⇒ 3x² - 5x = 0
⇒ (3x - 5) · x = 0
3x - 5 = 0
x = 0
x = 0, 5/3
The heights of Karina, Miya and Clint were 155cm, 158cm, and 161cm respectively. What is the height of Roger if the mean of all of them is 158cm?
Answer:
The height of Roger is 158cm
Step-by-step explanation:
All of them=158cm
They are 4.So,158^4=632cm
Height of 3 persons=155cm+158cm+161cm=474cm
Therefore the height of Roger is 632cm-474cm=158cm
The height of Roger with the mean of all of them is given is 158 cm.
Given that, the heights of Karina, Miya and Clint were 155cm, 158cm, and 161cm respectively.
What is mean?In statistics, the mean refers to the average of a set of values. The mean can be computed in a number of ways, including the simple arithmetic mean (add up the numbers and divide the total by the number of observations).
Let the height of Roger be R.
Mean= 158 cm
We know that, mean =Sum of all the observations/Number of observations
⇒ (155+158+161+R)/4 =158
⇒ 474+R=632
⇒ R=632-474
⇒ R=158 cm
Hence, the height of Roger with the mean of all of them is given is 158 cm.
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There are 5,000 books in the town's library. Of these, 4,600 are fiction. what is the percent?
Answer:
92%
Step-by-step explanation:
The part that is fiction over the total is the fraction that is fiction
4600/5000 = 23/25
Change this to a percent
23/25 * 4/4
92/100
92%
In January, 1950, the minimum wage was $.75. What should the minimum
wage be in July, 2009?
Answer:
On July 24, 2009, the federal minimum wage will increase to $7.25 per hour. This is the final step of a three-step increase passed in 2007 when the minimum wage was only $5.15. In this last step, about 4.5 million workers will receive a raise, providing an additional $1.6 billion annually in increased wages. However, when adjusted for inflation, the new federal minimum is still less than the minimum wage through most of the period from 1961 to 1981.
Step-by-step explanation:
On this math problem please help me
Answer:
98.25 M/s
Step-by-step explanation:
Item 1
Joanna has of a gallon of milk left that has an expiration date in 6 days. If she splits the milk
equally among her next 6 bowls of cereal, how much milk will she use in each bowl?
Answer:
Joanna will use 1 gallon of milk in each bowl.
Step-by-step explanation:
Divide 6 into 6 bowls to get 1
The band needs to make at least $900.
Which inequality represents this situation?
Answer:
150y >=900
Step-by-step explanation:
next is six or more
Calculate the sum of each expression. Arrange the expressions in the order of their value from largest to smallest
Big bag don't mean everything wavy
I got 99 problems like Jay Z
Caught a felony judge tried to slave me
Lost my grandmother R.I.P Mavy
I got money and move shady
Which is the graph of y=3/4x-3
Graph A
Graph B
Graph C.
Answer:
Graph A
Step-by-step explanation:
I had this question in my class and got it right with answer A :')
Ig1000+log342 - 1 -123
Answer:
log(342) - 121
Step-by-step explanation:
-121 + log(342) is a transcendental number
-115.165189262937394847783249972808918485...
For w(x)=4x-4 find w(-7) show your work
Answer:
-32
Step-by-step explanation:
To find w(-7) we have to substitute x with -7
w(x)=4x-4
w(x = -7) = 4(-7) -4
w(-7) = -28-4
w(-7) = -32
Two rectangles have the same width. The length of one is 1 foot longer than the width. The length of the other is 2 feet longer than the width. The larger rectangle has 5 more square feet than the smaller. What is the width of the rectangles?
Answer:
Both Rectangles have a width of 4
Step-by-step explanation:
Question 20
Figure A is doubled in size then reflected across the x-axis creating Figure B.
How will the coordinates of Figure B differ from Figure A as a result of this series of transformations?
А
two times the x-value and two times the opposite y-value
B the opposite x-value and two times the y-value
С
two times the x-value and two times y-value
D
two times the opposite x-value and the opposite y-value
Answer:
Two-times the x-value and two-times the opposite y-value.
can someone help me please ?
Answer:
18 x^7 y^5
Step-by-step explanation:
Thirty-seven is twice a number increased by five.
If there are four black kittens and two orange kittens how does the number of orange kittens compared to the total number of kittens in the litter write a comparison beginning with for every?
Answer:
For every two black kittens, there is one orange kitten.
Step-by-step explanation:
Simplify the ratio and put it in word form.
Answer:
For every three kittens there is one orange kitten
Step-by-step explanation:
The total number of kittens is equal to four black kittens + two orange kittens, which makes for six kittens.
So for every six kittens there are two orange kittens.
We can simplify this down further by dividing by the greatest common factor, 2.
So,
For every three kittens there is one orange kitten.
which is perpendicular to the line x-2y=2
Answer:
y=-2x+5
Step-by-step explanation:
x-2y=2
2y=x-2
y=(x-2)/2
so the slope is 1/2
for lines to be perpendicular m1m2=-1 so the line must have a slope satisfying the condition
(1/2)m=-1
m=-2
the only line with a slope of -2
If is wrong i'm sorry
Solve:
x + y = 7
3x - 2y = 11
By using Substituting method.
[tex]\large\underline{\sf{Solution-}}[/tex]
[tex]\sf \longmapsto x + y = 7 \: \: - - - (i)[/tex]
[tex]\sf \longmapsto 3x - 2y = 11 \: \: - - - (ii)[/tex]
By first equation,
[tex]\sf \longmapsto x + y = 7[/tex]
[tex]\sf \longmapsto x = 7 - y[/tex]
Now, we can find the original value of y.
[tex]\sf \longmapsto 3x - 2y = 11[/tex]
[tex]\sf \longmapsto 3(7 - y) - 2y = 11[/tex]
[tex]\sf \longmapsto 21 - 3y - 2y = 11[/tex]
[tex]\sf \longmapsto 21 - 5y = 11[/tex]
[tex]\sf \longmapsto - 5y = 11 - 21[/tex]
[tex]\sf \longmapsto - 5y = - 10[/tex]
[tex]\sf \longmapsto y = \dfrac{ - 10}{ - 5} [/tex]
[tex]\sf \longmapsto y = 2[/tex]
Now, we can find the original value of x.
[tex]\sf \longmapsto x + y = 7[/tex]
[tex]\sf \longmapsto x + 2 = 7[/tex]
[tex]\sf \longmapsto x = 7 - 2[/tex]
[tex]\sf \longmapsto x = 5[/tex]
Therefore, the values of x and y are 5 and 2 respectively.
Danica and Irma are flying kites. Danica's kite is 7 times as high as Irma's kite. Danica's kite is 273 feet high. How high is Irma's kite?
A .280 feet
B. 39 feet
C. 1,911 feet
D. 40 feet
Answer:
39
Step-by-step explanation:
273/7=39
Answer:
What is 39 feet
273 Divided By 7= 39 Feet
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The total area of Russian is about 20,000,000
Answer: 19,990,000 times
Step-by-step explanation: Land area of Russia = 20000000
Land area of Puerto Rico = 10000
20000000 - 10000 = 19,990,000
What is the value of this
Answer: -16 Happy to Help :) Brainliest Please
Step-by-step explanation:
Answer:
-16
Step-by-step explanation:
Simplify radicals please
Which answer choice shows that the commutative property does NOT hold for matrix multiplication?
Answer:
D.
Step-by-step explanation:
AB is NOT equal to BA in matrix multiplication.
It is not commutative.
What is the expression in factored form?
4x2 +11x+6
O (2x+3)(2x+2)
O (4x+1)(x+6)
O (2x+1)(2x+6)
(4x+3)(x+2)
Answer: (4x + 3) (x + 2)
Step-by-step explanation:
We can rewrite 4x² + 11x + 6 as 4x² + 8x + 3x + 6
Since 4x² + 11x + 6 = 4x² + 8x + 3x + 6
= (4x + 3) (x + 2)
The factors of the given expression [tex]4x^2 +11x+6[/tex] are (x+8) and (x+3).
A collection of constants, variables connected using one or more arithmetic operator is called an expression.
An algebraic expression or a number that divides another number without leaving any remainder and the quotient is a whole number is called a factor.
The factors of the following expression can be calculated as:
[tex]4x^2 +11x+6[/tex] = [tex]x^2+ 8x+ 3x+24[/tex]
= x(x+8) +3(x+8)
= (x+8) (x+3)
Thus, the factors of the [tex]4x^2 +11x+6[/tex] are (x+8) (x+3)
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A hedgehog wishes to cross a road without being run over.
He observes the angle of elevation of a lamp post on the other
side of the road to be 27° from the edge of the road and 15°
from a point 10m back from the road. How wide is the road?
Ifhe can run at 1 m/s-bew long will he take to cross?
If cars are travelling at 20 m/s, how far apart must they be if he
is to survive?
Answer:
15m long
Step-by-step explanation:
just do a c e g and i
Answer:
A, 1.57
C.0.971
E.88.3
G.3.28
I.72.9
Answer:
a) 0.47÷0.3 =1.567
c)0.068÷0.07 =0.971
e)0.53÷0.006=88.333
g)3.61÷1.1=3.282
I)6.56÷0.09=73.889
8.19 divided by 4.2 SHOW UR WORK DONT SAY DO CAUCULATIONS
Answer:
1.95
Step-by-step explanation:
We can use basic arithmetic to find the answer of your question through long division.
8.19/4.2 is basically 819/420, just multiplying both sides by 100 to get rid of the decimal point.
Using long division, we can subtract 420 from 819 to add 1 to the quotient and work with 399. Currently, our quotient is 1 with a remainder of 399
Since we can not get a positive number from 420-399, we must add a 0 to 3990 along with adding a decimal point to behind the 1. 420 can fit into 3990 9 times, so we add 9 after the decimal's point, and subtract 420*9=3780 from 3990, which is 210. Right now, our quotient is 1.9 with a remainder of 210.
Because we can not subtract 420 from 210 to get a positive number, we must add another 0 to 210 to get 2100. 420 can fit into 2100 5 times, so we remove 2100 from 2100, leaving no remainder. We also add 5 to the quotient, behind the 9. Now, our quotient is 1.95, the answer.
Answer:
1.95
Step-by-step explanation:
long division
what is 12/24 - 10/23
A little help? A set of numbers is given below. √72, 9.25, √83, 2, 8.7 Which list correctly orders the numbers from least to greatest?
Answer:
9.25, 83^1/2, 8.7, 72^1/2, 2 From greatest to least
2, 72^1/2, 8.7, 83^1/2, 9.25 from least to greatest
Step-by-step explanation:
hhhhhhhhhhhheeeeeeeeeelllllpppppppppp me
Answer:
m<b=107º
Step-by-step explanation:
180-41-32=107
D and B are congruent
The height of a cylinder is 4 millimeters.The circumference of its base is 10 pi mm
[tex]\\ \sf\longmapsto C=10\pi mm[/tex]
[tex]\\ \sf\longmapsto 2\pi r=10\pi mm[/tex]
[tex]\\ \sf\longmapsto 2r=10[/tex]
[tex]\\ \sf\longmapsto r=5mm[/tex]
h=4mm[tex]\\ \sf\longmapsto Volume=V=\pi r^2h[/tex]
[tex]\\ \sf\longmapsto V=\pi (5)^2(4)[/tex]
[tex]\\ \sf\longmapsto V=\pi 25(4)[/tex]
[tex]\\ \sf\longmapsto V=100\pi mm^3[/tex]
volume is 100pi mm³.
What is volume?In mathematics, volume is the space taken by an object.
Here, given that,
The height of a cylinder is 4 millimeters.=h
The circumference of its base is 10 pi mm=2r*pi
So, we get,
r=5
Volume =pi*r²*h
=100pi mm³
Hence volume is 100pi mm³.
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