The surface area of a sphere is π sq.cm. If its radius is
doubled by,how much is its surface area increased ?
Answer:
hope it helps..........
A . expression A
B . expression B
C . expression C
D . expression D
ill mark u brainliest if u answer !
Answer:
answer choice B.
Step-by-step explanation:
can anyone solve this?
x + y = 5.90
2x + 4y = 16.80
95 is 5% of what number
1,900 I think, I hope this helps
Answer:
1900 that's what was right for me.
Step-by-step explanation:
8th grade math! If you know the answer to this problem please interact(:
Answer:
the third one (-2,1)
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
so solving the first one we get
y=2x+5
and the second one we get
y=5x+10+1
y=5x+11
substiuting we get
2x+5=5x+11
3x=-6
x=-2
and y= 1
so it would be C
if my answer helps please mark as brainliest.
You are making curtains for your little sister's dollhouse. There are 24 windows on the dollhouse and each
needs 3.75 inches of fabric for curtains. How much fabric will you need?
(please help I only have a couple of minutes)
Answer:
90 inches
Step-by-step explanation:
24 x 3.75 which is the same as 24 x 3 3/4 which is the same as
24 x 15/4 = 6 x 15 = 90
1 and 1/5y+3/10y-1/2y=1/3y+2/5
Answer: y=12/20=0.6
Step-by-step explanation:
Rephrase the given equation
1 and 1/5y+3/10y-1/2y=1/3y+2/5
6/5y+3/10y-1/2y=1/3y+2/5
Find the GCF (greatest common factor) and multiply it on both sides
(6/5y+3/10y-1/2y)×30=(1/3y+2/5)×30
36y+9y-15y=10y+12
Add like terms together
30y=10y+12
Subtract 10y on both sides
30y-10y=10y+12-10y
20y=12
Divide 20 on both sides
20y/20=12/20
y=12/20=0.6
Hope this helps!!
Please let me know if you have any questions
Nancy has 1/3 of a cup of strawberries. She wants to share them with her 4 friends. How much will each of her friends get?
I need help with Geometry
Answer:
1st option
Step-by-step explanation:
We see that one angle is 28, so because of alternate interior angles, angle two is also 28. Angle one is 90 because those two lines are perpendicular and the only available options for A is 90, and measurement angle 3 is going to be 180 - (90 + 28) (sum of interior angles in a triangle) and you're going to get 62.
Let me know if you have any questions
Evaluate the exponential function
f(x) = 3x ; x = -2
Answer:
-6
Step-by-step explanation:
Plug (-2) in for X in the equation
3(-2)
-6
7(x-2)=28 Can somebody help me and show the steps?
The equation y+ 3 = 5(x - 3) represents a linear function. What is the y intercept of the equation?
Answer:
-18
Step-by-step explanation:
If you're looking for the y-intercept for this equation this means that x = 0.
So substitute x as 0 in the equation and you'll get the following.
y + 3 = 5 (0 - 3)
y + 3 = -15
y = -18
Simplify the expression:
(6y + 10) - (2y + 3)
show work if u can
Answer:
4y + 7
Step-by-step explanation:
(6y + 10) - (2y + 3)
6y - 2y = 4y
10 - 3 = 7
4y + 7
solve the equation t8/t2 = _____
Answer:
[tex]t^{6}[/tex]
Step-by-step explanation:
I am going to assume exponents for this question.
[tex]\frac{t^{8}}{t^{2}}[/tex]
When dividing exponents with the same base, it is simply subtraction, so 8 - 2 = 6 which produces the answer.
Jack and beth are selling wrapping paper for a school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of shiny wrapping paper. Jack sold 5 rolls of plain and 8 rolls of shiny for a total of $190. Beth sold of 5 rolls plain and 3 shiny for a total of $90. Find the cost of each roll of wrapping paper
Answer:
Cost of a roll of plain wrapping paper = $6
Cost of a roll of shiny wrapping paper = $20
Step-by-step explanation:
Let [tex]x[/tex] denotes cost of a roll of plain wrapping paper and [tex]y[/tex] denotes cost of roll of shiny wrapping paper.
Jack sold 5 rolls of plain and 8 rolls of shiny for a total of $190.
[tex]5x+8y=190\,\,\,(i)[/tex]
Beth sold of 5 rolls plain and 3 shiny for a total of $90.
[tex]5x+3y=90\,\,\,(ii)[/tex]
Subtract (ii) from (i).
[tex]8y-3y=190-90\\5y=100\\y=20[/tex]
Put [tex]y=20[/tex] in (ii)
[tex]5x+3(20)=90\\5x+60=90\\5x=90-60\\5x=30\\x=6[/tex]
Therefore,
Cost of a roll of plain wrapping paper = $6
Cost of a roll of shiny wrapping paper = $20
What is the volume of this figure?
Answer:
875 ft^3
Step-by-step explanation:
Pick them apart starting at the bottom. The formul used is V=lwh
Starting at the bottom we have we have a sqare of 5 ft = 5ft^3= V = 125 ft^3
Then we have a rectangular prism: 5 x 5 x 20 = V = 500 ft^3
Third we have 5 x 5 x 10 = V = 250 ft3
125+500+250 = 875 ft^3
AYO PLEASE HELP ILL GOVE YOU BRAINLIEST
it's a i think, hope this helps
The temperature dropped 20 degrees from noon to midnight. The temperature at midnight was 24°F. Write and solve an equation to find the temperature at noon?
Was hit with a hard one. Can someone explain this to me please?
Answer:
Step-by-step explanation:
Which of the following quantities are to the left of zero on a number line? Select three that apply.
A The opposite of 7
B The opposite of -9
С
3
D
-4
m
Answer:
A, D, and E
Step-by-step explanation:
because they are negative
explain why 1/12 + 1/2= 7/12
Answer:
1/12 + 1/2 = 1/12 + 6/12 - 1+6/12 = 7/12
Step-by-step explanation:
hope this makes sense
Step-by-step explanation:
1/2 of 12/12 is 6/12.
So, this means: 1/12 + 1/2 = 7/12
is
1/12 + 6/12 = 7/12
can you help me solve the linear equation algebraically y=-x-3. y=-2x-8
Answer:
I can't it's to hard try studying
Mia's dog, Chulo, weighs 13.8 pounds. How many ounces does her dog weigh?
Answer:
220.8 ounces
Chulo weighs 220.8 ounces
Can someone plz help
Answer:
it should be 1/4
Step-by-step explanation:
Answer:
1/4 because it depends on how many times you flip it
Write an inequality for the graph below.
'न
34
10
।। 12 13 14
Answer:
i like cheese wbu hahahahahaha
Help with this plz ASAP
Answer: y=2x-4
Step-by-step explanation:
pls help me for brain list and a thanks and a 5 star review
3/4 + 2/4 = 6/4 or 3/2
Use the number line to add, second choice is simplified
3. 5x² + 13x = -6 * SHOW WORK *
4х +7
у+ 1
Зу — 11
12x – 1