Answer:
Step-by-step explanation:
The trick is to find the radius. The surface area does that.
A =4* pi * r^2
20096 = 4 * 3.14 * r^2
20096 / 4 = 3.14 * r^2
5024 = 3.14 * r^2
5024 / 3.14 = r^2
r^2 = 1600
√r^2 = √1600
r = 40
Now all you do is use r to find the Volume
V = (4/3) * 3.14 r^3
V = (4/3) * 3.14 * 40^3
V = 1.333 * 3.14 * 64000
V = 26796.67
Identify ALL sets of parallel and perpendicular lines in this image.
Answer: D
Step-by-step explanation: look at answer D and look at the picture and compare answer D with the picture and that is why the answer is D.
Julie ate 1/4 of the pie. If the pie had eight slices, how many slices did she eat
Step-by-step explanation:
4/4 of the pie = 8 slices
1/4 of the pie = 8 slices / 4 = 2 slices
Hence Julie ate 2 slices of the pie.
Answer:
2 slices of pie she ate
Step-by-step explanation:
She ate 2/8th of the slice.
How much fabric is needed to
create the sail below?
14ft by 9ft
An equation showing the
proportional relationship
between x and y can be written
gy. The same relationship
can also be written y = kx.
=
What is the value of k in the
second equation? (Type the
decimal form for your answer.)
Simplify x + 4 - 5x - 2.
F. -5x + 2
G. -5x - 2
H. -4x + 2
I. -4x - 2
Answer:
i -4x - 2
Step-by-step explanation:
Please help me with the math problem. Part 1
Answer:
Step-by-step explanation:
r:=interest rate =7%
p = unknown
Principle + interest = 4280
t = 1 year
Formula
Total = p*r*t + p
4280 = p*(1 + r*t)
4280 = p*(1 + 7/100 * 1)
4280 = p (1.07)
4280 / 1.07 = p
P = 4000
===================
What this means is that if you loan out 4000 dollars for a year at 7%, you will get 280 dollars in return (plus of course your 4000). However in this day and age, try getting 7%.
The 100 dollar problem is the same thing. This time you have P and you want the total.
Total = p(1 + r*t)
Total = 100 (1 + 7/100 * 1
Total = 100 ( 1 + 0.07)
Total = 107
So the principle is given and the value of the investment after 1 year is 107 dollars.
A recipe calls for 1/3 cup of sugar for every 1/2 cup of flour. In cups, how much sugar is needed per one cup of flour?
Answer:
1 equals two of 1/2 which means you get the equation 1/3 x 2 for the answer
A rectangle has a length of 28 feet less than 6 times its width. if the area of the rectangle is 98 square feet, find the length of the rectangle.
Answer:
w = 18 is the solution
The equation for this problem is 6w - 28 + w = 98
w stands for width
Step-by-step explanation:
7x - 28 = 98 Collect like terms
7w = 98 +28 Move the constant to the right hand side and change its sign
7w = 126 Add the numbers
w = 18 Divide both sides of the equation by 7
Write the negation of each of the following logical expressions so that all negations immediately precede predicates. In some cases, it may be necessary to apply one or more laws of propositional logic.
a. ∃x ∀y(P(x,y) → Q(x,y))
b. ∃x ∀y(P(x,y) → P(y,x))
c. ∃x ∃y P(x,y) ∧ ∀x ∀y Q(x,y)
Answer:
a. Negation of ∃x ∀y(P(x,y) → Q(x,y)) = ∀x ∃y P(x,y) ∧ ¬Q(x,y) ]
b. Negation of ∃x ∀y(P(x,y) → P(y,x)) = ∀x ∃y [ ¬P(x,y) ∨ ¬P(y,x) ] ∧ [P(x,y) ∨ P(y,x)]
c. Negation of ∃x ∃y P(x,y) ∧ ∀x ∀y Q(x,y) = ∀x ∀y ¬ [P(x,y)] ∨ ∃x ∃y ¬ [Q(x,y)]
Step-by-step explanation:
a.∃x ∀y(P(x,y) → Q(x,y))
Negation = ¬ [ ∃x ∀y(P(x,y) → Q(x,y)) ]
= ∀x ¬ [ ∀y(P(x,y) → Q(x,y)) ]
= ∀x ∃y ¬ [ (P(x,y) → Q(x,y)) ]
= ∀x ∃y ¬ [ ¬P(x,y) ∨ Q(x,y) ]
= ∀x ∃y P(x,y) ∧ ¬Q(x,y) ]
Negation of ∃x ∀y(P(x,y) → Q(x,y)) = ∀x ∃y P(x,y) ∧ ¬Q(x,y) ]
b. ∃x ∀y(P(x,y) → P(y,x))
Negation = ¬ [ ∃x ∀y(P(x,y) → P(y,x)) ]
= ∀x ¬ [ ∀y(P(x,y) → P(y,x)) ]
= ∀x ∃y ¬ [ (P(x,y) → P(y,x)) ]
= ∀x ∃y ¬ [ ( P(x,y) ∧ P(y,x) ) ∨ ( ¬P(x,y) ∧ ¬P(y,x) )]
= ∀x ∃y ¬ [ P(x,y) ∧ P(y,x) ] ∧ ¬[ ¬P(x,y) ∧ ¬P(y,x) ]
= ∀x ∃y [ ¬P(x,y) ∨ ¬P(y,x) ] ∧ [ P(x,y) ∨ P(y,x) ]
∴ we get
Negation of ∃x ∀y(P(x,y) → P(y,x)) = ∀x ∃y [ ¬P(x,y) ∨ ¬P(y,x) ] ∧ [P(x,y) ∨ P(y,x)]
c. ∃x ∃y P(x,y) ∧ ∀x ∀y Q(x,y)
Negation = ¬ [ ∃x ∃y P(x,y) ∧ ∀x ∀y Q(x,y) ]
= ¬ [ ∃x ∃y P(x,y) ] ∨ ¬ [ ∀x ∀y Q(x,y) ]
= ∀x¬ [ ∃y P(x,y) ] ∨ ∃x ¬ [ ∀y Q(x,y) ]
= ∀x ∀y ¬ [ P(x,y) ] ∨ ∃x ∃y ¬ [ Q(x,y) ]
∴ we get
Negation of ∃x ∃y P(x,y) ∧ ∀x ∀y Q(x,y) = ∀x ∀y ¬ [ P(x,y) ] ∨ ∃x ∃y ¬ [ Q(x,y) ]
Evaluate the expression for the given variable value.
p+ 4/15;p=4/5
Answer:
16/15 or 1 1/15
Step-by-step explanation:
Subsitute p for 4/5
4/5+4/15
make common denominators
12/15+4/15
=16/15
Gabrielle’s age is two times mikhail’s age. The sum of their ages is 60.what is makhail age?
Answer:
20
Step-by-step explanation:
if their ages total is 60 and gabrielle's is two times mikhail's age, that means that Mikhail would be twenty because their age times 2 would be 40 and 40 plus 20 is 60.
Answer:
A) g = 2m OR g -2m = 0
B) g + m = 60
Multiplying A) by -1
A) -g + 2m = 0 then adding this to B)
B) g + m = 60
3m = 60
Mikhail’s age = 20
Gabrielle's age = 40
Step-by-step explanation:
The amount Max earned last week can be modeled by the expression 25 plus 5 i greater or equal than 95 comma where i is the number of items he sold. Which number line shows how many items he could have sold last week?
Answer:
Line 3 (or C)Step-by-step explanation:
The inequality as per description is:
25 + 5i ≥ 955i ≥ 95 - 255i ≥ 70i ≥ 70/5i ≥ 14i = [14, + ∞)This is shown on the number line 3 on the picture or option C
Answer
Line 3 (or C)
Step-by-step explanation:
25 + 5i ≥ 95
5i ≥ 95 - 25
5i ≥ 70
i ≥ 70/5
i ≥ 14
i = [14, + ∞)
12. Consider the general rational equation a/b=c/d
(a) What equation results if you multiply both sides of this equation by bd/1?
(b) What does the expression bd represent in the equation above?
Part (a)
Answer: ad = bc
-------------------------
Explanation:
In the equation a/b = c/d, we have b and d in the denominator.
If we multiply both sides by bd, then the denominators will cancel. The expression bd is the same as bd/1.
As a similar example, consider the equation
a/b = 12
if we multiply both sides by b, then we clear out the denominator to end up with a = 12b
As another example, let's consider
a/b = c
Multiplying both sides by b leads to
a = bc
The same idea applies with the denominator d as well.
When going from a/b = c/d to ad = bc, your textbook may refer to this process as "cross multiplication".
=================================================
Part (b)
Answer: bd is the product of the denominators
-------------------------
Explanation:
Often in math, writing two variables next to each other represents multiplication.
bd is the same as b*d which means "b times d". The term "product" is the result of multiplying two or more values.
b and d are both in the denominator of each fraction, so bd represents the product of the denominators.
If you deposited $500 in an account that earned 3% interest each year, how much would you have in total after 5 years?
A
$75
B
$425
C
$575
D
$8,000
Answer:
I believe its C, have a good day!
Step-by-step explanation:
A = $575.00
I = A - P = $75.00
Equation:
A = P(1 + rt)
Calculation:
First, converting R percent to r a decimal
r = R/100 = 3%/100 = 0.03 per year.
Solving our equation:
A = 500(1 + (0.03 × 5)) = 575
A = $575.00
The total amount accrued, principal plus interest, from simple interest on a principal of $500.00 at a rate of 3% per year for 5 years is $575.00.
whoever helps gets brainliest first
Answer:
a
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
this is the answer
pls give me brainliest
tooth is an example of early dental care commonly found in human skull
Answer:
True.
Step-by-step explanation:
Select the correct answer.
Trang has a job planting shrubs beside the highway. He needs to plant 500 shrubs in a week. So far, he has planted this many:
Monday 84 Tuesday 92
Wednesday 87 Thursday 104
How many shrubs does Trang need to plant on Friday?
OA. 133
ОВ.
367
OC 33
OD.
No more shrubs are needed.
Reset
Next
Answer:
133
Step-by-step explanation:
84+92+87+104=367
500-367=133
solve i 4 = -1
true or false
Answer:
False
Step-by-step explanation:
Answer:
false
Step-by-step explanation:
Can you help me? Please I need it!
Answer:
A = 44.5 square feet
Step-by-step explanation:
you can separate the 5' x 5' square on top from the trapezoid on the bottom
A(square) = s² = 5² = 25
A(trapezoid) = 1/2h·(sum of 2 bases)
= 1/2 (6) (5 + 8)
= 3(13)
= 39/2 = 19.5
Area of total shape = 25 + 19.5 = 44.5
Ethan buys a video game on sale. If the video game usually cost 39.99, and it was on sale for 20% off, how much did Ethan pay?
Answer:
He pays 31.99
He saved $8
Step-by-step explanation:
Find the original price (39.99)
Get the the discount (20%)
Calculate the savings: 20% of $39.99 = $8 (rounded)
Subtract the savings from the original price to get the sale price: $39.99 - $8 = $31.99
Answer:
He pays: 31.99
Step-by-step explanation:
Original price: 39.99
Discout: 20%
Savings: 20% of 39.99= 7.998
7.998 rounded: 8$
Savings minus OG price: 39.99-8
= 31.99
London made a paperclip sculpture that weighed about 78 grams. How many kilograms does his
sculpture weigh
Answer:
0.078 kg
Step-by-step explanation:
The conversion from grams to kilograms involves a division by a factor of 1000 as shown below:
78 / 1000 = 0.078
Therefore the sculpture weights 0.078 kg
36y=9x+1/3y Solve for y
Answer:
y= 27x/107
Step-by-step explanation:
let me know if you want a step by step explanation!
Which equation is the standard form of -8x + 3x ^2= -19?
Answer:
y = 3x + 2
Step-by-step explanation:
is sometimes called "Standard Form", but is more properly called the "General Form".
A number with one or more digits to the right of the decimal
point is called a
Which is the equation of a line in point-slope form given the following two points (6,15) and(11,27.5)
Answer:
y = 2.5x + 0
Step-by-step explanation:
Use the slope formula and slope-intercept form y = mx + b to find the equation.
Is it impossible to check that 4(n + 2) = 4n + 8 for every value of n? How do you know that this equation is true for any value of n?
NEED HELP FOR TEST
Answer:
Okay I'll try to answer this from what you're trying to ask:) and good luck on your test!
Step-by-step explanation:
So to check that 4(n-2) is equal to 4n+8, you would do the distributive property. Now the distributive property is when you take the number outside of the parentheses (in this case 4) and multipy it by what is inside the parentheses (n and 2). With that, you'll get 4 times n which is 4n and 4 times 2 which is 8, combine them and voila! MAKE SURE YOU LOOK AT THE SIGN INSIDE OF THE PARENTHESES
4(n+2)
=4*n + 2*4
=4n+8
Here's another example
3(n-5)
=3*n - 3*5
=3n-15
Hope that helps:)
scientific notation (8 x 10^3)-(1.7 x 10^2)
Answer:
78 x 10² or 7.8 x 10³
Step-by-step explanation:
you have to get the exponents the same before you can subtract the coefficients
8 x 10³ = 80 x 10²
80 x 10² - 1.7 x 10² = 78 x 10² or 7.8 x 10³
What is the least common multiple of 4 and 10? 2 4 20 40
Answer:
its 20 :)
Step-by-step explanation:
lol
Answer:
20
Edge 2021 :)
Step-by-step explanation:
A plane can fly 520 miles in the same time as it takes a car to go 120 miles. If the car travels 100 mph slower than the plane , find the speed of the plane .
Answer:
420 miles
Step-by-step explanation:
i think
420
Step-by-step explanation:
because the car is 100mph below the plane
Complete the steps below to solve the problem using equations. Part A Let the variable g represent the measurement of angle G. Write an equation that you can use to solve fors
Answer:The sum of the angle measurements in a triangle is 180°. If e, f, and g are the measurements of angles E, F, and G, respectively, e + f + g = 180°.
Angle E is a right angle, so e is 90°. From the given information, f is 30°. Substitute the values of e and f in the equation to solve for g : 90° + 30° + g = 180°.
Step-by-step explanation:
i copied the answer bc i finished and that was the answer.
Answer:
:The sum of the angle measurements in a triangle is 180°. If e, f, and g are the measurements of angles E, F, and G, respectively, e + f + g = 180°.
Angle E is a right angle, so e is 90°. From the given information, f is 30°. Substitute the values of e and f in the equation to solve for g : 90° + 30° + g = 180°.Step-by-step explanation:
