Answer:
D
Step-by-step explanation:
Because the other just make no sense
For which graph is the parent function y= x2?
Answer: Well, it’s obviously not the first one. But if you could scroll down, so I could see the other graphs, that would be amazing. It would also help me answer the question!
Answer:
option a
Step-by-step explanation:
edg
A model rocket is launched off the top of a platform. The height of the rocket is given by the function h(t) = -4.9t2+ 86t + 2.1, where h(t) is the height in meters and t is the time in seconds. When will the rocket's height be 200m?
Answer:
t = 14.82 and 2.72secs
Step-by-step explanation:
Given the function of the rocket height expressed as;
h(t) = -4.9t^2+ 86t + 2.1
if the rocket height is at 200m, then;
200 = -4.9t^2+ 86t + 2.1
multiplying through by 10
2000 = -49t^2 + 860t + 21
49t^2 - 860t - 21 + 2000 = 0
49t^2 - 860t + 1979 = 0
Factorize
t = 860±√(860)²-4(49)(1979)/2(49)
t = 860±√739,600-387,884/98
t = 860±√351,716/98
t = 860±593.06/98
t = 860+593.05/98 and 860-593.05/98
t = 1,453.05/98 and 266.94/98
t = 14.82 and 2.72secs
These are the times
Which ordered pairs are solutions to this system of inequalities?
9514 1404 393
Answer:
c, d, e
Step-by-step explanation:
The first two listed points are not in the solution set. The remaining three are.
__
Any point in the doubly-shaded area, or on the solid boundary line of that area is part of the solution set. Points (-1, -6), (0, -5), and (0.5, -2) are solutions to the given inequalities.
48 > -6x
A. X > -8
B. X > 54
C. X < -8
D. X < 54
Answer:
The answer is C.
Step-by-step explanation:
First divide both sides by -6.
48/-6 > x/-6
Remember, you switch the signs if you are dividing by a negative number.
The final answer will be x<-8.
Hope this helps!
help help help plssssss
Answer:
SA = 108π cm²
Step-by-step explanation:
The surface area (SA) of a sphere is calculated as
SA = 4πr² ( r is the radius )
Thus the SA of a hemisphere is
SA = [tex]\frac{1}{2}[/tex] × 4πr² = 2πr²
The area of the circular base = πr²
Then total SA is
SA = 2πr² + πr² = 3πr² = 3π × 6² = 3π × 36 = 108π cm²
How many pounds of walnuts that cost $0.80 per pound must be mixed
with 8 pounds of cashews that costs $1.25 per pound to make a mixture of
nuts that costs $1.00 per pound?
Answer:
kt 5.20 yes
Step-by-step explanation:
5.20
Step-by-step explanation:
find the area of the figure below:
Answer:
104 ft^2
Step-by-step explanation:
Answer:
104 ft²
Step-by-step explanation:
you can solve this multiple ways, one way is: find the area of the big rectangle and subtract from it the area of the small rectangle
big rectangle
A big = 8 * (5+6+5)= 8 * 16 = 128 ft²
small rectangle
Asmall = 4*6 = 24 ft²
area of the shape
Abig -Asmall = 128-24 = 104 ft²
0.39+0.11= adding decimals
In Ellen's math class, there were 2 boys to every 3 girls. Which of the following could be the ratio of girls to boys in the class? As a fraction
Answer:
A . 17/21
B . 14/21
C . 7/14
D. 11/17
Step-by-step explanation:
Answer:
Answer is B: 14 to 21
Step-by-step explanation:
The ratio "2 to 3" was multiplied by 7 to get this ratio. All the other following are incorrect.
Using the least common denominator rename 3/5 and 1/20
Answer:
12/20 and 1/20.
Step-by-step explanation:
The least common denomiator between 3/5 and 1/20 is 20.
For the first equation, we multiply the numerator and denominator by 4 to get 12/20.
The second equation's denominator is already 1/20, so we can leave it as is.
The final answer is 12/20 and 1/20.
Monty is working on a formula to determine the amount of profit (P) he will make when he sells his pottery. He has already spent $50 on materials and plans to sell each pot for $5. If x represents the number of pots he sells, which formula represents Monty's profit from his sales?
Answer:
P=5x-50
Step-by-step explanation:
Profit is represented by P.
$5 is what Monty plans to sell each pot for and x represents how many pots he sells.
therefore 5x-50=P
After Charlie ate 2/3 of the remaining cake, he divided the rest equally among his 3 friends. What fraction of the pan of cake did each friend get? Write an expression and show all of your work.
Answer: 1/9 of the cake
Step-by-step explanation:
Charlie ate 2/3 of the cake which means that what is left to give the friends is:
= 1 - 2/3
= 1/3 of the cake
This was divided equally amongst three friends so the expression would be:
= 1/3 ÷ 3
This can also be written as:
= 1/3 * 1/3
= 1/9
Each friend got 1/9 of the cake.
Answer:
1/9 of the cake
Step-by-step explanation:
1 - 2/3 = 1/3 left
(1/3) / 3 = 1/9 = what each friend got
In one fell swoop we have ( 1 - 2/3) / 3 = 1/9
can someone explain how to get the answer for the following question ?
Find the coordinates of the point of intersection of the parabola y = 3x^2 - x - 7 and the line y = 5x - 10
the answer is (1,-5) if you need it just explain how to get it !!
Please help!!!!
Will give out brillianst!!!
Answer:
A, C, D
A function can’t have repeating x-values. Each assigns exactly one range (y-value) to each domain (x-value)
FOR PART A
Step-by-step explanation:
Line r is parallel to line c.
Which angle is congruent to < 3
A. <2
B. <4
C. <5
D. <6
Answer: C. <5
Explanation: They are on the same line meaning that they should share the same degree of angle, especially because they are opposite sides of the same line.
Please help with this question if you can
Answer:
5.1
Step-by-step explanation:
so the leaning ladder makes a right angled triangle so we can use pythagoras to calculate the the length (the hypotenuse):
5²+1²=x²
25+1=x²
√26=x
x=5.099...
and now we round to one d.p so it becomes 5.1 (1 d.p) as the hundreths digit is 9 and 9 is rounded up.
Find the measure of angle A. Round your answer to the nearest whole number
Answer:
∠ A ≈ 53°
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan A = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{BC}{AC}[/tex] = [tex]\frac{12}{9}[/tex] , then
∠ A = [tex]tan^{-1}[/tex] ([tex]\frac{12}{9}[/tex] ) ≈ 53° ( to the nearest whole number )
Find the surface area of the prism
Answer:
330
Step-by-step explanation:
The prism is a triangular prism
9 * (12 + 5 + 13) + (2 * 30)= 330
30 being the base area
Answer:
330
Step-by-step explanation:
We can break each surface area into it pieces.
For the squares:
9x13=117
9x5=45
9x12=108
For the triangles:
12x5÷2=30
12x5÷2=30
Add all of those together to get the total square area, which is
330
help me please.!!!..
Answer:
m = 3
Step-by-step explanation:
Answer:
m=3
Step-by-step explanation:
which fraction equals - 9/16? mark all that apply.
Please help me and actually give me the answer please
Answer:
Coin flip: 29 times
Blue spinner: 15 times
Standard cube: 18 times
Step-by-step explanation:
50% chance of head/tails, 58 x 0.5 = 29 times it will probably land on heads
60 spins/4 colors = 15 times likely each color
1,3,5 are odd, out of 6 numbers on a cube, so 50% chance, 36 x 0.5 = 18 times
Show what you know: Exponents
Find the missing exponent exponent.
32 = 2?
? =
I am giving away points if you answer this Question
What is 2+2
Jennifer babysat for 6 hours and earned $52.50.
divide what is her hourly rate?
Answer:
$8.75
Step-by-step explanation:
52.50/6=8.75
To make sure that is correct
8.75×6
Answer:
Her hourly rate is $8.75
Step-by-step explanation:
Does anyone know?...
Answer:
NOPE
Step-by-step explanation:
I rly rly rly rly rly rly rly rly rly rly rly need help for sum reason
Answer:
6*5=30 units
Step-by-step explanation:
Brainliest?
15 points, I will give the brain award thing if u answer correctly. A triangle has sides with lengths of 2x - 9 ,5x - 3 and 2x -2. What is the perimeter of the triangle?
If you can buy 3 packs of soda
for $6.00, how much will 4 packs of
soda cost
Answer:
it will be 8 dollars
Step-by-step explanation:
so each pack is two dollars and just add two
A, B & C form the vertices of a triangle.
∠ CAB = 90°, ∠ ABC = 73° and AB = 9.4
Answer:
cos37= 9.4/BC,cos37=0.8
BC= 9.4/0.8
bc = 11.75
Answer:
BC ≈ 32.2
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos73° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{AB}{BC}[/tex] = [tex]\frac{9.4}{BC}[/tex] ( multiply both sides by BC )
BC × cos73° = 9.4 ( divide both sides by cos73° )
BC = [tex]\frac{9.4}{cos73}[/tex] ≈ 32.2 ( to 3 sf )
What is the perimeter?
Help plz... And
No links
I repeat No links!!
Answer:
the perimeter is 25 miles
Answer:
30 mi
Step-by-step explanation:
This is a right triangle, so the Pythagorean Theorem applies:
13^2 + x^2 = 12^2, or
x^2 = 25 and x = 5.
The perimeter is the sum of the dimensions of this triangle:
12 mi + 5 mi + 13 mi = 30 mi