Answer:
7/8
Step-by-step explanation:
.25x3.5=.875
Answer: 7/8 I hope this helps
Step-by-step explanation:
3 1/2
1 3/4
7/8
A pack of six cans of coffee cost $12. How much would 15 cans of
coffee cost?
Answer:
30$ for a pack of 15
Step-by-step explanation:
12$ ÷ 6 to get the price for 1 can, then use that to multiply by 15 to get how much 15 cans cost.
Write an equation of the line that passes through a pair of points: (-4, -3), (-3, 1)
a. y = 4x -13)
b. y = -4× 13)
c. y = 4x +13)
d. y = 4x -1/13
Answer:
C. y=4x+13
Step-by-step explanation:
To solve this equation first find the slope. Do this by using the slope formula, m=[tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex], so plug in the points[tex]\frac{1+3}{-3+4}[/tex] which equals 4/1 or 4. Since now we know the slope is 4 we can put the equation into slope-point form, I will be using (-4,-3) for this equation. y+3=4(x+4), then solve for y. After solving you get y=4x+13.
In right triangle ABC, ZCis a right angle and sin A= sin B. What is mZA
Answer:
∠A = 45°
Step-by-step explanation:
It is given that,
sin A = sin B
∠C is a right angle.
If sin A = sin B, it means
sin 45 = sin 45 = [tex]\dfrac{1}{\sqrt2}[/tex]
It means that angle A and angle B is 45 degrees.
Three sisters purchased treats at a bake sale. The oldest sister spent $2.70 on brownies. The middle sister spent four times as much on cookies as the older sister spent on brownies. The youngest sister spent $3.68 less on a cake than the middle sister spent on cookies. How much did each sister spend?
Answer:
the oldest sister spent 2.70$ (given)
the middle sister spent 10.80$
and the youngest sister spent 7.12$
Step-by-step explanation:
George has 28 tomato seedlings. He wants to put them into 7 equal groups to sell. Which number sentence could be used to find the number of seedlings in each group
Answer:
4
Step-by-step explanation:
7+7+7+7 or 28/7 =4
Determine the slope 2,-4 and 2,6
Answer:
there isn't a slope, if you're talking about
(2,-4) and (2,6), since
using the vertical line test.....
it's not even a function
so it doesn't have a slope
Step-by-step explanation:
which of the following circles have their centers on the y-axis check all that apply
Simplify. Express the answers using positive exponents
Answer:
C
Step-by-step explanation:
The simplified expression of the given expression -5[tex]w^2y^{-2[/tex] / -15[tex]w^{-6}y^2[/tex] is [tex]w^{16[/tex].
The expression -5[tex]w^2y^{-2[/tex] / -15[tex]w^{-6}y^2[/tex] can be simplified as follows:
= -5 * [tex]w^{2 - (-6)[/tex] * [tex]y^{-2 - 2[/tex] / -15 * [tex]w^{-6 - 2[/tex] * [tex]y^{2 - (-2)[/tex]
= -5 * [tex]w^8[/tex] * [tex]y^{-4[/tex] / -15 * [tex]w^{-8[/tex] * [tex]y^4[/tex]
= (-5 / -15) * ([tex]w^8[/tex] / [tex]w^{-8[/tex]) * ([tex]y^{-4[/tex] / [tex]y^4[/tex])
= 1 * [tex]w^{16[/tex] * [tex]y^0[/tex]
= [tex]w^{16[/tex]
Therefore, the simplified expression is w^16.
Here is a breakdown of the steps involved in the simplification:
The powers of w and y are combined using the distributive property of exponents.
The negative exponents are changed to positive exponents by dividing by the same base raised to the power of the negative exponent.
The factors of 5 and 15 are simplified.
The common factors of w and y are simplified.
To learn more about expression here:
https://brainly.com/question/12909556
#SPJ2
a
100 cm²
b
9 cm²
c
225 cm²
d
28.26 cm²
Answer:
28.26 cm^2
Step-by-step explanation:
A = (pi)r^2
A = 3.14 * (3 cm)^2
A = 3.14 * 9 cm^2
A = 28.26 cm^2
which statement is true when parallel lines are cut by transversal?
Answer:
If two parallel lines are cut by a transversal, then the alternate interior angles formed are congruent . When two lines are cut by a transversal, the pairs of angles on either side of the transversal and outside the two lines are called the alternate exterior angles .
Step-by-step explanation:
The time period, T, of a simple pendulum is directly proportional to the square root of the length, d, of the pendulum.
When d=6, T=5
Find the value of T when d=3
Input note: give your answer correct to 2 decimal place.
Step-by-step explanation:
T = k * sqrt(d), where k is a real constant.
When d = 6, T = 5.
k = T / sqrt(d) = 5 / sqrt6.
Therefore when d = 3, T = (5 / sqrt6) * sqrt3 = 3.53.
Which polynomial function has a leading coefficient of3 and roots -4, i, and 2, all with multiplicity 1?
Answer:
Step-by-step explanation:
f(x) = 3(x + 4)(x – i)(x + i)(x – 2)
an art collector bought 20 paintings at an art fair, and wants to know the average price of the paintings ahe purchased at the fair. She adds the prices of all the paintingsand dividesthis number by 20 to find an average price of $3550. Is this price a sample mean or a population mean, and which symbol would be used to donate it?
Answer:
The calculated mean price is a sample mean and it is denoted by x.
Step-by-step explanation:
Given that
Mean price of paintings = $3550
Number of paintings = 20
In order to decide whether it is a population mean or a sample mean we have to understand the terms first.
Population:
Population is the overall collection from which a sample or observations are taken.
Sample:
The small or less number of observations that we take from a large population to perform data analysis is called sample.
In the given scenario, all the paintings at the art fair are population while the number of paintings that the art collector bought is a sample.
Hence,
The calculated mean price is a sample mean and it is denoted by x.
Please help I am stuck. Would you also please explain on how to solve?
Answer:
<D is correct its confusing on the solving but
Step-by-step explanation:
HELPPPPPPPPPPP PLEASEEEEEEE!!!!!!!!
calculate the maximum of ( 68 x 42) / 120 to the nearest whole number
(write your answer correct to 2 d.p)
Answer:
23.8 will be it's answer
One quarter has a mass of 5.67 grams. Which is the mass of two rolls of quarters each containing 40 quarters?
9514 1404 393
Answer:
453.6 g
Step-by-step explanation:
The mass of 80 quarters will be 80 times the mass of 1 quarter:
80 × 5.67 g = 453.6 g
The mass of two rolls of quarters is 453.6 grams.
_____
Additional comment
That's about 1.0000 pounds.
Find the solution of 5/2x - 7 = 3/4x + 14
What is equal to x?
Answer:
Ameliorate retort, pertaining to preceding albeit contingent interrogate proximates subject to x = 12.
Step-by-step explanation:
Availing, exploiting, albeit maneuvering the Mathematic convention, Order of Operations (OO), the contiguous albeit proximate equation may ascertain as the preeminent imminent:
Groups: Not identified.
Exponents: Not identified, disparaging ₁.
Multiplication: Derived, pertaining to subtraction, 4 · (7/4x) = 4 · 21 7x = 84
Division: Derived, pertaining to multiplication, 7x = 84 ⇒ x = 12
Addition: Aggregate constants ⇒ 5/2x = 3/4x +21
Subtraction: Abate algebraic groups ⇒ 7/4x = 21
2 1/3 X 4 1/5 find the product
Answer:
9 4/5
Step-by-step explanation:
I hope that helps! :)
Just tell me if these soccer balls show a reflection. Its for a math assignment i just need to know if this shows a reflection
Answer: Yes
Step-by-step explanation:
Answer:
yesh it does :>
Step-by-step explanation:
To the nearest hundredth, how many kilometers are equal to 5 miles?I’ll mark brainliest!
Answer:
8.04
Step-by-step explanation:
Please help will give brainliest
Answer:
I'm not completely sure but i'm going to guess on D the domain is 1 < f < 7, the range is 24 < c(f) < 168
Step-by-step explanation:
because 1 cup is < to a cup of Flour (f), and the expression says 7 cups in total so i f is less than or equal to the total number of cups 7. then the range says c(f)=24(f), meaning you get 24 cookies for the input amount "f" of cups of flour. So the range would be 24 is grater of equal to the c(f)which in total (7 x 24) is equal to 168
A company announces that it will be giving 15% of its profits to charity. If the company profits $32,000, how much money will it give to charity?
Answer:
$4,800
Step-by-step explanation:
15% of $32,000
15% × 32000
0.15 × 32000 = $4,800
15% of $32,000 is $4,800 which will go to charity :)
What type of counting problem is this? Tatiana has a special puzzle in which all of the pieces fit together in any way. There is no goal picture. Instead, the
goal of the puzzle is to make different patterns and pictures using the pieces. If Tatiana has 50 unique puzzle pieces and she plans to use all of them, how
many possible pictures can she create?
a.Permutation without repetition
b.Combination without repetition
c.Permutation with repetition
d.Combination with repetition
Answer:
It is permutation without repetition. I just took the quiz. This is a permutation because different orderings of the pieces produce different pictures. Repetition is not allowed because there are a limited number of puzzle pieces.
Step-by-step explanation:
Answer:
Permutation without repetition
Step-by-step explanation:
This is a permutation because different orderings of the pieces produce different pictures. Repetition is not allowed because there are a limited number of puzzle pieces.
The five number summary given below represents the cost of groceries per week in different parts of the country.
Min Q1 Median Q3 Max
7 72 79 86 123
Using the interquartile range, which of the following are outliers?
a. 7
b. 36
c. 58
d. 94
e. 123
Answer: 7 ; 26 ; 123
Step-by-step explanation:
Min __Q1 __ Median ___ Q3 __ Max
7____ 72 ____79 ______86__ 123
Given the 5 number summary information :
The Outlier :
Lower bound : Q1 - (1.5 * IQR)
Upper bound : Q3 + (1.5 * IQR
IQR = Q3 - Q1 = (86 - 72) = 14
Lower = 72 - (1.5 * 14)
Lower boundary = 51
Upper boundary = 86 + (1.5 * 14)
Upper boundary = 86 + 21 = 107
Values below 51 and values greater Than 107 are outliers.
Hence, 7, 36 and 123 are outliers
Mai earns $7 per hour mowing her neighbors' lawns. She also earned $14 for hauling away bags of recyclables for some neighbors. Priya babysits her neighbor's children. The table shows the amount of money m she earns in h hours. Priya and Mai have agreed to go to the movies the weekend after they have earned the same amount of money for the same number of work hours.
Answer:
Each has to work 5 hours and earn $42
Step-by-step explanation:
Let m and h represent hours Nai spends mowing and hauling, respectively. Then (m+h) will be the number of hours Priya spends babysitting. In order for their earnings to be equal, we must have ...
7m +14h = 8.40(m+h)
5.60h = 1.40m . . . . . . . . subtract 7m+8.40h
m = 4h . . . . . . . . . . . . . . divide by 1.40
Then the total number of hours worked by either person is ...
m + h = (4h) +h = 5h
If only whole numbers of hours are worked, then the smallest number of hours that will make earnings equal is 5h, with h=1, or 5 hours. In that time, each will earn 5×$8.40 = $42.
Each must work 5 hours and earn $42 before they go to the movies.
__
Nai will work 4 hours mowing and 1 hour hauling.
Each must work 5 hours and earn $42 before they go to the movies. Mai will work 4 hours mowing and 1 hour hauling.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
Let m and h represent hours Mai spends mowing and hauling, respectively. Then (m+h) will be the number of hours Priya spends babysitting.
In order for their earnings to be equal, we must have
7m +14h = 8.40(m+h)
subtract 7m+8.40h
5.60h = 1.40m
Divide by 1.40
m = 4h
Then the total number of hours worked by either person
m + h = (4h) +h = 5h
If only whole numbers of hours are worked, then the smallest number of hours that will make earnings equal is 5h, with h=1, or 5 hours. In that time, each will earn 5×$8.40 = $42.
Hence, Each must work 5 hours and earn $42 before they go to the movies. Mai will work 4 hours mowing and 1 hour hauling.
To learn more on Equation:
https://brainly.com/question/10413253
#SPJ2
Please help meeee!!!!!
I attached it !!!!!!!!!!!!!!
Answer:
2/3
Step-by-step explanation:
66.66 percent is closest to the fraction 2/3.
What value of x makes the equation 4(5-7x)=6-12x
Sherry has read 56 pages of a book. Her teacher wants her to read to at least page 200 by Monday. How many pages must Sherry average reading each of the next six days to satisfy her teacher's request?
Answer: 43
Step-by-step explanation:
because i know
A population of insects increases at the rate of 200 10t 13t2 what is the change in the population of insects between day 0 and day 3
Answer:
762 days
Step-by-step explanation:
Given
[tex]Rate = 200 + 10t + 13t^2[/tex]
Let the rate be R.
So the rate change with time is represented as:
[tex]\frac{dR}{dt} = 200 +10t + 13t^2[/tex]
So:
[tex]dR = (200 + 10t + 13t^2)\ dt[/tex]
To get the number of insects between day 0 and day 3, we need to integrate dR and set the bounds to 0 and 3
i.e.
[tex]dR = (200 + 10t + 13t^2)\ dt[/tex] becomes
[tex]\int\limits^3_0 {dR} \, =\int\limits^3_0 (200 + 10t + 13t^2)\ dt[/tex]
[tex]R =\int\limits^3_0 (200 + 10t + 13t^2)\ dt[/tex]
Integrate
[tex]R = 200t + \frac{10t^2}{2} + \frac{13t^3}{3} [3,0][/tex]
Solve for R by substituting 0 and 3 for t
[tex]R = (200*3 + \frac{10*3^2}{2} + \frac{13*3^3}{3}) - ( 200*0 + \frac{10*0^2}{2} + \frac{13*0^3}{3})[/tex]
[tex]R = (200*3 + \frac{10*9}{2} + \frac{13*27}{3}) - (0 + \frac{10}{2} + \frac{0}{3})[/tex]
[tex]R = (200*3 + 5*9 + 13*9) - (0)[/tex]
[tex]R = 600 + 45 + 117 - 0[/tex]
[tex]R =762[/tex]
The population of insect between the required interval is 762
The required change in the population of insects between day 0 and day 3 is 762.
Given that,
A population of insects increases at the rate of 200++ 10t + 13t2.
We have to determine,
What is the change in the population of insects between day 0 and day 3.
According to the question,
The rate change with time is represented as:
[tex]\frac{dr}{dt} = 200+10t+13t^{2}[/tex]
To determine the change in the population of insects between day 0 and day 3,
Integrating the given function with respect to time with limit 0 days to 3 days.
[tex]\int\limits^3_0 dr = \int\limits^3_0 (200+10t+13t^{2} ). dt\\\\\int\limits^3_0dr =\int\limits^3_0 \, 200dt + \int\limits^3_0 10tdt +\int\limits^3_0{13t^{2} dt\\\\\\\\R = [200t]^3_0 + [5t^{2} ]^3_0 + [\frac{13t^{3} }{3} ]^3_0\\\\R = 200[(3) - (0)] + 5 (3^{2} - 0^{2} ) + \frac{13}{3} [ 3^{3} - 0^{3} ]\\\\R = 200(3) + 5 (9) + \frac{13}{3}(27)\\\\R = 600+45+117\\\\R = 762[/tex]
Hence, The required change in the population of insects between day 0 and day 3 is 762.
To know more about Rate change click the link given below.
https://brainly.com/question/24540629