Answer:
r= 1.69
Step-by-step explanation:
In a class of 25 students, 20 have a brother and 8 have a sister. There are 3 students
who do not have any siblings. What is the probability that a student who has a sister
also has a brother?
Answer: 6/8 or 3/4 or 0.75
Step-by-step explanation:
Please help me with these two questions
Aubree recorded the grade-level and instrument of everyone in the middle school School of Rock below.
Seventh Grade Students
Instrument # of Students
Guitar 9
Bass 12
Drums 4
Keyboard 7
Eighth Grade Students
Instrument # of Students
Guitar 12
Bass 14
Drums 5
Keyboard 8
Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than drums as a percent to the nearest whole number.
Answer:
88%
Step-by-step explanation:
probability of 7th grader playing other instruments apart from drum = total number of students not playing drum / population of the 7th grade class
total number of students not playing drum = 9 + 12 + 7 = 28
population of the 7th grade class = 28 + 4 = 32
28/32 = 0.875
to express in percentage multiply by 1000 = 87.5%
To round off to the nearest whole number, look at the first number after the decimal, if it is less than 5, add zero to the units term, If it is equal or greater than 5, add 1 to the units term.
88%
Please help me with this question
Answer:
wheres the formula
help help this was due last week
GIVING BRAINLIEST!!!!!!
Which shape has two pairs of parallel sides?
Answer:
the rectangle
Step-by-step explanation:
Help me with this easy math question, please. I don't understand it, but it's said to be simple. Please and thank you in advance.
Answer:
$850.50
Step-by-step explanation:
Once you find the square footage of the triangle, that being 486 sq ft, you multiply by 1.75, the cost of the deck per sq ft, you get $850.50
If the measure of arc ABC = 210°, what is the measure of AOC?
210
150°
100°
125°
The measure of m(arc AOC) equals to 150°.
What is the area of the sector?The area of the sector is -
A = θ/360 x πr²
Given is that the measure of arc ABC = 210°.
We can write measure of arc AOC as -
m(arc AOC) + m(arc ABC) = 360°
m(arc AOC) = 360 - 210
m(arc AOC) = 150°
Therefore, the measure of m(arc AOC) equals to 150°.
To solve more questions on arc measurement, visit the link -
brainly.com/question/30098550
#SPJ1
The school is located where Wilson Street and Green Street intersect. Which ordered
pair represents the location of the school?
(5,3) is the answer for the current question
Help!
ANYTHING IS APPRECIATED
Answer:
A:90
B:105
C:60
D:165
Step-by-step explanation:
Brainliest?
i NEED HELP PLS HELP ME
Find X, Y, Z,
(I believe X is 12?)
Answer:
x = 12 y = 24 z = 12[tex]\sqrt{3}[/tex]
Step-by-step explanation:
you are correct. x = 12
The dotted line has a length of 12 also
The dotted line is the shorter leg of the 30-60-90 triangle.
So, z = 12[tex]\sqrt{3}[/tex] and y = 24
Convert the following fractions into mixed numbers: 43/4
Answer:
10 3/4
Step-by-step explanation:
Use a calculator
Hope this helps! :)
Answer:
Step-by-step explanation:
mixed fraction 43 - (4 x 10) = 3
Sydney bought 3 cookies for 1.80 at this price how much would a dozen cookies cost
Answer:
$7.20
Step-by-step explanation:
A dozen = 12, Sydney bought 3 cookies for $1.80, 12 divided by 3 = 4, so 4 times $1.80 = $7.20
hope this helps :D
Answer:
7.20
Step-by-step explanation:
9.
Identify the mapping diagram that represents the relation and determine whether the relation is a function.
{(–3, –6), (–1, –6), (5, –6), (8, –6)}
Which of the following is true?
A. choice d.
B. choice a.
C. choice b.
D. choice c.
Answer: B. The Relation Is A Function
C. choice b.
Step-by-step explanation: I got these steps from 2 different sites
For all values of x, y = - 6
Your function:
y = - 6
...............................................................................................................................................
REDUCE MATRIX TO ROW ECHELON FORM: \begin{pmatrix}a&\cdots &b\\ 0&\ddots &\vdots \\ 0&0&c\end{pmatrix}:\quad \begin{pmatrix}8&-6\end{pmatrix}
STEPS: (8, -6)
MATRIX ALREADY IN ROW ECHELON FORM:
(8, -6)
Which number is located between 19 and 20 on a number line?
A. √(298)
B. √(340)
C.√ (391)
D. √(402)
Answer: C
Step-by-step explanation: 19² =361 and 20² = 400
whats the answer to this?
Answer:
6cm
Step-by-step explanation:
I will apply equivalent fractions here or enlargement is also allowed
let find the factor,k
3/0.25=k
12=k
to get x
x/0.5=12
x=12*0.5
x=6cm
Hi! I need some help on my hw! Feel free to attach a picture explaining it if that’s easier tysm!
first one is easy money
right angle = 90, and we also have 42 so:
90+42=132
180-132=48
2nd one is weird, why is there a 150 down there? triangles add up to 180 nso right angle already gets 90 degrees.--oh wait I just got it, so that is the angle of the outer. we know a line is 180 degrees, so 180-150=30 so we found that degree
So now 90+30=120, 180-120=60
A.45
B.30
C.90
D.180
E.40
F.55
G.130
H.50
What is the square root of 6 - the square root of 20.
Please answer fast!
I need a step-by step explination on how to solve this problem. I really need some help!
Answer:$120
Step-by-step explanation:
85% of x= $107.27
.85x=107.27
Divide both sides by .85
X=126.20
Subtract the binder$6.20
A drawer contains 30 pens of various colors: 4 are black, 10 are blue, 3 are red, 6 are green, 6 are blue and red, and 1 is white. A white pen is removed from the drawer.
Answer:
the probability in the case when the white pen would be removed from the drawer is 1 ÷ 30
Step-by-step explanation:
The computation of the probability in the case when the white pen would be removed from the drawer is given below
= Favorable outcome ÷ total outcome
= 1 ÷ 30
Hence, the probability in the case when the white pen would be removed from the drawer is 1 ÷ 30
We simply applied the above formula
is it true or false??
Answer:true
Step-by-step explanation:
It would be -6 which is less that -9
Consider right triangle AJKL below.
K
L
60
5.2
3
J
Which expressions represent the length of side KL?
12 people are waiting at a subway stop to get on the train. However, the train only has space for 9 people to board. How many different combinations of
people can get on the train?
O 220
1.320
13,305,600
O 79.833.600
Answer:
Step-by-step explanation:
Ayden invested $560 in an account in the year 1990, and the value has been growing exponentially at a constant rate. The value of the account reached $700 in the year 1994. Determine the value of the account, to the nearest dollar, in the year 2002.
I'm not sure but I think is 1,00
y-intercept y=1/4x-2
Answer:
(0,-2)
Step-by-step explanation:
y intercept is when x=0
y=1/4(0)-2
y=-2
(0,-2)
PLEASE HELP ME. ITS DUE AT THE END OF CLASS
Answer:
if im looking at it correctly it should be the third one / c
Step-by-step explanation:
This is the final one please help me
Answer:
If all the sides of the triangle are different, its scalene or else it could ne obtuse not sureee
solve for x ?
3(x - 2) = 18
Answer:
X=8
Step-by-step explanation:
3x-6=18
3x=18+6
3x=24
X=24÷3
X=8
Answer:
x=2
Step-by-step explanation:
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