THe correct option is the 3rd option
which expression has a value of 50
Answer:
b
Step-by-step explanation:
(50 +10) / ( 5+5)
3. REI.b4_Part A. A toy cannon ball is launched on top of a platform. The
equation h(t) =-8t +18t +6 gives the height, h in meters, of the ball t seconds
after it is launched. What equation can be used to tell whether the ball reaches
the height of 10 meters? *||
A. -8t^2 +18t +6 =0
B. -8t^2 +18t +6 =-10
o
C.-8t^2 +18t +6 = 12
o
D. -8t^2 +18t +6 = 10
Answer:
The correct option is;
D. -8·t² + 18·t + 6 = 10
Step-by-step explanation:
The given equation of the height toy cannon launched on top of a platform is given as follows;
h(t) = -8·t² + 18·t + 6...(1)
Where "h" represents the height in meters, at time "t" seconds after the ball is launched
When the height is 10 meters, we can write as follows;
The height of the ball, h(t) = 10
Therefore, by substituting the value of h(t) in equation (1), h(t) = -8·t² + 18·t + 6, when h(t) = 10 we get;
-8·t² + 18·t + 6 = 10.
The percent decrease of an item that dropped in price from $50 to $43 is what ?
a. 7%
b. 14%
c. 43%
d. 86%
Answer:
B. 14%
Step-by-step explanation:
To find the percent decrease, find the difference between the two prices then divide it by the original price:
50 - 43 = 7
7/50
= 0.14
So, the percent decrease is B, 14%
Mike can pick 50 strawberries 5 minutes. How many can Mike pick in one minute?
Answer:
10 strawberries
Step-by-step explanation:
If Mike can pick 50 strawberries in 5 minutes then it is safe to assume that for 1 minute, Mike can pick 10 strawberries since you divide 50 by 5 in which Mike can pick a strawberry for every 6 seconds.
Which is equivalent to the expression (2m^5n^4)^3?
A - 8m^15n^12
B - 6m^15n^12
C - 8m^8n^7
D - 5m^8n^7
What is the solution to 4 x + 6 less-than-or-equal-to 18?
Answer: x more-than-or-equal-to 3
Step-by-step explanation:
Which is the largest of these fractions?
Answer:
6/11
Step-by-step explanation:
it is the only fraction that is over 0.5 as a decimal
Help with this please
Answer:
D
Step-by-step explanation:
Domain & Range is just x and y.
the function includes x values between & including -2 and 2, while y includes 3, and -3
Pedro and Carmela are cleaning their kitchen. It takes Pedro 3 hours to clean the kitchen by himself, while Carmela can clean the kitchen in 2 hours.
Which equation can be used to calculate how long it will take them to clean the kitchen if they work together?
A.3/2t=t
B.t/3+t/2=1
C.3/t+2/t=1
D.3t+2t=1
Answer:
B
Step-by-step explanation:
Here, we want to choose the equation representing the time it will take if they worked together
Let the amount of tasks to be done be t
pedro will work at a rate of t/3
Camela will take t/2
So the joint rate will be
t/2 + t/3
This joint rate will be equal to 1
Thus, we have
t/2 + t/3 = 1
ASAP need help giving 30 points
Answer:
10
Step-by-step explanation:
the radius is from center out.
Answer:
I think it's 10.
Step-by-step explanation:
multiply 2 x (-21) x 7
property name for 19+63=63+19
*URGENT* I NEED HELP WITH ALL MY QUESTIONS PLEASE
Answer:
I don't know
5000x0.75+3000 should give you your answer. I think it's the 3rd one because 0.75+3000=3000.75.
PLEASE HELPPP i’ll give brainliest
determine if the sequence below is arithmetic or geometric indeterminate the common difference/ratio and simplest form 17, 13, 9
Answer:
It is an arithmetic sequence
Common difference is -4
Step-by-step explanation:
Here, we want to determine the type of sequence
As we can see, the difference between each of the terms is as follows;
13-17 = 9-13 = -4
What this mean is that we have a constant common difference
This simply shows that the sequence we have is an arithmetic sequence
The common difference is thus;
13-17 = 9-13 = -4
If triangle DEF is congruent to triangle GJH, find each missing angle?
Answer
<F = 105°
<G = 41°
<J = 34°
GJ = 19m
JH =14m
GH = 16m
Step-by-step explanation:
Since triangle DEF is congruent to triangle GJH, the following are true
<D = <G
<E = <J
<F = <H
Given
<H = 105°
Hence <F = 105°
Also <E = 34° =<J
From ∆GHJ
<G+<H+<J = 180°
<G+105+34 = 180°
<G + 139 =180
<G= 180-139
<G = 41°
Get the sides. For the sides, the following are true
DE = GJ = 19m
Also EF =JH = 14m
DF =GH = 16m
What is percentage increase
Answer:
The concept of percent increase is basically the amount of increase from the original number to the final number in terms of 100 parts of the original. An increase of 5 percent would indicate that, if you split the original value into 100 parts, that value has increases by an additional 5 parts.
A washer and dryer cost a total of $960. The cost of the washer is three times the cost of the dryer. Find the cost of each item.
Cost of washer:
Cost of dryer:
Cost of washer: $720
Cost of dryer: $240
I've taken this test before and got it right, so you're good :)
FIRST ONE TO GIVE ME A CORRECT ANWSER GETS BRAINLIEST
Answer:
multiply by 5, t = 14.5
Step-by-step explanation:
t/5 = 2.9 (multiply each side by 5)
t = 14.5
Carmen purchased a prepaid phone card for $30. Long distance calls cost 19 cents a minute using this card. Carmen used her card only once to make a long
distance call. If the remaining credit on her card is $26.39, how many minutes did her call last?
Answer:
19
Step-by-step explanation:
30-26.39=3.61
3.61 divided by 0.19 = 19
hope this helps :)
write 0.1 as a fraction
Answer:
1/10
Step-by-step explanation:
Answer:
1/100
Step-by-step explanation:
I hope this is right :l mmmmmmmmmmmmmmmmmm
We travel 325 miles in 5 hours. What is the unit rate?
Answer:
65 miles per hour.
Step-by-step explanation:
To find the unit rate, we need to figure out how far we travel in one hour.
325/5 = 65/1
We travel 65 miles in one hour.
Answer:
65 mph (miles per hour)
Step-by-step explanation:
Because unit rate is a rate where the second quantity is one unit.
And to find miles per hour in this equation you have to divide 325 miles by 5 (because it is 5 hours) and you get 65.
Have a wonderfull day/ night! I hope this is helpful to you.
10x + 4y = 24 6x +12y = 48 What is the value of y? *
A. 7
B. 7/2
C. 1
D. -7/2
Answer:
B
Step-by-step explanation:
1) lets use elimination to solve this:
multiply 10x+4y=24 with 3 in order to get "4y" into "12y"
3(10x+4y=24)
30x+12y=72
now subtract both equations to eliminate 'y"
30x+12y=72
-
6x+12y=48
---------------------
24x=24
x=1
now substitute 1 in the above equation:
6(1)+12y=48
6+12y=48
12y=42
y=7/2
The ratio of boys to girls that went to great American on the 8th grade trip was 3 to 5 period if there were 320 students that went to great American, how many were girls??
Answer:
90
Step-by-step explanation:
you put 90
You were charged interest of $6.31 for Purchases (near section 8). Why?
Answer:
B
Step-by-step explanation:
You had a balance of $535.07 from the previous month and only paid $450.00 so you didn’t pay off your balance in full.
What is the x coordinate of the solution to the system of equations?
{ x- 5y =23
{ -2x - 6y =2
Answer:
The x coordinate of the solution to the system of equations is 8
Step-by-step explanation:
We need to find the x coordinate of the solution to the system of equations?
[tex]x- 5y =23\\-2x - 6y =2[/tex]
Let
[tex]x- 5y =23--eq(1)\\-2x - 6y =2--eq(2)[/tex]
Multiply equation 1 with 2 and add both equations
[tex]2x- 10y =46\\-2x - 6y =2\\-------\\-16y=48\\y=\frac{48}{-16}\\y=-3[/tex]
So, we get the value of y = -3
Now, for finding x, put value of y in equation 1
[tex]x- 5y =23Put\:y=-3\\x-5(-3)=23\\x+15=23\\x=23-15\\x=8[/tex]
So, we get x = 8
The solution set is (8,-3)
So, the x coordinate of the solution to the system of equations is 8
f. Rotated 90° about (0,0)
clockwise
R (2, -1) R ( , )
S (4.0) S ( , )
T (1,3) T ( , )
PLEASE ANSWER!!!
Answer:
see explanation
Step-by-step explanation:
Under a clockwise rotation about the origin of 90°
a point (x, y ) → (y, - x ) , then
R(2, - 1 ) → R'(- 1, - 2 )
S(4, 0 ) → (0, - 4 )
T(1, 3 ) → T'(3, - 1 )
Which solution set is graphed on the number line?
O x21
O x>1
0x<1
O x51
Answer:
x < 1
Step-by-step explanation:
x is less than 1, we can see
we have an open circle, so x is only less than 1
it does not include 1
so answer is x < 1
On some days, Jardon travels from home directly to his
work. On other days, Jardon visits with his friend on his way
to work.
Approximately how much farther would Jardon travel by
walking from his home to his friend's house and then from
his friend's house to work than he would travel by walking
from his home directly to work?
Using the Pythagorean Theorem, it is found that he would travel 92 miles farther by walking from his home to his friend's house and then from his friend's house to work than he would travel by walking from his home directly to work.
The Pythagorean Theorem states that, on a right triangle, the length of the hypotenuse squared is the sum of the length of each leg squared, that is:
[tex]h^2 = l_1^2 + l_2^2[/tex]
Walking from his home to his friend's house and then from his friend's house to work, Jardon travels 240 + 120 = 360 yards.
Directly from his home to work, the distance is the hypotenuse of a right triangle with legs [tex]l_1 = 240, l_2 = 120[/tex], hence:
[tex]d^2 = 240^2 + 120^2[/tex]
[tex]d = \sqrt{240^2 + 120^2}[/tex]
[tex]d = 268[/tex]
360 - 268 = 92
He would travel 92 miles farther by walking from his home to his friend's house and then from his friend's house to work than he would travel by walking from his home directly to work.
You can learn more about the Pythagorean Theorem at https://brainly.com/question/654982
how many centimetres are there in a metre
Step-by-step explanation:
your answer is 100 metres