Answer:
t=5
Step-by-step explanation:
y represents height above the ground.
so when it touches the ground height above the ground =0
y=-16t²+80 t
it will hit the ground when y=0
-16t²+80t=0
-16t(t-5)=0
either t=0 or t-5=0
or t=5
t=0 gives initial value.(rejected)
t=5
solve x2 + 4x - 5 = 0 using quadratic formula
If A < B, where on the number line will A appear?
A. To the right of B
B. In exactly the same location as B
C. To the left of B
Evaluate the expression -3(n + 7) + 5 using n=5
Answer:
-31
Step-by-step explanation:
First you distribute
(-15-21)+5
Then you add and subtract from left to right.
-36+5
-31 is your answer
What is negative 2 1/6 minus negative 1 3/4?
What’s the slope pls answer quick
I WILL GIVE MAKE YOU BRAINLIEST TO WHOEVER ANSWERS FIRST.
1. 3(5-2h) + 9 = -30
Answer:
ℎ=9
Step-by-step explanation:
answer this asap and i will give u brainliest
Given g(x) = -2x+2 and f(x) = 3x2+4, find (g+f)(-3).
Answer:
-3x +8
Step-by-step explanation:
(- 2 x + 2 +3 x 2 + 4) (-3)
(x + 8) -3
-3x + 8
Answer:
2x^3+8x^2-3x-12
Step-by-step explanation:
The quotient of forty-three and a number m:
i need to know this pls help
3.) Graph on Geogebra the linear equation y=2x, then select the correct 10 points
line: *
O Blue line
Green line
Black line
Red line
- 2x - 9. FG - 3x - 12, and BG - 19. find the values of x, EF, and FG. The drawing is not to scale.
E
G
a
Oь
x=3. EF = 7. FG = 12
x = 8, EF = 25, FG = 36
x= 3, EF=-3, FG=-3
x= 8, EF = 7, FG = 12
Oc
Od
Ariel earns the same amount each week from tutoring. When she started this job, she had $100 in her savings account. The table shows Ariel's savings account balance for her first month of work.
let x represent the number of weeks Ariel has been working and let y represent Ariel's account balance. Which equation, expressed in Slope-Intercept Form, represents the amount of money in Ariel's bank account over time?
A. y=350x - 100
B. y=350x + 100
C. y=100x - 350
D. y= 100x + 350
Answer:
B
Step-by-step explanation:
The required line is y = 350x + 100 expressed in slope-Intercept form, which represents the amount of money in Ariel's bank account over time.
What is the Linear equation?A linear equation is defined as an equation in which the highest power of the variable is always one.
Let x represent the number of weeks Ariel has been working and let y represent Ariel's account balance.
As per the given table, take two points (0, 100) and (4, 1500)
This means that the line passes through points (0, 100) and (4, 1500).
Let the required line would be y - y₁ = (y₂ - y₁)/(x₂ -x₁ )[x -x₁]
x₁ = 0, y₁ = 100
x₂ = 4, y₂ = 1500
⇒ y - y₁ = (y₂ - y₁)/(x₂ -x₁ )[x -x₁]
Substitute values in the equation, we get
⇒ y - 100 = (1500 - 100)/(4 -0 )[x -0]
⇒ y - 100 = (1400/ 4)x
⇒ y - 100 = 350x
⇒ y = 350x + 100
Hence, the required line is y = 350x + 100 expressed in slope-Intercept form, which represents the amount of money in Ariel's bank account over time.
Learn more about the Linear equations here:
brainly.com/question/13738061
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Find the sum of 2ab and 9ab
Answer:
11ab
Step-by-step explanation:
2ab + 9ab = 11ab
true or false?
All whole numbers are irrational numbers
(5x10^7)+(1x10^6)
Answer is Scientific Notation
Answer:
5.1 × 10^7
look up scientific calculator :)
Janie wants to build a model using 1/2 inches cubes . how many 1/2inch cubes would she use to build a solid, cube shaped model with side lengths of 4 inches?
Answer:
you will need 8 cubes i think
Simplify 3(2+q)+15
Thank you
Answer:
3q + 21
Step-by-step explanation:
3(2+q)+15
6+3q+15
3q+21
Mrs. Smith gave a test with 30 questions, and Jim got 21 correct. What was Jim's score?
Answer:
70%
Step-by-step explanation:
21/30= 0.7
0.7 x 100 = 70
What is 2.49 x 10-2 written in standard form?
Answer:
2.29×10^1
Step-by-step explanation:
2.49 multiply with 10 and then minus with 2 and you will get 22.9 if you want it in standard form the answer will be 2.29×10^1
Select all the rational numbers. 3.02859...3 3.14159... 3.7¯ 1.41421...helpppp
Answer:
A rational number is a number that stops and doesnt go on forever and ever. Therefore the sequence of numbers would be no, yes, no, yes, yes
Any number that is a decimal that eventually stops is also rational but decimals that never end are irrational.
Step-by-step explanation:
All the numbers given here are rational numbers.
What is a rational number?"A rational number is a number that can be expressed as the fraction (p/q) of two integers, a numerator 'p' and a non-zero denominator 'q'."
The given numbers are 3.02859, 3, 3.14159, 3.7, 1.41421.
All the numbers here are rational numbers as they can be expressed as the fraction (p/q) of two integers.
Here, p = numerator, q = denominator(q ≠ 0).
Learn more about rational numbers here: https://brainly.com/question/13768738
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13. Evaluate: 7x + 4y when x=5 and y=-3
Answer:
13
Step-by-step explanation:
7x + 4y
7(5) + 4(-3)
25 -12
13
Answer:
23
Step-by-step explanation:
7*5=35
4*-3=-12
35+-12=23
Which one is different?
What is 5 1/9 + 3 7/9?
Answer:
8 8/9
Step-by-step explanation:
Rewriting our equation with parts separated
=5+19+3+79
Solving the whole number parts
5+3=8
Solving the fraction parts
19+79=89
Combining the whole and fraction parts
8+89=889
Answer:
i know she already answered and the points should go to her (also good job! ) but if you want it on
exact from then it's 80/9
decimal form is : 8.8
and mixed from is : 8 8/9
Halima wants to cover all of the wall with tiles. The tiles are squares with sides of length 20 cm. The tiles are sold in packs. There are 10 tiles in each pack. Each pack of tiles costs £34.99 Halima only has £1000. How much would it cost Halima to tile the whole wall?
Complete Question
Halima wants to cover all of the wall with tiles. The tiles are squares with sides of length 20 cm. The tiles are sold in packs. There are 10 tiles in each pack. Each pack of tiles costs £34.99 Halima only has £1000. How much would it cost Halima to tile the whole wall?
Length of the wall = 3m
Width of the wall = 4m
Answer:
£1049.70
Step-by-step explanation:
100cm = 1m
1 tile = 20cm
100cm÷ 20cm = 5
1m = 5 tiles
Width = 4m = 4 × 5 = 20 tiles
Length = 3m = 3 × 5 = 15 tiles
Total tiles needed = 20 tiles × 15 tiles = 300 tiles
Remember: 1 pack contains 10 tiles
10 tiles = 1 pack
300 tiles = 300/10= 30 packs
Note: 1pack costs £34.99
30 packs = 30 × £34.99= £1049.70
Halima needs £1049.70 to cover the wall with tiles
Mariana wants to attend Texas A&M. One year at Texas A&M costs approximately $28,000. She currently has $7,000 in savings. Mariana has received a one-time grant of $1,000 and an annual academic scholarship for $6,000. She plans to enroll in the work study program that will pay $10,000 annually for part-time work. How much will Mariana need to borrow in student loans in order to attend Texas A&M for 4 years?
Answer:
$58,000
Step-by-step explanation:
Total money that Mariana will generate:
Savings = $7,000
One-time grant = $1,000
Annual academic scholarship = $6,000
study program = $10,000/year
Study program for 4 years = $40,000
Total = $7,000 + $1,000 + $6,000 + $40,000
Total = $54,000
Total money that Mariana will generate for her 4 years = $54,000
Cost of fee at Texas A&M per year = $28,000
Cost of fee at Texas A&M for 4 years = 4*$28,000 = $112,000
Amount Mariana will have to borrow to attend Texas = $112,000 - $54,000
Amount Mariana will have to borrow to attend Texas = $58,000
Hence Mariana will have to borrow $58,000 in student loan to attend Texas A&M for 4 years
If I make $2 every 10 minutes how much will I make in 12 hours
Answer:
144$
Step-by-step explanation:
1. you make 12$ in an hour
2. do 12*12 to get how much you do in 12 hours
The length and breadth of a rectangle are 80cm and 15cm .find its perimeter and area of the rectangle
• Length of the rectangle = 80 cm
• Breadth of the rectangle = 15 cm.
To find :• perimeter and Area of the rectangle .
Solution :As we know that:
• perimeter of the rectangle = 2 ( l + b)
=> perimeter = 2 ( 80 + 15)
=> perimeter = 2 ( 95 )
=> perimeter = 190 cm .
• Area of the rectangle = l×b
=> Area = (80×15)
=> Area = 1200 cm² .
Hence , the perimeter of the rectangle is 190 cm and Area us 1200 cm².
I hope it will help you.
Regards.
I need help with these,I don’t know how to do it
Answer: 920485
Step-by-step explanation:
the math is simple math you see, when math is hard try your best and I know it makes no sense but, im telling you to quit so, sometimes in life you have to pull a fart and spread like water spreading away the correct answer is - ##########
Answer:use a protractor
Step-by-step explanation:
Johnnie runs 4.5 km everyday to stay in shape. It takes him 30 minutes to run his route. What is his average speed per hour?
Answer:
The average speed is 9 km per hour
Step-by-step explanation:
Average speed = total distance ÷ total time
Let us use this rule to solve the question
∵ Johnnie runs 4.5 km every day
∴ The total distance = 4.5 km
∵ It takes him 30 minutes to run his route
∴ Total time = 30 minutes
→ We need to change the time to hours to find the average speed in km/h
∵ 1 hour = 60 minutes
→ Divide the time by 60 to change it from minutes to hours
∴ Total time = 30/60 = 0.5 hour
∵ Average speed = distance ÷ time
∴ Average speed = 4.5 ÷ 0.5
∴ Average speed = 9 km/h
∴ The average speed is 9 km per hour
The graph above shows the amount an electrician charges for a job, depending on how long she works on the job. She charges a fixed amount for beginning the job plus an hourly fee. According to the graph, what is closest to the fixed amount the electrician charges for beginning a job?
Answer:I believe is $75
Step-by-step explanation:
If you see in the graph is between 50 and 100
50 divided by two is 25 which means
50+25=75