Answer:
784m^2
Step-by-step explanation:
is a rectangle with sides of 40m and 20m, in the upper right corner a right triangle has been removed with the legs of: 40 - 32 = 8m and 20 - 16 = 4m, we find the area of the rectangle (b * h).
40 * 20 = 800m ^ 2, then we find the area of the right triangle
1/2 b * h: 1/2 8 * 4 = 16 m ^ 2.
we remove the area of the triangle from the rectangle and we have the area of the figure: 800 - 16 = 784m^2
If x>-1, which number could be a value of x? O A. -1 O B. -7 O c. 1 O D.-13
Answer:
1
Step-by-step explanation:
all the other are less than -1 and since the rule is that x has to be greater than -1 its 1
person 1 can do a certain job in 15min, and person 2 can do the same job in 30 min. when completing the job together, which expression would be used to represent the amount of work done by person 1
A. 15
B. 1/15
C. x/15
Answer:
I believe the answer is B. 1/15
Step-by-step explanation:
Answer:
B. 1/15
Step-by-step explanation:
what 3.2 x 10^3
in standard form
Answer:
3,200
Step-by-step explanation:
10^3 is also represented as 1,000, so you just move the decimal over to the right 3 places.
Which 2 numbers that are between -8 and 5/4? -4.0, 1.3%, -0.1, -1/4, 3/2, 130% Help me!!
Answer:
This is a "strategic" guess
Step-by-step explanation:
I think it is -0.1
Help...../..........///////////.
Answer:
The answer is C. $2.20 per lb
it is C 2.20 per pound
Step-by-step explanation:
because 2.20 x 5 = 11 hope
hope this helps
Find the value of the missing variable(s). All figures are kites. (please don't leave any links...)
Answer:
Step-by-step explanation:
The values of x and y are required.
and
From the given figure the sides and are equal.
Also, and are equal.
So,
Hence, and
If x = 16,justify if this value is a solution to the equation:2x-(x+3)=13
Answer:
true, when you substitute 16 for x and solve it adds up correctly
Answer:
13 = 13
so True
Step-by-step explanation:
x = 16
2(16)-(16+3)=13
32-19=13
13=13
please can you solve this fast
Step-by-step explanation:
[tex] {x}^{2} + 8x = 0[/tex]
[tex] {x}^{2} + 8x + 16 = 16[/tex]
[tex](x + 4) {}^{2} - 16 = 0[/tex]
3. Priscilla is trying to decide which of two aquariums she should buy.
One aquarium is a rectangular prism with a base that is 20 inches by 19
inches and a height that is 22 inches. The other aquarium is in the shape
of a cube that has 20-inch edges. Find the difference in the volume of
the fish tanks?
one has more width the other shows the length
Find x if f(x) = 2x + 7 and f(x) = -1.
A. 5
B. -3
C. -4
Answer: C
Step-by-step explanation: When I graphed the equation and went to -1 y, the answer was -4.
What is the area of this figure?
o 573 units
o 638 units
O 683 units
Answer:
638 square units
Step-by-step explanation:
37 × (9 + 16) - 9 × 16 - 13 × (25 - 14) =
= 37 × 25 - 9 × 16 - 13 × 11
= 925 - 144 - 143
= 638
Answer: 638 square units
Answer:
638
Step-by-step explanation:
i took the k12 test
Ali saved Rs. 36. .
He spent 3/4 of his saving on a toy car.
What is the price of the toy car?
Answer:
₹ 108
Step-by-step explanation:
Let the money Ali saved be x
As he spent 3/4 of x, part of money save is (1/4) of x
[tex]\frac{1}{4}*x = 36\\\\[/tex]
x = 36*4
x = ₹ 144
Price of toy = 144 - 36 = ₹ 108
Ali saved Rs. 36. So, the saving of Ali is Rs. 36
Now he is spending some money for buying a toy car for him with his savings. He spent 3/4 of the saving for paying for the car.
So, Price of the car:
• 3/4 of the saving
Proceeding further mathematically,
➝ 3/4 × Rs. 36
➝ Rs. 108 / 4
➝ Rs. 27
Thus the price of the car is Rs. 27. And we are done...
Carry On Learning [tex]![/tex]
What are all the statistical questions?
One kilogram is approximately 2.2 pounds. An elevator in London shows a weight limit of 200
kilograms. How many pounds (lbs.) is this?
Answer:
440!!
Hope I helped! (and also if nobody said this today, remember that you´re loved) <33
The height after t seconds of an object projected upward with an initial velocity of 48 feet per second from a 210-foot tower can be modeled by h=−16t^2 + 48t +210. The height of a neighboring 50-foot tall building is modeled by the equation h=50. The time (t) when the object will be at the same height as the building is found to be t = –2 and t = 5. Which statement BEST describes the validity of these solutions? A. Neither solution is valid since time values cannot be squared. B. The solution t = – 2 is the only solution since 5 seconds is an unreasonable amount of time for the object to reach a height of 50 feet. C. The solution t = 5 is the only valid solution to this system since time cannot be negative. D. Both are valid solutions to this system since both values make the equation h=−16t^2+ 48t + 210 true.
Given:
The height h of an object after t seconds is
[tex]h=-16t^2+48t+210[/tex]
The height of a neighboring 50-foot tall building is modeled by the equation h=50.
The time (t) when the object will be at the same height as the building is found to be t = –2 and t = 5.
To find:
The statement which describes the validity of these solutions.
Solution:
We have,
[tex]h=-16t^2+48t+210[/tex]
Here, t is the time in seconds.
For t=-2,
[tex]h=-16(2)^2+48(-2)+210[/tex]
[tex]h=-64-96+210[/tex]
[tex]h=50[/tex]
For t=5,
[tex]h=-16(5)^2+48(5)+210[/tex]
[tex]h=-400+240+210[/tex]
[tex]h=50[/tex]
So, the value of h is 50 at t=-2 and t=5.
We know that time is always positive so it cannot be negative value. It means t=-2 is not possible.
The solution t = 5 is the only valid solution to this system since time cannot be negative.
Therefore, the correct option is C.
WILL GIVE BRAINLIEST TO RIGHT ANSWER!!1
850 students so those with no participation would be 12% of 850, which is also 0.12*850. Only one sport would be 0.42*850. Two sports would be 0.28*850. Three or more sports would be 0.18*850.
No participation: 102 students
Only one sport: 357 students
Two Sports: 238 students
Three of more sports: 153 students
Answer:
No Participation: 102 students
Only One Sport: 357 students
Two Sports: 238 students
Three or More Sports: 153 students
Step-by-step explanation:
The percentages represent parts of the total.
To calculate the number of students, we would need to take a percentage of the total.
So for the No Participation group, we would take 12% of 850. "Of" indicates that we would multiply the terms together.
To multiply a %, we first need to convert it to a decimal by moving the decimal point to the left two times.
The No Participation group would then be 0.12 × 850 which equals 102.
The 1 sport group would be 0.42 × 850 = 357
The 2 sport group would be 0.28 × 850 = 238
And the 3+ sport group would be 0.18 × 850 = 153
which is faster 220 newspaper in 55 mins or 135 newspapers in 45 mins. which one is the faster rate
Answer: 135 newspapers in 45 mins
Step-by-step explanation:
Which of the following numbers is divisible by 3, 5, and 10? OA) 15 B) 20 OC) 25 OD) 30
Answer:
30 is the correct answer because 3times 10 =30 5 times 6 is 30 and 10 times3 is also 30
Can anyone solve this correctly?
Answer:
43.52 in.
Step-by-step explanation:
7 in. x 10.2 in. = 71.4 in.
4.1 in. x 6.8 in. = 27.88 in.
71.4 in. - 27.88 in. = 43.52 in.
2. In 2014, Social Security tax was 6.2%,
on the first $117,000. If Grace earned
$98,750 in 2014, how much Social
security tax did she pay?
x + 3=12 need help now someone please help me
Answer:
x = 9
Step-by-step explanation:
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Subtract 3 from both sides of the equation:
x + 3 (-3) = 12 (-3)
x = 12 - 3
x = 9
x = 9 is your answer.
~
Molly bought a pair of gloves and a skirt. The gloves cost £4. She sold the gloves and skirt for a total of £48. She made 100% profit on the cost of the gloves, 20% profit on the total cost. Work out her percentage profit on the cost of the skirt. Give your answer to 1 decimal place.
Answer:
Profit % = 111.1 %
Step-by-step explanation:
Cost of glove = £4
Sales price of glove and skirt = £48
100% profits on the cost of the glove
20% profit on the total cost
Profit on the total cost = 20% = 0.20
Total cost + 0.20 total cost = Sale value
1.20 * total cost = 48
Total cost = 48 / 1.20
Total cost = 40
Cost of the skirt = Total cost - cost of the gloves
Cost of the skirt = 40 - 4
= 36
Price of the skirt = total value - price of the gloves
Total value = £48
100% of £4 = 100/100 * £4
= £4
Profits + cost of glove = $8
Amount remaining = £48 - £8
= £40
Profit percentage on the skirt = price of the skirt / cost of the skirt
= 40 / 36 * 100
= 1.1111 * 100
Profit % = 111.1 %
If you invest $8,600 at a 3. 95% simple annual interest rate, approximately how long will it take for you to have a total of $21,000? a. 25. 3 years b. 36. 5 years c. 45. 9 years d. 60. 7 years.
The time needed to reach the amount of $21000 will be 36.5 years.
What will be the time to reach the amount $21000?It is given that
Principle = $8600
Rate = 3.95%
Total amount = $21000
So the total interest will be = Amount -principle = 21000-8600=$12400
So by using the formula
[tex]SI = \dfrac{P\times R\times T}{100}[/tex]
Here p = principle
R= Rate of interest
T= time
SI= interest amount
Now putting the values
[tex]12400= \dfrac{8600\times3.95\times T\time}{100}[/tex]
[tex]T=\dfrac{12400\times100}{3.95\times8600}[/tex]
[tex]\rm T=36.5 \ years[/tex]
Thus the time needed to reach the amount of $21000 will be 36.5 years.
To know more about simple interests follow
https://brainly.com/question/2294792
Does the graph represent a linear or nonlinear function? Explain
Answer:
non linear
Step-by-step explanation:
Because a linear function its a straight line who pass from the origin point because the values are proportional
A student correctly answered 35 of the 40 questions on a mathematics exam. What percent did she answer correctly?
Answer:
87.5%
Step-by-step explanation:
To find a percentage of questions correct divide the number of correct answers by the total number of questions and then multiply that by 100.
(35/40)100=87.5
1. Find the area of this complex shape composed of two congruent parallelograms. 8 cm 5 cm
Answer:
80
Step-by-step explanation:
since it is a parallelogram, you can multiply it easily. 8x5+40 40x2+80
Tony purchased a rare 1959 Gibson Les Paul guitar for $12,000. Experts estimate that its value will increase by 14% per year. If this trend continues, how many years will it take for the guitar to reach a value of $90,000?
Answer: 214332.47
There is no need to explain you can just see the photo that I had displayed.
Line segment XY has the coordinates X(–12, –6) and Y(5, 6). What is the approximate length of line segment XY?
A.
21.1 units
B.
20.8 units
C.
13.9 units
D.
12.5 units
Answer:
20.8
Step-by-step explanation:
3) Daniel bought a magazine for $7 and four
erasers. He spent a total of $19. How
much did cach craser cost?
Answer:12 dollars and 9 cents
Step-by-step explanation:
Answer:
each eraser was $3
Step-by-step explanation:
You do 19-7 (because ur subtracting the magazine cost) then you have 12. You divide 4 by 12 which equals 3. Therefore, each eraser is $3. Hope this helped :)
simplify (5x-7) (2x+3) (7x-8)
Answer:
70x³ - 73x² - 155x + 168
Step-by-step explanation:
Given
(5x - 7)(2x + 3)(7x - 8) ← expand the first pair of factors using FOIL
= (10x² + x - 21)(7x - 8)
Each term in the second factor is multiplied by each term in the first factor, that is
10x² (7x - 8) + x(7x - 8) - 21(7x - 8) ← distribute the 3 parenthesis
= 70x³ - 80x² + 7x² - 8x - 147x + 168 ← collect like terms
= 70x³ - 73x² - 155x + 168