Answers
Step-by-step explanation:
[tex] \\ 20. \: \: ( \frac{ - 3}{4} )(4\frac{1}{6} )[/tex]
[tex] \\ = \frac{ - 3}{4} \times \frac{25}{6} [/tex]
[tex] \\ = \frac{ - 25}{8} [/tex]
[tex] \\ = - 3.125[/tex]
[tex] \\ 21. \: \: ( - 3\frac{7}{8} )( - 5\frac{3}{4} )[/tex]
[tex] \\ = \frac{ - 31}{8} \times \frac{ - 23}{4} [/tex]
[tex] \\ = \frac{713}{32} [/tex]
[tex] \\ = 22.28125[/tex]
Related Questions
What is the length of ef in the right triangle below?
Answers
Answer:
24
Step-by-step explanation:
You're given a side and a hypotenuse in a right triangle, so you're able to use the Pythagorean Theorem.
[tex]a^{2} + b^{2} = c^{2}\\\\a^{2} + (7)^{2} = (25)^{2}\\[/tex]
Now isolate a on one side and solve for a.
[tex]\\a^{2} = (25)^{2} - (7)^{2}\\\\a = \sqrt{(25)^{2} - (7)^{2}} \\\\a = 24[/tex]
We know that February has either 28 or 29 days, but there is a year in the future, February will have 30 days
What exactly is this year?
Answers
Answer:
The year 2020 is a leap year, which means February will have 29 days rather than 28, and the overall number of days will be 366 rather than 365. This was also the case in 2016, and the year 2024 will be a leap year once more.
Step-by-step explanation:
canh square roots be rational numbers ?
Answers
All rational numbers have the fraction form
,
a
b
,
where a and b are integers(≠0
b
≠
0
).
My question is: for what
a
and
b
does the fraction have rational square root? The simple answer would be when both are perfect squares, but if two perfect squares are multiplied by a common integer
n
, the result may not be two perfect squares. Like:
49→818
4
9
→
8
18
And intuitively, without factoring, =8
a
=
8
and =18
b
=
18
must qualify by some standard to have a rational square root.
Once this is solved, can this be extended to any degree of roots? Like for what
a
and
b
does the fraction have rational
n
th root?
Have a blessed day God bless.
Helppppppppppppp please
Answers
Answer:
1.45 x 10^2
Step-by-step explanation:
In scientific notation, you get the number down to 1 digit before the decimal place and all the rest after it, then multiply by 10 raised to a power in order to get it back to the original. An easy way to do it is to count the number of times you moved the decimal and remember which direction you did it. The number is the power (in this case 2) and the direction tells you if it's positive or negative (in this case it was to the left, so it's positive two.)
In simpler terms, slide the decimal to the right two places and make it 1.45, then multiply it by 10^2 (which is 100) to make it equal to 145. This leaves you with 1.45 x 10^2.
when making a whole number a decimal, the decimal is at the end of the number so you move it to make it have just one whole number. Then the times you moved the decimal forward is how many exponents you write in top
(Might sound confusing)
if sin2x,1,cos2x are in gp ,then x =
Answers
Answer:
Man I can't express how much joy I have rn. thanks man!
Someone please help me with this.
Answers
Answer:
Step-by-step explanation:
I know this is rather sneaky, but on a multiple choice question on a quiz, you need all the help you can get. I'm not saying this is a quiz, by the way. It doesn't say that it is anywhere.
Look carefully at the first three statements. Is there an angle mentioned at all? There isn't, is there? That being the case (and since nothing is marked as a right angle), the only possible answer is SSS which D.
Answer:
D
Step-by-step explanation:
There are not any angles shown, and the triangle is not a right triangle, so it is SSS
17 in 24 in. 12 in) what is the area of the parallelogram??
Answers
Answer:
53 in.
Step-by-step explanation:
17 + 24 + 12=53
don't forget the in.
Find the equation of the linear function represented by the table
Y 2 7 12 17
x 1 2 3 4
Answers
Answer:
Step-by-step explanation:
(1, 2) (2, 7)
(7-2)/(2 - 1) = 5/1= 5
y - 2 = 5(x - 1)
y - 2 = 5x - 5
y = 5x - 3
4% of 50
Percent of a quantity
M
Answers
Answer:
4% of 50 is 2
Step-by-step explanation:
Jonathan made $546 last
month selling newspapers.
This month he made $874.
He then got an extra $200
because he sold the most
papers. How much money
did he make in all?
Answers
Answer:
1620
Step-by-step explanation:
Answer:
$1620
Step-by-step explanation:
Earning in last month: $546
Earning in this month: $874
Extra earning: $200
Total earning = 546 + 874 + 200 = 1620
) Chứng minh rằng giá trị của biểu thức ((x-2√x)÷(√x-2) ) - ((x-4)÷√x+2)) không phụ thuộc vào giá trị của biến.
Answers
...........chúc bạn thành công ✊
9
A car mechanic charges an initial fee to inspect a car plus an hourly rate to repair the car if no new parts
are needed. The total charges for the inspection and repair of cars with no new parts needed are shown in
the table below
The Mechanic's Bill
Number of
Total
Hours
Worked
Charges
$25
$60
2
$95
$130
4
$165
Which equation best represents the linear relationships between y, the total charges in dollars, and x, the
number of hours the mechanic worked?
0
1
3
A y = x + 35
B y = x + 60
cy - 35x + 25
Dy = 35x +60
Answers
Answer:
C) is correct answer
Step-by-step explanation:
In pic
(Hope this helps can I pls have brainlist (crown)☺️)
The equation y = 35x +25 represents the linear relationship between y, the total charges in dollars, and x, the number of hours the mechanic worked.
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
The given table shows the relationship between the total charges and the number of hours worked by the mechanic.
Number of hours worked, x Total charges, y
1 60
2 95
3 130
4 165
Let the equation for this relationship:
y = mx + c ....(i)
From the table, we can see that the mechanic charges an initial fee of $60, and then an additional $35 for each hour worked.
Here, m = {(95-60)/(2-1)} = 25
60 = 25(1) + c
c = 60 - 25 = 35
So, the equation is y = 25x + 35
Therefore, the equation y = 35x +25 represents the linear relationship.
Learn more about the equation here:
brainly.com/question/13947055
#SPJ2
Construct a polynomial function with the stated properties. Reduce all fractions to lowest terms.
Second-degree, with zeros of −4 and 6, and goes to −∞ as x→−∞.
p(x) =
Answers
9514 1404 393
Answer:
p(x) = -x^2 +2x +24
Step-by-step explanation:
When the polynomial has a zero at x=q, it has a factor of (x -q). The zeros of -4 and 6 tell you the factors are (x -(-4)) and (x -6). The end behavior tells you the leading coefficient is negative.
p(x) = -(x +4)(x -6)
p(x) = -x^2 +2x +24
−1−(−5x)−2x+2x 2 +7
Simplify this expression as much as possible
Answers
Answer:
Hello, the simplified expression would be:
7x + 6
What is 80% of _____ is 60
Answers
Answer:
75
Step-by-step explanation:
First, we know that 60 is 80 percent of something.
So, on that knowledge, we can setup this equation:
X × 0.80 = 60
Then, we multiply both sides by 0.80 , we then get 75.
We can check with 75 × 0.80 does equal to 60!
If this answer helped, consider marking this as brainliest!
Cheers!
a
A map has a scale of 1cm : 3 km
On the map, the distance between two towns is 7cm.
What is the actual distance between the two towns?
Include units for your answer.
A map has a scale of 1cm : 4 kilometres.
The actual distance between two cities is 52 kilometres.
What is the distance between the cities on the map?
Answers
Answer:
7/3=2.3
1. the distance between the towns is 2.3 km
52/4=13
2. the distance between the cities on the map is 13 cm
Step-by-step explanation:
A large pool has a faucet to allow water to enter the pool and a drain to allow water to leave the pool.
Each minute, the faucet allows 1215 gallons of water to enter the pool, and the drain allows 1523 gallons to leave the pool.
What is the change in the amount of water in the pool after 112 minutes?
Enter your answer as a simplified mixed number by filling in the boxes. FRACTION PROBLEM
Answers
Answer:
-34496 gallons = 34496 gallons less
Step-by-step explanation:
In 112 minutes, 1215(112) = 136080 gallons of water is added by the faucet
In 112 minutes, 1523(112) = 170576 gallons of water are drained from the pool.
So, assuming that the pool is not completely drained in the 112 minute time interval, the change in the amount of water = 136080 - 170576 = -34496 gallons; i.e., the amount of water in the pool is 34496 gallons less.
And this is not the only question I got to get five right so if you get the question right wait until I make another question please and thank you
Answers
9514 1404 393
Answer:
A rotation 90° CW followed by translation right 5 units.
Step-by-step explanation:
It is easier to choose the right composition of transformations if we know what your choices are.
Figure F has an orientation that is 90° CW from that of figure E, so a 90° CW or 270° CCW rotation could be one of the transformations.
Rotation about the origin will move the figure so that the acute angle is in a different quadrant. In order to return it to the same quadrant a translation is required. The amount of translation will depend on whether it comes before or after the rotation.
Possible sequence of motions are ...
A rotation 90° CW followed by translation right 5 unitsTranslation up 5 units followed by rotation 90° CWIn the month of September, all of the Kroger grocery stores in Nashville sold 429,382 eggs. In that same month, all of the Kroger grocery stores in Memphis sold 283,054 eggs. How many eggs did the Nashville and Memphis Kroger grocery stores sell all together in the month of September? Use 2 strategies to show how you found out how many eggs Kroger sold in September.
Answers
Answer:
712436 eggs were sold together
Step-by-step explanation:
429,382 + 283,054 = 712436
PLEASE ANSWER FAST!!!
Answers
B is just being negatively squared two more times
Solve for X
Marking anybody who got it right the brainliest
Answers
Answer:
198°Step-by-step explanation:
We see angles P and R marked to be same with P having the angle measure indicated.
We assume the Q is the right angle, otherwise the given info is not enough to find the answer.
Added segments parallel to PQ and QR. See the picture.
The angle x is partitioned as:
Right angle and two complementary angles, one with P and one with R.Then its measure is:
90° + 2(90° - 36°) = 198°the price is three for $1.48 how much will one pepper cost?
Answers
Answer:
$0.4933
Step-by-step explanation:
i guess
Just divided by 3 ;)
What is the missing measure?
Answers
Answer:
Step-by-step explanation:
This is a problem of ratios:
Set the problem up with matching similar side lengths equal:
50/10 = x/12
First simplify the left side:
50/10 = 5
Next, multiply both sides by 12.
We are left with:
x = 12(5)
x = 60
2. In our country today, what do you think are the possible application of pattern and sequence in the field of engineering? How?
Answers
Engineering has many applications in our country focused on the construction and development of new technological devices.
Engineering is a term that refers to the set of scientific principles necessary to design and build machines, structures, and others such as:
BridgesTunnelsRoadsVehiclesBuildingsSystemsProcesses.Engineering is characterized by:
Innovation and invention.Development and improvement of techniques and instruments.According to the above, engineering has many applications in the country such as:
Construction of new and more technological buildingsManufacture of tools and devices for different applications such as education, medicine, construction, among others.Learn more in: https://brainly.com/question/18564178
Please help !!!! TIA
Draw Venn diagrams to show the prime factors for each of the following sets of three numbers.
a. 12, 14, 70
b. 6, 7, 8
Answers
Answer:
See attached file.
Step-by-step explanation:
A car is traveling at a steady speed. It travels 1 3/4 miles in 2 1/3 minutes. How far will it travel in 25 minutes? In 1 hour?
Answers
Answer: They would travel 17.25 miles in 23 minutes and 45 miles in 1 hour.
Step-by-step explanation:
If you divide 1 3/4 by 2 1/3 you get. 0.75 which is how far the car will travel each minute and then you can just multiply that number by however many minutes there are.
A math book at Housatonic Community College cost the bookstore $84 to purchase. They sell it for $126. What percent markup did the bookstore charge?
Answers
126/84= 1.5
1.5 x 100 = 150%
Proof : 1.5 x 84 =126
Which of the following is true when constructing a line graph?
Each axis has even spacing.
Each point represents a data pair.
The vertical axis shows increments of time.
The scale starts at the minimum value and goes to the maximum value. please help fast!!!!
Answers
Answer:
B
Step-by-step explanation:
Answer:
Each axis has even spacing.
Each point represents a data pair.
I took the test
What is the slope of the line that passes through the points (4, 10)(4,10) and (1, 10) ?(1,10)? Write your answer in simplest form.
Answers
Answer:
0
Step-by-step explanation:
Slope = Δy/Δx
Slope = 10-10/4-1
Slope = 0/3
Slope = 0
It is a Horizontal Line
-Chetan K
I need help in learning how to solve this equation using substitution:
-x -y -z = -8
-4x + 4y + 5z = 7
2x + 2z = 4
Answers
Answer:
x=3, z=-1, y=6
Step-by-step explanation:
you need to make the coefficients of each variable equal to each other then subtract 2 equations.
this one: multiply -4 in 1st
4x+4y+4z=32
-4x+4y+5z=7
_____________
8x+0-z=25
we have 2 equations with 2 variables now
2x+2z=4
8x-z=25