Answer:
length is 10, width is 7
Step-by-step explanation:
Area of a rectangle = length * width = lw
Area is known to be 70
length = twice width - 4 = 2w-4 = l
width=w
so A = lw = (2w-4)w = 70
(2w-4)w=70
2w^2-4w=70
2w^2-4w-70=0, divide by 2
w^2 - 2w - 35 = 0, not sure how your class solves these, I see visually
(w-7)(w+5)=0
w=7 or w=-5, -5 makes no sense in the real world (negative length), so w=7
l = 2w-4 = 2(7)-4 = 14-4 = 10
63 students choose to attend one of three after school activities: football, tennis or running.
There are 24 boys.
20 students choose football, of which 12 are girls.
17 students choose tennis.
22 girls choose running.
A student is selected at random.
What is the probability this student chose running?
Give your answer in its simplest form.
Answer:
the probability of the student chose running is 26 ÷ 63
Step-by-step explanation:
The computation of the probability of the student chose running is shown below:
= (Total students - football selected - tennis selected) ÷ (Total students)
= (63 - 20 - 17) ÷ 63
= 26 ÷ 63
Hence, the probability of the student chose running is 26 ÷ 63
Find the common ratio of the geometric sequence 19, 171, 1539, ...
Answer:
9
Step-by-step explanation:
Common ratio = Second term ÷ First term
= 171 ÷ 19 = 9
Can someone help me with this math question it’s on the image please!
Answer:
564
Step-by-step explanation:
56
Answer:
A is equal to 3 and B is equal to 2
A cylinder has a height of 19 feet and a diameter of 14 feet. What is its volume? Use a
3.14 and round your answer to the nearest hundredth.
Answer:
2923.34 is the exact answer
Someone help me please what is 4.3x102
4.3 times 102 is 438.6
Hope this helped! :)
Answer:
4.3 x 102 = 438.6 <3
You need to use long multiplication to find your answer.
GL!
(side note, it would be amazing if you could mark me brainliest so i can level up <33)
Please help! Do not take points or give answer without explanation or you will be reported!
Solve the binomial.
(1/2y - 50)(3/5y + 10)
Answer:
-24 7/10y - 500
Step-by-step explanation:
Use the distributive property to solve this question.
Distribute the 1/2y and the -50 over the next bracket.
(1/2y - 50)(3/5y + 10) = 1/2y(3/5y) + 1/2y(10) + - 50(3/5y) + - 50(10)
= 3/10y + 5y - 30y - 500
= -24 7/10y - 500
I hope this helps :)
PLEASE HELP IT"S DUE IN 20 MINS!!!
You are a carpenter who frames posters of various sizes. A customer asks you to frame a poster that requires 166 inches of molding. You have a piece of molding that is 13 feet, 9 inches long, that you can use for the frame.
Do you have enough molding to complete the task? Justify your reasoning.
The available molding is not enough. There are only 147 inches of molding.
The available molding is not enough. There are only 157 inches of molding.
The available molding is not enough. The molding is 1 inch shorter than required.
The available molding is enough. There are 9 inches more molding than required.
The available molding is enough. There are 0.8 inches more molding than required.
Answer:
the available molding is not enough the molding is 1 inch shorter
Step-by-step explanation:
convert 13 feet into inches then add the 9 inches
Solve: 2x2-x = 21 {-7/2,3} {-3, 7/2}
Answer:
The answer is (-3,7/2)
Step-by-step explanation:
[tex]2 {x}^{2} - x - 21 = 0 \\ (2x - 7)(x + 3) = 0 \\ 2x - 7 = 0 \: \: \: or \: \: x + 3 = 0 \\ x = \frac{7}{2} \: \: and \: x = - 3[/tex]
I am a math teacher If you need any explanation you can communicate with me on Whats on this number +201557831028
HELP WHAT IS THE SLOPE!!!!!!!!
Daniel wants to do 312 practice problems to prepare for an exam. If he wants to do approximately the same number of problems each day for 36 days, which best describes the number of problems that he needs to do each day?
Answer: 8/9 questions
Step-by-step explanation: 312/36= 8.6...
The answer depends on if you want to round up or down.
One spring day, Angel noted the time of day and the temperature, in degrees Fahrenheit. His findings are as follows: At 6 a.m., the temperature was 56° F. For the next 3 hours, the temperature rose 3° per hour. For the next 5 hours, it rose 1° per hour. The temperature then stayed steady until 6 p.m. For the next 3 hours, the temperature dropped 3° per hour. The temperature then dropped steadily until the temperature was 60° at midnight. On the set of axes below, graph Angel's data
Answer:
Please find attached the graph of the given data created with Microsoft Excel
Step-by-step explanation:
The question is a word problem with which we construct a table of values and then graph the data as follows;
[tex]\begin{array}{cc}Time &Temperature, \, ^{\circ } F\\06:00&56\\07:00&59\\08:00&62\\09:00&65\\10:00&66\\11:00&67\\12:00&68\\13:00&69\\14:00&70\\15:00&70\\16:00&70\\17:00&70\\18:00&70\\19:00&67\\20:00&64\\21:00&61\\00:00&60\end{array}[/tex]
The graph of the above data in created using the Chart options in the Insert menu of Microsoft Excel as seen in the attached image
subtract 7xy (x² - 2xy + 3y²) -
8x (x²y - 4xy + 7x y2) from
3y(4x²y-5xy +8xy²)
Answer:
im not sure but
Step-by-step explanation:
What's is a Binomial
Answer:
A binomial is an algebraic expression of the sum or the difference of two terms.
Step-by-step explanation:
Hope I helped! :)
What is the volume of a half sphere shaped bowl with a diameter of 10 in
Answer:
A sphere
Step-by-step explanation:
Volume: 523.5988inch^3
Radius: 5
If you deposit $4000 into an account paying 6%
annual interest. How much money will be in
the account after 5 years
(a²+2ab+b²)÷(a-b) divide it
I hope this answer will helps you.
3/4x=48 What is x? I can be a decimal or fraction.
Answer:
x=64
Step-by-step explanation:
Answer:
x = 64
Step-by-step explanation:
I cant give you the stel by step but I can check the work the fraction 3/4 multipled by 64 is 48.
In the diagram, ABC=DEF, find the values of x and y
Answer:
x=-1
y=66
Step-by-step explanation:
3x + 6 = 9
3x = -3
x=-1
10x+y=56
x=-1
-10+y=56
y=66
Find the missing angle for the rest please thanks
Anyone know this sorry if it’s a bit blurry
Answer:
y=-2/3x
Step-by-step explanation:
the angle is negative and if you look closely the slope is 2/3x just add the minus(-) and done.
y=-2/3x
Hope this helps!
encuentra tres fraccion equivalente en cada caso *36/20 *-1/4 *50/40 *-5/-6
Answer:
nose pero ayúdame
Step-by-step explanation:
acupo ayuda
The estimate obtained from a sample of which size is likely to be closest to
the actual parameter value of a population?
A. 50
B. 120
C. 100
D. 75
Help??!!??
Answer: 120
Step-by-step explanation:
AP.EX
The estimate obtained from a sample of 120 is likely to be closest to the actual parameter value of a population
In sampling; the higher the sample size, the higher the estimate cam be closer to the actual parameter
From the list of given options;
The sample size 120 has the highest chance to be close to the actual parameter value
This is so because, 120 is greater than other sample sizes
Read more about sample size at:
https://brainly.com/question/7301139
a cruise ship travels at a constant speed. in 3 hours,the ship travels 72 nautical miles if the ship continues to travel at the same rate, how far would it travel in 11 hours
Based on the speed of the ship, after 11 hours, it would have travelled a distance of 264 nautical miles.
First find the speed of the ship:
= Distance / Time
= 72 / 3
= 24 nautical miles per hour
The distance in 11 hours is therefore:
= Time x Speed
= 11 x 24
= 264 nautical miles.
In conclusion, the ship would have travelled 264 nautical miles.
Find out more about speed at https://brainly.com/question/3004254.
Dan spends 1/4 of his wages on rent and 2/3 on food. If he makes £624 per week, how much
money does he have left?
Answer:
620.3 is my answer
Sana makatulong.
Mark me as Brainilest Answer. Thank you
pleaseee CAN YALL HALP ME
Answer:
see explanation
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180° , then
a = 180 - (90 + 28) = 180 - 118 = 62
b = a = 62 ( vertically opposite angles )
c = 180 - (90 + 62) = 180 - 152 = 28
Since a = b = 62 and c = 28
Then the triangles are similar by the AA postulate
Answer:
A=62 degrees
B= 45 degrees
C=45 degrees
Step-by-step explanation:
does anyone know this please?
Answer:
Im pretty sure what you have to do is add up the angles and subtract 360.
Step-by-step explanation:
Im not 100% though. good luck
2. Find the area of a square park whose perimeter is 320 m.
please answer this
Answer:
6400m^2
Step-by-step explanation:
6400 meters squared.
What is something plus 1/2 that gives you 4/6
it is 1/6 that is the anwser
Answer:
answer: 3/4
Step-by-step explanation:
help pls i’m slow :(((((((
Answer:
10ft
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
there is a 5 ft difference
* giving brainliest * Find the measure of the arc.
A
1469
E
B
MÁBC = [?]
