Step-by-step explanation:
1. 3a2 + 4
3(-4)2+4
=-24+4
=-20
2. 2a3
2(-4)3
= (3)(−4)(3)
= −36
A ramp for wheelchair access to the gym has a slope of 5% (that is, the ramp rises 5 feet vertically for every 100 feet of horizontal distance). The entire ramp is built on level ground, and the entrance to the gym is 2 feet above the ground. What is the horizontal distance, in feet, between the ends of the ramp? a 4 b 10 c 40 d 100 e 400
Answer:
C 40
Step-by-step explanation:
Using proportions, it is found that the horizontal distance, in feet, between the ends of the ramp is:
c 40
This question is solved by proportions, using a rule of three.The slope of 5% means that when the vertical distance rises by 5 feet, the horizontal distance changes by 100 feet.What is the horizontal distance for a vertical distance of 2 feet?The rule of three is:
5 feet V - 100 feet H
2 feet V - x feet H
Applying cross multiplication:
[tex]5x = 200[/tex]
[tex]x = \frac{200}{5}[/tex]
[tex]x = 40[/tex]
Hence, 40 feet, option c.
A similar problem is given at https://brainly.com/question/24372153
PLS HELP!!look at image!!
9514 1404 393
Answer:
C. D"(0, -1)
Step-by-step explanation:
The attachment shows the two transformations. The original figure is in quadrant III, so rotating it 270° CCW will put the first image in quadrant II. Translating it down and right will move most of it to quadrant IV.
As you can see in the attachment, the location of D" is now (0, -1).
5)Trevon's school is selling tickets to the annual dance competition. On the first day of ticket sales
the school sold 5 senior citizen tickets and 8 student tickets for a total of $94. The school took in
$164 on the second day by selling 10 senior citizen tickets and 13 student tickets. Find the price
of a senior citizen ticket and the price of a student ticket
Answer:
$8 for student tickets and $4.40 for senior tickets
Step-by-step explanation:
10 (5x +8y=94)
5 (10x +13y=164)
50x+80y=940
- 50x +65y=820
80y-65y= 940-820
15y= 120/15
y=8
(y is the cost of student tickets)
5x+8y=94
5x+8(9)=94
5x+72=94-72
5x=22/5
x= 4.4
PLEASE HELP!
What additional information is needed to prove that the triangles are similar?
Answer:
MN = 6 and X =17.5
Angle Z
Step-by-step explanation:
did it on edge jan 2021
Chris bought 12.4 gallons of gasoline. There are approximately 3.8 liters in 1 gallon. Which measurement is close to the number of liters of gasoline Chris bought? pls show work as well thank you!
Answer:
There are 47.12 liters in 12.4 gallons of gasoline.
Option C is correct option.
Step-by-step explanation:
Total Gasoline bought = 12.4 gallons
We are given:
1 gallons = 3.8 liters
So.=, we need to find how many liters in 12.4 gallons of gasoline
1 gallon = 3.8 liters
12.4 gallon = 3.8*12.4
= 47.12 liters
So, there are 47.12 liters in 12.4 gallons of gasoline.
Option C is correct option.
A potted tree weighs 21 pounds. The pot weighs 3 pounds. If w represents the weight of the tree without the pot, write an equation to find the weight of the tree without the pot.
What percent of 47.9 is 11?
Answer:
about 23% I think
Step-by-step explanation:
I'm not really sure how to get to this though besides just plugging it into your calculator
Answer:
11 is about 23% of 47.9.
Step-by-step explanation:
Do 11 ÷ 47.9 and round it. It is 23%.
What were the effects of the Sugar Act? check all that apply.
Answer:
A,B,E is the answerStep-by-step explanation:
Your welcome : )
Need a bit of help !
Answer:
-1/4
Step-by-step explanation:
the slope of the given line is -1/4
if lines are parallel they have the same slope so the slope of every paralel line to the given line is -1/4
Please help and show work
Answer:
.
Step-by-step explanation:
Algebra 1 Function notation
Answer:
-6
Step-by-step explanation:
f(0) = 12^0 - 7
1 - 7 = -6
help please!!! :((((((
Answer: 2000
Step-by-step explanation:
They started counting the population after the year 2000 meaning that in 2000 they had an initial count .
What is the constant of proportionality in this graph?
Answer:
one half or 1/2
Step-by-step explanation:
do your rise over your run on the graph.
4. The graph shows a proportional relationship between the number of hours an
employee works and the amount of money earned in that time.
Employee's Hours
and Earnings
Eamings ($)
200
1HO
160
140
120
100
80
60
40
20
0 1 2 3 4 5 6 7 8 9 10
Number of Hours
Part A
Complete the statement to describe the meaning of the point shown on the graph.
Answer: The employee makes $
in
hour(s).
Part 8
Complete the equation that represents this situation.
Answer:y
Answer:
the answer is the first one your welcome
A woman traveled 2439.3 miles in 18 hours 5 minutes. Find the average speed of her flight in miles per hour. (Change 18 hours 5 minutes into hours and use the formula d = it.)
The average speed of the woman's flight was mph.
Answer:
19 hours 20 minutes
Step-by-step explanation:
The temperature of one furnace is 1,400°C and cools at a rate of 25°C per minute. The temperature of another furnace is 1,200°C and is heated at a rate of 15°C per minute. After how many minutes will the furnaces be the same temperature?
NEED ANSWER NOW
Answer:
5 minutes
1400-25x =1200+15x
x= 5
hope that help, you can draw my attention in the comment section if you don't understand
What is the positive solution for (x-4)(x+5) = 0
Answer:x=4
Step-by-step explanation:
You can split this up into two equations
x-4=0
x+5=0
To solve each:
x-4=0
Add 4 to each side
x=4
------------
x+5=0
Subtract 5 from each side
x=-5
So your two solutions are -5 and 4 but you want the positive one so the answer is x=4
45 touchdowns in 15 games unit rate
Answer:
3
Step-by-step explanation:
45/15 = 3
There are 3 touchdowns per 1 game
solve least to greatest 5/9,1/3,8/16,1/4
Answer:
1/4,1/3,8/16,5/9
Step-by-step explanation:
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Which of the following is a square root of 3 (cosine (StartFraction 4 pi Over 9 EndFraction) + I sine (StartFraction 4 pi Over 9 EndFraction) )?
Answer:
D
Step-by-step explanation:
edge
Answer:
D
Step-by-step explanation:
just finished test
bob is having a cookout. he bought 6 liters of sellers water. how many full 1 pint of sellers water can he pour?
Answer:
192 servings
Step-by-step explanation:
18)
i have to find the distance
Answer:
can you show us the problem
A keyboard that costs $400 is marked down 10% for a sale. What is the sale price of the keyboard?
Which equation represents the line that passes through the point (10, 1) and is perpendicular to the graph of 2x – y = 7?
Use the GCF and the distributive property to find the expression that is equivalent to 18+27.
Answer:45
hav a terrible Christmas!
hi can someone please help me I think the answer is b, but I think I am wrong. will give brainliest
Answer:
b
Step-by-step explanation:
CAN SOMEONE PLEASE HELP ME I'LL GIVE YOU BRAINLIEST
Answer:
x = 25
Step-by-step explanation:
From the given picture,
In ΔMLN,
m∠NML + m∠MLN + ∠LNM = 180°
61° + 39° + m∠LNM = 180°
100° + m∠LNM = 180°
m∠LNM = 180° - 100°
m∠LNM = 80°
If JK║MN and JN is a transverse intersecting these parallel lines at N and J,
∠LNM ≅ ∠LJK [Alternate interior angles]
(3x + 5)° = 80°
3x = 80 - 5
3x = 75
x = 25
Which two of the following numbers have the same value?
3 to the power of 3 and 4 to the power of 2
4 to the power of 2 and 5 to the power of 2
4 to the power of 3 and 8 to the power of 2
Answer:
c is the correct ans
Step-by-step explanation:
hope it helps
Step-by-step explanation:
4 to the power of 3 and 8 to the power of 2.
Solve for y.
2y + 3y =30
Simplify your answer as much as possible.
(Im pretty stupid 0-0)
Answer:
y = 6
Step-by-step explanation:
2y + 3y = 30
Add like terms, as in same variable
5y = 30
divide both sides by 5, because u want to solve for y not 5y
y = 6
Erin's family has completed 70% of a trip. They have traveled 35 miles.
How far is the trip?
Answer:
Their trip is 50 mile long.
Step-by-step explanation:
I first divided 70 by 35 to get two.The two represents 1 mile = 2%. So then I subtracted 70 from 100 to get 30 then I divided 30 by 2 to get 15. Then I added 15 to the original 35 to get 50 miles for their 100%/destination of their trip. Hope this helps! Have a great day!