Answer:
johnns height 4cm to Robin's height
The ratio of John's height to Robin's height is 20:19.
To find the ratio of John's height to Robin's height, we need to convert their heights to the same unit of measurement. Let's convert Robin's height from centimeters to meters:
Robin's height = 156 cm = 156/100 m = 1.56 m
Now that both heights are in meters, we can calculate the ratio:
John's height: Robin's height = 1.6 m : 1.56 m
To simplify the ratio, we can divide both heights by the same value:
1.6 m : 1.56 m = (1.6/0.08) m : (1.56/0.08) m = 20 : 19
Therefore, the ratio of John's height to Robin's height is 20:19.
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Complete each sentence.
The relation (0, 0), (1, 1), (2,4),(3,9) represents a function because
5.
The relation (-4,4).(-2,2),(0,0).(-2,-2) does not represent a function because if you answer than I will mark you brainless
6.
The relation (-8,4),(-3,1),(2, 2). 7. -5).
a function because
Determine whether acharnhronnant
Answer:
1 is 20
Step-by-step explanation:
Subtract 2x/ x^2 -9 - 5/ x^2 - x - 12
Answer:
Let's do an example first and then summerize what are the techniques to complete the square for quadratic equation in order to solve for x. -2x^2 + 5x + 12 = 0 -2x^2 + 5x = -12 -2 (x^2 - 5/2 x) = -12 so 2ab = 5/2 x ("2ab" refers to the formula (a+b)^2 = a^2 + 2ab + b^2 or (a+b)^2 = a^2 - 2ab + b^2 ) Since a=1 (because x^2 is the a^2 in the formula), we get 2*1*b = 2b = 5/2 x, so b = 5/4 That means to complete the square we will add "b^2" (which is (5/4)^2 here) and then subtract (5/4)^2 in the parenthesis: -2 [ x^2 - 5/2 x + (5/4)^2 - (5/4)^2 ] = -12 Now that is same as -2 (x - 5/4 )^2 + (-2) * (-5/4)^2 = -12 To simplify it we follow these steps: -2 (x - 5/4 )^2 + 2 * 25/16 = -12 -2 (x - 5/4 )^2 + 25/8 = -12 Multiply both sides of the equation by 8 we get this: -16 (x-5/4)^2 +25 = -96 then -16 (x-5/4)^2 = -121 Techniques summerization: To complete the square for quadratic equation in order to solve for x, first we need to move the terms without x (which is "c" in the "ax^2+bx+c=0" form) to the right side of the equation. Then we divide both sides of the equation by "a" in the "ax^2+bx+c=0" equation. Through the formula (a+b)^2 = a^2 + 2ab + b^2 or (a+b)^2 = a^2 - 2ab + b^2 we will then figure out the value of "b", so then we know what is the b^2 we need to add then subtract. Finally just simplify the equation. Hope this helps.
Step-by-step explanation:
please answer correctly asap to get brainleist! :/
Answer:
a
Step-by-step explanation:
a can not be -9,-8,8,0 or -2, therefore, it is 7
Solve the following problem: 892 ÷ 4 = ? *
\
Answer:
223
Step-by-step explanation:
hope it helps!!!!......
Answer:
223
Step-by-step explanation:
892 ÷ 4 = 223
Can i get brainliest? plz!
Angela enjoys swimming and often swims at a steady pace to burn calories. At this pace, Angela can swim 1,700 meters in 40 minutes.
A.What is Angela's Unit rate
B.What is the unit rate
Answer:
1700 divided by 40 and that would be 42.5 so she does 42 1/2 meters a minute.
Write the equation of the line passing through the points (0,-1) And (3,7)
Answer:
[tex]\frac{3}{8}[/tex]
Step-by-step explanation:
[tex]M=\frac{x2-x1}{y2-y1}[/tex]
[tex]M=\frac{3-0}{7-(-1)}[/tex]
[tex]M=\frac{3}{8}[/tex]
I need answer ASAP I’m next 10 mins
Answer:
B
Step-by-step explanation:
First simplify the first term to get
10y^4
then multiply 10y^4 by 4 square root 6y^3
40y would be all you needed to get answer
Answer:
40y^5√6y (B)
Step-by-step explanation:
Let's multiply 2√25y^8 * 4√6y^3:
8√150y^11 (When you multiply exponents with the same base, you can just add the exponents and keep the same base:
Ex. 4^5 * 4^9 = 4^14)
Let's simplify 8√150y^11
√150 = 5√6
√y^11 = y^5√y
So our final answer would be:
40y^5√6y
WILL GIVE BRAINLIEST!!!!!!!!!
1. Use at least 2-3 sentences to explain how to find the measure of exterior angle of a triangle if you know the two remote interior angles.
2.Use at least 2-3 sentences to explain how to find the measure of an interior angle of a triangle when you are given the other two angle measures.
Answer:
Step-by-step explanation:
1). By definition of an exterior angle of a triangle,
Measure of exterior angle of a triangle is equal to the sum of opposite two interior angles.
From the figure attached,
m∠4 = m∠1 + m∠2
2). Property of a triangle states that " sum of interior angles of a triangle is 180°"
Therefore, m∠1 + m∠2 + m∠3 = 180°
A tank contains 80 gallons of water and is getting filled at rate of 3 gallons per minute. How many gallons of water will be in the tank after 4 minutes. Explain your answer
Answer:
Step-by-step explanation: 92 gallons bc if u calc the rate on 3 gallons per minute, times 4 which gives 12, add that to the 80 gallons alr filled then boom. 92.
Please help will brainlist
Answer:
4 is C for sure!
Step-by-step explanation:
please help! with explanation and steps!
Answer:
p = 4,8 ; r = 7,5 ; q = 4,5
Step-by-step explanation:
according to Thales's theorem, we have:
[tex]\frac{3}{p}=\frac{5}{5+3}=\frac{5}{8}=> p= 3:\frac{5}{8}=4,8[/tex]
and: [tex]\frac{5}{8}=\frac{r}{12}=> r=7,5\\\\\frac{5}{3}=\frac{7,5}{q}=> q=4,5[/tex]
Please someone help!
Find ∛-27
Answer:
∛-27 or -3
Step-by-step explanation:
I don't think you can do anything further to this problem unless we have to solve for something.
If it is 3 square root of the whole thing, then the answer is -3 because
-3 x -3 x -3 = -27
-3 x -3 = negative x negative = positive = 9
9 x -3 = positive x negative = negative = -27
Hope this helps!
Devaughn is 13 years younger than Sydney. The sum of their ages is 79 . What is Sydney's age?
Answer: 46 years old
Step-by-step explanation: If Devaughn is 13 years younger than Sydney,
we can represent Sydney's age as x and Devaughn's age as x - 13.
Since the sum of their ages is 79, we have x + x - 13 = 79.
This simplifies to 2x = 92.
Dividing both sides by 2, we have x = 46.
So sydney is 46 years old.
The fuel for a chain saw is a mix of oil and gasoline. The ratio of ounces of oil to gallons of gasoline is 7:19. There are 38 gallons of gasoline. How many ounces of oil are there? Group of answer choices
Answer:
14
Step-by-step explanation:
Let y represent the ounces of oil present
7/19 = y/38
19 y= 7×38
19y= 266
y= 266/19
= 14
Hence there are 14 ounce of oil present
If a toy rocket is launched vertically upward from the ground level with an initial velocity of 128 feet per second, then its height h after t seconds is given by the equation:
h(t) = -16t^2 + 128t
What is the maximum height the rocket reaches?
Answer:
The maximum height of the rocket is 256 feet
Step-by-step explanation:
The vertex form of the quadratic function f(x) = ax² + bx + c is
f(x) = a(x - h)² + k, where
(h, k) is the vertex pointh = [tex]\frac{-b}{2a}[/tex] and k = f(h)(h, k) is a minimum point if a > 0 and a maximum point if a < 0Let us use these rules to solve the question
∵ h(t) = -16t² + 128t
→ Compare it by the form of the quadratic function above
∴ a = -16 and b = 128
∵ a < 0
∴ The vertex (h, k) is a maximum point
∴ The maximum height of the rocket is the value of k
→ Use the rule of h above to find it
∵ h = [tex]\frac{-128}{2(-16)}[/tex] = [tex]\frac{-128}{-32}[/tex]
∴ h = 4
→ Substitute x in the equation by the value of h to find k
∵ k = h(h)
∴ k = -16(4)² + 128(4)
∴ k = -256 + 512
∴ K = 256
∴ The maximum height of the rocket is 256 feet
The parabola y = 3(x + 1)^2 + 3 has a vertex of
Answer:
( 1, -3)
Step-by-step explanation:
[tex]y=a(x-h)^2+k[/tex]
The vertex is at (h,k). For "h", swap the negative to positive and positive to negative.
So the vertex is (-1,3)
(9,-8) and (9,6) and determine the equation of the line.
Answer:
The answer is undefined.
Step-by-step explanation:
The x will never change, no matter what the y is, so the answer will always be undefined.
Which expressions represent this model? Check all that apply. 4 + 5 4(5) 20 5(4) 05(5
Answer:
4(5), 20, and 5(4)
Step-by-step explanation:
i just did it! have an amazing day
What is an equation of the line that passes through the points (2,5) and
(8,2)? Put your answer in fully reduced form.
State the slope and Y intercept of this problem X =1
Answer:
not for sure sorry
Step-by-step explanation:
sorry
iv) a) 4x 10² solve it in decimal
40.0*10 is the answer
actually it is 400 but u want in decimal so it is 40.0*10
Answer:
40.0*10
Step-by-step explanation:
have a good day!
What is the constant of variation, k, for the table?
What is 6 1/4 divided by 2
Answer:
3 1/8
Step-by-step explanation:
6 1/4 ÷ 2
~Turn each number into an improper fraction
25/4 ÷ 2/1
~Copy Dot Flip
25/4 * 1/2
~Multiply
25/8 or 3 1/8
Best of Luck!
When the mixed number i.e. [tex]6\frac{1}{4}[/tex] is divided by 2 so the answer is [tex]3 \frac{1}{8}[/tex]
Given that,
The mixed number is [tex]6\frac{1}{4}[/tex].And, the other number is 2.We need to do the division.Based on the above information, the calculation is as follows:
[tex]= 6\frac{1}{4} \div 2\\\\= \frac{25}{4} \div 2\\\\= \frac{25}{4} \times \frac{1}{2} \\\\= \frac{25}{8}\\\\= 3 \frac{1}{8}[/tex]
Therefore we can conclude that when the mixed number i.e. [tex]6\frac{1}{4}[/tex] is divided by 2 so the answer is [tex]3 \frac{1}{8}[/tex]
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Solve the proportion below. X/12=12/72
Answer:
x=2
Step-by-step explanation:
2/12 is equal to 12/72
Answer:
its 2
Step-by-step explanation:
What single decimal multiplier would you use to decrease by 7% followed by a 20% decrease?
Answer:
13 percent
Step-by-step explanation:
Single decimal multiplier used to decrease by 7% followed by a 20% decrease is 0.744.
What is decimal multiplier?A percentage multiplier is a number which is used to calculate a percentage of an amount or used to increase or decrease an amount by a percentage. In order to use a percentage multiplier to calculate the percentage of an amount, convert the percentage to a decimal by dividing by 100 ; this is the decimal multiplier.
Given,
First decrease = 7%
Second decrease = 20%
Let a number be x.
If x is decreased by 7% then the value of the number is
( (100 - 7) / 100) × x = 0.93 x
Again if 0.93 x is decreased by 20% then the value of the number ((100 - 20) /100) × 0.93 x = 0.744 x
Hence, The single decimal multiplier is 0.744.
Learn more about decimal multiplier here:
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Given A=58 degrees, C= 42 degrees, and b=11. Find a. Round to the nearest tenth.
Answer - A=58 degrees round to the nearest tenth is 60 degrees.
Hope this helps
At the Denver zoo,adult admission is 15$ and children’s admission is 9$. A group of 12 people go to the zoo. Their total admission was $150.
A) Set up a system of equations to model this situation.
B) How many adults and how many children were in the group. Using an appropriate method.
Answer:
What is the question? Please explain further and I will help answer in the comment.
Step-by-step explanation:
solve for h 17 + 4h + 2 = 1 − 5h
Answer:
h= -2
Step-by-step explanation:
Move the terms,
19 + 4h = 1 -5h
Combine like terms,
4h+5h=1-19
Divide both sides...
9h= -18
-18/9 = -2
Answer:
h=-2
Step-by-step explanation:
17+4h+2=1-5h
19+4h=1-5h
-1 -1
18+4h=-5h
-4h -4h
18=-9h
18/-9=-9h/-9
h=-2
hopefully this helps :)
Which of the following mixtures will have a stronger coffee flavor? explain please thank you!!
A) Mixture B
B) Mixture A
C) Both the mixtures are equally strong.
y= 2x-4
6r - 3y = 12
