Answer:
Cubes have 6 equal faces, and the surface area is the sum of all of these faces. Thus, one face would be 1/6 of the cube's surface area, or about 17%.
Step-by-step explanation:
Please help me, no links or random answers, please. When you are writing the answer please number it so I know which answer is for which question.
Answer:
Step-by-step explanation:
a. Y intercept is where the line crosses the y axis, so for l1 it’s (0,4). Answer is 4.
b. Y intercept for l2 is point (0,2). Answer is 2.
c. l1 gradient is -1/2. Rise/run
So l1 equation is y = -1/2x + 4
l2 gradient is 1.
Equation is y = x + 2
e. x+2= -1/2x + 4
1.5x = 2
x = 1.333...
y = plug into one of the equations value of x. So y = 3.333...
f. 1.33+ 2 = 3.33
-1/2 times 1.33 + 4 = 3.33 (rounded)
The graph shows the function f(x).
Which equation represents f(x)?
C D
O f(x) = -3/7
5
4
Of(x) = -3/X-1
3
2
f(x)
Of(x) = 3/-8-1
1
Of(x) = 3-Y
-10-8-6-4
-2.
2
4
B
8 10
w
Mark this and return
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Answer:
mathmiticians: impossible
Step-by-step explanation:
some random kid: the answer is approxamatly 47.7
The equation of f(x) is f(x)= −43x−3, the correct option is C.
What is a function?Function is a type of relation, or rule, that maps one input to specific single output.
In mathematics, a function is an expression, rule, or law that describes the relationship between one variable (the independent variable) and another variable (the dependent variable) (the dependent variable). In mathematics and the physical sciences, functions are indispensable for formulating physical relationships.
Linear function is a function whose graph is a straight line
We are given that;
f(x) = -3/X-1
Now,
To find the equation of f(x), we need to identify the slope and the y-intercept of the line. The slope is the ratio of the vertical change to the horizontal change between any two points on the line. The y-intercept is the value of f(x) when x = 0.
Looking at the graph, we can see that f(x) passes through the points (-8, 3) and (0, -3). The slope can be calculated as:
slope=run rise= 0−(−8) f(0)−f(−8)=0+8−3−3=8−6=−43
The y-intercept can be found by plugging in x = 0 into the equation f(x) = slope x + y-intercept and solving for y-intercept:
f(0)=−43x0 + y-intercept
−3=y-intercept
Therefore, by the given function the answer will be f(x)=−43x−3.
Learn more about function here:
https://brainly.com/question/2253924
#SPJ7
The American Water Works Association reports that the per capita water use in a single-family home is 69 gallons per day. Legacy Ranch is a relatively new housing development. The builders installed more efficient water fixtures, such as low-flush toilets, and subsequently conducted a survey of the residences. Thirty-six owners responded, and the sample mean water use per day was 64 gallons with a standard deviation of 8.8 gallons per day.
Required:
At the 0.10 level of significance, is that enough evidence to conclude that residents of Legacy Ranch use less water on average?
Answer:
The pvalue of the test is 0.0083 < 0.1, which means that there is enough evidence to conclude that residents of Legacy Ranch use less water on average
Step-by-step explanation:
The American Water Works Association reports that the per capita water use in a single-family home is 69 gallons per day. Test that the residents use less water.
At the null hypothesis, we test that the mean is 69, that is:
[tex]H_0: \mu = 69[/tex]
At the alternate hypothesis, we test that the mean is less than 69, that is:
[tex]H_a: \mu < 69[/tex]
The test statistic is:
As we have the standard deviation for the sample, we use the t-statistic.
[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, s is the standard deviation and n is the size of the sample.
69 is tested at the null hypothesis:
This means that [tex]\mu = 69[/tex]
Thirty-six owners responded, and the sample mean water use per day was 64 gallons with a standard deviation of 8.8 gallons per day.
This means that [tex]n = 36, X = 64, s = 8.8[/tex]
Value of the test statistic:
[tex]t = \frac{X - \mu}{\frac{s}{\sqrt{n}}}[/tex]
[tex]t = \frac{64 - 69}{\frac{8.8}{\sqrt{36}}}[/tex]
[tex]t = -3.41[/tex]
Pvalue of the test and decision:
The pvalue of the test is the probability of finding a mean less than 64, which is the pvalue of t = -3.41, found on the t-table with 36 - 1 = 35 degrees of freedom on a one-tailed test.
With calculator help, the pvalue is 0.0083.
The pvalue of the test is 0.0083 < 0.1, which means that there is enough evidence to conclude that residents of Legacy Ranch use less water on average
On a certain hot summer day, 606 people used the public swimming pool the daily prices are 1.50 for children and 2.00 for adults the receipts for admission totaled 1042.50 how many children and how many adults swam at the public pool that day
Answer:
rsgsadfg
Step-by-step explanation:
d dhrtyeyerte
In the equation 2r - 7 = 15, what value of r makes this equation true?
Answer:
r = 11 makes 2r - 7 = 15 true.
Step-by-step explanation:
2r - 7 = 15
Add 7 to both sides.
2r = 22
Divide by 2.
r = 11
Proof:
2r - 7 = 15
2(11) - 7 = 15
22 - 7 = 15
15 = 15
please help me please
Answer:
the answer is B, aka 10
Step-by-step explanation:
my calculator
Answer: tbh i think its 10
Step-by-step explanation:
I need to add words but plz help me im stuck
Answer:
A
Step-by-step explanation:
I think it is A because that measures the height of the triangle
Answer:
Option A shows the height of the triangle
Hope this helps!
can someone help me answer this please?
Answer:
300km
[tex]80km \times 3.75hrs = 300km[/tex]
300km
80km \times 3.75hrs = 300km80km×3.75hrs=300km
Graph the inequality. 3x+4y>20
Answer:
y=-3/4x+5
Step-by-step explanation:
3x+4y>20
4y>-3x+20
y>-3/4x+5
Please help me with questions!
Answer:
[tex]3)\ x = 8[/tex]
[tex]4)\ x = 12[/tex]
Step-by-step explanation:
Given
The similar triangles
Required
Solve for x
TUV to TLM implies that, the corresponding sides are:
[tex]TU \to TL[/tex]
[tex]TV \to TM[/tex]
[tex]UV \to LM[/tex]
To solve for x, we use the following equivalent ratios
[tex]TV : TM =TU:TL[/tex]
This gives:
[tex]24 : x + 8=36 : 24[/tex]
Express as fraction
[tex]\frac{24 }{ x + 8} =\frac{36 }{ 24}[/tex]
Cross Multiply
[tex]36(x + 8) =576[/tex]
Divide both sides by 36
[tex]x + 8 =16[/tex]
Subtract 8 from both sides
[tex]x = 8[/tex]
FGH to WVU implies that, the corresponding sides are:
[tex]FG \to WV[/tex]
[tex]FH \to WU[/tex]
[tex]GH \to VU[/tex]
To solve for x, we use the following equivalent ratios
[tex]FH : WU =FG:WV[/tex]
This gives:
[tex]x + 3 : 5 = 27 : 9[/tex]
Express as fraction
[tex]\frac{x + 3 }{ 5 }= \frac{27 }{ 9}[/tex]
[tex]\frac{x + 3 }{ 5 }= 3[/tex]
Cross Multiply
[tex]x + 3 = 3 * 5[/tex]
[tex]x + 3 = 15[/tex]
Subtract 3 from both sides
[tex]x = 12[/tex]
I NEED HELP
PLEASE!!!
Answer:
1:False
2:True
3:True
4:True
I will give brainlist to who can answer these 4 questions correctly.
For 11 :
Height of the triangle is 7.2 in Area is 30.2 in .Now , We'll find the Base :
Area of Triangle = 1/2 × b × h :
30.2 = 1/2 × b × 7.2
30.2 = 3.6 × b
30.2 / 3.6 = b
8.3 in = b
Now , we can say that the base is 8.3 in .
For 12 :
Area of Triangle = 1/2 × b × h :
25.5 = 1/2 × 11.1 × h
25.5 = 5.5 × h
25.5 / 5.5 = h
4.6 cm = h
Now , we can say that the height is 4.6 cm .
Barak asked 50 students which type of flower they liked best. The results are displayed in the pie chart. If Barak asked 200 students which flower they liked best, how many students would you predict would choose tulips?
A. 15
B. 30
C. 60
D. 67
Answer:
C. 60 among 200 students would like Tulip (Assuming pie chart - 15 among 50 students like Tulip)
Step-by-step explanation:
Percent students liking tulip = (Tulip liking students / Total students) x 100
= (15 / 50) x 100 = 30%
Expected students to like Tulip among 200 students = 30% of 200
( 30 / 100 ) x 200
= 60 students
Hey add me ages 11-13 please
What is the voline of the figure below?
6.5A
8 ft
O A 54.43 cu. ft.
OB 108.85 cu. ft.
le
O C 353.77 cu. ft.
OD 1,061.32 cu. ft.
Answer:
it's 353.77
Step-by-step explanation:
V=πr2h
3=π·6.52·8
3≈353.95277
Anne had seven times as many stickers as Jasminka. Anne then lost 13 stickers at school. If x represents the number of stickers that Jasminka has, which expression below represents the number of stickers Anne has left?
A. 7(x - 13)
B. 7x - (x - 13)
C. 7x - 13
D. (7x + 13) - x
Drag each tile to the correct box.
Tickets for all of the described charity raffles cost $2 per ticket. Arrange the raffles in ascending order of their expected values to the player.
Answer:look at attachments
Step-by-step explanation:
Got 100% on Plato
which graph is the correct one ?
Answer:
For the First image the second one and for the Second image the first one
Step-by-step explanation:
Is the histogram uniform, symmetric, or skewed?
A. uniform
B. symmetric
C. skewed
Answer:
symmetric
Step-by-step explanation:
i just did this unit
can someone help me with math I don’t really understand it
1.) Crown pls ;)
A.) The domain is (-∞,∞) or (-infinity, infinity)
B.) The range is (0,∞) or (0, infinity)
C.) The y-intercept is (0,6)
D.) x-axis
E.) Base
2.)
ramesh can complete a piece of work in 10 days he worked for 4 days and left. if dinesh complete the remaining part of the work ,how much work was done by dinesh
Answer:
100% of the work was done by him
There are 3 circles and 6 triangles. What is the simplest ratio of circles to triangles?
Answer:
1:2
Step-by-step explanation:
..........................
In middle school 2/5 of boy makeup 250 percent of kids
Answer:
1
Step-by-step explanation:
250 percent of 2/5 is 1!
Why is simple interest simple and when is it used?
Answer:
Simple interest is the cost of using or borrowing money without compound interest or interest on interest. Simple interest works in your favor when you're a borrower because it keeps the overall amount that you pay lower than it would be with compound interest
Step-by-step explanation:
Answer:
Simple Interest is considered "Simple" due to it's straight-forward method; where you add your annual interest rate (%) to your initial principal value, instead of compound which you add your annual interest rate (%) onto your new principal value.
Simple interest is usually used to calculate their first year interest ($).
Which of the following is the total distance, in miles, that Howard runs everyday?
Answer:
a
Step-by-step explanation:
Which expression is equivalent to -21 + 28x?
Find the value of c that makes each trinomial a perfect square. Then write the trinomial as a perfect square.
6. x2 – 20x + c
a. c = 64; (x – 8)2 b. c = 20; (x – 10)2 c. c = 100; (x + 10)2 d. c = 100; (x – 10)2
Answer:
d. c = 100; (x – 10)²
Step-by-step explanation:
Note that (x+a)²=x²+2ax+a².
In our case, 2a=-20, so 'a' must be -10.
Since c=a², and a=-10, c=(-10²)=100.
Since a=-10, the perfect square is (x – 10)²
13. Simplify the following:
Answer:
x^8
Step-by-step explanation:
x^3 x x^5
=x3*x5
=(x*x*x) * (x*x*x*x*x)
=x*x*x*x*x*x*x*x
=x8
What’s the answer??
15 points
Answe
5
Step-by-step explanation:
$40,000 is invested at a rate of 5.7% that is compounded semiannually.
How much money is in the account after 17 years?
Answer:
$[tex]$78760.00[/tex]
Step-by-step explanation:
You want to calculate the interest on $40000 at 5.7% interest per year after 17 years.
The formula we'll use for this is the simple interest formula, or:
[tex]I=P*r*t[/tex]
Where:
P is principal amount, $40,000r is the interest rate, 5.7% per year, or in decimal form, [tex]\frac{5.7}{100} =0.057[/tex]t is the time involved, 17 yearsTo find the simple interest we multiply [tex]40000*0.057*17[/tex] to get
The interest rate is $38,760
Usually now, the interest is added onto the principal to figure some new amount after 17 years.
or 40000.00 + 38760.00 = 78760.00
=$78,760