A class is made up of 8 boys and 4 girls. Half of the girls wear glasses. A student is selected at random from the class. What is the probability that the student is a girl with glasses?
Answer:
1/6
Step-by-step explanation:
The total amount of people 8+4=12
there are 4/2=2 girls with glasses
the probability to chhose a girl with glasses is 2/12=1/6
please help, will mark brainliest !
Answer:
the last one
Step-by-step explanation:
Triangle, parallelogram lies between same parallel lines.
True or False
Answer:
True
Step-by-step explanation:
Answer: True
Step-by-step explanation:
given AB= DE <A=<D and AC= DF
Answer:
Step-by-step explanation:
f(x) = -4x2 + 19
Find f(-7)
Step-by-step explanation:
Solution,
f(x) = -4x2 + 19
f(x)=-8+19
f(x)=27
As it is a constant function, therefore
f(-7)=27
The quotient of 31 and the product of a number and - 8?
Answer:
[tex]\frac{31}{-8n}[/tex]
Step-by-step explanation:
Overall, the expression is a quotient, and you're dividing 31 by whatever the product is of -8 and an unknown number (a variable). The product of -8 and a number means you multiply them together
if a bag is sold in Rs.2151.52 including 13% VAT after allowing 20% discount on it, find its marked price
Answer:
2380
Step-by-step explanation:
[tex]\frac{2151.52}{1+0.13} }[/tex] x [tex]\frac{100}{80}[/tex]
Answer:
I don't know plz help me it's my exam I need this answer
In the standard (x,y) coordinate plane, what is the distance, in coordinate units, between (8, 6) and (−2, −3) ?
Answer:
√181 units
Step-by-step explanation:
P(x1,y1)=(8,6)
P(x2,y2)=(-2,-3)
steps are in the picture above.
Find (h•g)(x)
h(x)= 3x-3 and g(x)=x^2+3
Answers:
A: 3x^3 - 3x^2 + 9x
B: 3x^3 - 3x^2 + 9x - 9
C: 3x^3 + 3x^2 + 9x - 9
D: 3x^3 - 9
Answer:
the answer is b!!!!!!!!!!!!
(3x-3)(x²+3)
=x²(3x-3)+3(3x-3)
=3x³-3x²+9x-9
What’s the answer????
hey <3
negative exponentials can be written as a power of a fraction
for example, 4^-2 can be written as 1/(4^2)
thus, your answer would be 1/(5^2)
hope this helps :)
Answer:
[tex]\frac{1}{25}[/tex]
Step-by-step explanation:
Using the rule of exponents
[tex]a^{-m}[/tex] = [tex]\frac{1}{a^{m} }[/tex] , then
[tex]5^{-2}[/tex] = [tex]\frac{1}{5^{2} }[/tex] = [tex]\frac{1}{25}[/tex]
there are 78.1 grams of carbon in a sample of 92.7 grams of octane. what is the percent of carbon within the sample of octane?
The percent of carbon within the sample of octane is 84.25%
A percentage is a fraction of a total amount divided into hundred parts
The percent of carbon within the sample of octane = (grams of carbon / grams of octane) x 100
(78.1 g / 92.7 g) x 100 = 84.25%
To learn more about percentages, please check : https://brainly.com/question/19179977?referrer=searchResults
The percent of carbon within the sample of octane in the exercise is:
84.25%Calculation of percentages using the rule of three.
To make a calculation of the percentage of a sample, a simple rule of three can be used, where it is identified:
92.7 g → 100% 78.1 g → x
The octane sample is used as 100% since it is the total sample, while carbon is only a part of it, now we proceed to calculate:
[tex]x=\frac{78.1*100}{92.7}[/tex][tex]x=\frac{7810}{92.7}[/tex]x = 84.25026969x ≅ 84.25%In this way, it can be identified that the percentage of carbon in the octane sample is approximately 84.25%.
If you want to see another exercise about percentages, you can visit the next link: https://brainly.com/question/6269728?referrer=searchResults
Find type of angle and solve for x.Please help.
Step-by-step explanation:
72° and a° is the angle of a straight line so
a+72°=180
a=180-72
a=108°
By using alternate exterior angle definition:
7x+24=180
7x=108-24
7x=84
x=84/7
x=12
a rectangular hall room is 12.25 metres in length and 7.75 metre in breadth. find the area of the rectangular hall room.
Answer:
Area= 94.9375
Step-by-step explanation:
1.) -12/6 is a natural, whole, integer, rational or irrational
Answer:
Rational
Step-by-step explanation:
F(-3,-2), I(-4, 3), A(-2,3), M(1, -1)
to
I’(-4,-3), A’ (-2, -3), M’(1,1), F(-3,2)
PLS TELL ME HOW THIS TRICK WORKED!! I HAVE TO SUBMIT KT SOON!
Answer:
x=2
Step-by-step explanation:
let the unknown number be x
now we are to find x regarding the question as an equation, let's form the equation to solve for x
the interpretation of the question is:
(x² + x)/3 = x
by collecting the like terms:
(x²+ x) = 3x
x² + x = 3x
x² = 3x - x
x² = 2x
x = 2
Answer:
The number you thought to start with, X
Step-by-step explanation:
Magician's secret:
Step 1: Let the original number you thought of be X
Step 2: 2 × x = 2X
Step 3: 2X + X = 3X
Step 4: 3X/3
》X
At what input value will the function
f(x) = Vx – 5 + 2 begin to have real
outputs?
x = [?]
Answer:
x=5 since if anything smaller than 0 it would be an imaginary number and would not be a real output
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
the function of f(x) = √(x – 5) + 2 will have real outputs , since √(x-5) ≥ 0
=> x - 5 ≥ 0
=> x ≥ 5
so, the input value begin from 5
Giving out bonus points if you answer this!
Explain why segments AB and AC have the same length.
Answer:
AB and AC are radii of Circle A.
Step-by-step explanation:
Note that both B and C are on the edge of Circle A. Hence, AB and AC are radii of the same circle.
And by definition, radii of the same circle have equivalent lengths.
How do I solve this? What is the Answer?
Answer:
LN = 37Step-by-step explanation:
Let LM= 22 and MN= 15Solution:22 + 15 = 37LN = 37[tex]\tt{ \green{P} \orange{s} \red{y} \blue{x} \pink{c} \purple{h} \green{i} e}[/tex]
kevin buys cornflakes for £1.40 and chocolate for £1.50 he makes cornflakes cakes he sells 10 for £1 each how much profit does he get
34x = 850
just a simple equation. I posted it for no reason in particular.
Answer:
x=25
Step-by-step explanation:
because i divided
I really dont know what to do for this, my teacher didnt really show us how to do it. all she said was "this is your homework assignment and it due Monday"
Answer:
y=x-3
Step-by-step explanation:
x=3 x=-1 x=0 x=2 x= -5 x= -2 x=1
y=3-3 y= -1-3 y=0-3 y=2-3 y= -5-3 y= -2-3 y=1-3
y =0 y= -4 y= -3 y= -1 y= -8 y= -5 y=-2
Hope you got it.If you have any doubts regarding this ask me without any hesitation I will solve it.
If two lines intersect, they intersect at two different points.
is this statement true or false
Answer: False
If two lines intersect, then they intersect at one point only, so it makes no sense to mention a second point. This is assuming that we're not talking about two lines intersecting infinitely many times (i.e. one line overlapping another perfectly).
plz halp meh 1/2 - 1/10
What is the slope of the line containing (–1, 8) and (3, –12)? A. 5 B. – C. –5 D.
Answer:
-5
Step-by-step explanation:
We can use the slope formula to find the slope
m = ( y2-y1)/(x2-x1)
=(-12 -8)/(3 - -1)
=(-12-8)/(3+1)
= -20/4
= -5
How old is Aunt Sally if Jerome is 14 years old? Explain your thinking, how did you come up with your expression, how did you solve?
Answer:
Step-by-step explanation:
I don't get this question
Which of the following equations has the same solution as: |3x + 2| = 4x + 5
Answer:
Step-by-step explanation:
Which expression is equivalent to d - 3d – 2d?
Hi there!
»»————- ★ ————-««
I believe your answer is:
[tex]-4d[/tex]
»»————- ★ ————-««
Here’s why:
⸻⸻⸻⸻
[tex]\boxed{\text{Simplifying the Expression Given...}}\\\\d-3d-2d\\-------------\\\rightarrow 1d-3d-2d\\\\\rightarrow -2d - 2d\\\\\rightarrow \boxed{-4d}[/tex]
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
use intercepts to to graph the line described by the equation -2x = 4 + 4y
A jar contains 30 red marbles, 50 green marbles, and 20 blue marbles. What is the probability of getting a
marble that is not red when drawing one at random?
Answer:
P(not red marble)=8/11
Step-by-step explanation:
sample space is 110
subtract the red (30)
110-30=80
80/110=8/11
gg ez