2 2/3 - 1 1/2 - 4/5
what does it equal
Answer:
11/30
Step-by-step explanation:
Do you need an explanation?
what is thecentre and diameter of the circle with equation
[tex]x {2} + {y2} - 2y + 1 = 16[/tex]
Answer:
The exact value of sin 22.5° using the half-angle formula is √(2 - √2) / 2 or 0.38
Step-by-step explanation:
Let us consider θ = 22.5 º
Therefore, sin2θ = [(1− cos 2θ) / 2] -------(1)
If θ = 22.5° then 2θ is 45°.
On substituting the value of θ in equation (1), we get
sin2 22.5° = [(1− cos (2 × 22.5°)) / 2]
sin2 22.5° = [(1− cos 45°) / 2]
sin2 22.5°= [ [1 - (1 / √2)] / 2 ]
sin2 22.5°= (2 - √2) / 4 [ on simplifying the above RHS value ]
sin 22.5° = [√(2 - √2) / 2]
After substituting the value of √2 as 1.414 in the above equation, we get
sin 22.5°= 0.38
Find the value of each variable. 22, 30, x.
x=
y=
(Simplify your answers. Type exact answers, using radicals as needed.
please hurry for fifty points!
Answer:
11 and 11 root 3
This is because it is a 30 60 90 triangle, making it x, x root 3, and 2x.
Answer:
x = 11, y = 19.05
Step-by-step explanation:
sin 30 = x/22
22*sin 30 = x
22*0.5 = x
11 = x
tan 30 = 11/y
0.577350269 = 11/y
y = 11/0.577350269
y = 19.0525589
y= 19.05
Hope this helps :)
Solve the system of equations with substitution or elimination method. please help 2x+y=4 and 6x+7y=12
Answer:
x=2-y/2
y=12/7-6x/7
Step-by-step explanation:
Un triángulo rectángulo ABC recto en B , en la region relativa al lado AB se ubica el punto P, tal que la m
this queation is tricky give me a sec
Step-by-step explanation:
**20 POINTS + BRAINLIEST** Please help me with the math question!
Answer:
1/6.2=15/x
Step-by-step explanation:
15:x=1:6.2
Answer:
D. [tex]\frac{1}{6.2} =\frac{15}{x}[/tex]
93 meters
Step-by-step explanation:
Howard has a scale model of the Statue of Liberty
The model is 15 inches tall.The scale of the model to the actual statue is 1 inch: 6.2 meters1 inch = 6.2 meters
15 inches = ? meters
[tex]\frac{1}{6.2} =\frac{15}{x}[/tex] <= cross multiply
1x = 93 <== divide both sides by 1
/1 /1
x = 93 meters <== the height of the model, our final answer
Hope this helps!
Consider this composite figure made of a cone and a cylinder. a cone has a height of 8 centimeters and radius of 3 centimeters. a cylinder has a height of 7 centimeters and radius of 3 centimeters. what is the volume of the cone? cone v = 1 3 bh v = 1 3 πr2h v = 1 3 π32(8) v = 1 3 π(9)(8) v = 1 3 π(72) the cone has a volume of π cm3
The volume of the cone with a radius of 3 cm and height of 8 cm is 24 π cm³. Then the correct option is D.
What is Geometry?It deals with the size of geometry, region, and density of the different forms both 2D and 3D.
Consider this composite figure made of a cone and a cylinder.
A cone has a height of 8 centimeters and a radius of 3 centimeters.
A cylinder has a height of 7 centimeters and a radius of 3 centimeters.
Then the volume of the cone will be
We know that the volume of the cone
[tex]\rm Volume = \dfrac{1}{3} \pi r^2 h[/tex]
Then we have
[tex]\rm Volume = \dfrac{1}{3} \ \pi \ 3^2 *8\\\\\rm Volume = \dfrac{1}{3} \ \pi *9*7\\\\\rm Volume = \dfrac{1}{3} \ \pi \ 72\\\\Volume = 24 \ \pi[/tex]
More about the geometry link is given below.
https://brainly.com/question/7558603
Answer:
24
Step-by-step explanation:
Got it right on the question
3. What is the slope of a line that passes
through (0,-5) and (8,27)?
Answer:
4.
Step-by-step explanation:
Slope = difference in y coordinates / difference in the corresponding x coordinates
(27 - (-5)) / (8 - 0)
= 32 / 8
= 4.
Answer: Well, The entered points belong to an increasing, linear function.
Equation: y = 2.75x + 5.
You're key in this will be y=mx+b right?
Then you're M in y=mx+b is your slope. Therefore, if we take a look at our M in the slope we got,.....y = 2.75x + 5......it's-
2.75.
So you're slope is y= 2.75x
I'm not that great at explaining but yeah, i tried lolz :3
A flower-delivery service charges $39.95 per flower arrangement and $2.99 for delivery. The total cost y is represented by the function y=39.95x+2.99 , where x is the number of flower arrangements.
Which of the following sets of numbers would be appropriate input values for the given situation? Select all that apply.
A) Integer
B) Only Zero
C) Whole Number
D) Rational Number
E) Positive Integer
F) Negative Number
Answer:
D
Step-by-step explanation:
Out of those choices, only a rational number is going to work. There are too many decimals in the given equation to give an integer, zero, a whole number or a minus number.
D
……………………868685758584984444
Answer: 86868575854984444 121213435457642222
Step-by-step explanation:
The seventh-grade class is selling boxes of votive candles as a fundraiser. The first box purchased costs $14.00 , and each additional box costs $10.00 .
a. Is the relationship between the number of additional boxes of candles purchased and the total money spent linear?
Yes
Question 2
Explain your answer.
Answer:
b. C= 14+(10b)
c. C = 14+ ( 10 x 3) = 14+30 =44
Step-by-step explanation:
Hope this helps
Satellite dishes are shaped like parabolas to optimally revive signals. The cross section of a satellite dish can be modeled by the function y= 1/8(x^2-4) where x and y are measured in feet. The x-axis represents the top of the opening dish.
Write a quadratic function that models the cross section of the satellite dish that is 6 feet wide and 1.5 deep.
The cross section of the satellite dish is an illustration of a quadratic function
The quadratic function that models the cross-section is y = 1/6(x^2 - 9)
How to determie the equation of the cross-section?The given parameters are:
Width = 6 feet
Depth = 1.5 feet
Express the width the sum of two equal numbers
Width = 3 + 3
The above means that, the equation of the cross section passes through the x-axis at:
x = -3 and 3
So, we have:
y = a(x - 3) * (x + 3)
Express as the difference of two squares
y = a(x^2 - 9)
The depth is 1.5.
This is represented as: (x,y) =(0,-1.5)
So, we have:
-1.5 = a(0^2 - 9)
Evaluate the exponent
-1.5 = -9a
Divide both sides by -9
a = 1/6
Substitute 1/6 for a in y = a(x^2 - 9)
y = 1/6(x^2 - 9)
Hence, the quadratic function that models the cross-section is y = 1/6(x^2 - 9)
Read more about quadratic functions at:
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HELP.
can someone give me an explanation of how to do this? i just want to know how to apply the explanation to other problems!
Mid point of any two points (x1,y1) and (x2,y2)
is ((x1+x2)/2,(y1+y2)/2)
using this
we get coordinates of d are (a,-2b)
Which scatterplot represents the data that would be best modeled by a quadratic function?
A scatter plot uses dots to represent values for two different numeric variables and determine whether or not two variables have a relationship or correlation.
What is a scatterplot?
Your information is incomplete. Therefore, an overview of the scatterplot will be given. A scatterplot simply means is a type of plot using Cartesian coordinates to display values for two variables for a set of data.
In this case, a scatter plot uses dots to represent values for two different numeric variables and determine whether or not two variables have a relationship or correlation.
The position of each dot on the horizontal and vertical axis shows the values for an individual data point.
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12 , − 7 , − 20 , − 9 , − 5 , 6 , 2 , − 12 , 15 , 16 State the median.
To find the median, we must order the numbers from least to greatest and find the middle number which will be the median.
List in order: -20, -12, -9, -7, -5, 2, 12, 15, 16
The number in the middle position is -5 <-- median
Hope that helps!
1. During which of the following situations would the government most likely have a
contractionary fiscal policy?
A. when the volume of net exports is unusually low
B. when the economy is in a trough of the business cycle
C. when the inflation rate is negative
D. when the level of economic output is running unusually high
E. when the unemployment rate is running unusually high
2. During a recession, unemployment will ________, tax revenue collected by the
government will ________, and spending by the government will ________.
A. decrease; decrease; decrease
B. increase; increase; decrease
C. decrease; decrease; increase
D. increase; decrease; increase
E. decrease; increase; decrease
3. According to the new classical critique of fiscal policy, why do consumers increase their
savings in response to government spending?
A. They shift their consumption toward more expensive goods, which must be saved up
for.
B. Government spending incentivizes firms to lower prices, which means consumers
spend less.
C. Government spending drives interest rates up and so makes saving more profitable.
D. When workers’ earnings increase, they are able to save a greater percentage of their
total earnings.
E. They believe they will eventually need the saved money when they have to pay
higher taxes.
A situation when the government most likely have a contractionary fiscal policy is D. when the level of economic output is running unusually high.
What is contractionary fiscal policy?Contractionary fiscal policy is when the government collects more money than it spends. This is usually done by increasing taxes and reducing government expenditure.
During a recession, unemployment will increase tax revenue collected by the government will decrease, and spending by the government will increase.
According to the new classical critique of fiscal policy, consumers increase their savings in response to government spending because they believe they will eventually need the saved money when they have to pay higher taxes.
Learn more about fiscal policy on:
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so it's got like money before and after and it has indepent and dependent variable
Answer:
The dependent variable is the amount of money you earn because the amount of money you earn depends on how many chores you do.
Describe how to compare the two ratios 5:8 to 7:9. Tell each step to set up the ratios, then explain what to do to be able to compare the ratios. Finally make sure to answer how the ratios compare.
Answer:
5/8 is smaller.
Step-by-step explanation:
A ratio is just a different type of fraction, a 5:8 ratio means 5/8 which is 0.625. A 7:9 ratio equals 7/9 which is 0.777777
Then to compare them you see which is smaller or bigger.
0.77777 is bigger than 0.625 so we know that 0.77777777 which was the 7:9 ratio is the bigger one.
Question: The lengths of the diagonals of a rhombus are 5 inches and 8 inches. What are the interior angle measures of the rhombus?
How you must answer:
- Sketch - draw the sketch:
- Known:
-Unknown:
-Rationale:
-Exquation and expression:
Steps:
- Include a sketch
-State the Known
-State the Unkown and represent with a variable
-Provide a rationale
-Include the equation, exact answer, and decimal approximation
Answer:
The interior angles are approximately 64.02 degrees and approximately 115.98 degrees
The drawing is below.
==========================================================
Explanation:
A rhombus always has perpendicular diagonals. The two diagonals form four identical (aka congruent) right triangles as the figure shows below.
Notice how I've marked x and y as the unknown acute angle measures. Also, the two diagonals divide each other in half. The 8 splits into 4+4 and the 5 splits into 2.5+2.5
----------------------
Focus on one of the right triangles (they're all identical so it doesn't matter which you go for). We can use the tangent ratio to help determine the value of x.
[tex]\tan(\text{angle}) = \frac{\text{opposite}}{\text{adjacent}}\\\\\tan(\text{x}) = \frac{2.5}{4}\\\\\tan(\text{x}) = 0.625\\\\\text{x} = \tan^{-1}(0.625)\\\\\text{x} \approx 32.005383^{\circ}\\\\\text{x} \approx 32.01^{\circ}\\\\[/tex]
Angle x is roughly 32.01 degrees.
Make sure your calculator is in degree mode.
---------------------
Similar steps can be done to find the value of y.
[tex]\tan(\text{angle}) = \frac{\text{opposite}}{\text{adjacent}}\\\\\tan(\text{y}) = \frac{4}{2.5}\\\\\tan(\text{y}) = 1.6\\\\\text{y} = \tan^{-1}(1.6)\\\\\text{y} \approx 57.994617^{\circ}\\\\\text{y} \approx 57.99^{\circ}\\\\[/tex]
Or you could use the value of x to compute y like this
x+y = 90
y = 90 - x
y = 90 - 32.005383
y = 57.994617
y = 57.99
---------------------
Once we figure out x and y, it's simply a matter of doubling those values to get the interior angles of the rhombus. This is because we have the x angles next to each other to form two of the interior angles. So we have x+x = 2x = 2*32.01 = 64.02 degrees as one interior angle of the rhombus. The value is approximate.
The other interior angle is roughly y+y = 2y = 2*57.99 = 115.98 degrees
Notice how 2x+2y = 64.02+115.98 = 180
For any rhombus, the adjacent angles are supplementary (they add to 180 degrees).
PLEASE HELP ASAP!!
A population of zombies in Happy Town, USA doubles every week. The number of zombies in Happy Town is currently 75. How many more zombies will there be after an additional 4 weeks? (no commas just numbers)
Answer:
1200
Step-by-step explanation:
since the first week has 75 doubling it is 150 doubling that is 300 doubling that is 600 doubling that for the final week is 1200.
1200 more zombies will there be after an additional 4 weeks.
What is Sequence?A sequence is an enumerated group of items in mathematics where repetitions are permitted and order is important. It has members (also known as elements or phrases), just like a set. The length of the series is the number of elements (potentially infinite).
At initial the zombies are= 75
Now, the zombies doubles at every week.
So, After 1 st week the population of zombies are
= 75 x 2
= 150
Then, After 2 nd week the population of zombies are
= 150 x 2
= 300
Then, After 3 rd week the population of zombies are
= 300 x 2
= 600
Then, After 4th week the population of zombies are
= 300 x 2
= 1200
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#SPJ2
need some help with this question in the image
Answer:
1a. first 7×9=63 Then substracting 16 we get 47 and 2-47= -45
Answer:
a. - 77
b. 4
c. 5x-14
d. 14
Step-by-step explanation:
a. 2-(7*9)-16
=> 2-63-16
=>(-61) - 16
=> -77
b.64 / 4+(3*4)
=> 64 / 4+12
=> 64 / 16
=> 4
c. 3x+2(x-7)
=> 3x+2x - 14
=> 5x-14
d. 5 + 6^2/ 4
=> 5+ 36/4
=> 5+9
=> 14
[tex]\left \{ {{x+4y=2} \atop {2x+5y=7}} \right.[/tex]
Write 0.5 repeating as a fraction
Answer: 5/9
Step-by-step explanation: I took a test on this ;)
Family B lives in Boise, Idaho. Their total household monthly income is
$
4
,
675
.
Use the graph to calculate the central angle of each section for Family B. Then, complete the following table. Note: Express each angle measure as a number, rounded to the nearest tenth of a degree.
Family B
1. Housing
°
2. Food
°
3. Childcare
°
4. Transportation
°
5. Insurance
°
6. Other Needs
°
7. Taxes
°
The central angles of the monthly budget of family B are 7.2 degrees, 57.6 degrees, 57.6 degrees, 64.8 degrees, 46.8 degrees, 100.8 degrees and 25.2 degrees, respectively
How to determine the central angles?The central angles of each family is calculated using:
Angle = Percentage * 360
Using the data on the circle graph, we have:
Taxes = 2% * 360 = 7.2 degrees
Housing = 16% * 360 = 57.6 degrees
Food = 16% * 360 = 57.6 degrees
Childcare = 18% * 360 = 64.8 degrees
Transportation = 13% * 360 = 46.8 degrees
Insurance = 28% * 360 = 100.8 degrees
Other needs = 7% * 360 = 25.2 degrees
Read more about circle graphs at:
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Please help I'm giving 40 points.
Answer:
Please see explanation
Step-by-step explanation:
look at the photo
find the total surface area of this triangular prism
answer quick
Answer:
716
Step-by-step explanation:
Triangle = bh / 2
24 x 14 = 336, you should divide by 2 but there is 2 of them (front and back) so cancels out. 10 x 24 is 240 and cancels for same reason. 336 + 240 = 576. 14 x 10 = 140 and 576 + 140 = 716
Answer:
976 cm^2
Step-by-step explanation:
area of triangle is 1/2 times base times height
notice we have two triangles
so 14 * 24 * 0.5 is 168
168 times 2 is 336
now we have a rectangle on the bottom so its area is base times height
14 times 10 is 140
and now we have two rectangles on either side
25 times 10 is 250
250 times 2 is 500
500+140+336
976 cm^2
What happened to rectangle A to become rectangle B in the diagram below?
dilated and then translated
dilated and then rotated 270°
dilated and then reflected
dilated and then rotated 90°
Answer: Dilated and then translated
Step-by-step explanation:
Answer:
dilated and then translated
Step-by-step explanation:
Rectangle A has been enlarged (dilated) and then translated up and to the right.
Suppose that John wants to calculate a 96% confidence interval for a population mean from a sample of
size n = 15. What is the appropriate critical value t*?
a. 2.145
c. 2.264
b. 2.249
d. 2.054
Answer:
A I believe try A that should be it
A business man has 200 bags of maize flour each weighing 50000 grammes. Find the total weight of the bags in kilograms
Answer:
10,000 ★ soz if im wrong
Step-by-step explanation:
I hope the best
Answer:
10,000kg
Step-by-step explanation:
200 bags
1bag=50,000g
200bags=?
cross multipy
200bags x 50,000g
---------------------------
1bag
=10 000 000grams
1000g=1kg
10,000,000g
10,000,000/1000
=10,000kg
brainiest please
1/(√2+√3)-√4 pls explain i dont understand
Hey there!
1/(√2+√3)-√4
=−2−√2+√3
(Decimal: -1.682163)