Answer: (b)
Step-by-step explanation:
Given
Craig's drawer contains 6 white, 5 blue and 7 black socks
He first select a sock without looking and then select another sock
Probability that he select the two black socks is equal to the product of selecting first black sock and second black sock.
[tex]\Rightarrow P=\dfrac{7}{18}\times \dfrac{6}{17}\\\\\Rightarrow P=\dfrac{7}{51}[/tex]
Hence, option (b) is correct.
PLEASE HELP MEEEEEEEEEEEEE
Answer: 20 ft
Step-by-step explanation:
The mirror is set away from the flagpole on the same scale set away from her.
The distance she stand's away from the mirror is 1/4 of the length of the distance between the mirror and the flag pole because she's 1/4 of the flagpole's size.
This means her size x4 is the size for the flag pole. This checks out because 12x4=48
So to find the height we must do 5x4
5x4=20
What are the coefficients in the problem 7a + 5b =c
a and b
5 and c
a,b,and c
7 and 5
Answer:
7 and 5
Step-by-step explanation:
they have variables with them
Answer:
D
Step-by-step explanation:
Rita is spending more time at home to study and practice math. Her efforts are finally paying off. On her first assessment she scored 58 points, then she scores 63 and 68 on her next two assessments. If her scores continued to increase at the same rate, on which assessments will she be scoring above 85? Select all that apply.
Answer:
7th
Step-by-step explanation:
63 - 58 = 5
68-63 = 5
She is adding 5 points each time
a1 = 58
d = 5
a2 = 63
a3 = 68
a4 = 58+5 = 73
a5 = 73+5 = 78
a6 = 78+5 = 83
a7 = 83+5 = 88
This is the first assessment greater then 85, so the 7th assessment
The nth term of a sequence is 33 - 5n
a) Work out the first three terms of the sequence.
wats the answer of 1 2/5 ÷14/15
Answer:
2/5 ÷-14/15
2/5×-15/14
-3/7 is ur answer
Answer:
3/2 = 1 1/2 or 1.5
Step-by-step explanation:
1 2/5 ÷ 14/15
= 7/5 ÷ 14/15
= 7/5 × 15/14
= 3/2 = 1 1/2 or 1.5
Help pleaseeeeeeeeeeeeeeeeeeeeee
Step-by-step explanation:
the answer is in the above image
Answer:
The "x" intercept is a point with coordinates [tex](-\frac{4}{9},0)[/tex].
Step-by-step explanation:
In order to solve this, we need to know that the "x" intercept is the point where the line touches the x-axis, therefore this point will have the "y" coordinate equal to 0. Knowing this, we can substitute "y" with 0 and find the "x" coordinate of the "x" intercept. So we do...
[tex]y = -\frac{9}{2} x - 2\\\\0 = -\frac{9}{2} x - 2\\\\\frac{9}{2} x = - 2\\\\\\x = - \frac{4}{9}[/tex]
Therefore, the "x" intercept is a point with coordinates [tex](-\frac{4}{9},0)[/tex].
is math an easy subject
Answer:
for some people but not all people
Step-by-step explanation:
which statement is true?
Answer:
All parallelograms are quadrilaterals
Answer:
All parallelograms are quadrilaterals.
Step-by-step explanation:
A parallelogram is defined by a polygon with 2 pairs of parallel sides, which implies there are a total of 4 sides in the polygon. Therefore, the parallelogram must be a quadrilateral.
Interpret the numbers and variables in the following questions.
9.
A colony of bacteria doubles in number every hour. The expression 250.2 gives the numb
bacteria after h hours. What does tthe constant 250 in the expression represent?
he constant 250 in the expression represent?
Answer:
The input for the method is a continuous function f, an interval [a, b], and the function values f(a) and f(b). The function values are of opposite sign (there is at least one zero crossing within the interval). Each iteration performs these steps: Calculate c, the midpoint of the interval, c = a + b2.
Step-by-step explanation:
-------------------------
En una fábrica, tres de cada veinte jarrones salen con algún defecto. Si se hacen 1000 jarrones, ¿Cuántos saldran defectuosos?
Answer:
si se hacen 1000 jarrones, 150 saldrán defectuosos.
Step-by-step explanation:
En primer lugar es conveniente determinar el porcentaje de jarrones que salen con algún defecto.
Si 20 corresponde a la cantidad total de jarrones, entonces, se divide 3 sobre 20 para encontrar el porcentaje al que 3 jarrones defectuosos corresponde. La división da como resultado 0,15. Para transformar el valor encontrado en porcentaje, es necesario multiplicar por 100. Entonces, 3 jarrones defectuosos corresponden a 15% de jarrones en total.
Si se hacen 1000 jarrones, es necesario multiplicar por dicho número. Esto es: 15%*1000, obteniendo como resultado 150.
Entonces, si se hacen 1000 jarrones, 150 saldrán defectuosos.
fine measure of each angle indicated
Find the measure of each acute angle.
The measure of the top-left angle in the triangle is__º and the measure of the bottom-right angle is__º.
Answer:
the top angle is 48
the bottom right angle is 42
Step-by-step explanation:
The sum of the angles of a triangle is 180
90 + 8x+7x = 180
Combine like terms
90 +15x = 180
Subtract 90 from each side
15x = 180-90
15x = 90
Divide by 15
15x/15 =90/15
x = 6
8x = 8*6 = 48 so the top angle is 48
7x = 7*6 = 42 so the bottom angle is 42
Solution given:
8x°+7x°+90°=180°[sum of interior angle of a triangle is 180°]
15x=180°-90°
x=90/15
x=6°
8x=8*6=48°
7x=7*6=42°
HELP PLEASE DUE TODAY!
Step 1: 9ft -6ft= 3ft
Step 2: 7ft -4ft= 3ft
Answer: 3ft + 3ft + 7ft + 9ft + 4ft + 6ft= 32 ft
Answer:
54 ft²
Step-by-step explanation:
The figure is composed of 2 rectangles
area of lower one = 4 × (9 - 6) = 4 × 3 = 12 ft²
area of upper one = (4 + 3) × 6 = 7 × 6 = 42 ft²
Then
area of figure = 12 + 42 = 54 ft²
What is Evaluate 3(4 - 2)2
PLEASE HELP WILL MARK BRAINLEST!!!!!
What is the vertex of this graph?
2,13
3,4
4,3
6,13
How many solutions does this parabola have and why does it have that many solutions?
1 solution
2 solutions
3 solutions
No solutions
Sierra applies a coat of epoxy paint to the four sides and floor of a rectangular swimming pool. The pool is 4 feet deep, 18 feet long, and 12 feet wide. One gallon of paint covers 155 square feet. Does sierra use 3 gallons of paint or 4 gallons of paint? Explain
Answer:
4 gallons of paint
Step-by-step explanation:
We solve using the formula for surface area of rectangular prism.
A=2(wl+hl+hw)
Where:
w = Width
h = Height
l = Length
The pool is 4 feet deep, 18 feet long, and 12 feet wide.
Hence,
=2 × (12 × 18 + 4 × 18 + 4 ×12)
=672 square feet
One gallon of paint covers 155 square feet.
Hence,
155 square feet = 1 gallon of paint
672 square feet = x
Cross Multiply
155 square feet × x = 672 square feet × 1 gallon of paint
x = 672 square feet × 1 gallon of paint/ 155 square feet
x = 4.335483871 gallons of paint
Therefore, based on the calculation above, approximately to the nearest whole number, Sierra uses 4 gallons of paint
Anita can clean a typical pool in 8 hours. Chao can clean a typical pool in 6 hours. How long should it take Anita and Chao working together to clean a typical pool? Show all your work. Leave your final answer as an integer or a reduced fraction.
NEEED HEELP
WILL GIVE BRAINEST
Answer:
3 3/7 hours
Step-by-step explanation:
The formula is
1/a+1/b = 1/c
where a and b are the times working alone and c is the time working together
1/8 + 1/6 = 1/c
Multiply each side by 24c to clear the fractions
24c(1/8 + 1/6) = 1/c *24c
3c + 4c = 24
7c = 24
Divide by 7
7c/7 = 24/7
c = 3 3/7 hours
If √9p^6 = 3p^x, then x=____.
balance the following redox reaction by ion electron method.
I2+ HNO3 = HI03+ NO2+ H20
Answer:
BRO I DONT KNOW SORY I NEED POINTS
Step-by-step explanation:
Help me down below
PLEASE
Answer:
there is one more zero
Step-by-step explanation:
now it's 8 million rather than 800 thousand.
Chin was shown the graph of a line that contained point (1, 7). He wrote f(x) = 4x + 3 to correctly represent the line. Which of these equations could represent the same line?
y – 7 = 3(x – 1)
y – 1 = 3(x – 7)
y – 7 = 4(x – 1)
y – 1 = 4(x – 7)
The equation that represents the same line containing point (1, 7) is as follows:
y - 7 = 4(x - 1)
Slope intercept form equation:y - y₁ = m(x - x₁)where
m = slope
The graph of the line contains (1, 7) .He represent the line correctly as f(x) = 4x + 3.
The equation that represent the same line is as follows:
Using the model:
y = mx + b
Therefore,
m = 4
Finally , the equation is as follows:
y - 7 = 4(x - 1)learn more on linear equation: https://brainly.com/question/2409163?referrer=searchResults
please answer thissssss
Answer:
A? oof not sure
Step-by-step explanation:
I dont know
ILL BRAINLIEST YOU IF YOU HELP ME PLEASE
Answer:
C
Step-by-step explanation:
U just gotta learn the definitions
Answer:
C, corresponding angles
Step-by-step explanation:
Im not sure, I was taught it has to be two parallel lines, and r and s are definitely not. Corresponding angles is how you’d describe it if the lines were paralle, the other three do not ( I checked all)
help pls no brainlist if not
Answer my question please!! i will give brainlest!
Answer:
Try 27 and 37
37 for drama club
27 for yearbook club
Hello,
Students in a drama club + in a yearbook club : 64
Students in a drama club : 10 more students than the yearbook club
Let x be the number of students in a drama club and y the number of students in the yearbook club.
We have :
x = y + 10 ⇔ x = 27 + 10 = 37
x + y = 64 ⇔ y + 10 + y = 64 ⇔ 2y = 54 ⇔ y = 27
There are 37 students in the drama club and 27 students in the yearbook club.
:-)
Find the average of 40.6, 10, 0.7, and 120.02
Answer:
42.83
Step-by-step explanation:
add all the numbers and divide by how many their are
1) You are eating 3/4 cup of ice cream, 1/8 cup of chocolate syrup, and one sixteenths cup of cherries. How many (total) cups is your dessert?
Answer:
3/4=ice cream
1/8=chocolate syrup
1/16=cherries
Total=3/4+1/8+1/16
[tex]\frac{3X4}{4X4} +\frac{1X2}{8X2} + \frac{1X1}{16X1} \\\frac{12+2+1}{16} = \frac{15}{6}[/tex]
Total cups =15/6=2.5 cups.
Hoped this helped!
if y varies directly with an x and y=12 when x=-1, find y if x=2
Answer:
y = -24
Step-by-step explanation:
Direct variation is
y = kx where k is a constant
12 = k*(-1)
12/(-1) =k
-12 = k
The equation is y = -12x
Let x = 2
y = -12(2)
y = -24
Twelve apples were cut in thirds. How many pieces of apples are there now?
Answer:
36
Step-by-step explanation:
12*3=36
Justin needs to earn a score of more than 80 on his next math test to earn a B for the semester. Which inequality shows the grades that will allow Justin to earn a B? Please answer!
Answer:
b
Step-by-step explanation:
Justin's score has to be greater than 80. the appropriate inequality sign is >
Note that
> means greater than
< means less than
≥ means greater than or equal to
≤ less than or equal to
On the number line, since the score has to be greater than 80, the line would start from 80 and end on 95
> or < is represented by unfilled circle
≤ or ≥ is represented by filled circle
