Answer:
well the volume of a sphere is V = 4/3 x pie x r3 so the radius is half of the diameter so that would be 8 not going to show work but the answer is 2144.66
HELPPPP
JDHSHEHEHDHEHEHYEYEGEG
I made a mistake while solving the inequality below. What mistake did I make? Explain what I should’ve done instead.
Answer:
Mistakes:
Used addition
Didn't flip inequality form
Corrections:
Divide each term
Instead of a positive value it should be negative
flip the direction of the inequality form
Step-by-step explanation:
[tex] - 9x \div - 9 \leqslant 90 \div – 9 [/tex]
cancel the common factor
[tex] \times \leqslant 90 \div - 9[/tex]
Divide 90 by – 9
Answer is:
[tex] \times \leqslant - 10[/tex]
Hope this helps!
A prism is unfolded. Which of the following faces can be considered a base?
Check all that apply.
A. G
В. С
C. А
D. D
Answer:
Well, if we fold it into a shape, we find out it's a pentagon prism. Thats as far as I can explain it, but I think that G, C, and A are the answers. I may be wrong though! Heart it if it was helpful! Thanks!
Step-by-step explanation:
The middle two answer choices
Why is this? Because the base faces are the nonrectangular portions of the pentagonal prism. Think of a room that has 5 sides. The floor and ceiling are both pentagons, so they are the base faces. The five walls are rectangles.
The area of the pathway is square, and its area is 196 square cm. Find the length of the pathway.
Answer:
14 cm
Step-by-step explanation:
Use the formula for the area of a square, a = s², where s is the side length of the square.
Plug in 196 as the area, then solve for s.
a = s²
196 = s²
14 = s
So, the length of the pathway is 14 cm
help the volume of the roller is 576cm. Calculate the height and area of the roller if its radius is 8cm.
Answer:
143.7cm^2
Step-by-step explanation:
Given data
Volume= 576cm^3
Radius= 8cm
The expression for the volume of cylinder is
V= πr^2h
substitute
576= 3.142*8^2*h
576= 3.142*64*h
576= 201.088h
h= 576/201.088
h=2.86cm
The formula for finding the lateral area of a right circular cylinder is:
A=2πrh
substitute
A= 2*3.142*8*2.86
A= 143.7cm^2
Hence the area is 143.7cm^2
A bag contains 28 marbles. The theoretical probability of randomly drawing a
blue marble is 3/7. Find the number of blue marbles in the bag.
Answer:
12
Step-by-step explanation:
Probability = Expected outcome/Total outcome
GIven
Total outcome = 28marbles
probability of randomly drawing a blue marble = 3/7
Substitute
3/7 = number of blue marbles/28
Cross multiply
7N = 3* 28
N = 3*4
N= 12
Hence there 12 blue marbles in the bag
Do anyone know what it is
What is the base of the expression 1113?
3
11
12
21
Answer:
7
Step-by-step explanation:
I just guessed 7 and believe me its right
The Malcolms are taking a trip. Midville is 214 miles
from their home. Walesburg is 3 times as far.
How far is Walesburg from their home?
Answer:
642 miles
Step-by-step explanation:
Distance of Midville from their home = 214 miles
Walesburg is 3 times as far.
How far is Walesburg from their home?
Distance of Walesburg from their home = 3 × Distance of Midville from their home
= 3 × 214 miles
= 642 miles
Distance of Walesburg from their home = 642 miles
What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid?
Answer:
Hence, the distance between (7,8) and (-8,0) is:
17
Step-by-step explanation: (a,b)=(7,8) and (c,d)=(-8,0)
Hope this helps!!!!!!
Step-by-step explanation:
Answer:
17
Step-by-step explanation:
17 is the crect answer, thank you
Y= -2/5x-10
What is the slope of a line perpendicular to y =
What is the slope of line JK?
Answer:
perp. just switch from -2/5 to positive 5/2
Step-by-step explanation:
Answer:
m2 =5/2
Step-by-step explanation:
m1=-1/m2
m2=-1/m1
y=-2/5x-10
m1=-2/5
m2= -1/-2/5
m2=5/2
y=5/2x-10 ⊥ y=-2/5x-10
Y is inversely proportional to x, when Y = 2, x = 4.
Find the constant of proportionality.
For full credit, write a proportion and show work.
PLEASE HELP I WILL MAKE BRANILIST OR WHATEVER PLEASE
Answer:
Constant of proportionality is y divided by x. y is 2 and x is 4. 2 divided by 4 is 1/2.
Let me know if that is correct.
Step-by-step explanation:
In triangle FGH shown below, what is the measure of angle F? (giving brainliest and thanks to all!)
Answer:
F= 180 - (127°+33.5°)
180- 160.5
= 19.5°
Step-by-step explanation:
Angles in a triangle add up to 180°
Step-by-step explanation:
127° + 33.5° + F = 180° (Angle sum property)
160.5° + F = 180°
F = 180° - 160.5° = 19.5
Therefore, F = 19.5
Which ordered pair (x,y) is the solution to the given system of linear equation?
Answer:
(x, y) = (-1, 4)
Step-by-step explanation:
3x + 3y = -3 (1)
-2x + y = 2 (2)
From (2)
y = 2 + 2x
Substitute y = 2 + 2x into (1)
3x + 3y = -3 (1)
3x + 3(2 + 2x) = -3
3x + 6 + 6x = -3
9x + 6 = -3
9x = -3 - 6
9x = -9
x = -9/9
x = -1
Substitute x = -1 into (2)
-2x + y = 2 (2)
-2(-1) + y = 2
-2 + y = 2
y = 2 + 2
y = 4
(x, y) = (-1, 4)
Answer:
(-1,0)
Step-by-step explanation:
Suppose that the dollar cost of producing x ratios is c(x)=800+40x-0.2x^2. Find the average cost per radio of producing the first 40 radios.
Answer:
24radios
Step-by-step explanation:
Given that the dollar cost of producing x ratios is c(x)=800+40x-0.2x^2. Find
Average cost is expressed as dC(x)/dx
dC(x)/dx = 40-0.4x
C'(x) = 40 - 0.4x
If x = 40
C'(40) = 40 - 0.4(40)
C'(40) = 40 - 16
C'(40) = 24
Hence the average cost per radio of producing the first 40 radios is 24radios
What is bigger
6700 Square decimetres Or 67 Square meters
Answer:
67 square meters, because you multiply the area value by 100 (i think lol)
Step-by-step explanation:
Which statement is true?
(1) B and C have the same zeros.
(2) A and B have the same y-intercept.
(3) B has a minimum and C has a maximum.
(4) C has a maximum and A has a minimum.
AGE NO.:
DATE:
simplify!
12 / 24 - 3/216 +5600 -5554
Use calculator for the solving:
12 / 24 - 3/216 +5600 -5554 = ?
Answer: 46.4861111111
Hopefully it's correct :)
-3(-7 - x) = 1/2 (x + 2)
Answer:
x=-8
Steps:
Simplify-
−3(−7−x)= x+2/2
Simplify-
−3(−7−x)= 1+ x/2
Multiply both sides by 2-
−6(−7−x)=2+x
Expand-
42+6x=2+x
Subtract 2 from both sides-
42+6x−2=x
Simplify-
6x+40=x
Subtract 6x from both sides-
40=x−6x
Simplify-
40=−5x
Divide-
-40/5=x
Simplify-
-8=x
Switch sides-
x=-8
I believe this is correct, if not let me know and I will fix it.
Simplify (1+ 3) (2-3)
Step-by-step explanation:
[tex] \sqrt{3} - 1[/tex]
Answer:
-1 + √3
Step-by-step explanation:
use the F.O.I.L method to solve this.
"firsts"
1 * 2 = 2
"outsides"
1 * -√3 = -√3
"insides"
√3 * 2 = 2√3
"lasts"
√3 * - √3 = -3
so you get:
2 - √3 + 2√3 - 3
combine like terms
-1 + √3
Someone help me please!
Answer:
y < -3x + 2
Step-by-step explanation:
The shading is below the line meaning the inequality is less than. Moreover, the line is dashed meaning there is no 'equal to'.
Therefore, the inequality is y < -3x + 2.
what's the answer? help asap
plssssss
Please show full explanation!
Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
Given,
[tex]3x - 2y = 5[/tex]
[tex]xy = - 2[/tex]
Now,
[tex](3x - 2y) {}^{2} = (5) {}^{2} \\ [/tex]
Use the algebraic identity ⇻ (a - b)² = a² - 2ab + b²
[tex](3x - 2y) {}^{2} = (5) {}^{2} \\ 3x {}^{2} - 2 \times 3x \times 2y + 2y {}^{2} = 5 {}^{2} \\ 9 {x}^{2} - 12xy + 4y {}^{2} = 25 \\9x {}^{2} + 4y {}^{2} = 25 + 12xy \\ 9x {}^{2} + 4 {y}^{2} - 1 = 24 + 12xy[/tex]
✐ So, the value of 9x² + 4y² - 1 is 24 + 12xy
Now,
xy = - 2
So, 12xy = 12 × - 2 = - 24
•°• 24 + 12xy
= 24 + (-24)
= 24 - 24
= 0
⎆ The value of 9x² + 4y² - 1 is 0.ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
# ꧁❣ RainbowSalt2²2² ࿐
find the Midpoint M of the segment joining the points S=(-7,-8) an T= (3,-4)
Answer:
[tex]( -2 ,\:-6) [/tex]
Step-by-step explanation:
Given points are: [tex] S=(-7,-8)=(x_1, \:y_1) \:\&\:T= (3,-4)=(x_2, \:y_2) [/tex]
Midpoint of segment ST
[tex]M=( \frac{x_1+x_2}{2} ,\:\frac{y_1+y_2}{2}) [/tex]
[tex]M=( \frac{-7+3}{2} ,\:\frac{-8+(-4)}{2}) [/tex]
[tex]M=( \frac{-7+3}{2} ,\:\frac{-8-4}{2}) [/tex]
[tex]M=( \frac{-4}{2} ,\:\frac{-12}{2}) [/tex]
[tex]M=( -2 ,\:-6) [/tex]
Suppose a ship's load has 10 containers in each row from one side to the other, 15 containers in each row from front to back, and 8 layers of containers. How many containers are in the whole load?
Answer:
1200 Containers
Step-by-step explanation:
According To The Question, We Have
10 Containers in each Row from one side to other ( 10 length )15 Containers in each Row From front Side To Back (15 Breadth)8 layers of Containers (8 Height)By All this Data We Found That, Basically A Big Size Cuboid is Formed Here.
Now, For The Total Numbers Of Containers = 10×15×8 = 1200 Containers
A pair of shoes is 60% off if the sale price is now $33 find the original price
Answer:
$82.5
Step-by-step explanation:
40%-33
10%-8.25
100%-82.5
What is the rule for the reflection ?
Answer:
This idea of reflection correlating with a mirror image is similar in math.
This complete guide to reflecting over the x axis and reflecting over the y axis will provide a step-by-step tutorial on how to perform these translations.
First, let’s start with a reflection geometry definition
Math Definition: Reflection Over the X Axis
A reflection of a point, a line, or a figure in the X axis involved reflecting the image over the x axis to create a mirror image. In this case, the x axis would be called the axis of reflection.
Math Definition: Reflection Over the Y Axis
A reflection of a point, a line, or a figure in the Y axis involved reflecting the image over the Y axis to create a mirror image. In this case, theY axis would be called the axis of reflection.
What is the rule for a reflection across the X axis?
The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same.
Whats the Angle for A,B, and C? Ive been stuck on this problem for a while. It would be great if you helped
Answer:
b=57° (vertically opposite angles)
Step-by-step explanation:
57°+a+b+c=360° (angles around a point)
57°+57°+a+c=360°
114°+a+c=360°
a+c=360°-114°=246°
a=c (vertically opposite angles)
therefore 2a=246°
a=123°
b=123°
Solve for w:
w +6 > -18
Ow<-16
Ow>-16
Ow<-36
W > -36
Answer:
w> -24
Step-by-step explanation:
w +6 > -18
Subtract 6
w+6-6 > -18-6
w> -24
kevin ran 6/7 miles and his brother james ran 10 miles. How many miles did the two of them ran.
Answer:
16.7 miles
Step-by-step explanation:
6.7+10=16.7
The two of them ran 16.7 miles.
Classify the following triangle. Check all that apply
Step-by-step explanation:
it's a right angled triangle
it's also a scalene triangle because not all sides are equal