Answer:
There are 18 teachers in the auditorium.
Step-by-step explanation:
1/9 of 162
1/9 * 162 = 18.
Which answer represents the series in sigma notation? −7+(−2)+3+8+13 ∑j=15(5j−12) ∑j=15(−8j+1) ∑j=15−5(15)j−1 ∑j=155j−1
Answer:
∑j=15(5j−12)
Step-by-step explanation:
For j = 1 up to j = 5
j = 1
(5j - 12) = (5(1) - 12) = 5 - 12 = - 7
j = 2
(5j - 12) = (5(2) - 12) = 10 - 12 = - 2
j = 3
(5j - 12) = (5(3) - 12) = 15 - 12 = 3
j = 4
(5j - 12) = (5(4) - 12) = 20 - 12 = 8
j = 5
(5j - 12) = (5(5) - 12) = 25 - 12 = 13
(-7 + (-2) + 3 + 8 + 13)
Answer:
(5j-12)
Step-by-step explanation:
Other person was right, took the test using the answer they gave.
what is the equation for the line?
Answer:
y=6/5x+8/5
Step-by-step explanation:
find the slope (6/5) you can find this by making a slope triangle between the 2 points.
now, plug in a point to y=6/5x+b
-2=6/5(-3)+b
-2=-18/5+b
-10/5=-18/5+b
b=8/5 (y-int)
so y=6/5x+8/5
Robert made 7 loaves of bread. Each loaf of bread uses of a cup of flour. How many cups of flour did Robert use to make 7 loaves of bread?
Answer:
7 cups of flower.
Step-by-step explanation:
He made 7 loaves and each loaf calls for 1 cup of flour. 7 times 1=7...I feel like this is so easy.
These box plots show the number of electoral votes won by Democratic and
Republican presidential candidates for the elections from 1984 through 2012.
Republican
159
170.5 238 5
356
525
Democratic
13
181
299
3675
379
0
50
100
150
400
450
500
550
200 250 300 350
Electoral votes
Which statement best compares the spreads of the data sets?
Answer:
The interquartile range (IQR) for Democratic electoral votes, 186.5, is very nearly equal to the IQR for Republican votes, 185.5.
Step-by-step explanation:
The correct statement is; The interquartile range (IQR) for Democratic electoral votes, 186.5, is very nearly equal to the IQR for Republican votes, 185.5.
How to find the interquartile range?IQR(interquartile range) is the difference between third and first quartile.
[tex]IQR = Q_3 -Q_1[/tex]
The lower quartile, also called first quartile has approx 25% in its left partition, and on its right lies approx 75% of the data.
The third quartile (also called upper quartile) has approx 75% in its left partition, and on its right lies approx 25% of the data.
From the given plots, we have:
Republican
[tex]IQR = Q_3 -Q_1[/tex]
IQR = 356 - 170.5
IQR = 185.5
Democratic
[tex]IQR = Q_3 -Q_1[/tex]
IQR = 367.5 - 181
IQR = 186.5
Hence, The interquartile range (IQR) for Democratic electoral votes, 186.5, is very nearly equal to the IQR for Republican votes, 185.5.
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pay:11.71 per hour
hours:11 hours per week
Answer:
$128.81 per week
$515.24 per month
$6182.88 per year
Step-by-step explanation:
[tex]\frac{11.71}{y} :\frac{1}{11}[/tex]
y = 128.81
[tex]\frac{128.81}{y} :\frac{1}{4}[/tex]
y = 515.24
[tex]\frac{515.24}{y}: \frac{1}{12}[/tex]
y = 6182.88
need cos A and tan A asap please
Answer:
[tex]\sin A=\frac{12}{37},\\\\\cos A=\frac{35}{37},\\\\\tan A=\frac{12}{35}[/tex]
Step-by-step explanation:
In a right triangle only, the sine of an angle is equal to the angle's opposite side divided by the hypotenuse of the triangle. (o/h)
The cosine of the angle is equal to the angle's adjacent side divided by the hypotenuse of the triangle. (a/h)
The tangent of the angle is equal to angle's opposite side divided by the adjacent side. (o/a)
In this case, angle A's opposite side is 12, its adjacent side is 35, and the hypotenuse is 37 (o=12, a=35, h=37).
Thus we have:
[tex]\sin A=\frac{12}{37},\\\\\cos A=\frac{35}{37},\\\\\tan A=\frac{12}{35}[/tex]
Answer:
Step-by-step explanation:
sin A=opposite/hypotenuse=12/37
cos A=adjacent/hypotenuse=35/37
tan A=opposite/adjacent=12/35
2. What is the center of dilation and the scale factor of the dilation of ABCD to EFGH?
Answer:
The center of dilation of ABCD to EFGH is (0, 0), and the scale factor is 4/3
. Solve for x. a) 10 - 1/4x - 7 b) 3 (x + 8 ) = 21
a) 10 - 1/4x = 7
1/4x = 7 + 10
= 17
x = 17/ (1/4)
b) 3 (x + 8 ) = 21
x + 8 = 21/3
= 7
x = 7 - 8
= -1
lets find the answer
Answer:
-6,3....................
Answer:
(-4,3)
Step-by-step explanation:
which statement is true ? BRAINLIEST! BRAINLIEST! BRAINLIEST! BRAINLIEST! BRAINLIEST!
Answer:
[tex]\sqrt{11}[/tex] is between 3 & 4
Step-by-step explanation:
PLEASE SOMEONE HELP AND NO LINKS OR UR GONNA GET REPORTED
Determine the value of x.
A.) 2\sqrt{6}
B.) 6\sqrt{2}
C.) 6\sqrt{3}
D.) 12
Answer: D) 12
Step-by-step explanation:
As you can see side A is 6 and side B is also 6 so side C must be 12
Divide.
(2x2 + 13x + 9) = (x + 7)
I think the right question, should be like this,
= 2x² + 13x + 9/x + 7
So, the quotient is 2x - 1 and the remainder is 16, you can find answer there in attachment.
---------------------------------------
P.S- Sorry for messing writing.
4x-2(x-5)=-8+4x+12 answer plz help #lovedafans
Answer:
x = 3
Step-by-step explanation:
Answer:
The answer is x = 3
The six grade class at Kennedy middle school participated in a fundraiser each day they raise twice as much as the day before on the first day they race $24 how much money did they raise over all five days of the fundraiser
Answer: E. $744
Step-by-step explanation:
Think of all 5 days and the previous day doubled
So
24
48
96
192
384
All together is $744.
Which of the following is a factor of x2 + 10x -24
Answer:
b) (x + 12)
Step-by-step explanation:
x² + 10x - 24
factors of 24 are: 1x24, 2x12, 3x8, 4x6
the pair I would select would be 2 and 12 as they could result in 10
(x + 12)(x - 2) = 0
HELP ME ASAP!!! On a scale used on a map, 3/4 inch represents 8 feet. On the map, what is the length of a room with an actual length of 24 feet?
A
4 in.
B[tex]1 \frac{3}{4} [/tex]
C
[tex]4 \ \frac{1}{2} [/tex]
D
[tex]2 \ \frac{1}{4} [/tex]
Answer:
D. 2 1/4
Step-by-step explanation:
3/4 inch = 8 feet
24 divided by 8 = 3
(meaning you would multiply eight three times in order to get to 24)
So....
3/4 x 3 = 2 1/4
Answer: 2 1/4
Hope this helps :)
Answer: D - 2 1/4”
Step-by-step explanation:
8 feet goes into 24 feet 3 times
Eg. 24/8 = 3
If 3/4” = 8 feet, then 3 x 3/4” = 24 feet
3 x 3/4” = 2 1/4”
One number is 2 more than another number. If the product of the two numbers is 35, what are the numbers? Please show the work
Answer: 5 and 7.
Step-by-step explanation: I’m sorry I don’t know what kind of equation to do but I’ll show how I got the answer if that’s what you mean.
First I made a list of numbers that when multiplied equal 35
Then I went through the list and took out all the options that were not one number being 2 more than the other.
The only option left is 5 x 7 (5*7)
what kind of equation do you want? Like 5*7 = 35 and 5 + 2 = 7?
The numbers are 5 and 7.
What is equation?A mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value.
let the first number be 'x'
another number = x+2
According to question,
x(x+2)= 35
x²+2x-35=0
x²+7x-5x-35=0
x(x+7)-5(x+7)=0
(x-5)(x+7)=0
x= +5, -7
Hence, the numbers are 5 (x) and 7 (x+2).
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Basic Ratio Right Triangle Trigonometry Find the missing side X and Y.
please help me whit this (if you answer pls show the work)
Answer:
24 ft
Step-by-step explanation:
Use proportions! The old tent has sides of 10ft, and a base of 15ft. The new tent has sides of 16ft and a base of ____ ft.
So, 10/15 = 16/___. Cross multiple and you get 24ft!
There are 1,024 players in a tennis tournament. In each round, half the players are eliminated. Which function can be used to find the number of players remaining in the tournament at the end of x rounds?
Answer:
1,024 ÷ by how many number of rounds= x
Answer:
1,024(0.50)^x That is the answer......................................
Is 511Q bad on a test :((
Answer:
big brain
Step-by-step explanation:
Expand to write an equivalent expression. −5(7−2)
Determine side x. Round to the nearest unit. 20 9 12 5
Answer:
12
Step-by-step explanation:
First, you will have to use trigonometry. Since the side of the triangleis the opposite of the angle 53 and the hypotenuse, you will use sin.
Sin 53 degrees = opposite side / hypotenuse side.
The opposite side is x and the hypotenuse side equals 15.
sin53= x/15
15 ( sin 53 ) =x
x= 11.97953
Round
x=12
Help me ASAP please!!
Answer:
If you are asking for the X then the answer would be 7.
Carmella likes to hike for more than 4 hours but less than 6 hours. She hikes at a speed of 2 miles per hour.
If m is the number of miles Carmella likes to hike, which inequality is true?
A. 0.33
B 2.0
C 4.0
D 6.0
E 8.0
Answer:
Guys the answer is E. I just took the test.
Step-by-step explanation:
Short answer: Look at the inequalities and plug in either 10 or 8 for m and then you're all set :)
Long Answer:So what you should do first is calculate how long she hikes for and how many mph. It says that she likes the hike for more than 4 hours but less than six. She also hikes at least 2 mph. So if you were ever in first grade you would know that she hikes for at least 5 hours. Now 5 x 2 is 10. Now you can either plug 8.0 into the inequalities or 10 but either way its going to be more than whatever number is first in the inequality but less than 12.
Answer:
E.
Step-by-step explanation:
Suppose fx) = x? What is the graph of g(x)= x(x)?
Answer:
1/2x^2
Step-by-step explanation:
f(x)=x^2 so g(x)=1/2x^2
if g(x)=x(x) then the answer is 1/2x^2
use desmos to help u select the correct graph
Find the area
Please help!!!
Answer:
area of the semicircle=
diameter²=9²+21.6²
=81+466.56
diameter² =547.56
diameter=√547.56
=23.4
radius of the semicircle=diameter/2=23.4/2
=11.7
area of the semicircle=1/2πr²
=1/2×3.14×11.7²
=214.9173m²
area of the triangle=1/2×9×21.6
=97.2m²
area of the shaded region=214.9173m²-97.2m²
=117.7173m²
round it as possible
Events without replacement are independent events.
false
true
Answer:
True
Step-by-step explanation:
When sampling is done with replacement, then events are considered to be independent, meaning the result of the first pick will not change the probabilities for the second pick. Without replacement: When sampling is done without replacement, each member of a population may be chosen only once.
plssssss helpppppppppppppppppppp
Answer:
c
Step-by-step explanation:
expand and simplify
3(x+1)+2(x+2)
Answer:
5x+7
Step-by-step explanation:
3x+3+2x+4
3x+2x+3+4
5x+7
plz mark as brainliest