Answer:
v = k/p
where k is constant
3.5 = k/5
k = 3.5 × 5
k = 17.5
v = 17.5/p
v= 17.5/8
v = 2.1875
v ≈ 2.20 litres
Alyssa emptied out her change jar to buy a new binder for school. She found 147 coins consisting of dimes ( d) and nickels ( n) that totaled $11.65. One of the constraints that would be used to determine how many dimes and how many nickels Alyssa had in her change jar is n+d=147 and the other is ___n + ___d = 11.65.
Factorise the following:
a) x – 5x - 6
b) x + 3x – 40
C) - 7x - 30
Answer:
-4x-6
4x-40
-7x-30
Step-by-step explanation:
Which describes the number and type of roots of the equation x^3 + 121x = 0?
a. 2 real roots, 1 imaginary root
b. 1 real root, 2 imaginary roots
c. 3 real roots
d. 3 imaginary roots
Answer:
b; 1 real root and 2 imaginary roots
Step-by-step explanation:
From here, we have
x(x^2 + 121) = 0
x = 0 (1 real root)
or
x^2 + 121 = 0
x^2 = -121
x = √(-121) (2 imaginary roots)
so is would be two complex numbers from above
Is this the right answer?
Answer:
yes
Step-by-step explanation:
10 is half of 20 but the equation is 11/20 therefore 11/20 is greater than 10/20=1/2
How to find the height of the cylinder without volume
5x-3=19? Answer for Brainliest
Answer:
x = 4.4
Step-by-step explanation:
I'm going to assume you want to solve for x so here we go.
You need to work backwards for this equation, and whatever you do to the LHS, you do to the RHS.
First, you need to remove the minus 3, which means that on both sides, you add 3. Adding three on the LHS makes the -3 disappear, and adding 3 on the RHS makes the 19 go to a 22.
Your equation is now 5x=22.
Since 5x means 5 × x, to get rid of it, you need to divide 5x by 5. Doing it to the LHS will make the five disappear, and doing it to the RHS will make it go to 22 ÷ 5 which equals 4.4
Therefore, x = 4.4
A football is thrown into the air. The height, h(t), of the ball, in metres, after t seconds is modelled by h(t) 4.9(t1.25)29.
1.How high off the ground was the ball when it was thrown?
2.What was the maximum height of the football?
3.How high was the ball at 2.5s?
4.Is the football in the air after 6s?
5.When does the ball hit the ground?
Answer: how high off the ground was the ball when it was thrown
Step-by-step explanation:
which of these expression is equivalent to -2(3-y)
[tex]( - 6 + 2y)[/tex]
answer the question
A cell phone company charges a monthly rate of $10.00 and $0.20 a minute per call. Write an equation that can be used to determine the number of minutes, m, of calls made if the bill for one month is $30.
Answer:
y = 0.20m + 10, 100 minutes
Step-by-step explanation:
Equation: y = mx + b
Fill it in.
m = slope = 0.20
b = y-intercept = 10
y = 0.20x + 10 (They wanted the variable to be m. So, changing that.)
y = 0.20m + 10
Fill in.
30 = 0.20m + 10
Solve.
20 = 0.20m
100 = m
She was on the phone for 100 minutes.
Joseph's workshop is 12 feet by 7 feet. If the drawing of the workshop has a scale of 1inch = 2 feet, what are the dimensions of the drawing? (enter your answer with a comma separating the two numbers)
Answer:
6, 3.5.
Step-by-step explanation:
Start with the 12 foot measurement. 1 inch of the drawing represents 2 feet, so divide 12 feet by 2 to find out how many inches represent 12 feet. 12/2 is 6. Do the same with the 7 foot measurement. 7/2 is 3.5, so the drawing of the 7 foot side will be 3.5 inches.
the product of a number and two more than the number .. what is the expression?
can u guys help me with this
Answer:
Step-by-step explanation: Finding the height can be solved using a simple formula using the length of the base and the area. You should multiply length times area! hope this helps.
Find the median, mean, and range.
68, 82, 43, 39, 83
Answer:
mean is 63 median is 68 and range is 44
Please please help me please!!!!!!! URGENT!!!!
Answer:
the answer is 25 so yeah hhhhh
hallar el numero de intervalo de
33 - 11= 22
Answer:
22=22
Step-by-step explanation:
33-11
22
22=22
Find the measure of the
indicated angle
Answer:
45
Step-by-step explanation:
180 in a triangle,
110 + 25 = 135
add on 45 = 180
Help please! Thanks!!!
To get this answer, we'll use the cosine ratio
cos(angle) = adjacent/hypotenuse
cos(A) = AC/AB
cos(35) = b/c
cos(35) = b/280
280*cos(35) = b
b = 280*cos(35)
b = 229.362572400918
b = 229
When you use your calculator, make sure it's in degree mode.
What is the exact side length of a cube that
has a volume of 10 cubic units?
Answer:
[tex] {x}^{3} = 10 \\ x = \sqrt[3]{10} [/tex]
Answer:
2.1544 units
Step-by-step explanation:
This side length can be found by finding the third root of the cube:
side length = {10 units^3}^{1/3) = 2.1544 units
Note: as a check we can cube this result: 2.1544^3 = 10
Angle Relationship Equations ... pose help I don’t do this but my friend has to so help
3)
26 + ( 3x + 1 ) = 180
27 + 3x = 180
3x = 180 - 27
3x = 153
x = 153/3
x = 51
___________________
4)
( 4x + 1 ) + ( 3x + 4 ) = 180
7x + 5 = 180
7x = 180 - 5
7x = 175
x = 175/5
x = 25
Answer:
3) [tex]x=51[/tex]
4)[tex]x=25[/tex]
Step-by-step explanation:
[tex]3) ~ 3x+1+26=180\\ \\ ~ (linear ~pair)[/tex]
[tex]3x+27=180\\~ ~ -27 ~ ~-27[/tex]
[tex]subtract ~ -27 ~ from ~ both ~ sides[/tex]
[tex]\frac{3x}{3} =\frac{153}{3}[/tex]
[tex]x=51[/tex]
--------------------------
[tex]4)~ 4x+1+4+3x=180[/tex]
[tex]7x=180-5[/tex]
[tex]x=\frac{175}{7}[/tex]
[tex]x=25[/tex]
----------------------------
hope it helps...
have a great day!!
please help me with this problem!!
Answer:B hope this helps! :D
Step-by-step explanation:
find the value of x. x³=8
Answer:
x = 2
Step-by-step explanation:
x^3 = 8
(2)^3 = 8
2 * 2 * 2 = 8
x = 2
Answer:
the value of x is 2
hope it helps
stay safe healthy and happy.Suppose that 21 inches of wire costs 84 cents.
At the same rate, how much in cents) will 47 inches of wire cost?
Answer:
44 cents
Step-by-step explanation:
First we need to find out how much per inch so do 84 divided by 21 which is 4 then get the closest to the number 47 which is 44 so 4x11=44 cents I'm not sure if it's right tho
please answer correctly. i will give brainliest!!
I'm pretty sure its just the last 3
Jaime says that the value of -1 x n is always equal to the value of n = (-1) for all
values of n.
Explain whether Jaime is correct or incorrect.
On a hike, Oscar's elevation change after 12 minutes was-84 feet. Assuming his elevation was changing at a constant rate, what integer represents his elevation change per minute?
Answer: -7
Step-by-step explanation:
From the information given, we are.l told that Oscar's elevation change after 12 minutes was -84 feet.
Since his elevation was changing at a constant rate, his elevation change per minute will be:
= -84 feet / 12
= -7feet/minutes
Therefore, the integer is -7.
RuiFeng is twice as old as Raj and Khairul is 7 years younger than RuiFeng. If the sum of their ages is 38 years, find their respective ages?
Answer:Ans :RuiFeng 18 yrs, Raj 9 yrs, Khairul 11 yrs
Step-by-step explanation:
The graph of f(x) = 3 . 2*-3 is shown below. g(x) is a transformation of f(x).
How would you write the equation for the function g(x)?
Answer: (c)
Step-by-step explanation:
Given
Function [tex]f(x)[/tex] is [tex]3\times 2^x-3[/tex]
Also, [tex]g(x)[/tex] is the transformation of [tex]f(x)[/tex]
From the graph, it is clear that [tex]g(x)[/tex] passes through the point [tex](0,5)[/tex]
Now check the option which satisfies the condition
option (c) seems to obey it
[tex]g(x)=3\cdot 2^x+2\\g(0)=3\cdot 2^0+2\\g(0)=3\cdot 1+2\\g(0)=3+2\\g(0)=5[/tex]
Therefore, option (c) is correct.
Select the ordered pairs that are part of the
solution set of this system of inequalities.
Answer:
ye boy
Step-by-step explanation:
Answer:
the second one, I asked my Kids.
determine the equation of the line which has a graident 4 passing through (3,-2)
How do you solve this? I really don't understand...
Answer:
MEAN 5.8 add all the points up then divide by the number of dots
MEDIAN 5 the middle of the data
MODE 5 most accruing one
RANGE 7 maximum minus minimum