of iced coffee cups sold are 18y or 13*18= 234 cups.
for which value of k will the equation x^2-5x-k=0 have equal roots
Answer:
therefore the value of k for which the given quadratic equation will have quale and real root
Step-by-step explanation:
k=52 and k=52
Use
I
=
P
R
T
I=PRT to find the total amount in the savings account. Type in "money form".
$350.00 at 6.2% for 2 years
Answer:
43.4
Step-by-step explanation:
algebraic inverse proportion
y is inversely proportional to x.
When y=30, x=3
Work out y when x=6
Answer: tell me if i am wrong
yx = k, where k is a real constant.
When y = 30, x = 3.
=> k = (30)(3) = 90.
Hence when y = 6, x = k/y = (90)/(6) = 15.
Step-by-step explanation:
If £2000 is placed into a ban account that pays 3% compound interest per year how much will be in the account after 2 years
Answer:£2121.8
Step-by-step explanation:
Given
Principal money [tex]P=[/tex]£2000
rate of interest is [tex]R=3\%[/tex]
time period [tex]T=2\ yr[/tex]
The amount by compound interest is given by
[tex]A=P[1+\frac{R}{100}]^T[/tex]
Putting values
[tex]\Rightarrow A=2000[1+0.03]^2\\\Rightarrow A=2121.8[/tex]
So, after two years it will be £2121.8
BER33333 Solving a word problem with two unknowns using a linear...
Devaughn is 8 years older than Sydney. The sum of their ages is 104. What is Sydney's age?
years old
Х
$
?
Answer:
56
Step-by-step explanation:
x+x+8=104
2x=96
x=48
48+8=56
Write an equation for esch line in Slope Intercept Form
Answer:
Step-by-step explanation:
Y intercept is at (0,1) so b=1
slope is go 4 down 1 right so slope is -4
Equation is
-4x+1=y
3y - 21 = 12x How to solve for y
Answer:
y=4x+7
Step-by-step explanation:
Let's solve for y.
3y−21=12x
Step 1: Add 21 to both sides.
3y−21+21=12x+21
3y=12x+21
Step 2: Divide both sides by 3.
3y /3 = 12x+21 /3 y=4x+7
brainliest please?
Please help me with question number 2
Answer:
2. The area of the side walk is approximately 217 m²
3. The distance away from the sprinkler the water can spread is approximately 11 feet
4. The area of the rug is 49.6
Step-by-step explanation:
2. The dimensions of the flower bed and the sidewalks are;
The diameter of the flower bed = 20 meters
The width of the circular side walk, x = 3 meters
Therefore, the diameter of the outer edge of the side walk, D, is given as follows
D = d + 2·x (The width of the side walk is applied to both side of the circular diameter)
∴ D = 20 + 2×3 = 26
The area of the side walk = The area of the sidewalk and the side walk = The area of the flower bed
∴ The area of the side walk, A = π·D²/4 - π·d²/4
∴ A = 3.14 × 26²/4 - 3.14 × 20²/4 = 216.66
By rounding to the nearest whole number, the area of the side walk, A ≈ 217 m²
3. Given that the area formed by the circular pattern, A = 379.94 ft.², we have;
Area of a circle = π·r²
∴ Where 'r' represents how far it can spread, we have;
π·r² = 379.94
r = √(379.94 ft.²/π) ≈ 10.997211 ft.
Therefore, the distance away from the sprinkler the water can spread, r ≈ 11 feet
4. The circumference of the rug = 24.8 meters
The circumference of a circle, C = 2·π·r
Where;
r = The radius of the circle
π = 3.1
∴ For the rug of radius 'r', C = 2·π·r = 24.8
r = 24.8/(2·π) = 12.4/π = 12.4/3.1 = 4
The area = π·r²
∴ The area of the rug = 3.1 × 4² = 49.6.