Answer: A= 8
B= False
C= False
D= True
Step-by-step explanation:
Starting at time t = 0, the altitude of one helicopter is given by A1 = 600 + 150t, and the altitude of a second helicopter is given by A2 = 1250 + 50t. Which equation represents the difference of their altitudes A at time t?
Answer:
The equation for difference in altitude of the two helicopters is A = 650 - 100t
Step-by-step explanation:
Given;
The altitude of one helicopter is, A1 = 600 + 150t
The altitude of a second helicopter is, A2 = 1250 + 50t
Their difference in altitude, A at time t, is calculated as
A₂ - A₁ = A = (1250 + 50t) - (600 + 150t)
A₂ - A₁ = A = 1250 + 50t - 600 -150t
A₂ - A₁ = A = 1250 - 600 + 50t - 150t
A₂ - A₁ = A = 650 - 100t
Therefore, the equation for difference in altitude of the two helicopters is A = 650 - 100t
Seven different models cars, from which there are three blue and four red, are to be parked in a row. Find how many different arrangements there are if the first, the last, and the car in the middle of the queue should be blue.
Answer ASAP for brainliest answer!
Answer:144 ways
Step-by-step explanation:
Given
There are 7 different models cars
out of which three are blue and 4 are red
If the first middle and last car in Queue is blue car therefore the position of blue cars is fixed
But these 3 cars can be arranged in 3! ways
Remaining 4 cars can be arranged in remaining 4 spots in 4! ways
Therefore total no of ways are
[tex]=3!\times 4![/tex]
[tex]=6\times 24=144\ ways[/tex]
Lars needs to purchase AT LEAST 35 party decorations. The Party Palace charges $0.50 per
decorative streamer and $0.25 per balloon, including tax. Which combination of streamers and
balloons can Lars purchase with $11.50 at the Party Palace?
19 streamers and 16 balloons
12 streamers and 22 balloons
11 streamers and 25 balloons
9 streamers and 27 balloons
Answer:
try going for B
Step-by-step explanation:
Select each point on the line y = -2x + 1. Select ALL the correct points
A (3, 18)
B (3, -5)
C (-3, -12)
D (0, 1)
E (-1, 8)
F (-2, 5)
Answer:
D, B, and F.
Step-by-step explanation:
Points D, B, and F lie on the line when graphed.
The quantities xxx and yyy are proportional. xxx yyy 5.85.85, point, 8 5.85.85, point, 8 7.57.57, point, 5 7.57.57, point, 5 11.211.211, point, 2 11.211.211, point, 2 Find the constant of proportionality (r)(r)left parenthesis, r, right parenthesis in the equation y=rxy=rxy, equals, r, x. r =r=r, equals
Question:
The quantities x and y are proportional.
x y
5.8 7.5
11.2
Find the constant of proportionality (r) in the equation y=rx
Answer:
The constant of proportionality is 75/58 or 1.29
Step-by-step explanation:
Given
The table above
Required
Find the constant of proportionality
The question has an incomplete table but it can still be solved because x and y are proportional.
Given that
y = rx
Make r the subject of formula
Divide through by x
y/x = rx
y/x = r
r = y/x
When y = 7.5, x = 5.8
Substitute these values
r = y/x becomes
r = 7.5/5.8
Multiply denominator and numerator by 10
r = (7.5 * 10)/(5.8 * 10)
r = 75/58
In this case, it's best to leave the answer in fraction.
However, it can be solved further.
r = 75/58
r = 1.29 (Approximated)
Hence, the constant of proportionality is 75/58 or 1.29
Answer:
the correct answer is 1
hope this helps :D
Solve the system:
y = 4x + 6
-5x - y = 21
Find the surface area of the pyramid to the nearest whole number.
7.2 in.
8 in.
Answer:
There needs to be 3 base lengths and 1 height length… I suggest resubmitting! :)
Is (1, -2) a solution of y> -6x – 3?
Choose 1 answer:
Yes
No
Answer:
Yes
Step-by-step explanation:
(1, -2)
y > -6x – 3
-2 > -6(1) - 3
-2 > -6 - 3
-2 > -9 Yes
What are the odds against selecting a red marble
Answer: it’s the first one.
Step-by-step explanation:
Complete the statement with the choice that best
describes the relationship between the polynomial
and its rational zeroes.
A polynomial, P, has a leading coefficient of 1 and
a constant term. The rational roots of Pare all
Answer:
Factors of the constant term
Step-by-step explanation:
the answer is "factors of the constant term"! i hope this helped
Urgent!!!The principal ordered three pizzas for the twelve students of the month. If each pizza has 8 pieces, what is the ratio of pieces of pizza to students of the month?
Reduce your answer to lowest terms.
Answer: 8:12?
Step-by-step explanation:
Answer: 32/12 = 8/3
Step-by-step explanation:
4 pizzas = 32 pieces
12 students
so, the ratio is
32/12 = 8/3
Find the measure of angle U
Answer:
30
Step-by-step explanation:
180-110=70
70+80=150
180-150=30
Find the area. Will mark brainliest.
Answer:
784
Step-by-step explanation:
Answer:
784
Step-by-step explanation:
34+22=56
28÷2=14
56×14=784
Which value of x makes this sentence true?
1/2 + x=10/11
A:9/22
B:11/13
C:8/9
D:13/22
Answer:
9/22
Step-by-step explanation:
1/2 + x=10/11
Subtract 1/2 from each side
1/2-1/2 + x=10/11-1/2
x = 10/11 -1/2
Getting a common denominator of 22
x = 10/11*2/2 -1/2 *11/11
x = 20/22 - 11/22
x = 9/22
Answer:
x=9/22
Step-by-step explanation:
u have to subtract 1/2 on both sides, so u can get X by itself
1/2-1/2+x=10/11-1/2
get the common denominator for 10/11 and 1/2
10/11 times 2/2=20/22
1/2 times 11/11=11/22
20/22-11/22= 9/22
x=9/22
ANSWER CHECK
substitute the variable X for 1/22
1/2+9/22=10/11
common denominator
1/2 times 11/11=11/22
11/22+9/22= 20/22 or 10/11
What strategy you used to solve Problem 3.
Answer: where is it??
Step-by-step explanation:
Which expression do you get when you eliminate
the negative exponents of 4a²b-? ?
16a
a² (a)
4b(62)
1
4ab
4a?(4->)
16b(b-2)
4a?)(a)
12
Answer:
4(a^2)(a^3)/16(b)(b^2)
Step-by-step explanation:
The equivalent expression in the simplified form of the expression [4a²(b⁻²)] / [16(a⁻³)b] will be [4 · a² · a³] / [16 · b² · b].
What is an equivalent expression?The equivalent is the expression that is in different forms but is equal to the same value.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The expression is given below.
⇒ [4a²(b⁻²)] / [16(a⁻³)b]
Simplify the expression, then we have
⇒ [4a²(b⁻²)] / [16(a⁻³)b]
⇒ [4 · a² · a³] / [16 · b² · b]
The equivalent expression in the simplified form of the expression [4a²(b⁻²)] / [16(a⁻³)b] will be [4 · a² · a³] / [16 · b² · b].
More about the equivalent link is given below.
https://brainly.com/question/889935
#SPJ2
WILL MARK BRAINLIEST! If you buy 3 pounds of hamburg for $8.97, how much will it cost for 5 pounds of hamburg?
Answer:
14.95
Step-by-step explanation:
every 1 pound is 2.99 so you would do 2.99 * 5
Answer:
$14.95
Step-by-step explanation:
To find the slope or the cost per pound of hamburger you divide 8.97 by 5 in order to find out it costs 2.99 per hamburger. You then, multiply 2.99 by 5 to gather that to buy 5 pounds of hamburger it would cost $14.95.
what is the value of x and y
Answer:
x = 10.6
y = 10.6
Step-by-step explanation:
To answer this question you will need to use trigonometry. If you don't already have an understanding of trigonometry, this will be very hard to explain. please let me know in the comments if you would like me to give it a go.
I hope this was helpful :-)
I need some help? :(
Answer:
imposable posable and all the way down like that
Step-by-step explanation:
Solve x + x + 2 + 2x = -2.
1
-1
0
-2
Answer:
[tex]x=-1[/tex]
Step-by-step explanation:
[tex]x + x + 2 + 2x = -2[/tex]
First, we need to collect like terms:
[tex]4x+2=-2\\4x=-4[/tex]
Then we divide both sides by 4:
[tex]\frac{4x}{4}=\frac{-4}{4}\\x=-1[/tex]
The answer is x = -1.
To solve this equation, you must collect like-terms by adding together x terms and numbers, and then rearrange to get x on one side and numbers on the other:
x + x + 2 + 2x = -2
4x + 2 = -2
- 2
4x = -4
÷ 4
x = -1
I hope this helps! Let me know if you have any questions :)
What kind of sequence is this?
43, 86, 172, 344, ...
arithmetic
geometric
both
neither
Answer:
Geometric Sequence
Step-by-step explanation:
Hope this helps! Have a nice day!
Answer:
aa
Step-by-step explanation:
aa
I need help with this can you explain how to do this so I can understand please ASAP!!
Answer: 1.64 2.100
Step-by-step explanation:
The reason for this is squaring something is simply mulyiplying the number by itself. for example
8 squared
there is a 2 above the 8 which means we will do 8x8.
8x8= 64
Hope this helps!!!!
What are the square roots of 64144?
−412 and 412
−3272 and 3272
−812 and 812
−49 and 49
Answer:
-812 and 812
Step-by-step explanation:
What is the range of the absolute value function below?
f(x) > -4
f(x) > -1
f(x) < 1
f(x) < 4
Answer:
y ≤1
Step-by-step explanation:
The range is the output values
It has a max at 1 and can be any value below 1
y ≤1
Answer:
f(x) < 1
Step-by-step explanation:
Max y value on the graph is y = 1, hence the range is f(x)《 1
From the given options,
f(x) < 1
HELP PLEASE!!!!!
Predict how many times you will roll a number less than 5 if you roll a standard number cube 350 times. Round to the nearest integer, if necessary.
Answer:
233 Times
Step-by-step explanation:
In a standard cube, there are 6 faces labelled 1 to 6.
Numbers less than 5=1,2,3,4
The probability of rolling a number less than 5 =4/6
Therefore, if the standard number cube is rolled 350 times.
Number of Expected Outcome Less than 5
[tex]=\dfrac{4}{6}X350[/tex]
[tex]=233.33\\\approx 233$ (to the nearest integer)[/tex]
We would roll a number less than 5 233 times.
Find the area of the sector of the circle.
Answer:
9π
8
Step-by-step explanation:
Formula= (x/360) π r^2
(45/360)3^2= 9
8
(Don't forget the π)
Answer= 9π
8
Raj's company ships T-shirts in boxes shaped like cubes. The picture below shows the cube
and its net. Raj is designing labels for all of the faces of the boxes. What is the surface area
of each box that Raj needs to cover with labels?
Answer: The surface area of each cube is 24 ft² (24 square feet)
Step-by-step explanation: The boxes according to the question are shaped like cubes, which means the shape we have here has square faces on all sides. Also the boxes have been opened up into nets and this shows each box as having 6 faces.
The area of each face is derived as follows;
Area = L x W
Area = 2 x 2
Area = 4 ft²
Having calculated the surface area of each face, a box or cube with 6 faces will have its surface area as;
Area of box = Face area x 6
Area of box = 4 x 6
Area of box = 24 ft²
Therefore in designing labels for all of the boxes, Raj would need 24 square feet of label for each box.
The surface area of the box is 24 square ft if the side length is 2 ft after using the surface area formula.
What is a cuboid?It is defined as the six-faced shape, a type of hexahedron in geometry.
It is a three-dimensional shape.
We have a box, the side length of the box is 2 ft.
The surface area of the box = 6a²
a is the side length.
a = 2 ft
Surface area of the box = 6(2)² = 24 square ft
Thus, the surface area of the box is 24 square ft if the side length is 2 ft after using the surface area formula.
Learn more about the cuboid here:
brainly.com/question/9740924
#SPJ5
Read the lines from Langston Hughes's poem ", Too, Sing America."
Tomorrow,
I'll be at the table
When company comes.
The lines promoted social change in the United States in the first half of the twentieth century because they spoke about
Ob
equal rights for African Americans.
European Americans' views of African Americans.
parties hosted by European Americans.
African Americans working as servants.
Od
Answer:
Answer: D) equal rights for African Americans
Step-by-step explanation:
4. Given the function f(x) = 8x + 2 , evaluate f(6)
Answer:
f(6) = 50
Step-by-step explanation:
f(x) = 8x + 2
Let x= 6
f(6) = 8(6) +2
= 48+2
= 50
Answer:
50
Step-by-step explanation:
8 x 6 +2
a restaurant has 25 square tables. one person can fit on each side of a table. how many people can be seated if all the tables are placed end to end in a line?
Answer:
52 people
Step-by-step explanation:
If you place 25 square tables in a line, the 23 tables in the middle can only seat 2 people each since the other two sides are touching two other tables. The end two tables can seat 3 people since only one of their sides is touching another table.
So multiply 23 by 2 to find out how many people are sitting in the middle and then add 6 people for the two tables on the end.
23(2) + 3(2) = 52 people
