A bag contains 12 red, 30 blue, 20 green, 10 yellow, and 8 black marbles. Nancy chooses 1 marble from the bag. What is the probability that the marble is red, blue, or black?
A.18
B.38
C.58
D.78
Step-by-step explanation:
Total marbles = 12 + 30 + 20 + 10 + 8 = 80
Probability = 12 + 30 + 8 = 50
= 50 / 80 = 5 / 8
(9x2+3x-5) - (3x2+4x-10)
Answer:
39
Step-by-step explanation:
I'm assuming x is supposed to be a multiplication sign.
You need to use PEMDAS for this:
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
(9x2+3x-5)-(3x2+4x-10)=
(18-15)-(6-40)=
3-(-36)=
3+36=
39
The volume of a rectangular prism is v = Lwh, where v is the volume, L is the length, w is the width, and h is the height. Rewrite this equation with w solved in terms of v, l, and h.
Answer:
w=v/lh
Step-by-step explanation:
lwh=v
To isolate w, we'd have to divide both sides by (lh)
Therefore, w = v/lh
Hope this helped and have a good rest of your day!
Solve the following system of equations using any method you want.
y + 2x = 2
2x - 5y = 14 please help
Answer:
y = - 2, x = 2
Step-by-step explanation:
Remove x and solve for y
2x - 2x - 5y - y = 12
-6y = 12
y = - 2
Substitute y back into the equation
-2 + 2x = 2
2x = 4
x = 2
ame
Ex 4 (DOK 2): Equivalent equations have exactly the same
solution set. Select Yes or No to indicate whether each
equation is equivalent to the given equation.
Given: 47x + 2 = -8
Yes
No
Equation
vx + 2 = -2
x + 2 = 4
x = 2
Answer:
yes? idk
Step-by-step explanation:
!!!!!!NEED HELP !!!!!! y=-50x + 750 which of the following does NOT match the equation shown.
Answer:
I think its B
Hope it helps :/
Answer:
y=10x-50
Step-by-step explanation:
Which of the following inequalities is correct?
Answer:
a < b < c
Step-by-step explanation:
a is -4, which is less than b, at 1, and c at 7.
If this answer is correct, please make me Brainliest!
Answer:
the answer is a it cant not be b,c
Please Help Now Running out of time! In Sal’s sock drawer, there are 2 red, 2 blue, 2 yellow, 2 black, and 2 green socks. If he randomly picks one sock from the drawer, and then another, which fractions should Sal multiply to find the probability of choosing a pair of green socks?
Answer:
Step-by-step explanation:
C
Answer:
C
Step-by-step explanation:
2/10 1/9
please help!!! i really need the answer to this question, ill mark you as brainleist
Hey there! I'm happy to help you! :)
We see that there are 160 songs in total. Let's split them up into groups of rock, country, and pop.
ROCK
Our problem says that 3/8 of the songs are rock songs. We know that we have 160 songs. We just need to multiply 3/8 by 160 and we will have the number of rock songs.
3/8*160=60
Therefore, we have 60 rock songs.
COUNTRY
We see that 25% of our songs are country songs. 25% is the same thing as 1/4, or 0.25. We can multiply this by our total number of songs to see how many are country.
0.25(160)= 40
We have 40 country songs.
POP
All we have in the problem is that the remaining songs are pop. The nice thing is is that we already know how many rock and country songs we have, so we can simply subtract those from 160 and we will then be able to tell how many pop songs there are.
160-60-40= 60
Therefore, there are 60 pop songs.
I hope that this helps you! Have a wonderful day!
Which graph represents -x+ 8y > - 24
Kind of need a picture to help answer the question.
Using the graphing function on your calculator, find the solution to the system
of equations shown below.
2y - 4x = 6
y-2x = 7
A. No solution
B. More than 1 solution
C. x = 4, y = -2
D. x= -1, y = 1
Answer:
A: no solution
Step-by-step explanation:
The lines will always be 2 spaces apart
Answer:
A. No solution
Step-by-step explanation:
I graphed the equations on the graph below and noticed that the lines appear to be parallel, which means they don't intersect at any point.
If this answer is correct, please make me Brainliest!
May someone please help with this graph and equation please?
Answer:
y=-2x+8
Step-by-step explanation:
help me plz ill mark u brailiest
Answer:
The product of 21 and 18
Step-by-step explanation:
When you multiply the word is product
The product of 21 and 18
Answer:
the answer is H
Step-by-step explanation:
Which could be the entire interval over which the function, f(x), is negative?
(-8, -2)
(-8, 0)
(-infinity, -6)
(-infinity, -4)
The interval over which the function f(x) is negative is (-infinity, -4) .
Given,
The values of f(x) for corresponding x .
Here,
From the table,
x = -8 ; f(x) = -16
x = -6 ; f(x) = -8
Thus from the data given in the table it is clear that the function f(x) will be negative if we decrease the value of x .
Thus f(x) will be negative for the values which are smaller than -8 .
Now,
When
x = -4 ; f(x) = 0
x = -2 ; f(x) = 8
Thus f(x) changes its sign at x = -4.
So,
Interval in which f(x) will be negative : (-infinity, -4) .
Know more about functions,
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Determine whether each statement is true or false.
(FINALEXAM)
Answer:
1. False
2. True
Step-by-step explanation:
What is the area of one of the triangular faces?
4 in
3 in
7 in
7 in
5 in
4 in
5 in
Answer:6
Step-by-step explanation:
I got it corrected on the assignment
Answer:
it is 6
Step-by-step explanation:
the person above me is right :) have a nice day
(◍•ᴗ•◍)✧*。
Which fraction is greater than 3/5
4/6
6/12
3/8
4/10
Answer:
a.) 4/6
Step-by-step explanation:
3/5 = .6
4/6 = .666666666667
6/12= 0.5
3/8= .375
4/10= .4
Answer: 4/6
Step-by-step explanation:
IT IS THE BIGGEST. :)
In the number 9.13 what is the value of the digit 3, written as a fraction?
Answer:
The value of the digit 3, written as a fraction is[tex]\frac{3}{100}[/tex]
Step-by-step explanation:
Number : 9.13
A place value tells you the location of each digit in a number.
If a number has a decimal point,
The first digit to the right of the decimal point is the number of tenths.
The second digit to the right of the decimal point is the number of hundredths.
The first digit to the left of the decimal point is the number of ones.
The second digit to the right of the decimal point is the number of tens.
So, The digit three is The second digit to the right of the decimal point is the number of hundredths.
So, the value of the digit 3, written as a fraction is[tex]\frac{3}{100}[/tex]
The required value of the digit 3, written as a fraction is 3\100.
We have to determine, In the number 9.13 what is the value of the digit 3, written as a fraction.
According to the question,
Given number : 9.13
A place value tells you the location of each digit in a number.
If a number has a decimal point,
The first digit to the right of the decimal point is the number of tenths.
The second digit to the right of the decimal point is the number of hundredths.
The first digit to the left of the decimal point is the number of ones.
The second digit to the right of the decimal point is the number of tens.
So, The digit three is the second digit to the right of the decimal point is the number of hundredths.
Hence, The required value of the digit 3, written as a fraction is 3\100.
To know more about Function click the link given below.
https://brainly.com/question/16503308
What is the slope of a line that passes through points (2,17) and (3,24)?
Slope: [tex]\frac{y2-y1}{x2-x1}[/tex]
= [tex]\frac{24 - 17}{3 - 2}[/tex] = [tex]\frac{7}{1}[/tex] = 7
Slope = 7
Happy to help!
Which of the following rational functions is graphed below?
Answer:
the answer is A, u can try graphing it if u need to verify
Considering it's asymptotes, it is found that the rational function graphed below is given by:
A. [tex]F(x) = \frac{1}{(x - 6)(x + 6)}[/tex]
What are the asymptotes of a function f(x)?The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator.The horizontal asymptote is the value of f(x) as x goes to infinity, as long as this value is different of infinity.In this question, looking at the graph, it is found that there are vertical asymptotes at x = -6 and x = 6, and an horizontal asymptote at y = 0, hence the function is given by:
A. [tex]F(x) = \frac{1}{(x - 6)(x + 6)}[/tex]
More can be learned about asymptotes at https://brainly.com/question/16948935
Find the area of a circle whose circumference is 87 m.
A. 4 m 2
B. 8 m2
C. 16 m2
D. 64 m2
Answer:
None of those are right, the answer is about 602.32 m2
Step-by-step explanation:
What is the area of the triangle shown below?
Answer:
48
Step-by-step explanation:
Split it into 2 right triangles flip one around and you have a rectangle who's area is equal to 10x6.
a=6
c=2
b=?
Solve for b:
A stick 1 meter long casts a shadow 1.5 meters long. A building casts a shadow 17 meters long. How tall is the building (to 2 decimal places)
A dance floor is in the shape of a rectangle.
It is 25 meters long and 24 meters wide.
What is its perimeter?
C
meters
Х
5
?
Answer: 98
Step-by-step explanation: 25+24+25+24
There are two parts to a rectangle. The opposite sides are the same. You add them all up to equal 98.
Hope this helps and would appreciate getting brainliest to level up :)
Ken baked a pan of brownies for a potluck. The number of squares he cuts the brownies into will depend on the number of people attending the potluck. s = the number of squares Ken cuts the brownies into. p = the number of people attending the potluck. Which of the variables is independent and which is dependent?
Answer:
P is the independent variable while S is the dependent variable
Hope this Helps :)
Write a formula for quadratic function if its graph has the vertex at point (0,6) and passes through the point (−1,−2).
Answer:
y = - 8x² + 6
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (0, 6), thus
y = a(x - 0)² + 6, that is
y = ax² + 6
To find a substitute (- 1, - 2) into the equation
- 2 = a(- 1)² + 6, that is
- 2 = a + 6 ( subtract 6 from both sides )
- 8 = a
y = - 8x² + 6
The formula of the quadratic function is [tex]y = -8x^2 + 6[/tex]
A quadratic function is represented as:
[tex]y = a(x - h)^2 + k[/tex]
The vertex of the quadratic function is given as:
[tex](h,k) = (0,6)[/tex]
So, we have:
[tex]y = a(x - 0)^2 + 6[/tex]
This gives:
[tex]y = ax^2 + 6[/tex]
The quadratic function passes through (-1,-2).
So, we have:
[tex]-2 = a(-1)^2 + 6[/tex]
[tex]-2 = a + 6[/tex]
Subtract 6 from both sides
[tex]a = -8[/tex]
Substitute -8 for a in [tex]y = ax^2 + 6[/tex]
[tex]y = -8x^2 + 6[/tex]
Hence, the formula of the quadratic function is [tex]y = -8x^2 + 6[/tex]
Read more about quadratic functions at:
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Which has a value closest to 9?
✓99
V83
VIO
V63
Answer:
[tex]\sqrt{83\\}[/tex] has the closet value to 9 bc its 9.11
Someone please help me. I’m not good at mah but I would be thankful for ur help.
Answer:
1. 44 inches
hope this helps :)
what is 9^3 as a power of 3
Answer:
729
Step-by-step explanation:
9³ you just type that in the calculator
Answer:
[tex] {3}^{6}[/tex]
Step-by-step explanation:
[tex] \huge {9}^{3} \\ \huge= ( {3}^{2} )^{3} \\ \huge = {3}^{2 \times 3} \\ \huge= {3}^{6}[/tex]
Kathy found the volume of the figure using the expression (4 * 3 * 8) + (10 * 3 * 4). Sandy found the volume of the figure using the expression (3 * 10 x 4) + (4 * 3 * 4). Use the drop-down menus to explain who is correct. 10 cm Click the arrows to choose an answer from each menu, The expression for the volume of the figure was correctly determined by Choose... because the figure was divided into two rectangular → prisms that Choose...
Answer:
The correct options are;
1) Sandy is correct
2) The figure was divided into two rectangular prisms that are calculated separately
Step-by-step explanation:
Here we have to divide the figure into two rectangular prisms so as not to calculate for a dimension twice
Therefore, the figure can be split into a horizontal prism at the top with dimensions and volume = 10 × 4 × 3 and the vertical prism below will now have a dimension and hence, volume of 4 × 4 × 3
Therefore the volume of the figure is the sum of the volumes of the two prisms found as follows;
Volume of the figure = 10 × 4 × 3 + 4 × 4 × 3 = 168
We can try the othe way to confirm as follows
Volume of the prism below = 4 × 3 × 8 = 96
Volume of the horizontal prism above is now = 4 × 3 × 6 = 72
Volumre of the figure = 96 + 72 = 168
Therefore, since the volume = (10 × 4 × 3) + (4 × 4 × 3), Sandy is correct
Because the figure was divided into two rectangular prisms that are calculated separately.
Answer:
1(sandy is correct)
2(do not overlap
Step-by-step explanation: