Answer: -2y^2+7y-4
Step-by-step explanation:
Combine -5y^2 and 3y^2 to get -2y^2.
Combine 5y and 2y to get 7y.
Combine -5, 2, and -1 to get -4.
Put these in order with the highest exponent first.
-2y^2+7y-4
In its first year a manufacturer had a financial loss of 3,000 in its second year the manufacturer had a financial loss of 500 How much greater in dollars was the financial loss in the first year than the financial loss in the second year
Answer:
[tex]D = \$2500[/tex]
Step-by-step explanation:
Given
Represent the financial los s in the first year as F1 and the second year as F2
[tex]F_1 = \$3000[/tex]
[tex]F_2 = \$500[/tex]
Required
How much is greater is F1 than F2
What this question implies is that; the difference between both finan cial losses be calculated;
Represent the difference with D
[tex]D = F_2 - F_1[/tex]
Substitute values for F1 than F2
[tex]D = \$3000 - \$500[/tex]
[tex]D = \$2500[/tex]
Hence, the calculated difference is $2500
if we represent the length of a line by a, how may we represent the length of a line that is 3 inches shorter. If the combined length of the two lines is 15 inches, what is the length of each line?
Answer:
The lines' lengths are: 8 inches and 5 inches.
Step-by-step explanation:
Calling "a" the length of the line, a line that is 3 inches shorter can be written in math terms as:
a - 3
If the combined (added) length of these two lines is 15 inches, then we can write:
a + (a - 3) = 15
a + a - 3 = 15
2 a - 3 = 15
2 a = 15 + 3
2 a = 18
then
a = 18/2 = 9
Therefore, the length of one line is 8 inches, and the length of the shorter line is:
8 - 3 = 5 inches
Multiply 546.1 x 0.52 =
Answer:
283.972
Step-by-step explanation:
i just know
Answer: 283.972
Step-by-step explanation: You have to use long multiplication to evaluate the equation.
I hope this helps you out.
I WILL GIVE BRAINLEST Order the numbers from least to greatest. 1=least and 4=greatest sq root of 9 over 4, sq root of 5, 2.5, or 5 over 3
Which expression is equivalent to –2(5x – 0.75)? 10x – 0.75 10x + 0.75 –10x – 1.5 –10x + 1.5
Answer:
D
Step-by-step explanation:
i got it right
Answer: D -_-
Step-by-step explanation: Because its on edge
Complete the square to solve the equation below.
Check all that apply.
x2 + 8x-1 = 19
O A. x= -10
O B. X= -2
O C. X=-3
O D. X = 2
Answer: X= -10, and X=2
Step-by-step explanation:
Answer:
X=-10 and x=2
Step-by-step explanation: so the answers would be A. And D.
A city currently has 60 family-owned restaurants. In the future, it is estimated that the number of those restaurants will decline at a rat of 18% per year. Based on that estimate, what is the fewest number of years it will take for there to be less than 20 family-owned restaurants in the city? A.1 B. 3 C. 4 D. 6
The correct answer is D. 6
Explanation:
To know precisely how the number of restaurants in the city decreases over time, it is necessary to determine the 18% of the total of restaurants each year and to subtract this number. The process year per year is shown below:
First-year- 60 restaurants- Find the percentage by writing the known value and using cross multiplication
[tex]60 = 100[/tex] %
[tex]x = 18[/tex]%
[tex]x 100 = 60 x 18[/tex]
[tex]x = \frac{1080}{100}[/tex]
[tex]x = 10.8[/tex] Number of restaurants that were closed
[tex]60-10.8 = 49.2[/tex] New total
Second-year - 49.2 restaurants- Repeat te process
[tex]x = \frac{49.2x 18}{100}[/tex] Shortened version of the equation. Total of restaurants, multiplied by percentage and divided into 100 (total percentage)
[tex]x = 8.8[/tex]
[tex]49.2 - 8.8 = 40.4[/tex] New total
Third-year- 40.4 restaurants
[tex]x = \frac{40.4 x 18}{100}[/tex]
[tex]x = 7.2[/tex]
[tex]40.4-7.2 = 33.2[/tex] New total
Fourth-year- 33.2 restaurants
[tex]x = \frac{33.2x 18}{100}[/tex]
[tex]x = 6.3[/tex]
[tex]33.2- 6.3= 26.9[/tex] New total
Fifth-year- 26.9 restaurants
[tex]x = \frac{26.9 x 18}{100}[/tex]
[tex]x = 4.8[/tex]
[tex]26.9-4.8 = 22.1[/tex] New total
Sixth-year- 22.1 restaurants
[tex]x = \frac{22.1x 18}{100}[/tex]
[tex]x= 3.96[/tex]
[tex]22.1-3.9 = 18.1[/tex]
According to this at this rate, it will take at least 6 years for the number of restaurants to be below 20.
The number of customers to visit a local small businesses 51,200 and has been continuously declining at a rate of 3.8 each year what is the approximate number of customers that visit the business in 14 years
Answer:
=30076 customers
Step-by-step explanation:
Number of customer= 51,200
rate of declination=3.8 %= 0.038
We will use the expresion below in calculating the approximate number of customers that visit the business in 14 years.
A=Pe^(rt)
Where P=initial amt,
r=annual rate of growth or decline,
A=amount after t years.
37800=Pe^.017t
51200=Pe^0.038
P= 51200/e^(0.038*14)
But e^(0.038*14)= 1.7023
P= 51200/1.7023
P=30076
Approximate number of customers that visit the business in 14 years≈30076
if m and n vary directly and m=3 when n=2, what is the value of m when n=4
no
Answer:
m = 6
Step-by-step explanation:
We know that m and n vary directly and that m = 3 when n = 2. How would we find m when n = 4? For starters, we can see that the value of n doubled (we know this because 2 doubled is 4), and since m and n vary directly, when n doubles, so does m so the answer is m = 3 * 2 = 6.
The four angles in a quadrilateral are in the ratio 2:5:6:7. Find the smallest angle in the quadrilateral?
Answer:
36
Step-by-step explanation:
Quadrilateral's angels always add up to 360. Thus, 2x+5x+6x+7x=360
20x=360 (divide both sides by 20)
x = 18
To find the smallest angle, plugin x into 2x.
2(18)=36
write down the unit digit for each of the following square first 78 pawer 2
Answer:
4
Step-by-step explanation:
Since 78² then 8² = 64 which indicates 4 is the unit digit
PLEASE HELPPP! Write the quotient
as a mixed number.
32 divided by 5 = 6 R2
Answer:
[tex]6 \frac{2}{5} [/tex]
Step-by-step explanation:
6 is the whole number, while 2 is the numerator and 5 is the denominator.
help me because i need help
Answer: c
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
To help understand how to solve this, try using a number line. You start at negative 5 and move 40 to the right. Whenever you add a positive you move to the right, and when you add a negative you move to the left!
The length of a rectangle is 7 inches less than its width. The perimeter of the
rectangle is 54 inches. Find the length and the width of the rectangle. Explain your
reasoning.
Answer:
8 in.
Step-by-step explanation:
Perimeter of a rectangle, P = 2(L + W)
Value of P = 46.
Length is 7 inches less than the width. This translates to L = W - 7
Substitute L = W - 7 into the perimeter equation, you get
46 = 2(W - 7 + W)
46 = 2(2W - 7)
46 = 4W - 14
4W = 60
W = 60 / 4 = 15 in
L = W - 7 = 15 - 7 = 8 in
The width and length of the rectangle in inches are 17 and 10 respectively.
What is perimeter ?Perimeter is the sum of the lengths of all the sides of a given plane figure.
According to the given question the length of a rectangle is 7 inches less than its width.
Assuming the width of the rectangle is x inches.
∴ From the given data length of the rectangle is ( x - 7) inches.
Given perimeter is 54 inches.
We know perimeter of a rectangle is 2( length + breadth).
∴ 2{ x + ( x - 7) } = 54.
2 { 2x - 7 } = 54
4x - 14 = 54
4x = 54 + 14
4x = 68
x = 17.
So, the width of the rectangle is 17 inches and length of the rectangle is (17 - 7) inches which is 10 inches.
learn more about perimeter here :
https://brainly.com/question/6465134
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If f(x) = 5x + 40, what is f(x) when x = –5? –9 –8 7 15If f(x) = 5x + 40, what is f(x) when x = –5? –9 –8 7 15
Answer:
15
Step-by-step explanation:
The value of f(x) when x = -5 is 15
How to determine the valueFrom the equation
f(x) = 5x + 40
Substitute the value of x = -5
We have,
f(x) = 5(-5) + 4=
f(x) = -25 + 40
f(x) = 15
Therefore, the value of f(x) when x = -5 is 15
Learn more about functions here:
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What is the quotient property of exponents?
Answer:
when you divide powers with the same base, you can just subtract the exponents
A customer brings a box with a mix of integers as inputs to a function machine. She wants you to program a function machine so that the output is always negative. Your manager suggests -x/2 - 10 . Did the manager make a good suggestion? Are there any inputs that will not meet the customer’s needs? Explain.
Answer:
The manager did not make a good suggestion.
Any values of x that are less than or equal to -20 will result in a non-negative output and will not meet the customer's needs.
Whats the right answer?
Answer:
A
Step-by-step explanation:
Hello, I assume that the quadratic function f has real coefficients, so this is something like, a, b and c being real numbers
[tex]f(x)=ax^2+bx+c[/tex]
If a complex number z is a zero of f ( meaning solution of f(x)=0) then
[tex]\overline z[/tex] which is the conjugate of z is a zero too, because
[tex]\text{if } f(z)=0=az^2+bz+c \text{ then}\\\\\overline {f(z)}=0=a\overline z ^2 +b \overline z + c\\\\\text{meaning } f(\overline z)=0[/tex]
Here, we know that [tex]\sqrt{7}+5i[/tex] is a solution, so
[tex]\overline {\sqrt{7}+5i}= \sqrt{7}-5i[/tex] is a solution too.
Thank you
Pleaseeee solve this math for me I reallyyyy neeed help
Pleaseee
Any wrong answer I’ll report
Answer:
see explanation
Step-by-step explanation:
Given that z² is directly proportional to w then the equation relating them is
z² = kw ← k is the constant of proportion
To find k use the condition z = 4 when w = 8, thus
4² = 8k
16 = 8k ( divide both sides by 8 )
2 = k
(i)
z² = 2w ← equation of proportion
(ii)
When w = 18, then
z² = 2 × 18 = 36 ( take the square root of both sides )
z = [tex]\sqrt{36}[/tex] = 6
(iii)
When z = 5 , then
5² = 2w
25 = 2w ( divide both sides by 2 )
w = 12.5
Ten children measured how high they could jump. The results they recorded, in inches, were as follows: 8, 9, 8, 6, 8, 12, 9, 10, 11, 16 What is the median of these measures?
A. 8 in.
B. 9 in.
C. 9.5 in.
D. 10 in.
E. None correct
Answer:
b) 9 in
Step-by-step explanation:
To find median arrange the data in ascending order and count the number of data's. if the total number of data is odd number, then (n/2)th term is the median.
If the total number of data is even, then Average of (n/2)th term and (n/2)+1 th term is the median
Ascending order:
6, 8, 8 , 8 , 9 , 9 , 10 , 11 , 12 , 16
total = 10. so even number
Median = average of 5th term and 6th term
=(9+9)/2
= 18/2
= 9
Brenden runs six times a week for thirty minutes and lifts three times a week for twenty minutes. Write a mathematical expression for the number of hours Brenden works out in a week.
Answer:
H= x(6)+ y(6)Step-by-step explanation:
Let the number of hours for running be x
And the number of hours for lifts be y
Let the total hours for work out be H
Given that
x= 30 min* 6= 180 min =3 hours
y= 20 min *6 =120 min= 2 hours
H= 30(6)+ 20(6)
H= 180+120
H= 3+2
H= 5 hours of work out for the week
A 11 L solution that was 25 % vinegar was mixed with a 12 L solution that was 67 % vinegar. Find the new concentration of vinegar.
Answer:
46.91%
Step-by-step explanation:
The first solution contains 11 * 0.25 = 2.75 L of vinegar
The second solution contains 12 * 0.67 = 8.04 L of vinegar
When mixed together, that adds up to 8.04 + 2.75 = 10.79 L of vinegar
The total volume of the combined solutions is 11 + 12 = 23 L of solution
So the new concentration is 10.79/23 ≈ 0.4691 ≈ 46.91%
Sharika can finish the work in 6 days and Palkey can do the same work in 8 days. They both worked together for for 2 days then Palkey left the work. How many days will Sharika take to finish the remainig work.
Answer:
Sharika needs 2.5 days to finish the remaining work
Step-by-step explanation:
Sharika can do a work in 6 days palkey can do it in 8 days
Then the amount of work sharika can do in 1 day = 1/6
And the amount of work palkey can do in 1 day = 1/8
The amount of work both of them can do together in 1 day = 1/6 + 1/8
= 7/24
The amount of work both of them can do together in 2 day = (2× 7/24)
= 7/12
Since Palkey left the work,the amount of
work remaining for Sharika to do alone = (1 - 7/12 )
= 5/12
The number of days Sharika take to finish the remainig work. = (5/12 ÷ 1/6 )
= 5/2 days
Therefore, Sharika needs 2.5 days to finish the remaining work.
URGENT I NEED HELP PLEASE !!
Answer:
29[tex]\sqrt{5}[/tex]
Step-by-step explanation:
11[tex]\sqrt{9*5}[/tex] - 4[tex]\sqrt{5}[/tex]
Take nine out - square root of 9 is 3
= 3 x 11 [tex]\sqrt{5}[/tex] - 4[tex]\sqrt{5}[/tex]
= 33[tex]\sqrt{5}[/tex] - 4[tex]\sqrt{5}[/tex]
= 29[tex]\sqrt{5}[/tex]
can not be simplified any more
Hope that helped!!! k
cos a cosec a Vseca - 1 = 1
Answer:yes 1 =-1
Step-by-step explanation:
Gray gob you are correct
The graph of y = f(x) is shown below. Find the value of f(5)
Answer:
5
Step-by-step explanation:
WHen f(x) = f(5)
x=5
therefore y = 5
Hope that helped!!! k
Answer:
5
Step-by-step explanation:
Asking for f(5) is the same as asking for the value of f(x) when x = 5.
So we're looking for the y-value our graph gives when x = 5.
Find 5 on the x-axis and trace the line up to the graph, and then left to find the y-value. Here, it happens to be 5.
A length of glass tubing is 10 cm long. What is its length in inches to the nearest inch? in.
Answer:
4 inches
Step-by-step explanation:
on egde 2020
determine the domain and range of the following function. Record your answers in set notation. Can someone explain this to me? I can't understand any of it.
Answer:
The answer is D.
Step-by-step explanation:
The domain are the x-values and the range are the y-values. The open circle on the graph is stating that that specific point is not included in the line, so that means that the point (-2,-5) is not included. In words, the answer means the domain or x=all real numbers not including -2 and the range or y=all real numbers not including -5. Hope it helps
a rectangular prism is 12 cm long 6 cm wide and 5cm high what's the volume of the rectangular prism
Answer:
360
Step-by-step explanation:
rectangular prism volume = Width * Length * Height
Width = 5
Length = 12
Height = 6
volume = 360
The volume of the rectangular prism is of 360 cubic centimetres.
------------------------------
The volume of a rectangular prism with length l, width w and height h is given by:
[tex]V = lwh[/tex]
------------------------------
In this problem:
12cm long means that [tex]l = 12[/tex]6 cm wide means that [tex]w = 6[/tex]5 cm high means that [tex]h = 5[/tex].Thus, the volume, in cubic centimetres, is of:
[tex]V = 12 \times 6 \times 5 = 360[/tex]
A similar problem is given at https://brainly.com/question/23756783
solve for q 3(q+4/3)=2
Answer: Q= -0.6 or -2/3
Step-by-step explanation: