calculate the estimate of the mean height of the students in cm and explain your answer
Step-by-step explanation:
we find the average height of each height first,
t¹= (120+124)/2
=244/2
=122
t²= (124+128)/2
t²= 252/2
t²= 126
t³= (128+132)/2
t³= 260/2
t³= 130
t⁴= (132+136)/2
t⁴= 268/2
t⁴ =134
t⁵= (136+140)/2
t⁵= 276/2
t⁵= 138
so multiplying each height by its frequency we can find the total height, so we have..
total height= (122*7)+(126*8)+(130*13)+(134*9)+(138*3)
= 854+1008+1690+1206+414
= 5172
mean height = total height/total frequency
= 5172/40
=129.3
What's 1.625 rounded to the nearest hundreth
Answer:
1.63
Step-by-step explanation:
hope this helps :3
if it did pls mark brainliest
Determine the domain and the range for this relationship.
Drag the tiles to the correct locations on the image. Not all tiles will be used.
(Several can be placed in one section, but not all of them will be placed.)
A. 0 ≤ x ≤ 6
B. 0 ≤ x ≤ 72
C. {0, 12, 24, 36, 48, 60, 72}
D. {0, 1, 2, 3, 4, 5, 6}
E. {0, 1, 2, 3, 4, 5, 6}
F. 0 ≤ y ≤ 72
G.{0, 6, 12, 18, 24, 30}
H. 0 ≤ y ≤ 6
Answer:
how are we supposed to know the answer if we don't know the problem?
Step-by-step explanation:
It makes no sense
Ronnie made 5 pies for New Year's Day. Some of his family members are allergic to gluten, so he bought gluten-free flour for all of the pies. For each piecrust, he used 2 cups of flour. Health Mart sold bags with 4 cups of gluten-free flour for $12. How much did Ronnie spend on the gluten-free flour so that he had enough for the crusts?
Answer:
He spent $24 dollars
Step-by-step explanation:
Each of the piecrusts had 2 cup of flour he has 5 pies so all pies altogether equally 10 cups so he buys 2 bags for $24 dollars
Step-by-step explanation:
Number of gluten-free flour used for 5 pies= 2×5= 10 cups
cost of 4 cups of gluten-free flour = $12
cost of 1 cup = 12/4 = $3
Then,
cost of 10 cups of gluten-free flour = 3×10
= $30
Determine the equation of the line described. Put answer in the slope-intercept form, if possible.
4) Through (-3,1), perpendicular to -3x - 7y = 2
A) y=7/8x
B) y = 3/7x + 24
C) y=-7/3x-8
D) y=7/3x+8
ILL MARK U BRAINLIEST!!
One out of four girls favorite color is red, and three out of four girls favorite color is pink. If there were 500 girls , how many of them favorite color would be red?
Answer:
125
Step-by-step explanation:
1/4 of 500 (the total number of girls) is 125.
HTH :)
Pre-calc. I need help NOW
SHORT ANSWER Why is this table not a function? Explain your reason. Answer in complete sentences.
Answer:
one input is going to two different out puts it also fails the vertical line test
Answer:
because there is no association between each dot on the scatter plot pls mark brainliest
Step-by-step explanation:
PLEASEEEEE HELPPP!!!
HL
AAS
ASA
SSS
SAS
Unknown
Holly stops to drink 5 ounces of water every two miles she
runs. The further that Holly runs, the more she drinks water.
Complete the table by writing two equivalent ratios
Answer:
the amount of water she drinks is x, the mileage is y:
x y
2 miles 5 oz
4 miles 10 oz
6 miles 15 oz
the ratios would be 4/10 and 6/15
Step-by-step explanation:
for every 2 miles Holly runs, she drinks 5 oz of water, right? the ratio is 5:2, so if you were to come up with other numbers that match the ratio, they have to be divisible by the parts of the ratio. so if she runs 2 miles, she drinks 5 oz. if she runs 4 miles, then she drinks 10 oz.
think of a ratio like a fraction (in this case it would be 2/5). if you were to make equivalent ratios, then the two fractions would have to be equal, right? well, when you simplify all of the numbers listed in the table above after making them into fractions, they would all go back to 2/5, so the numbers i came up with above are equivalent ratios, meaning they have the same value when simplified.
hopefully that helps and isn't too confusing! if you need other help, let me know! :)
HELP MATH EXPERTS ! Points 15 !!.
Answer:
its B
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
it's quite simple actually. It's so simple I don't know how to explain.
Need help fast!! Please help
Answer:
I am pretty sure it is 10.5
Step-by-step explanation:
Answer:
10.5
Step-by-step explanation:
your equation: DT = DH + HT
HT = 2DH
so now your equation is DT = DH + 2DH
plug in your values: 3.5 + 2(3.5)
you get DH = 10.5
Look at the number line below. b fa and b are equal distances from 0, which of the following is true?
A a+b=0
B. a/b=1
C. a-b=0
D. ab = 1
Answer:
a
Step-by-step explanation:
How do you write the fraction-3/4 into a decimal
Answer:
-0.75
Step-by-step explanation:
Hope that helps you have a great day!
Write a recursive rule for the sequence –17.-11, -5, 1, ...
show complete working format please
Answer:
[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] + 6
Step-by-step explanation:
There is a common difference d between consecutive terms, that is
- 11 - (- 17) = - 5 - (- 11) = 1 - (- 5) = 6
A recursive rule allows a term to be found by adding d to the previous term, thus
[tex]a_{n}[/tex] = [tex]a_{n-1}[/tex] + 6 with a₁ = - 17
Find the measure of x
Answer:
Wdym
Step-by-step explanation:
SUPER EASY, WILL GIVE BRAINLIEST
What’s the domain of quadratic functions?
Answer:
1st option!!
Good Luck!!!
Answer:
[0,∞)
I hope this is good enough:
The product of 17 x .67 is ?
Answer:
11.39
Step-by-step explanation:
Have a great day! :)
Write addition sentences (expression) where the sum is
zero.
The price of n tickets to a concert is is 9n + 6 dollars. What is the cost, in dollars, for 8 tickets to the play?
The cost for 8 tickets to the play is
Answer:
78
Step-by-step explanation:
do 9x8= 72
then 72+6=78
answer pls thank you
Answer:
10 x 11 to the 10th power
Step-by-step explanation
Pls help I’m begging
Answer:
3:1 and 15:5
Step-by-step explanation:
Not too sure
please help me thanks
Answer: I think its Consine
Step-by-step explanation:
Trisha’s parents bought a new house that has 2,255 square feet.
The price per square foot was $98. How much did they pay for the house? Enter your answer in the box.
Answer:$220,290
Step-by-step explanation:
2,255 multiplied by 98 is 220,290
The total cost of Trisha’s parents new house is $220990.
Given that, Trisha’s parents bought a new house that has 2,255 square feet.
What is the unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
The price per square foot was $98.
So, the total cost of house = Number of square feet × The price per square foot
= 2,255 × 98
= $220990
Therefore, the total cost of Trisha’s parents new house is $220990.
To learn more about the unitary method visit:
brainly.com/question/22056199.
#SPJ2
how do you do this? plz help me with math!
Answer:
it's x=50 hope this helps
Answer:
[tex]\frac{50}{5}[/tex] is the answer
Step-by-step explanation:
you would times 10 by 5 and you have your answer
Explain how you determine the sign of your answer when you raise a negative base to a power.
Answer:
If the power is even number sign will be positive.
If the power is odd number sign will be negative.
Example:
-2² = -2 * -2 = 4
-2³ = -2 * -2 * -2 = 4 * -2 = -8
Find the value of x.
What is the solution to the equation 5(x-3) = 2(x+3)?
Rotate the image 180° about the origin. Give the new coordinates of the image.
Answer:
2 my nigher
Step-by-step explanation:
Given h(x) = 4(x + 5) - 7
Find h(7)