Answer: 3 054 in^2
Step-by-step explanation:
Sphere volume formula = 4/3 pi r^3
So... 4/3 pi 9^3
= 3 053.63 in^2
Of the 21 children at a park, 5 of them are playing on the swings. What is the approximate
percent of children that are playing on the swings?
А: 5%
B: 25%
с: 40%
D: 50%
Please no link! Explain and I’ll mark as brainlest!
The Answer Is B
Use proportions to find x% of the children playing on the swings.
[tex] \frac{21}{100} = \frac{5}{x\%} [/tex]
[tex]x = 23.80952380\%[/tex]
Meaning B is correct.
EASY MATH PLEASE HELP!
EXPLANATION REQUIRED
NO LINKS PLEASE
I WILL GIVE BRAINLIEST!
Find the distance between the parallel lines. y=2x+3 and y=2x-1
Answer:
The answer is 1.789
1. An account is opened with a balance of $2800
earning 4.25% simple interest. What will be the
balance in the account in 30 years?
Answer:
The simple interest in the account will be $3570 and the total amount including principle and simple Interest will be $6370Step-by-step explanation:
firstly ,
Given That
principal(p)=$2800
Rate(R)=4.25%
Time(T)=30 years
now , we have from formula
simple interest (S.I)= P × T ×R / 100
= (2800×30×4.25) / 100
= $3570
Therefore , Simple Interest in 30 years will be $3570
now , we know
Amount(A) = Principal (P) + Interest (I)
= $2800 + $3570
= $ 6370
Therefore the simple interest in 30 years will be $3570 and the total amount in the bank will be $6370 .
Sasha has a rectangular garden 8 m by 10 m. The garden has a path surrounding it which is 2 m wide. What is the total area of the garden and pathway? A. 168 m^2 B. 120 m^2 C. 116 m^2 D. 96 m^2 E. 84 m^2
Answer:
b
Step-by-step explanation:
Area of a rectangle = length x width
length = 8 + 2 = 10
width = 10 + 2 = 12
10 x 12 = 120
What is the value of y=7— 2x when x
=4?
Answer:
y=-1
Step-by-step explanation:
y=7-2x x=4
plug in x : y=7-2*4
y=7-8
y=-1
Answer:
-1
Step-by-step explanation:
-2 times 4 = -8
7-8=-1
Figure WXYZ is a square. Three of the vertices are at X(1, 3), Y(1, 2),
and Z( 4, 2). What is the location of W?
Answer:
W(4,3)
Step-by-step explanation:
how is that a square?
PLZ HELP ME
What is the quadratic regression equation for the data set?
yˆ=−0.175x2−3.786x+121.119
yˆ=−0.175x2+3.786x−121.119
yˆ=−0.175x2+3.786x+121.119
yˆ=−0.175x2−3.786x−121.119
x y
6 100
3 110
10 50
3 90
5 120
15 30
9 70
Answer:yˆ=−0.175x2−3.786x+121.119
look at picture
Step-by-step explanation:
The quadratic regression equation for the data set is:
y^ = -0.175x²-3.786x+121.119
What is Quadratic Regression Equation?Quadratic regression is the process of determining the equation of a parabola that best fits a set of data. This set of data is a given set of graph points that make up the shape of a parabola. The equation of the parabola is y = ax² + bx + c, where a can never equal zero.
According to the given problem,
Let us choose any value of x,
x = 10
For this value of x we can see that the respective value of y= 50
Substituting the value of x in the equations to see which equation satisfies the value of y as 50.
Substituting the value of x in the equation:
y^ = -0.175x²-3.786x+121.119
y^ = 50
Hence, we can conclude that y^ = 0.175x² - 3.786 + 121.119 is the quadratic regression equation for the given data set.
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What is the slope of the line y = 6x + 3?
3
-6
6
-3
Answer:
the answer is 6
Step-by-step explanation:
slope = m
y = mx + c
m = 6
a 400 g of a liquid of density 1.6g/cm3 is made from mixing liquids of density 1.2g/cm3 and 1.8g/cm3 find the mass of the liquid of density 1.2g/cm3
Answer:
133.33g
Step-by-step explanation:
Let the:
Mass of 1.2g/cm³ of liquid = x
Mass of 1.8g/cm³ of liquid = y
From our Question above, our system of equations is given as:
x + y = 400........ Equation 1
x = 400 - y
1.2 × x + 1.8 × y = 1.6 × 400
1.2x + 1.8y = 640..... Equation 2
We substitute, 400 - y for x in Equation 2
1.2(400 - y) + 1.8y = 640
480 - 1.2y + 1.8y = 640
- 1.2y + 1.8y = 640 - 480
0.6y = 160
y = 160/0.6y
y = 266.67 g
Solving for x
x = 400 - y
x = 400 - 266.67g
x = 133.33g
Therefore, the mass of the liquid of density 1.2g/cm³ is 133.33g
.24/.624 in percentage form
EASY BRAINLIEST PLEASE HELP!!
-if you answer correctly ill give you brainliest which will give you 35pts-
(if you put links or don't answer accordingly im reporting your account)
The correct answer is 88/9ft or 9.7ft
On a very cold morning, it was -8°F. As the day went on, the temperature rose 2 degrees each hour. Which equation shows the temperature over time?
Answer:
Step-by-step explanation:
t = 2h-8
since you didn't put in the equations, just put in what ever variable is where t is at and any variable other than t for the h :)
Answer:
Please put equations, so I can able to give you ans
ASAP HELP PLS ASAP ASAP
Answer:
120cm2
Step-by-step explanation:
6 x 8 = 48cm2
8 x 9 = 72cm2
48 + 72 = 120cm2
Answer:
120 m^2
Step-by-step explanation:
The box on the left is 6m x 8m, thus the area would be 48 m^2.
The box on the right is 9m x 8m, thus the area would be 72 m^2.
Adding both areas would give you the total area of 120 m^2.
What is the complement to Angle 1 if it measures 63 degrees
Answer:
27º
Step-by-step explanation:
complementary angle is equal to 90º
90 - 63 = 27
The longest straw that can fit inside a 5-inch cylindrical cup, if the straw is placed at an angle in the cup, is 6
inches
What is the approximate length of the cylinder's radius
Answer:
yo i do primavara to imma do 3.9
Step-by-step explanation:
oh and also if your grades are bad just do to the dashboard page and highlight you grade percentedge and click inspect if you know and if you see you number pecent on the inspect and right click and click edit as htl and change it to any percent you want then just click out of the inspec option and you will have A S AND B S
The approximate length of the cylinder's radius will be 3.3 inches. Then the correct option is A.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
The longest straw that can fit inside a 5-inch cylindrical cup, if the straw is placed at an angle in the cup, is 6 inches.
Then the approximate length of the cylinder's radius will be given by the Pythagoras theorem.
Let x be the length of the radius. Then we have
x² = 6² - 5²
x² = 36 - 25
x² = 11
x = √11
x = 3.316
x ≅ 3.3
More about the geometry link is given below.
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Evaluate if m=10: -2m + 6
Answer:
-14
Step-by-step explanation:
-2 x 10 = -20
-20 + 6 = 14
Therefore -2m + 6 = 14
A company uses paper cups shaped like cones for its water cooler. Each cup has a height of 9cm, and the base has a radius of 4cm. How much water is needed to fill 150 cups? Use 3.14 for π, and do not round your answer.
Answer:
22608cm³
Step-by-step explanation:
Step 1
We find how many liters of water can be contained in 1 cup. We do this by finding the volume of the cup.
Cup is shaped as a cone
The volume of a cone = πr²h/3
Where
r = radius = 4cm
h = height = 9cm
π = 3.14
Hence,
Volume of the cone (cup) =
3.14 × 4² × 9/3
= 150.72 cm³
Step 1
How much water is needed to fill 150 cups?
1 cup = 150.72 cm³ of water
150 cups = x
Cross Multiply
x = 150 × 150.72 cm³
x = 22608 cm³ of water
Therefore, 22608cm³ of water is needed to fill 150 cups
Cost of Water Bottles Number of Water Bottles Cost 3 5 $3.90 $6.50 $10.40 8 What is the price per water bottle? Enter the answer in the box.
Answer:
2.6
Step-by-step explanation:
it would be 2.6 because you minus 3.90 and 6.50
caculate the value of this expression 60-(-80)
pls help me solve both
Answer:
The first one is 140 and the second one is -2.6
Step-by-step explanation:
Your welcome !
just use a calculator lol
Answer:
19 is D
20 is A
Step-by-step explanation:
19. 60+80=140
20. 2.3-4.9=-2.6
Is -6.5555 a rational or irrational number?
Answer:
Rational
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
Rational.
Step-by-step explanation:
Rational numbers are the numbers that can be expressed in the form of a ratio.
Pls help !! Will give brainliest
Answer:
the first one (25x + 30y is less than or equal to 100)
Step-by-step explanation:
money for clothing set x amount of sets plus pairs of shoes has to be less than or equal to 100 dollars.
Help i need to find this,
Answer:
Adjacent
Step-by-step explanation:
They are next to each other ^^
Estimate 121.45 ÷ 10.87
Answer:
11
Step-by-step explanation:
121057003
Sphere
Find the area of
radius tem
Area - 300cm-
30cm ainda
Answer:
Step-by-step explanation:
Circumference (Perimeter) of Circle Formula: The circumference of a circle is determined by the following formula
C
=
D
×
π
where
D
is the length of the diameter of the circle and
π
≈
3.14
.
Circumference (Perimeter) of Circle Formula: The circumference of a circle is determined by the following formula
C
=
2
×
r
×
π
where
r
is the length of the radius of the circle and
π
≈
3.14
.
Area of Circle Formula: The area of a circle is determined by the following formula
A
=
r
×
r
×
π
=
r
2
×
π
Find two integers whose sum is 20 and product Is 100
Answer: 10
Step-by-step explanation:
10+10 = 20
10 x 10 = 100
mi would do another but i supposed to be in class :P
The two Integers are [tex]10,10.[/tex]
What is Integer ?An Integer number that can be written without a fractional component.
We have,
Sum of two Integers [tex]=20[/tex]
Product of two Integers [tex]=100[/tex]
Now,
Let,
One integer [tex]=x[/tex]
Another integer [tex]=y[/tex]
So,
According to the question,
[tex]x+y= 20[/tex] [tex].....(i)[/tex]
[tex]x*y=100[/tex]
⇒ [tex]x=\frac{100}{y}[/tex] [tex].....(ii)[/tex]
Now,
Putting value of x in equation (i),
We get,
[tex]\frac{100}{y}+y= 20[/tex]
[tex]100+y^2=20y[/tex]
[tex]y^2-20y+100=0[/tex]
Using middle term split method,
[tex]y^2-10y-10y+100=0[/tex]
[tex]y(y-10)-10(y-10)=0[/tex]
[tex](y-10) (y-10)=0[/tex]
We get,
[tex](y-10)=0[/tex] and [tex](y-10)=0[/tex]
So, [tex]y=10[/tex]
Now, putting value of y in in equation (i),
[tex]x+10=20[/tex]
[tex]x=10[/tex]
So, two integers are [tex]10,10.[/tex]
Hence, we can say that the two Integers are [tex]10,10.[/tex]
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... tbh idek anymore
Caroline has 12 cherries and 13 strawberries. What percentage are the cherries?
Answer:
12/25=48%
Step-by-step explanation:
total=denominator=12+13=25
numerator=no of cherries=12
12/25=x/100
1200=25x
x=48%
A percentage is a number or ratio that represents a fraction of 100.
Percentage formula = (Required number / Total number) x 100
The percentage of cherries is 48%.
What is a percentage?A percentage is a number or ratio that represents a fraction of 100.
Example:
50% = 50 /100 = 1/2
25% = 25/100 = 1/4
We have,
Number of cherries = 12
Number of strawberries = 13
The total number of fruits:
= 12 + 13
= 25
Percentage formula = (Required number / Total number) x 100
The percentage of cherries:
= (Number of Cherries / Total number of fruits) x 100
= (12 / 25) x 100
[ 25 x 4 = 100 ]
= 12 x 4
= 48%
Thus,
The percentage of cherries is 48%.
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2. Which unit would you use (centimetres,
square centimetres, or cubic centimetres)
to measure each of the following?
a) the length of ribbon around a photo:
frame
b) the wrapping paper covering a gift
c) the distance around a pattern block
d) the amount of space in a shoe box
e) the amount of soil in an ant farm
Step-by-step explanation:
A. square centimeters
B. centimeters
C. square centimeters
D. centimeters
E. cubic centimeters
Four-fifths of a math class is made up of female students. What is the
ratio of male students to female students?
I am answering this so the other answer can get brainliest since they were the ones who gave you the answer :)