For the 2003 solar eclipse, it lasted 217 seconds (3 minutes, 37 seconds).
The simplest form of
[tex]4 \sqrt{576} [/tex]
Answer:
96.
sqrt(576) is 24.
And 24 x 4 = 96.
Hope this helps!
96
Step-by-step explanation:4√576 =
= 4√2⁶ₓ3²
= 4√(2³)²ₓ3²
= 4ₓ8ₓ3
= 32ₓ3
= 96
What would be the equation for "two times x subtracted by x squared"?
Answer:
[tex]\Huge \boxed{-x^2+2x}[/tex]
Step-by-step explanation:
2 times x subtracted by x².
[tex]\Rightarrow 2 \cdot x-x^2[/tex]
[tex]\Rightarrow 2x-x^2[/tex]
Rearranging the expression.
[tex]\Rightarrow -x^2+2x[/tex]
Answer:
2x -x^2
Step-by-step explanation:
[tex]2(x) - x^2\\= 2x-x^2[/tex]
Maria and Ming start at the same point and drive in opposite directions. Maria drives 48 mph and Ming drives 50 mph. How far apart will they be in 2 hours?
Answer:
196metres
Step-by-step explanation:
Maria drives 48 mph and Ming drives 50 mph.
We were told to find How far apart will they be in 2 hours which means that what distance have Maria and Ming passed in total.
Let us calculate how far did Maria go for 2 hours.
Which is
Velocity v = distance s/ time t
V= S1/t
48=s/2
S1= 96metres
Then we calculate how far did Ming go for 2 hours
v= S2/t
50=s/2
S2= 100metres
The total distance between them in two hours is (S1+S2)=96+100
=196metres.
Hence,they were 196 metres apart in 2 hours
Find the area of the polygon with the given vertices. J(-3,4), K(4,4), L(3,-3)
Answer:
A = 24.5 square unitsStep-by-step explanation:
[tex]J(-3,\,4)\ \ \implies\ y_J=4\\\\K(4,\,4)\ \ \implies\ y_K=4\\\\y_K=y_J\ \ \implies\ JK\parallel X{-}axis\ \implies\ H=|y_L-y_K|\quad\ \{for\ JK=base\}\\\\H=|-3-4|=|-7|=7\\\\\\ JK\parallel X{-}axis\ \implies\ B=JK=|x_J-x_K|=|-3-4|=7\\\\\\A=\frac12BH\\\\A=\frac12\cdot7\cdot7=24.5[/tex]
To solve -8p = 48, which of the following could you do to both sides of the equation? A. add -8 B. subtract -8 C. multiply by -8 D. divide by -8
Answer:
D. divide by -8
Step-by-step explanation:
he exponential expression 28 has a value of 256. Write two other exponential expressions that have a value of 256. Explain how you got your answers. (Begin by writing out 2 8as the product of 2s.)
Answer:
Two other exponents that results in 256 are [tex]16^2[/tex] and [tex]4^4[/tex]
Step-by-step explanation:
Given
[tex]2^8 = 256[/tex]
Required
Write two exponential expression that equals 256
[tex]2^8 = 256[/tex]
Expand 8 as 4 * 2
[tex]2^{4*2} = 256[/tex]
Using laws of indices, we have
[tex](2^4)^2 = 256[/tex]
2⁴ = 16; So, we have
[tex]16^2 = 256[/tex] --- This is one
Recall that
[tex]2^{4*2} = 256[/tex]
This can also be rewritten as
[tex]2^{2*4} = 256[/tex]
Using laws of indices, we have
[tex](2^2)^4 = 256[/tex]
2² = 4; So, we have
[tex]4^4 = 256[/tex] --- This is another one
Hence, two other exponents that results in 256 are [tex]16^2[/tex] and [tex]4^4[/tex]
The lengths of a certain species of fish were found to be normally distributed. The mean length is 73 cm with a standard deviation of 8 cm. In a school of 480 of these fish, about how many would be longer than 57 cm?
Answer:
251
Step-by-step explanation:
Given - Mean length of fish = μ= 73 cm
SD σ =8 c m
Number of fish having a length greater than 57 cm out of 480.
Find the value of z at x = 57
[tex]z= \frac{x-\mu}{\sigma} = \frac{57-73}{8}\\=\frac{-16}{8} = -2[/tex]
Area between z = − 2 and z = ∞
= Area between z = − 1 and z = 0 +
Area between z = 0 and z = ∞
=0.02275+0.5= 0.52275
Therefore number of fish having teeth greater than 57 cm
= 0.52275*480 = 5.2275*48 = 250.92 ≅251
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What is the area of the triangle?
7 ft.
4 ft.
6 ft.
square feet
Answer:
Area of the triangle = 12 square feet
Step-by-step explanation:
Area of a triangle is calculated by the formula,
Area = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]
From the picture attached,
Height of the given triangle = Vertical distance of the top vertex = 4 feet
Base of the triangle = 6 feet
Area of this triangle = [tex]\frac{1}{2}(6)(4)[/tex]
= 12 square feet
Therefore, area of the given triangle will be 12 square feet.
• (4xy^4)(– 2x^2y^5)
Answer:
This will be -8x^3y^9.
Jim takes great pride in decorating his float for the homecoming parade for his high school. With the $5000 he has to spend, Jim buys 5,000 carnations at $0.30 each, 4,000 tulips at $0.60 each, and 300 irises at $0.25 each. Write an inequality which describes how many roses, r, Jim can buy if roses cost $0.80 each.
Answer:
r = (5000 - [(5000 x 0.3) + (4000 x 0.6) + (300 x 0.25)])0.8
Simplified - r = 820
Step-by-step explanation:
I don't know how to explain it exactly, but I know you have to find out how much the carnations, tulips, and irises all cost,subtract that from how much money he has, and divide what left by the cost of the roses (by multiplying the 0.8 cents, because it's a decimal).
r = (5000 - [(5000 x 0.3) + (4000 x 0.6) + (300 x 0.25)])0.8
r = (5000 - [1500 + 2400 + 75])0.8
r = (5000 - 3975)0.8
r = 1025(0.8)
r = 820
WILL GIVE BRAINLIEST
A hospital did a 10 year study on patients who use his services. 1000 patients were randomly selected and followed over a period of 10 years to determine the average number of visits per year. By the end of the 10 year. Some of the patients had left the area. Identify the problem with the poll.
A) A nonresponse occurred
B) The relationship between two variables implies one causes the other
C) Some of the sample data are missing
D) The conclusion is based on a voluntary response sample
Answer:
b so it doesnt tell you how many people come to the hospital a day
Step-by-step explanation:
a--->b--->=c
Answer:
A) A nonresponse occurred
Step-by-step explanation:
We understand that in the span of 10 years, 1000 patients were monitored, and among those were some individuals who had moved. These certain individuals are not responsive anymore, and can not be a source of data, and the poll would be incorrect if the hospital decided to switch out the patients in the midst of the decade. Therefore we are to assume a nonresponse occurred. (To define nonresponse, it is simply a failure to respond, which is indeed what is defined for those who had moved.)
It is not B for the two variables have no correlation, it is not C for all patients were at first patrons and the problem did not explicitly state there was missing info, and D is incorrect for it said the sample group was selected at random. Therefore, with process of elimination, A would still be correct.
What scale factor would make circle A the same size as circle B? 1) The radius of circle A is 2 cm and the radius of circle B is 12 cm. 2) The radius of circle A is 4 cm and the radius of circle B is 3 cm. 3) The diameter of circle A is 20 cm and the radius of circle B is 5 cm. 4) The radius of circle A is 4 cm and the diameter of circle B is 20 cm.
Step-by-step explanation:
1) area of B = [tex]\pi r^{2}[/tex] = [tex]\pi* 12^{2}[/tex] = 452.4 cm^2
area of A is = [tex]\pi r^{2}[/tex] = [tex]\pi* 2^{2}[/tex] = 12.6 cm^2
A will be scaled 452.4/12.6 = 36 times
using the same method we can say that
2) 0.56 times
3) 0.063 times
4) 6.25 times
Answer:
Step-by-step explanation:
Area of circle = πr²
The scale factor A:B is as follow
1) 2:3
2) 16:9
3) 25:4
4) 4:25
solve for x, x-6≤3 simplify
Answer:
x≤9
Step-by-step explanation:
x−6≤3
Add 6 to both sides.
x≤3+6
Add 3 and 6 to get 9
x≤9
Answer: x ≤ 9
Step-by-step explanation: When solving an inequality, your goal is the same as it would be if you were solving an equation – to get the variable by itself or isolated on one side of the equals sign.
Since 6 is being subtracted from x, add 6 to both sides of the inequality.
On the left, the -6 +6 cancel out and on the right, 3 + 6 is 9.
So we have x ≤ 9.
Find the slope of the line y = -4x +
9
Simplify your answer and write it as a proper fraction, improper fraction, or integer
Answer:
The slope is - 4Step-by-step explanation:
Equation of a line is y = mx + c
where
m is the slope
c is the y intercept
From the question the equation of the line is
y = - 4x + 9
Comparing the equation with the general equation of a line above
Slope / m = - 4
Hope this helps you
Which term describes any number that cannot be expressed as a simple fraction?
real number
whole number
rational number
irrational number
Answer:
rational numbers are the number which can not expressed into simpler fraction
In the diagram, points Q, R, S and T are collinear and PR = RS. IF RS = 12 and RT = 30, find
a) QR
b) ST
c) QS
d) QT
Answer:
QR=12
ST=18
QS=24
QT=42
Step-by-step explanation:
The question tells us that PR is congruent to RS. But there's no point P in the line. So, I'm going to assume it's a typo and that they meant point Q.
So, we know that QR is congruent so RS. RS is 12 and RT is 30. With that information, we can find the other lengths:
1) QR
Since QR is congruent to RS and RS is 12, this means that QR is also 12.
2) ST
We know that RT is 30. RT is made by adding up RS and ST. In an equation, this is:
[tex]RT=RS+ST[/tex]
We know that RT is 30 and RS is 12. Thus, substitute:
[tex]30=12+ST\\ST=18[/tex]
Thus, ST is 18.
3) QS
QS is the length of QR plus RS. Since QR is 12 and RS is also 12, QS is 12+12 or 24.
4) QT is the length of the entire segment. The entire segment can be written as:
[tex]QT=QR+RT[/tex]
And since we already know that QR is 12 and RT is 30:
[tex]QT=12+30\\QT=42[/tex]
QT is 42.
In 1000 sq. meter of land a farmer cultivated 765 kg of rice with the wastage of 23.5%. I) Find the weight of the wastage. II) Find the weight and percentage of rice cultivated. 3) If the area has been increased 40 times in size, how much rice will be cultivated (excluding the wastage)
Answer:
i. 179.775 kg
IIa)the weight=585.225 kg
IIb) percentage=75.6%
3)=30240 kg
Step-by-step explanation:
From the question were given the total area of the land as 1000 sq. meter
Amount of cultivated rice= 765 kg
the percentage of wastage rice =23.5%.
But we can convert the amount of the wastage rice from percentage to kilogram which is
23.5/100=0.235
Then to kilogram 0.235× 765 kg= 179.775 kg
Then amount of wastage rice= 179.775 kg
I)Find the weight of the wastage. ?
The amount of wastage rice is the conversion of it's percentage to kilogram which I did above
Then amount of wastage rice= 179.775 kg
II) Find the weight and percentage of rice cultivated.
Since we know amount of wastage as 179.775 kg, then the amount of cultivated will b difference between the cultivated and wastage=765 - 179. 775 = 585.225 kg
Then it's percentage is the substraction of the percentage of wastage from 100%
= 75.6%
3)If the area has been increased 40 times in size, how much rice will be cultivated (excluding the wastage)
Increase in the land in 40 times= 40×1000= 40,000sm
Then the rice cultivated= 75.6% ×40000
=30240 kg
Renee wants to put a fence around her
square garden that has an area of
6,500 square feet. Determine the
perimeter of the garden to the nearest
tenth of a foot.
Answer:
perimeter = 322.5 ft ( to the nearest tenth of a foot)
Step-by-step explanation:
Length the length of the sides of the square be L
Area of a square = L²
∴ 6,500 = L²
L = √(6,500)
L = 80.6226
Next Let us calculate the perimeter
Perimeter of a square = L + L + L + L = 4L
perimeter = 4 × 80.6226
Perimeter = 322.4904 ft
perimeter = 322.5 ft ( to the nearest tenth of a foot)
N:B rounding to the nearest tenth of a foot is same as rounding to 1 decimal place.
Solve for y.
2y^2 - 10y+44 =(y-7)^2
If there is more than one solution, separate them with commas.
Answer:
y = -5, 1
Step-by-step explanation:
2y² - 10y + 44 = (y - 7)²
expand (y - 7)²
(y - 7)² = y² - 14y + 49
move it to the left
(2y² - 10y + 44) - (y² - 14y + 49) = 0
distribute the (-)
2y² - 10 y + 44 - y² + 14y - 49 = 0
combine like terms
y² - 4y -5
factor with factoring X
y² + 5y - y - 5 = 0
factor by grouping ↓
factor out a y from first half of equation
y(y + 5) - y - 5 = 0
factor out a (-) from second half of equation
y(y +5) - (y + 5) = 0
(y +5)(y - 1) = 0
y = -5, 1
A right angle measures
Answer:
90 degrees
Step-by-step explanation:
I don't really have an explanation but I'm 100% sure that it is
Answer:
90 degrees
Step-by-step explanation:
somebody please help me on this!!
=======================================================
Explanation:
See the attached image below to see one way you could draw the diagram based on the given info. The drawing is not to scale.
The color coded angles hopefully let you see which angles are congruent to one another
Angle EXB = Angle DXE (in red) Angle CXD = Angle DXB (in blue) Angle AXC = Angle CXB (in green)These three pairs of congruences are possible because of the angle bisections that occur.
Since EXB is 20, this means DXE is 20 as well. They combine to 20+20 = 40, which is the measure of angle DXB (angle addition postulate).
Angle DXB is congruent to CXD, so both are 40 and they combine to 40+40 = 80. This is the measure of angle CXB.
Finally, angle CXB = 80 doubles to 160 which is the measure of angle AXB. Or you could say
angle AXB = (angle AXC) + (angle CXB) = 80 + 80 = 160.
true or false: the negative square root is known as the principal square root
Answer:
true
Step-by-step explanation:
Answer:
False, if you get a negitive it would be - square root symbol 9
This is just an example
Step-by-step explanation:
find the area of a cicle
with Radius 7cm using pie
Answer: 153.94cm
Step-by-step explanation:
Answer:
A = 49 cm ²
Step-by-step explanation:
A = πr²
= 22/7 * 7 *7
= 49 cm²
What is the mixed number for (91/5?)
Answer:
18 1/5
Step-by-step explanation:
Plzzz helppp!!
9-4x=17????
Answer:
[tex] \boxed{ \bold{ \boxed{ \sf{x = - 2}}}}[/tex]Step-by-step explanation:
[tex] \sf{9 - 4x = 17}[/tex]
Move 9 to right hand side and change it's sign
⇒[tex] \sf{ - 4x = 17 - 9}[/tex]
Subtract 9 from 17
⇒[tex] \sf{ - 4x = 8}[/tex]
Divide both sides of the equation by -4
⇒[tex] \sf{ \frac{ - 4x}{ - 4} = \frac{8}{ - 4}} [/tex]
Calculate
⇒[tex] \sf{x = - 2}[/tex]
Hope I helped!
Best regards!!
5. If the area of a rectangular field is 21x - 7x and one of its sides is 7x, what is its other side?
Answer:
21x-7/7x
=7x(3x-1)/7= 3x-1
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
To find the area of a rectangle, you must multiply its length with its width.
We know that either the length or it's width is 7x.
To find the length of the other side, we essentially have to figure out what 7x you to be multiplied by to get 14x (21x-7x can be simplified to that by combining like terms)
To reverse multiplication, we can use division.
Let's set up the following expression:
14x/7x
2x/x
2
The length of its other side is 2.
Find the area of the circle if the circumference is 6π inches.
Answer:
Area = Pi x Radius^2
Diameter = Circumference / Pi
= 6Pi / Pi
= 6
Radius = Diameter / 2
= 6 / 2
= 3
Area = Pi x 3^2
= 9Pi square units.
Step-by-step explanation:
Hey there! I'm happy to help!
To find the area, we square the radius and multiply it by π.
We have the circumference. The circumference is the diameter multiplied by π. Since the circumference is 6π, the diameter is 6.
The radius half of the diameter, so it is 3.
Now, we find the area.
We square 3
3²=9
And we multiply by π, so our area is 9π inches squared.
Have a wonderful day! :D
Janes jogging speed is 5 kilometers per hour. What is her speed in meters per second?
Answer:
1.3888888888889 mps
Step-by-step explanation:
1 kph = 0.27777777777778 mps, so just multiply that by 5.
CA-Algebra 1 (S1 20-21)
Creating a Situation for a Graph
Janelle's Trip Home
Based on the graph, which statement could describe
Janelle's trip home from school?
O Janelle waited for the bus, rode the bus, and then
walked home
Distance from Home (mi)
O Janelle walked the opposite direction from home to
the library, rode the bus, and then walked to a
friend's house.
O Janelle walked home at a constant speed.
O Janelle rode the bus to the bus stop, talked with a
friend, and then walked home.
Time (min)
US 17:28
ivity
Answer: She rode the bus to the bus stop talked with a friend and then walked home.
Answer: D
Step-by-step explanation:
Answer:
Janelle rode the bus to the bus stop, talked with a friend, and then walked home.
Help please, 1-8n-8= -7n-6n-12?
Answer:
[tex]\Huge \boxed{n=-1}[/tex]
Step-by-step explanation:
[tex]1-8n-8= -7n-6n-12[/tex]
Combining like terms.
[tex]-8n-7= -13n-12[/tex]
Adding 13n and 7 to both sides.
[tex]-8n+13n=-12+7[/tex]
[tex]-5n=5[/tex]
Dividing both sides by -5.
[tex]n=-1[/tex]