4-4.
Can someone please tell me whether its B or C?
I'm leaning towards B but a friend said C.
Answers
Answer:
B
Step-by-step explanation:
Your first instinct is correct. Plus, it says GAIN ==> +. Not LOSS ==> -.
Answer:
Step-by-step explanation:
Choice B is correct. It’s given that the helicopter’s initial height is 40 feet above the ground and that when the helicopter’s altitude begins to increase, it increases at a rate of 21 feet per second. Therefore, the altitude gain t seconds after the helicopter begins rising is represented by the expression 21 t. Adding this expression to the helicopter’s initial height gives the helicopter’s altitude above the ground y, in feet, t seconds after the helicopter begins to gain altitude: y equals, 40 plus 21 t.
Related Questions
Dusty earns $5 for every 10 newspapers he delivers. Write and graph an equation which shows how much he earns for each delivered newspaper. How much would he earn if he delivered 320 papers?
Answers
x= 1/2
For every 2 newspapers he gets $1.
320/10 times 5
32 times 5
Answer:
$250
There are 520 marbles in a jar. The ratio of red to yellow marbles is 3:4 and the ratio of yellow to blue marbles is 2:3. What is the total number of yellow and blue marbles?
Answers
Answer:
Step-by-step explanation:
Change the 2/3 to 4/6
Now the ratio becomes 3:4:6
So the number of each is
3x + 4x + 6x = 520
13x = 520
x = 40
Red = 3*40 = 120
Yellow = 4*40 = 160
Blue = 6 * 40 = 240
Total = 520
Pls
Help!!!!!
Directions: Find all missing angles.
Answers
Answer:
m<1 = 87°
m<2 = 45°
m<3 = 45°
m<4 = 52°
Step-by-step explanation:
Angle C is a right angle. Therefore, it is 90°. Because line segment BC bisects angle C, the two angles would be 45° since 90 ÷ 2 = 45.
So, angles 2 and 3 equal 45°.
Now that we have two angle measures, we can find the measure of the third angle.
45 + 48 = 93°
180 - 93 = 87°
Angle 1 equals 87°.
45 + 83 = 128°
180 - 128 = 52°
Angle 4 equals 52°.
Hope that helps.
Billy likes to go cycling. His bike has wheels of the diameter 70 cm. He has a counter on his bike which counts the number of revolutions of the wheels make. One day the counter shows 190 revolutions. How far has Billy cycled? Give your answer to the nearest meter.
Answers
Answer:
401 meters
Step-by-step explanation:
To change the units without changing the value, we use the Multiplicative Identity (that is, 1).
The formula for the circumference of a circle is: C=Πd
The problem gives d=85 cm, so C=85Π cm. So, (1 revolution)=(85Π cm)
or 1= (85Π cm) / (1 revolution)
Billy traveled:
150 revolutions
(150 revolutions)*1
(150 revolutions) * ( (85Π cm) / (1 revolution) ) [note: revolutions cancel, leaving only cm]
(150)*(85Π) cm
40055.27 cm * ( (1 meter)/(100 cm) )
401 meters (rounded to nearest meter)
(this isnt my work credits to David W.
can someone explain the meaning of surface area and give me an example of it is
Answers
Answer:
The surface area of a solid object is a measure of the total area that the surface of the object occupies. ... Their work led to the development of geometric measure theory, which studies various notions of surface area for irregular objects of any dimension. An important example is the Minkowski content of a surface.
The total area of the surface of a three-dimensional object. Example: the surface area of a cube is the area of all 6 faces added together. See: Area.
y=6x + 100
help i don’t know this
what is the rate of change for this equation
Answers
Explanation: the slope (6) is the same thing as rate of change
The diagram shows a trapezoid prism.
The area of the cross-section is 55cm.
The volume of the prism is 330cm
Find the length of the prism.
Answers
Given:
The area of the cross-section is 55cm².
The volume of the prism is 330cm³.
To find:
The length of the prism.
Solution:
We have,
Area of the cross-section = Area of base = 55 cm²
Volume of the prism = 330cm³.
Let x be the length(height) of the prism.
We know that,
[tex]\text{Volume of prism}=\text{Base area}\times height[/tex]
[tex]330=55\times x[/tex]
[tex]\dfrac{330}{55}=x[/tex]
[tex]6=x[/tex]
Therefore, the length of the prism is 6 cm.
If the original quantity is 14 and the new quantity is 22, which of these is the best estimate for the percent of change?
A 25% increase
B 100% increase
C 75% increase
D 50% increase
Answers
What number is 115% of 106? (Show your work)
Answers
2. We assume, that x is the value we are looking for.
3. If 100% equals 106, so we can write it down as 100%=106.
4. We know, that x% equals 115 of the output value, so we can write it down as x%=115.
5. Now we have two simple equations:
1) 100%=106
2) x%=115
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=106/115
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for 115 is what percent of 106
100%/x%=106/115
(100/x)*x=(106/115)*x - we multiply both sides of the equation by x
100=0.92173913043478*x - we divide both sides of the equation by (0.92173913043478) to get x
100/0.92173913043478=x
108.49056603774=x
x=108.49056603774
now we have:
115 is 108.49056603774% of 106
Answer:
121.9
Step-by-step explanation:
1% of 106 = 1.06
1.06 x 15 = 15.9
106 + 15.9 = 121.9
please help , i dont understand this at all
Answers
Factor 12a - 15b + 6
Answers
Answer:
Hi! The correct answer is 3(4a-5b+2)!
Step-by-step explanation:
~Factor 3 out of 12a-15b+6~
Answer:
3(4a- 5b + 2)
Step-by-step explanation:
Hope this helped!!! :)
James is putting a brick border around his circular pool. The bricks are 1 foot in length. How many bricks does James need to buy to build the border? Use 3.14 for π.
Answers
The number of bricks needed to border the circular pool is 6.28r.
The circumference of a circle is the distance around the circle which is 2πr.
The diameter of a circle is the largest chord that passes through the center of a circle it is 2r.
Given, Mr. Cortez is putting a brick border around his circular pool.
So, he is boarding the circumference of the circular pool which has a distance of 2πr.
Now, the bricks are 1 foot in length.
Therefore, the number of bricks needed is,
= 2πr/1
= 2πr
= 6.28r
Therefore, the number of bricks James need to buy to build the border is 6.28r.
Learn more about circles here:
brainly.com/question/29142813
#SPJ4
A shipping box has the dimensions shown 1/4 1/4 and 1/2, What is the volume of the box in cubic yards.
First 3 people get a brainly
Answers
Step-by-step explanation:
what is the unit of measurement for the 1/4, 1/4, and 1/2?
You must find all intervals where f (x) is positive. F(x)=-3x^2-6x+24
Answers
Answer:
he positive regions of a function are those intervals where the function is above the x-axis. It is where the y-values are positive (not zero). The negative regions of a function are those intervals where the function is below the x-axis. It is where the y-values are negative
Step-by-step explanation:
Mike plans to train for a race by running 8 miles each day for 15 days. He will run at an average speed of 6 miles per hour. At that rate, what is the total number of hours Mike will spend running?
Answers
. The sum of two consecative integers is three times of their difference. what is the
smoller number
3
2
4
1
Answers
Answer:
The smallest number is 1
Step-by-step explanation:
1+2=3
2-1=1
1•3=3
HELP!!!!!!! Solve the equation |x-1|+3=2
Answers
The absolute value of x-1 is x+1
Our new equation: x+1+3=2
X+4=2
Then you have to isolate the variable
X+(-4+4)=(2-4)
Answer: X=-2
pls i need help what is 1 plus 1?
Answers
1+1 = 84, explanation is quite simple. i should get brainliiest
marking Brainlist 7-9g+3g
Answers
Answer:
7-6g
Then you do the 1 step equation.
Divide both sides by 6.
1.16=g
I'm not sure if it's right.
Which equation represent a circle with a center at (2,-7) and a radius of 4 units ?
Answers
Answer:
[tex] {(x - 2)}^{2} + {(y + 7)}^{2} = 16[/tex]
Step-by-step explanation:
[tex] {(x - 2)}^{2} + {(y + 7)}^{2} = 16[/tex]
what is the total surface area,in square feet, of the net shown below
Answers
Answer:
There is no net....can you add a picture of it please? Thank you.
Step-by-step explanation:
If 24 marbles have a mass of 60g what would be the mass of 60 marbles
Answers
Answer:
300 g
Step-by-step explanation:
First divide the mass of those 12 marbles (60 g) by the number of marbles which have 60 g mass (12 marbles). You'll get the answer as 5 g , which means 5 g is the mass of 1 marble. Now multiply the answer by 60 (specification of marbles). You'll have the answer as 300 g.
i.e.
60 / 12 = 5
5 x 60 = 300
PLEASE ANSWER I WILL MARK AS BRAINLIESTTTTTT
Simplify the expression by combining like terms.
43a−12b+13a+52b
Enter your answer as an expression, like this: 42x+53
Answers
Answer:
56a + 40b
Step-by-step explanation:
hope this helps!
Answer: 56a + 40b
Step-by-step explanation:
43a - 12b + 13a + 52b
Bring like terms together
43a + 13a - 12b + 52b
Combine like terms
56a + 40b
Hope that helped!
Solve the system by making a table of values. Show your work in the scratch
pad
2x +y = 6
y=x+3
Answers
Explanation :
13. Which equation has real, rational, and unequal roots?
A) x2 + 10x + 25 = 0 B) 22 – 5x + 4 = 0
C) x2 – 3x +1=0 D) 22 – 2x + 5 = 0
Help
Answers
Answer:
is it 1 question or about four questions
The doctor advised Peter to take the medicine after every 80 minutes. How many times did Peter take the medicine
in a day?
Answers
Answer:
did u have any options in that..so I can tell u
Answer:
18 times in a day
Step-by-step explanation:
1 day - 24 hours
1 hours - 60 minutes
24 hours - 24 × 60
= 1440
1 day - 1440 minutes
therefore, 1440/ 80 = 18
Xavier starts the summer with $315 in his savings account. Since he will be working a lot this summer, he made plans to deposit $80 into his account each week. If he ended the summer with $955 in his savings account, how many weeks did he make deposit?
Answers
Answer: 8 weeks
Step-by-step explanation:
He originally had $315 in his account. This figure increased to $955. It therefore increased by:
= 955 - 315
= $640
If he deposited $80 every week, the number of weeks it would take to deposit $640 is:
= 640/80
= 8 weeks
Hand me over the answers of B and C or perish
Answers
C.the y intercept represents how much money it costs per 1 ticket
Hope this helps
Have a great day/night
50+2x=20+5x what does the variable x represent in the equation below
Answers
Answer:
x=10Step-by-step explanation:
[tex]50+2x=20+5x\\\\\mathrm{Subtract\:}50\mathrm{\:from\:both\:sides}\\\\50+2x-50=20+5x-50\\\\Simplify\\\\2x=5x-30\\\\\mathrm{Subtract\:}5x\mathrm{\:from\:both\:sides}\\\\2x-5x=5x-30-5x\\\\Simplify\\\\-3x=-30\\\\\mathrm{Divide\:both\:sides\:by\:}-3\\\\\frac{-3x}{-3}=\frac{-30}{-3}\\\\Simplify\\\\x=10[/tex]
Josh works 40 hours a week and earns $10 an hour. Calculate Josh’s total earnings and place your answer in the paycheck.
Answers
Answer:
He earns $400 weekly and $57.14
Step-by-step explanation:
40*10 = $400
Josh earns a total of $400 dollars a week!