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Related Questions
if 2f(x)-3f(1/x)=x^2 determine f(2)
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hope this helped
If the volume of the pyramid shown is 108in, what is the area of its base? 9 in= height
a. 4 in
b. 12 in
c. 24in
d. 36 in
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Answer: D, 36in.
Step-by-step explanation:
Write the equation of the line that passes through (−3,1) and (2,−1) in slope-intercept form
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Answer:
[tex]y=-\frac{2}{5}x-\frac{1}{5}[/tex]
Step-by-step explanation:
The equation of a line is y = mx + b
Where:
m is the slopeb is the y-interceptFirst, let's find what m is, the slope of the line.
Let's call the first point you gave, (-3,1), point #1, so the x and y numbers given will be called x1 and y1.
Also, let's call the second point you gave, (2,-1), point #2, so the x and y numbers here will be called x2 and y2.
Now, just plug the numbers into the formula for m above, like this:
[tex]m = -\frac{2}{5}[/tex]
So, we have the first piece to finding the equation of this line, and we can fill it into y=mx+b like this:
[tex]y=-\frac{2}{5}x + b[/tex]
Now, what about b, the y-intercept?
To find b, think about what your (x,y) points mean:
(-3,1). When x of the line is -3, y of the line must be 1. (2,-1). When x of the line is 2, y of the line must be -1.Now, look at our line's equation so far: [tex]y=-\frac{2}{5}x + b[/tex]. [tex]b[/tex] is what we want, the -[tex]-\frac{2}{5}[/tex] is already set and x and y are just two 'free variables' sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the two points (-3,1) and (2,-1).
So, why not plug in for x and y from one of our (x,y) points that we know the line passes through? This will allow us to solve for b for the particular line that passes through the two points you gave!
You can use either (x,y) point you want. The answer will be the same:
(-3,1). y = mx + b or [tex]1=-\frac{2}{5} * -3 + b[/tex], or solving for b: [tex]b = 1-(-\frac{2}{5})(-3)[/tex].[tex]b = -\frac{1}{5}[/tex]. (2,-1). y = mx + b or [tex]-1=-\frac{2}{5} * 2 + b[/tex], or solving for b: [tex]b = 1-(-\frac{2}{5})(2)[/tex]. [tex]b = -\frac{1}{5}[/tex].See! In both cases, we got the same value for b. And this completes our problem.
The equation of the line that passes through the points (-3,1) and (2,-1) is [tex]y=-\frac{2}{5}x-\frac{1}{5}[/tex]
find the volume of the composite figure
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Answer:
8064
Step-by-step explanation:
Multiply all the sides
6x4x12x2x14
Answer:
384 cu. cm
Step-by-step explanation:
The figure is comprised of two rectangular prisms. One prism has dimensions of 6, 4 and 2 and the other prism has dimensions of 14, 12 and 2
Vol of a rectangular prism = lwh
Total volume = 6(4)(2) + 14(12)(2)
= 48 + 336
= 384 cu. cm
find the value of the variable and the length of each chord. round your answers to the nearest tenth
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Answer:
x = 3, JL = 17, MN = 13
Step-by-step explanation:
Given 2 intersecting chords in a circle , then
The product of the parts of one chord is equal to the product of the parts of the other chord, that is
14x = 7 × 6 = 42 ( divide both sides by 14 )
x = 3
Then
JL = x + 14 = 3 + 14 = 17
MN = 6 + 7 = 13
The temperature at midnight is -5°C and is expected to drop 12°
by sunrise. What is the expected temperature at sunrise?
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Answer:
-17 degrees Celsius.
Step-by-step explanation:
If the temperature at midnight is -5, and it is supposed to drop 12 more by sunrise, the 12 degrees are subtracted from the initial temperature.
-5 - 12 = -17 degrees by sunrise.
10
13
16
19
22
25
28
What is the mean?
What is the standard deviation?
What percentage of values should fall between 19 and 22?
Which value has a score of -2?
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Answer:
mean is 19
Step-by-step explanation:
sorry that's all I know
10+13+16+19+22+25+28=133
Now divide it by 7 since there are 7 numbers
133/7=19
given m||n,find the value of x
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Answer:
8x+5 + 2x+5 = 180
10x+10=180
10x =170 = x = 17
Step-by-step explanation:
Answer:
answer: x = 17 Hope this helps!
2 x 17 + 5 = 39 8 x 17 + 5 = 141
Straight angles are 180 degrees
39 + 141 = 180
So x = 17
Write the domain of
Y= x+1/
(x+2)(x+10)
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(-∞,-10)∪(-10,-2)∪(-2,∞)
Or
[tex]\left\{x|x\ne-2,-10\right\}[/tex]
Both are correct.
ANSWER FOR BRAINLIEST:
The low temperatures for the last five days are: Low Temperatures: 62, 46, 50, 52, 55.
Find the MEAN ABSOLUTE DEVIATION (MAD) of the temperatures
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Answer:
4.4
Step-by-step explanation:
The mean absolute deviation is 4.4, and you can just search "mean absolute deviation calculator ".
You deposit $100 in your bank account. The account earns 2% simple interest in 5 years. How much interest did you earn?
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–6z^2− 8z + 8 = 0
sole using the quadratic formula
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Answer:
Simplifying
6z2 + -8z + 1 = 0
Reorder the terms:
1 + -8z + 6z2 = 0
Solving
1 + -8z + 6z2 = 0
Step-by-step explanation:
Can someone pleaseeee help and if you’re correct i’ll give brainliest
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Answer:
108 mm^3
Step-by-step explanation:
the formula for a right rectangular pyramid is lwh/3, so if you multiply 6, 6, and 9, you'll get 324
324/3=108
Deborah had 3 1/4 yards of ribbon she used 3/8 of a yard for a project how much ribbon does she have left
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Question 23 of 25 What is the probability of flipping a coin 85 times and getting tails 30 times or fewer? Round your answer to the nearest tenth of a percent. A. 99.8% B. 33.2% C. 0.4% D. 95.9%
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Answer:
I think its B
Step-by-step explanation:
Solve for X.
Then, Solve for Y.
Finally, Solve for Z.
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Answer:
x = 6
y = 6[tex]\sqrt{2}[/tex]
z = 12
Step-by-step explanation:
the ratio of sides in a 30-60-90° triangle is, respectively, 1 : [tex]\sqrt{3}[/tex] : 2
therefore, 'x' must have a measure of 6
which means the hypotenuse must have a measure of 12
other triangle is a 45-45-90° triangle whose sides are in a ratio of 1 to [tex]\sqrt{2}[/tex]
this means that 'y' must be 12/[tex]\sqrt{2}[/tex] which is 6[tex]\sqrt{2}[/tex]
'z' must be 6[tex]\sqrt{2}[/tex] · [tex]\sqrt{2}[/tex] = 12
2. On a scale drawing with a scale of 1 in. to 5 ft, a flagpole is 4 inches tall. How tall is the actual
flagpole?
A. 20in
B. 10in
С. 20ft
D. 200ft
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Answer:
200
Step-by-step explanation:
ASAP someone please put these answers in scientific notation.
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Square tiles measuring 4 inch on each side will be used to tile a 1-foot by 1-foot area. How many of these tiles are needed?
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Answer:9
Step-by-step explanation:
4 inches fits into 12 inches three times. Three rows multiplied by three columns equals 12.
Hope that helps!
solve for x. The segments labeled in the picture are the tangets.
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Hope it helps u!!!!
Para reunir dinero para su gira de estudios , los alumnos de un curso deciden vender números de una rifa que se encuentran numeradas del 1 al 100 ¿Cual es la probabilidad de ganar en la rifa si se compran todos los numeros que sean multiplos de 3 o de 5?
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Respuesta:
0.53
Explicación:
Para calcular la posibilidad del evento A: "ganar la rifa comprando todos los números múltiplos de 3 o 5", debemos usar la siguiente fórmula.
P(A) = casos favorables / casos posibles
Evaluemos primero todos los casos que son múltiplos de 3, entre 1 y 100: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 87, 90, 93, 96, 99. En total son 33.
Ahora, evaluemos todos los casos que son múltiplos de 3, entre 1 y 100: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100. En total son 20.
El número total de casos favorables es 33 + 20 = 53.
El número de casos posibles es el total de números de 1 a 100, es decir 100.
Luego P(A) = 53/100 = 0.53.
Find the gradient of the line segment between the points (-1,3) and (1,-2).
Give your answer in its simplest form.
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The answer is -5/2, hope this helps you!
What is the volume of the composite solid? 6 m 4 m 3 m 4 m 4 m
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Answer:
Please read explanation
Step-by-step explanation:
A picture would be helpful, but I think the answer might be (6x4x3)+(3x4x4). If your shape is made up of many parts, you should find the volume of each shape then add them up to find the total volume. (To find volume, multiply base x height x width) If you could give a picture, it would be very helpful because I don't really know which numbers I should multiply to find volume. I hope this explanation helps, and please comment if you need to ask me anything.
Answer:
Answer is 136 cubic meters
Step-by-step explanation:
Mackenzie made 38 of 50 free throws. What is the
experimental probability that Mackenzie will NOT
make the next free throw she attempts?
A- 6/25
B- 12/25
C- 19/25
D- 21/25
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A I believe because Against the odds of 38/50 would be 12/50 that is not an option so split in half this would be A cause its an equivalent fraction
Pythagorean Theorem Level 2
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Answer:
10
Step-by-step explanation:
Pyth. Theorem:
a = leg, b = leg, c = hypotenuse
[tex]c = \sqrt{ {a}^{2} + {b}^{2} }[/tex]
The length of the third side
=
[tex]\sqrt{ {5 \sqrt{3} }^{2} + {5}^{2} }[/tex]
=
[tex]\sqrt{75 + 25}[/tex]
=
[tex]\sqrt{100}[/tex]
= 10
I’m just confused help!
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Answer:
Step-by-step explanation:
180
Please please help find height and volume of pyramid!!!
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Answer:
Height of the pyramid:
h = [tex]\sqrt{22.1^2 - (28/2)^2}[/tex] = [tex]\sqrt{292.41}[/tex] = 17.1 mVolume:
V = 1/3BhV = 1/3*28²*17.1 = 4468.8 m³PLEASE HELP!!!
!!!!!
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Answer:
y=63, x=20, x=47, b=70, c=89, x=133
Step-by-step explanation:
1) y=63- alternate angles are the same
2) 4x+5x=180
9x=180
x=20
3) x=47
4) b=70- angles on a line equal to 180
c=89- angles in a triangle add up to 180
5) x=133- angles that are alternate are the same
Abby is buying a skateboard for $70 . The sales tax is 8% . Find the total cost of the skateboard , including sales tax
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Answer:
First you need to multiply $70 and 8%, which will equal $5.60, and then you have to add it to $70, which will give you $75.60 . Abby would need to pay 75.60 dollars.
Step-by-step explanation:
-8b-11w+10 simplify this has been a hard problem for me
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Answer:
-8b-11w+10
Step-by-step explanation:
The first term has a variable b
The second term has a variable w
The third term is a constant
They cannot be combined