Answer:
The answer is below
Step-by-step explanation:
River racing us a company that provides inner tubes for a children and adults to float the river. The child tube has a diameter of 2 feet and the adult tube has a diameter of 3 feet. River racing owns a total of 160 tubes and the total diameter of all the tubes is 430 feet. Write a system to determine the number of child tubes , c , and number of adult tubes, a , that river racing owns.
Solution:
Let c represent the number of child tubes and let a represent the number of adult tubes owned by river racing.
Given that there are a total of 160 tubes, hence:
a + c = 160 (1)
The total diameter of all tubes is 430 feet, hence:
3a + 2c = 430 (2)
To find a and c, we have to solve equation 1 and 2 simultaneously. multiply equation 1 by 2 and subtract from 2:
a = 110
Put a = 110 in eqn 1:
110 + c = 160
c = 50
What is the vertex of the following quadratic equation?
y = 7(x + 5)2 + 4
A. (5,4)
B. (-4,5)
C.(-5, 4)
D. (7,-4)
Answer:
C.(-5, 4)
Step-by-step explanation:
The vertex form of a parabola of this type is:
y = a ( x − h ) 2 + k [1]
where ( h , k ) is the vertex.
Explanation:
Given:
y = 7 ( x + 5 )² + 4 [2]
We can convert equation [2] into the same form as equation [1] by writing
+5 as − − 5 :
y = 7 ( x − − 5) ² + 4 [3]
We observe that the vertex is
( − 5 , 4 )
hope it will help :)
Will give brainliest if correct
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Click and place the correct answers inside the empty boxes.
Answer: put the parallelograms in the box that says 2 pairs of parallel sides next put the squares in the box that says 4 right angles the put rectangles in the box that says 4 congruent sides and last put rhombuses in the middle box that says 4 right angles and 4 congruent sides
Step-by-step explanation:
Question 4: Expand -4(3g + 6)
Answer:
-12g - 24
Step-by-step explanation:
-4(3g + 6)
-12g - 24
60 tickets to a concert was sold. Adult tickets cost $5 while children’s tickets cost $3.50. A total of $250 was collected. How many adult and children tickets were sold?
Answer:
Number of adults tickets sold = x
= 26.67 tickets
Number of children tickets sold = y = 33.33 tickets
Step-by-step explanation:
Let
Number of adults tickets sold = x
Number of children tickets sold = y
x + y = 60 (1)
5x + 3.50y = 250 (2)
From (1)
x = 60 - y
Substitute x = 60 - y into (2)
5x + 3.50y = 250
5(60 - y) + 3.50y = 250
300 - 5y + 3.50y = 250
- 5y + 3.50y = 250 - 300
- 1.50y = 50
y = -50/-1.50
y = 33.33
Substitute y = 33.33 into 1
x + y = 60
x + 33.33 = 60
x = 60 - 33.33
x = 26.67 tickets
Number of adults tickets sold = x
= 26.67 tickets
Number of children tickets sold = y = 33.33 tickets
(BRAINLIEST!!) Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
The polygons are similar, but not necessarily drawn to scale. Find the value of x.
question 3/4
Answer:
i am having trouble with that too
Step-by-step explanation:
Answer:
Since we are told that the two given polygons are said to similar, their corresponding side lengths are proportional to each other.
so to solve
(x - 3)/2.5 = 16/4
(x - 3)/2.5 = 4
Multiply both sides by 2.5
x - 3 = 4 × 2.5
x - 3 = 10
Add 3 to both sides
x = 10 + 3
x = 13
So the value of x is 13.
hope this helps
Take a factor out of the square root:
Answer:
[tex]-y\sqrt{3}[/tex]
Step-by-step explanation:
Under the radical there is a perfect square, one can take the perfect square out, and write it by its square root. The result of taking the principal square root is always positive, but it is given that the perfect square factor is negative, thus, one must multiply the square root by the negative sign to ensure that the result is positive.
Answer:
[tex]-y\sqrt{3}[/tex]
Step-by-step explanation:
what is the derivative of 4x+ k
Answer:
[tex]\displaystyle \frac{dy}{dx} = 4[/tex]
General Formulas and Concepts:
Calculus
Differentiation
DerivativesDerivative NotationDerivative Property [Multiplied Constant]: [tex]\displaystyle \frac{d}{dx} [cf(x)] = c \cdot f'(x)[/tex]
Derivative Property [Addition/Subtraction]: [tex]\displaystyle \frac{d}{dx}[f(x) + g(x)] = \frac{d}{dx}[f(x)] + \frac{d}{dx}[g(x)][/tex]
Basic Power Rule:
f(x) = cxⁿf’(x) = c·nxⁿ⁻¹Step-by-step explanation:
*Note:
Treat k as an arbitrary constant.
Step 1: Define
Identify
[tex]\displaystyle y = 4x + k[/tex]
Step 2: Differentiate
Derivative Property [Addition/Subtraction]: [tex]\displaystyle y' = \frac{d}{dx}[4x] + \frac{d}{dx}[k][/tex]Rewrite [Derivative Property - Multiplied Constant]: [tex]\displaystyle y' = 4 \frac{d}{dx}[x] + \frac{d}{dx}[k][/tex]Basic Power Rule: [tex]\displaystyle y' = 4[/tex]Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Differentiation
Molly ate 1/4 pint of ice-cream. Her sister did not want the last 2/4 pint of her own ice-cream, so Molly ate it. How much ice-cream did Molly eat? Pint
Answer:
3/4 a pint
Step-by-step explanation:
1/4 + 2/4 = 3/4
Is this correct?????
Answer:
yes
Step-by-step explanation:
I need help please!!!!
Answer:
y = x + 3
Step-by-step explanation:
Doreen bought 2 liters of lemonade. How many millimeters of lemonade did Doreen buy?
Answer:
2000 milliliters, because 1 liter equals 1000 milliliters, so 2 equals 2000! hope this helped!
You want to frost a 13 in. by 9 in. cake that you just baked when you notice your little brother ate a piece right out of the middle. What area of cake is left to be frosted if he ate a 2 in. by 2 in. piece? no links pls :) thanks will give brainliest
Answer:
113 inches
Step-by-step explanation:
13 times 9 is 117 inches (this is the area for the whole cake)
2 times 2 is 4 (this is just the middle)
But since the brother ate the middle you will have to subtract the area of the middle piece from the whole area.
117-4 is 113 so the area now is 113 inches
Can you help me figure it out? What is the side length of side AE?
Answer:
18
Step-by-step explanation:
maybe i dont really know
Find the volume of the cone. 10 in 20 in
Answer:
its 47
Step-by-step explanation:
so you add a number and then you subtract and then you divide and yiu get 4657848
Tea bags are sold in three sizes of box. A small box of 50 tea bags costs £2.15 A medium box of 80 tea bags costs £3.29 A large box of 125 tea bags costs £5.17 Which size of box is the best value for money?
Answer:
medium box
Step-by-step explanation:
The computation is shown below:
For small box,
= £2.15 ÷ 50
= £0.043
For medium box
= £3.29 ÷ 80
= £0.041125
And, for large box
= £5.17 ÷ 125
= 0.04136
So as per the above calculation the medium box should represent the best value for the money
Find M<1, M<2, M<3, M<4, M<5
Answer:
Step-by-step explanation:
m∠2 = 52° [Alternate interior angles]
m∠1 + m∠2 = 180° [Linear pair of angles are supplementary]
m∠1 = 180° - 52°
m∠1 = 128°
m∠3 = 47° [Alternate interior angles]
m∠5 + 52° + 47° = 180° [Sum of linear angles is 180°]
m∠5 = 180° - 99°
= 81°
m∠4 + 47° = 180° [Sum of consecutive interior angles is 180°]
m∠4 = 180° - 47°
m∠4 = 137°
What is the value of x?
Enter your answer in the box.
x =
PLEASE ANSWER I WILL MARK BRAINLIEST FOR CORRECT ANSWER!
Answer:
Step-by-step explanation:
(x+1)/58.8=35/49
x+1=58.8(35)/49
x+1=42
x=41cm
Answer:
41 cm
Reason its 41cm, just answered this
Write the equation in standard form for the circle x2+y2–49=0.
Answer:
2x+2y=49
Step-by-step explanation:
tell me if this is wrong
What Is 2x5+4 Im kinda confused
What is the positive solution to this equation?
4x2 + 12 x= 135
HELPPP MEEE ASAP PLEASE HELP
Answer:
look up how to find the area if a kite thats what i do
Step-by-step explanation:
Can someone give me the correct answer to this question.
I will mark you brainliest for the correct answer.
The answer choices are at the bottom of the pick.
This is a big test.
Please help!!!
Answer:
Step-by-step explanation:
Supplementary
180-112= 68
alternate exterior
112
Answer:
∡4 and ∡3 are supplementary
∡3 = 68°
∡5 is an alternate-exterior to ∡4
∡5 = 112°
Step-by-step explanation:
which set of sides will NOT make a triangle?
19cm 14cm 7cm
11cm 13cm 3cm
12cm 7cm 5cm
2cm 3cm 4cm
Answer:
12cm 7cm 5cm
Step-by-step explanation:
Since 7 + 5 is = 12, it cannot be a side of a triangle. If you add any 2 numbers, the sum must be greater than the 3rd one.
find the area of the regular polygon
Answer:
i would recamend useing a ruler to help?
Step-by-step explanation:
mark me brainlyest i really need it
Help me ASAP!!!!!!!!!
See picture attached.
Good Luck
xsd
Step-bddy-step explanatison:
xddAnswer:ddsd
-1 = d/4
solve the equation.
Answer:
d = -4
Step-by-step explanation:
Multiple both sides by 4 to get rid of the fraction
Answer:
d = - 4
Step-by-step explanation:
Given
- 1 = [tex]\frac{d}{4}[/tex] ( multiply both sides by 4 to clear the fraction )
- 4 = d
What is the radius of 18 circle?
What is the unit rate for how many insects a praying mantis eats in one day?
Answer:
It's 7
Step-by-step explanation:
49 insects per week means that they eat 7 insects per day, 49 divided by 7 = 7.
a coin is tossed and a dice is rolled. What is the probability of getting tails with rolling a 2?
Answer:
50% for the coin and 1/6 chance for the dice
Two number cubes are rolled.
What is the probability that the first lands on an odd number and the second lands on an even number?
Enter you answer, as a fraction in simplified form, in the box
Answer:
1/4
Step-by-step explanation:
Assuming the number cube is a six-faced die, you have
1 2 3 4 5 6
three odd numbers, and three even numbers. Therefore, the chance of it landing on an odd number or even number is 3/6, which equals 1/2. That means you have a 50% chance to get an odd number, or an even number.
So, you have two die. Both have a 50/50 chance of getting an even or odd number. So what's the chance of one landing on an odd number, and the other landing on an even number?
You would have a 25% chance for an even and then an even numberYou would have a 25% chance for an odd and then an odd numberYou would have a 25% chance for an even and then an odd numberYou would have a 25% chance for an odd and then an even number.25% as a simplified fraction is 1/4. Therefore, 1/4 is your answer.
Answer:
1/4
Step-by-step explanation: