Answer:
0.847Step-by-step explanation:
In this expression, you would have to use the PEMDAS method. First divide, so (5 divided by 8) + (2 divided by 9).
The answer you would get is: (0.625) + (0.222)
The final answer is: 0.847
A study was created to test the effects of jazz on people’s sleep patterns. The hypothesis of the experiment, 2 groups of people were created.Group I was placed in a quiet room where they went to sleep and they were timed on how long they slept. The group 2 was placed in a room where jazz music played softly as they began to sleep and played throughout the night. As each group awoke,their sleep times were monitored. What is the independent Variable ? And what is the Dependent Variable?
Answer:
independent variable- Presence or absence of soft jazz music
Dependent variable - sleep time
Step-by-step explanation:
The independent variable refers to that variable that is manipulated in an experiment. The independent variable is being studied and its effect on the dependent variable is documented. Presence or absence of soft jazz music is the independent variable.
The dependent variable is the response variable. It is that factor that changes when the independent variable is manipulated. In this case, the sleep time of the participants in the study is the dependent variable.
need help. pls help. i suck at math. math is a no no for me. help me pls.
Answer:
A5#A
Step-by-step explanation:
Kylie is preparing for the science fair that will take place in six weeks. She has three plants that she has grown from seeds, which she considers to have height 0 centimeters, and she is measuring their heights as she applies different treatments to each. The second plant is receiving Plant Food B. After 3 weeks, it is 10 centimeters tall. If it continues growing at this rate, how tall will it be after 6 weeks?
The height of plant B growing at a rate of 3.33 centimeters per week should have a height of 19.98 cms.
What are lines and their slopes?We know lines have various types of equations, the general type is
Ax + By + c = 0, and equation of a line in slope-intercept form is y = mx + b.
Where slope = m and b = y-intercept.
the slope is the rate of change of the y-axis with respect to the x-axis and the y-intercept is the (0,b) where the line intersects the y-axis at x = 0.
First we need two points (x, y) to obtain the slope.
Assuming height to be 'y' and weeks to be 'x'.
Therefore, (0, 0) and (3, 10) are the two points.
Slope(m) = (10 0)/(3 - 0).
Slope(m) = 10/3.
Slope(m) = 3.33
Now, To obtain the y-intercept.
10 = 3(3.33) + b
b = 0.01 Or neglegible.
Therefore y = 3.3x.
Now, In the 6th week, the height of plant B will be,
y = 3.33(6).
y = 19.98 or 20 cm.
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need help on this too
Answer:
The reflexive property of equality states that any number is equal to itself. This property has no proof, as it is the fundamental building-block of all other proofs.
Step-by-step explanation:
Vertical Motion A football is released into the air at an initial height of 6 feet and an initial velocity of 30 feet per second. The football is caught at a height of 7 feet. Use the vertical motion model h=-16t^2+vt+s where h is the height, t is the time in motion, s is the initial height, and v is the initial velocity, to find how long the football is in motion.
Answer:
16^6t^2+30^6+15
Step-by-step explanation:
what is 9 as a decimal?
Answer:
0.09 is 9 as a decimal
A moving company drove one of its trucks 100,042 miles one year. A second truck was
driven 98,117 miles, and a third truck was driven 120,890 miles. How many miles
were driven by all three trucks?
HELP ME PLEASE IVE BEEN STUCK FOR HOURS ON THIS!!!!!!
319049
as 100,042 + 98,117 + 120,890 = 319,049
help me please with my algebra
Answer:
y - 3 = -3 ( x - 7 )
Step-by-step explanation:
→ It is true for all values as you substitute in the x value and get the y as the output
Eight toy camels and three toy pigs cost Gary $85. Twelve toy camels cost Sherry $96. Assuming everyone bought their toys at the same store and there were no discounts, what is the cost of two toy pigs?
Answer:
2 toy pigs cost $14
Step-by-step explanation:
If 12 toy camels cost $96, I can solve ($96 / 12 = $8) to find the price of 1 toy camel. Now, I know that 1 toy camel costs $8.
If 8 toy camels and 3 toy pigs cost $85, I can multiply the price of 1 toy camel by 8 and solve ($8 x 8 = $64).
Next, I can subtract Gary's total cost by the toy camels to find how much was spent on 3 toy pigs. ($85 - $64 = $21) Therefore, 3 toy pigs cost $21.
Then, I can solve ($21 / 3 = $7) to find the price of 1 toy pig. Finally, I can multiply ($7 x 2 = $14) to find that 2 toy pigs cost $14.
Answer:
Two toy pigs cost $14.
Step-by-step explanation:
Gary bought 8 toy camels and 3 toy pigs for $85.
Sherry bought 12 toy camels for $96.
Thus, each toy camel cost $96/12=$8
Now we know Gary spent 8*$8= $64 in toy camels.
The rest of the $85, $85 - $64 = $21 was spent on the 3 toy pigs, thus each toy pig cost $21/3=$7
If one toy pig costs $7, two toy pigs cost $14.
m = ab + 3c Solve for a
Answer:
[tex]\frac{M-3c}{b}=a[/tex]
Step-by-step explanation:
[tex]M=ab+3c\\M-3c=ab\\\frac{M-3c}{b}=a[/tex]
Answer:
[tex]\frac{m - 3c}{b} = a[/tex]
Step-by-step explanation:
m = ab + 3c
-3c - 3c
m - 3c = ab
[tex]\frac{m - 3c}{b} = \frac{ab}{b}[/tex]
[tex]\frac{m - 3c}{b} = a[/tex]
what is the simplified square root of -20?
Answer:
do you mean -2[tex]\sqrt{5}[/tex]?
Step-by-step explanation:
Find the slope of the line that passes through (7,5) and (5, 8).
Simplify your answer and write it as a proper fraction, improper fraction, or integer
Answer:
slope is -3/2
Step-by-step explanation:
Use the slope formula
y2-y1/x2-x1=m (rise over run)
(7,5) (5,8)
x1 y1 x2 y2
8-5/5-7=m
-(3/2)=m
What would the sum of the interior angles of a 10 sided regular polygon shape be?
Select one:
O a. 360
O b. 1,004
O C. 1,800
O d. 1,440
If (p, q) is the solution to the system of equations, what is the value of q?
−16p − 2q = 100
p − 4q = 200
A) 0
B) −10
C) −25
D) −50
Answer:
1
Step-by-step explanation:
Identify the slope and y-intercept of the line for each equation.
7. y = -5x-3/4
8. y = 1/4x+5
Answer:
7. Slope = -5
Y-intercept = -3/4
8. Slope = 1/4
Y-intercept = 5
Step-by-step explanation:
y = mx + b
Slope = m
Y-intercept = b
PLEASE PLEASE PLEASE HELP!
Answer: Interval Notation:
(– ∞,–1) ∪ (–8, ∞) Set-Builder Notation:
{x | x ≠–1}, but I don’t know to the Question #2. (III), sorry. :(
Step-by-step explanation: Set up the composite function and evaluate, then find the domain of the result. (Neither)
Avery is moving and must rent a truck. There is an initial charge for the rental plus a fee per mile driven. Let C represent the total cost of renting the truck when the truck is driven m miles. The table below has select values showing the linear relationship between m and C. Determine the cost per mile that Avery drives.
M: 2, 4.5 ,7
C: 46, 53.5 , 61
Answer thought it was m=3 but nvm
Step-by-step explanation:
Find the measure of each numbered angle.?
please show work and I'll give bonus points I rlly need the answers
Answer:
8. 95°
9. 85°
10. 49°
11. 53°
Step-by-step explanation:
8) m + 28° + 57° = 180°
m = 180°–28°–57°
m = 95°
9) m∆4 + m∆5 = 180°
95° + m∆5=180°
m∆5 = 180°–95°
m∆5 = 85°
10) 180°–36°–95°=49°
11) 180°–42°–85°=53°
The population of ages at inauguration of all U.S. Presidents who had professions in the military is 62, 46, 68, 64, 57. Why does it not make sense to construct a histogram for this data set? Choose the correct answer below.
A. There must be an even number of data values in the data set to create a histogram.
B. This data set would yield a histogram that is not bell-shaped.
C. Adequate class boundaries for a histogram cannot be found with this data set.
D. With a data set that is so small, the true nature of the distribution cannot be seen with a histogram.
Answer:
The correct option is D.
Step-by-step explanation:
A histogram is a bar chart wherein the horizontal scale signifies class interval (or classes of data values) and the vertical scale signifies frequencies or percentages. The altitudes of the columns relate to the frequency values, and the columns are drawn together without breaks.
The histogram has the following properties:
• Shows the shape of distribution
• Shows the location of center
• Shows the spread of data
• Helps in identifying outliers
Since the sample collected is so small, the true nature of the distribution cannot be seen with a histogram.
Thus, the correct option is D.
Help tell me which one is supposed to go with which. Answer as quick as possible
Answer:
(-7,5)
Step-by-step explanation:
Have a Great Dayy
Lucy went to buy apples, she bought the first two for the full price and the last one for half the price. Is the relationship between the number of apples and the cost proportional? Justify an answer
Find the equation of the line through point (10,4) and parallel to 3x+5y=8.
[tex]3x+5y=50[/tex] is the equation of the line through point (10,4) and parallel to 3x+5y=8.
How to solve equation of the line through point and parallel to a given line?We can write the equation of a line parallel to a given line if we know a point on the line and an equation of the given line. y=2x+3 . Parallel lines have the same slope. The slope of the line with equation y=2x+3 is 2 .
Given
Equation of the line is 3x + 5y = 8.
Point = (10, 4)
First we find the slope of the line 3x + 5y = 8 by replacing it into slope intercept form:
[tex]3x + 5y = 8[/tex]
⇒ [tex]5y = -3x + 8[/tex]
⇒ [tex]y = \frac{-3}{5} x + \frac{8}{5}[/tex]
Therefore, the slope of the line is m = [tex]\frac{-3}{5}[/tex].
Now since the equation of the line with slope m passing through a point [tex](y-y_{1} )=m(x-x_{1})[/tex]
⇒ [tex]y - 4=\frac{-3}{5} (x-10)[/tex]
⇒ [tex]5(y-4)=-3(x-10)[/tex]
⇒ [tex]5y-20=-3x+30[/tex]
⇒ [tex]3x+5y=30+20[/tex]
⇒ [tex]3x+5y=50[/tex]
Hence, [tex]3x+5y=50[/tex] is the equation of the line through point (10,4) and parallel to 3x+5y=8.
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FIRST CORRECT ANSWER WILL GET BRAINLIEST
Write the equation in slope-intercept form for the line that has the given slope 5 and y intercept -6
A)y = -6x + 5
B)y + 6x = 5
C)y = -5x + 6
D)y = 5x - 6
Answer:
D
Step-by-step explanation:
D)y = 5x - 6
y=mx+b
where m = slope and b=y-intercept
Hope I helped!
~PumpkinSpice1
What is the scale factor of this dilation?
1/2
3/5
1 2/3
2
Helpppppp plz I’ll give brainliest if it’s right.
Martina took a math test and answered 17 out of 20 questions correctly. What percent of the questions did Martina answer correctly?
Answer:
85%
Step-by-step explanation:
Factorise
b) x + 3x - 40
what is the area of a rectangular prism
MATHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
Answer:
A=2
Step-by-step explanation:
Answer:
A=2(wl+hl+hw)
This is the formula but what is the prism you want the area for.
The town of Simpsonville has two tow truck companies. Company A charges an initial fee of $30 plus $2 per mile. Company B charges an initial fee of $20 plus $4 per mile. Use the graph to determine when it's cheaper to use Company B instead of Company A. Question 11 options: A) Towing 5 miles
Answer:
What are the other options? Any option with a number of miles less than 5 is right
Step-by-step explanation:
Answer:underlined and bold is answer!!
A)
Towing 5 miles
B)
Towing more than 5 miles
C)
Towing more than 5 miles but less than 15 miles
D)
TOWING FEWER THAN 5 MILES
Step-by-step explanation:
a distributor wants to make 1000 pounds of trail mix that is 8% raisins. He will use a mix that is 5% raisins and a mix that is 20% raisins. How many pounds of each should he use?
Answer:
200 pounds 20% raisins
800 pounds 5% raisins
Step-by-step explanation:
Let number of 5% be x
and number of 20% be y
x + y = 1000
Also;
5% of x + 20-% of y = 8% of 1000 pounds
= 0.05x + 0.2y = 80
From i , x = 1000-y
0.05(1000-y) + 0.2y = 80
50-0.05y + 0.2y = 80
0.15y = 30
y = 200
x = 1000 - y
= 1000-200 = 800
He will use 800 pounds for a mix that is 5% raisins and 200 pounds for a mix that is 20% raisins.
Given that,
A distributor wants to make 1000 pounds of trail mix that is 8% raisins.
He will use a mix that is 5% raisins and a mix that is 20% raisins.
We have to determine,
How many pounds of each should he use.
According to the question,
Let number of 5% raisins be x,
And number of 20% raisins be y.
Then,
He will use a mix that is 5% raisins + A mix that is 20% raisins = Distributor trail mix.
[tex]x + y = 1000[/tex]
And,
He will use a mix that is 5% raisins of x + and a mix that is 20% raisins of y = 1000 pounds of trail mix that is 8% raisins.
5% of x + 20% of y = 1000 of 8% raisins
[tex]0.05 x+ 0.20y = 80[/tex]
On solving both the equation,
[tex]x + y =1000\\\\x = 1000-y[/tex]
Substitute the value of x in the equation 2,
[tex]0.05 (1000-y) + 0.20y = 80\\\\0.05 \times 1000 - 0.05y + 0.20y = 80\\\\50 + 0.15y = 80\\\\0.15y = 80-50 \\\\0.15y = 30\\\\y = \dfrac{30}{0.15}\\\\y = 200[/tex]
Substitute the value of y in the equation 1,
[tex]x + y = 1000\\\\x + 200 = 1000\\\\x = 1000-200\\\\x = 800[/tex]
He will use x = 800 pounds a mix that is 5% raisins and y = 200 pounds for a mix that is 20% raisins.
Hence, He will use 800 pounds for a mix that is 5% raisins and 200 pounds for a mix that is 20% raisins.
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help please will mark brainliest
Answer:
1.) 20z^5
2.) 8m^5 · 6p^7 · 3mp^0
Step-by-step explanation:
4z^3 · z^2 · 5z
first, multiply 4z · 1z = 4z and add the exponents 3 + 2 = 5
4z^5 · 5z
multiply 4z · 5z and keep the exponents
20z^5
2m^3p^4 · 4m^2p^3 · 3mp^0
find just the "m" variables: 2m^3 · 4m^2 and same as before multiply then add the exponents = 8m^5
now do the same for the "p" variables: 3p^4 · 2p^3 = 6p^7
and for the "mp" variable: 3mp^0
put it all together and this is the simplest form because we don;t know the values of the variables:
8m^5 · 6p^7 · 3mp^0
Hope this helps! If you have any additional questions please don't hesitate to ask me or your teacher to be sure you master the subject. :) Stay safe and please mark brainliest!