Answer:
Step-by-step explanation:
Given the rate at which the elevator travels modeled by the expression;
y = 30x where y is the height, in feet, and x is the number of seconds.
If the observatory in the John Hancock Center in Chicago is located in the top floor, 900 feet above the ground, we can calculate the time taken to reach the top floor by substituting y = 900 into the equation and solve for x as shown;
y = 30x
900 = 30x
Rearrange
30x = 900
Divide both sides by 30
30x/30 = 900/30
x = 30
Hence it takes 30seconds for the elevator to reach the top floor
what is 384,400 written in scientific notation plz hurry
i will award brainliest btw 20 points
4(x+3)=4x+12
Please help me
Answer: x = 3
Step-by-step explanation:
Can somebody help me please!!! asap!!
Answer:
The answer is B.
Step-by-step explanation:
Hope this helps! :)
What will the value of angle #2 be? Show your work.
Dilations increase the measure of angles. true or false
False.
Dialtions change the size of the figure but does not change the angles
Answer:
i think it is false
Step-by-step explanation:
Which number line best shows the position of 172
PLEASE SHOW WORK!!!!!!
Answer:
Sure thing!
For the first equation 6v+38≤ -4
The answer would be v≤-7
and for the second equation 2(v+3)≥-2
the answer would be v≥-4
Step-by-step explanation:
6v+38≤ -4
Subtract 38 from both sides
6v+38-38≤-4-38
Simplify
6v≤-42
Divide both sides by 6
6v/6≤-42/6
Simplify
v≤-7
SAME THING FOR THE OTHER
2(v+3)≥-2
Divide both sides by 2
2(v+3)/2≥-2/2
Simplify
v+3≥-1
Subtract 3 from both sides
v+3-3≥-1-3
And finally, simplify
v≥-4
PLEASE MARK AS BRAINLIEST
What is the equation of the line that passes through the point (8,1) and has a slope of -3/4 PLEASE HELP
Answer:
y = -3/4x + 7
Step-by-step explanation:
Given: m = -3/4
y = mx + b
(1) = -3/4(8) + b
1 = -6 + b
b = 7
Use m and b to form equation of line:
y = mx + b
y = -3/4x + 7
Answer: y = 7 over 10 x -8
Step-by-step explanation:The point we are given (0,−8) is the y-intercept (c). The clue for this is that the x-value is 0, which means the point lies on the y-axis.
Which of the following numbers is a composite number?
OA) 13
OB) 31
OC) 49
OD) 67
Step-by-step explanation:
First you will need to know what a composite number is.
A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Equivalently, it is a positive integer that has at least one divisor other than 1 and itself.
see pic below
I think it would be OC) 49
(Because that is a composite number.)
[tex]hopethis helps[/tex]
Show work pls What is the equation in slope-intercept form of the line that passes through the point (2, -2) and is perpendicular to the line represented by
y=2/5x +2 ?
Answer:
Step-by-step explanation:
the slope-International cept frome y= mx + b was where m is the slope and b y-intercept
y=mx +b
m= -2/5
b=2
slope is :2/5
y-intercept is :2
x. y
0. 2
1 8/5
Answer:
Step-by-step explanation:
perp. -5/2
y + 2 = -5/2(x - 2)
y + 2 = -5/2x + 5
y = -5/2x + 3
You have $65.00 in birthday money and want to buy some CDs and a DVD.
Suppose a DVD cost $15.00 and a CD cost $12.00. Write an inequality to find
out how many CDs you can buy along with one DVD. Solve the inequality.
Answer:
1 dvd and 4 cds
Step-by-step explanation:
If you have $65.00 and 1 dvd costs $15.00 that leaves you with $50.00 and each CD costs $12.00 just multiply by 12s until you get to 50 or close so there you can buy 4 CDs and have 2$ left.
E = hf − w
w = ?
manipulate the equation.
Answer:
the answer should be w=-E/hf
if it not plz tell me so i can edit my answer
Step-by-step explanation:
Hope this helps❤️
Answer:
hf-E
Step-by-step explanation:
I took the test
3 multiplied by what equals 4.5
Answer:
3 multiplied by 1.5 equals 4.5
Step-by-step explanation:
3*x= 4.5 We can do division
3x/3 = 4.5/3
x = 1.5
3 multiplied by 1.5 equals 4.5
Hope this helps!
A toy car accelerates from rest(m/s) to a velocity of 4.3 m/s. It does this over a time of 4 seconds. What is the car's acceleration?
answer
Do not include units in your answer. Round all answers to 2 decimal plases if possible
Answer:
Step-by-step explanation:
+5 pts
Which sample of water has the most thermal energy?
O A. A 0.5 kg sample at 1°C
O B. A 1.5 kg sample at 10°C
O C. A 1 kg sample at 10°C
O D. A1 kg sample at 4°C
Ask q87d9d4hai about this question...
Answer +5 pts
Which sample of water has the most thermal energy?
O A. A 0.5 kg sample at 1°C
O B. A 1.5 kg sample at 10°C
O C. A 1 kg sample at 10°C
O D. A1 kg sample at 4°C
Ask q87d9d4hai about this question...
Answer
0 17 answers
287 people helped
Answer:
THE ANSWER IS #A
Explanation:
0
rhsg7wugwyehehhehe
17 answers
287 people helped
Answer:
Answer:
Step-by-step explanation:
the answer is dirroeah
please help guys, i’m so lost aaahhhh
Consider a geometric sequence with a first term of 4 and a fourth term of -2,916.
a. find the common ratio of this sequence.
b. find the sum to infinity of this sequence
Answer:
Step-by-step explanation:
4r³=-2916
r³=-729
r=-9
b)s=[tex]\frac{4}{1+9}[/tex]
=[tex]\frac{4}{10}[/tex]
=[tex]\frac{2}{5}[/tex]
Please Help!
for a new neighborhood, 100 acres of land will be split into 10 lots. how many acres of land will each lot have?
Each lot will have 10 acres of land.
What is an expression?An expression contains one or more terms with addition, subtraction, multiplication, and division.
We always combine the like terms in an expression when we simplify.
We also keep all the like terms on one side of the expression if we are dealing with two sides of an expression.
Example:
1 + 3x + 4y = 7 is an expression.
3 + 4 is an expression.
2 x 4 + 6 x 7 – 9 is an expression.
33 + 77 – 88 is an expression.
We have,
To find out how many acres of land each lot will have, you can divide the total amount of land (100 acres) by the number of lots (10).
So,
= 100 acres ÷ 10 lots
= 10 acres per lot
Therefore,
Each lot will have 10 acres of land.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ3
Which of the following completed the rule for this translation, (x,y) ―> (x+4,___)
- y+4
- y+2
- y-4
- y-2
y+4
The points y axis is increased by +4 if you look a the graph.
Can someone please help
Answer:
I would say 0 if you add it all to be honest, but I’m not TOO aware- Hope this helps at least a bit!
Step-by-step explanation:
What is the answer of 10-squareroot of 4 divided by 2
Answer:
10
Step-by-step explanation:
sqrt(4)=2
2/2=1
10×1=10
Simplify the expression. 1.7 – 2.7 – 1.34 + 4.9 – 1.48
please explain I'm lost
Answer:
Step-by-step explanation:
1.7 - 2.7 - 1.34 + 4.9 - 1.48
First we can group the positive and negative numbers
1.7 + 4.9 - 2.7 - 1.34 - 1.48
add the positive numbers then add the negative numbers
1.7 + 4.9 becomes 6.6
-2.7 - 1.34 - 1.48 becomes - 5.52
Now add both the answers
6.6 + (- 5.52) = 1.08
Hope this helps
Plz mark as brainliest!!!!!!!!
Find g(3), given that g is a linear function with g(1)=-2 and g(4)=8
Answer:
14/3
Step-by-step explanation:
linear equation slope passing (1,-2), (4,8)= 8-(-2) / 4-1 = 10/3
g=10/3 x +b, substitute (1,-2) to solve b
-2=10/3 (1) +b, b=-16/3
thus, g=10/3 x - 16/3
when x=3, g=14/3
right so its saying im wrong so witch number is the biggest
32 286
19 682
20 318
32 665
22 382
i put the top one but appearnly its wrong it probs me being stupid i dont know please help 10 points avabile
Answer:
682 is the biggest number but if it is talking about the two numbers added then it is 19 and 682
Edit: If there is supposed to be a comma in-between the two pairs of numbers then the answer would be 32,665. I didn't think they could have been commas at first but if they are then 32,665 is the answer.
Step-by-step explanation:
682 is bigger than all the others. 19 + 682 is bigger than all the other paired ones.
Are x(3x) and 4x equivalent?
Answer:
no, not at all
Step-by-step explanation:
you apply the distributive property. x times 3x equals 3x^2 which is different from 4x.
The mass of a toy spoon is 8 grams, and its volume is 2 ml. What is the density of the toy spoon?
HELP ILL GIVE MANY POINTS
Answer:
4
Step-by-step explanation:
D=m/v
D= 8/4
D=2
Hope this helps!!
Answer:
4
Step-by-step explanation:
Please help me ASAP, I don't have much time!
Answer:
x= - 3
Step-by-step explanation:
21x-4=-67
21x=-63
F(x)=2x+8 g(x)=x+4 find f+g,f-g,fg,f over g
Im a little stuck. I would appreciate the help..
Answer:
3+1/2n
Step-by-step explanation:
3 more of technically means +3 and 1/2 of n would be 1/2n so just put them together
Please help.................................................................................................
Answer:
Step-by-step explanation:
L = 3*w + 1 Given
P = 2*(L + w) Formula for Perimeter. Substitute for L
P = 2*(3w + 1 + w) Combine
P = 2*(4w + 1)
P = 58 Given
58 = 8w + 2 Remove the brackets
58 - 2 = 8w Subtract 2
56 = 8*w Divide by 8
56/8 = w
7 = w
================
Find L
L = 3*w + 1
L = 3*7 + 1
L = 22
================
Check
2L + 2W = 58
2*22 + 2*7 =? 58
44 + 14 = ? 58
58 = 58
The answer checks.
With the equation 3z + 3 = 22 + 6, the value of z is
The sum of five consecutive even integers is 220. Find the middle value of the five consecutive integers.
Answer:
44Step-by-step explanation:
If we have odd number of consecutive numbers increasing by the same value (2) then the middle value of them is their mean:
220:5 = 44
Of course you can find them to be sure:
Consecutive even integers increase by 2.
So if 2x is the smallest of them (x is an integer), then the numbers are:
2x, 2x+2, 2x+4, 2x+6, 2x+8
So their sum: 10x+20
10x + 20 = 220 ⇒ 10x = 200 ⇒ 2x = 40
So the numbers are: 40, 42, 44, 46, 48
Answer:
44
Step-by-step explanation:
