A. associative
associative property which describes the numbers in a multiplication expression can be regrouped using parentheses.
for example: 2x² + 5x + 3 ↔ ( x + 1 ) ( 2x + 3 )
You choose a marble at random from a bag containing 12 red, 12 blue, 15 green, 9 yellow, and 12 black marbles.
Write the probability of the marble is red: as a fraction
as a decimal
and as a percent
You add the marbles together for the denominator.
So 60 marbles altogether. 12/60. This simplifies down to 1/5. Hope this helps.
Vincent made a scale drawing of the auditorium. He used the scale 3 inches : 4 feet. The
stage is 24 inches wide in the drawing. How wide is the actual stage?
feet
Answer:
The multiplier for 3 inches to get to 24 is 8.
If you multiply 3 x 8 to get 24, you need to multiply 4 ft x 8 to keep proportion and this will give you 32ft.
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3) Janel is a bungee-jumper preparing for a legally approved jump off of a bridge over water. Janel wants to just touch
the water on her jump. Janel's path of travel is represented by f(x) = 25x2 – 120x + 144. Janel will jump from the start,
z=0. How many meters will Janel travel laterally before she touches the water?
Answer:
2.4 meters
Step-by-step explanation:
Take f(x) = 0 to find lateral distance covered.
0 = 25x² - 120 + 144
=> (5x - 12)²
=> x = 12/5
=> x = 2.4 meters
So f(x) is 0
[tex]\\ \rm\hookrightarrow 25x^2-120x+144=0[/tex]
[tex]\\ \rm\hookrightarrow (5x)^2-2(5x)(12)+12^2=0[/tex]
[tex]\\ \rm\hookrightarrow (5x-12)^2=0[/tex]
[tex]\\ \rm\hookrightarrow 5x-12=0[/tex]
[tex]\\ \rm\hookrightarrow 5x=12[/tex]
[tex]\\ \rm\hookrightarrow x=12/5[/tex]
[tex]\\ \rm\hookrightarrow x=2.4m[/tex]
A bear weighs 6435 grams. How much does the bear weigh in kilograms
Answer:
6.435
Step-by-step explanation:
To convert from grams to kilograms, you divide the grams by 1000.
So 6435 divided by 1000 is 6.435
if you choose from the vending machine 12 times and choose gelatin 5 times, what is the experimental probability that gelatin is the one you choose?
Answer:
a
Step-by-step explanation:
so, i'm trying to get my missing work done. and i'm not smart enough to do ALL of this work by myself... :/
Answer:
A
Step-by-step explanation:
Am going with a because it says 1,500 per month right for x months and y should be a 1000 because he requires a one time deposited .
Hope this helped
Select the correct answer. A parabola has an x-intercept of -1, a y Intercept of -3, and a minimum of 4 at x = 1. Which graph matches this description?
Answer:
D
Step-by-step explanation:
If the parabola has an x-intercept of -1, we are looking for the curve to intercept the x-axis at x = -1
Graphs A and D both have x-intercepts at x = -1
If the parabola has a y-intercept of -3, we are looking for the curve to intercept the y-axis at y = -3
The only graph with a y-intercept at y = -3 is Graph D
FYI the minimum of Graph D is at (1, -4)
go step by step to reduce the radical
[tex]\sqrt300[/tex]
Answer:
10√3
Step-by-step explanation:
First we do the prime factorisation of 300:
2²×3×5²
Now we put this into our surd:
[tex]\sqrt{(2^{2})(3)(5^{2}) }[/tex]
Now we split them up:
[tex]\sqrt{2^{2} } \sqrt{3} \sqrt{5^{2} }[/tex]
Now we apply the radical rule of [tex]\sqrt{a^{2} } = a[/tex] if a ≥ 0, for 2 then 5
√2² = 2
√5² = 5
2√3 ×5
Simplify to get
10√3
which angle measure 90 degrees and forms a square corner A. acute angle B. obtuse angle C. right angle D. straight angle
Answer:
C. right angle
Step-by-step explanation:
I will upload an image of a right angle that perfectly fits the question:
The angles that measure 90° are called right angles, so the correct option is C.
What is a 90° angle?A 90° angle is the one we get when two perpendicular lines intersect (we actually get four of these).
And are the same ones that we can see on squares or rectangles, where the connecting sides are perpendicular between them.
The name of that type of angle, as one could imagine, is Right Angle (for the nature of the intersection that conforms them). So the correct option is C.
If you want to learn more about right angles, you can read:
https://brainly.com/question/17972372
46 to the nearest interger
46 to the nearest integer is 50
The answer is 46 because 46 can’t be rounded up nor down so it stays the same :P hope this help please give brainleist and rating
What is the measure for
Answer:
66
Step-by-step explanation:
Since it's a 90 degree angle.
90-24=66
Answer:
∠ L = 66°
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180° , then
∠ L + 24° + 90° = 180° , that is
∠ L + 114° = 180° ( subtract 114° from both sides )
∠ L = 66°
What is the product?
Answer:
[tex]21{x}^{7} {y}^{11} [/tex]
third option
Step-by-step explanation:
please mark as the brainliest answer
Answer:
21x^7y^11
Step-by-step explanation:
(7 • x^2 • y^3) (3 • x^5 • y^8)
use distributive property
(7 • 3) (x^2 • x^5) (y^3 • y^8)
(21)(x^7)(y^11)
A circular mirror is surrounded by a square metal frame. The radius of the mirror is 2x. The side length of the metal frame is 8x. What is the area of the metal frame?
Answer:
183.43x2
Step-by-step explanation:
Area of the entire frame = (14x)2 = 196x2
Area of the mirror = pi(2x)2 = 4x2(pi)
Area of the frame surrounding the mirror = (196 - 4pi)x2 = 183.43x2
add
9a+8b-a+b and 10a-9b+6a-1b
Answer:
8a + 9b and 16a - 10b
Step-by-step explanation:
URGENT - How would I write 2 less than triple a number?
Answer:
2 - 3x. I hope this helps!!!
Keecia joins a gym. She pays a membership fee of $75.00 and $49.99 per month for the first 8 months. The gym increases its rates, and she must pay $59.99 per month for the next 4 months. Which numerical expression can be used to find the total cost of the first year of Keecia’s gym membership?
Answer:
$165 is the total cost of the first year of Keecia’s gym membership
Step-by-step explanation:
formula for direct proportion : y = kx
x = 50
y = 75
50 = k * 75
k = 75/50
k = 3/2x
substitute y = 60
60 = 3/2x
x = 3/2 * 60
x = 90
$90 + $75 = $165
Which statement is NOT true of mitosis?
A. Each daughter cell receives a full set of chromosomes.
B. It takes an average of eight minutes for any cell to complete the process.
C. Daughter cells are identical to the parent cell.
D. It is a way old or dying cells can be replaced.
Answer:
D, it is a way or dying cells can be replaced
Step-by-step explanation:
Answer:
d is it
Step-by-step explanation:
Look at this this is 100
Answer: Good job on ur quiz!:)
Answer:
Good stuff love to see it
Step-by-step explanation:
5) Ally is buying a speed boat for $10,000 with a down payment of $2,500. The bank approved a simple interest flat rate loan for 5 years at 7% APR. How much are the monthly loan payments?
(round to the nearest cent)
A) $157.50
B) $168.75
C$180.00
D) $191.25
Answer
168.75
Step-by-step explanation:
I took the test on k12 trust me
help me please I need more math time.
Answer:
7m = t, 42, 56
Step-by-step explanation:
If each mile takes 7 minutes, then the chart is correct in saying that 4 miles takes 28 minutes (7 • 4 = 28)Using this information, we can set up the equation with the knowledge that 7m = t (or, one mile takes 7 minutes)The blanks would be 42 and 56 because we multiply M by 7 each time to get T. For example, we would multiply 6 by 7 to get 42 minutes.If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
h^2=64
Please help me get this answer like I’m stuck I don’t understand this
Answer:
Evaluate the exponent
Multiply the numbers
Add the numbers
Evaluate the square root
Add zero
Multiply the numbers
h=\frac{\pm 16}{2}
Step-by-step explanation:
Answer:
[tex]8^2=64[/tex]
Step-by-step explanation:
Given the following question:
[tex]h^2=64[/tex]
Remember when dealing with exponents we have to multiply the number given by itself, as many times as the exponent.
In this case we have...
[tex]h^2=64[/tex]
[tex]h=8[/tex]
[tex]h^2=8^2=8\times8[/tex]
[tex]8\times8=64[/tex]
If the exponent was three you would multiply the 8 by itself, 3 times.
[tex]8^3=8\times8\times8[/tex]
[tex]8\times8=64\times8=512[/tex]
[tex]8^3=512[/tex]
Hope this helps.
What is the value of x
Answer:
x = 13
Step-by-step explanation:
The angle of a straight line = 180
180-74=106
(8x+2)=106
106-2=104
8x=104
104/8=13
x=13
pls help if u can ill give brainliest
Answer:
70.65cm
Step-by-step explanation:
i believe i have done this before
6 pi equals how many degrees
What is the value of the expression
2((a + b)- b), when a = 7 and b= 1
OA) 14
OB) 49
OC) 126
OD 127
Answer:
OA) 14
Step-by-step explanation:
2((7+1)-1)
2(8-1)
You could expand the brackets then simplify or just simplify now. It will be better to simplify now though but I will do both methods.
Simplifying first:
2(7) = 2 × 7 = 14
Our answer is 14 So answer is OA) 14
Expanding first then simplifying:
2(8-1) = 16-2 = 14
Our answer is 14 So answer is OA) 14
Answer:
14
Step-by-step explanation:
Substitute the values into the equation.
2((a +b) - b)
2((7 + 1) -1)
You can use Distribute first or Solve the parenthesis first it will still give the same answer.
Distributive method.
2((7 + 2) -2)
=((14 + 2) -2)
= 16 -2
=14
Or solve the parenthesis first.
2((7 + 1) -1)
=2(8 -1)
=2(7)
=14
What is 8% written as a decimal?
Answer:
0.08
Step-by-step explanation:
i hope this helps! have a wonderful rest of ur day :)
and if its not too much to ask could you mark me as brainliest pls, im trying to rank up by the end of the month and i only need 2 more, if not it ok! ty and tell me if theres anything else you need help with!!
0.08
if 8% is just 8, and not 80, the it goes in the hundredths place. if it's 80%, it goes in the tens place. like 0.8
Make sense? good
Pls Help me 30 points and will mark you the Brainliest
Answer:
basically cut all the edges off and turn them into a square or a rhombus
Step-by-step explanation:
Answer:i couldn’t do all of them but i did what i could:)
Step-by-step explanation: hope this helps!!
If C=r+7 and D=-2r+3, find an expression that equals 2C−D in standard form.
Answer:
[tex]\huge\boxed{\boxed{\bf\:4r + 11}}[/tex]
Step-by-step explanation:
Given,
C = r + 7D = - 2r + 3We need to find the value of 2C - D. To solve this, we need to substitute the values of C & D in the expression. So,
[tex]\tt\:2\:C - D\\\\\sf\:{Substitute \: the \: given \: values}\\\\\tt\:= 2(r + 7) - (-2r + 3)\\\\\sf\:Now, \: follow \: the \: distributive \:property\\\\\tt\:= 2r + 14 + 2r - 3\\\\\sf\:Rearrange\:the\:terms\\\\\tt\:= 2r + 2r + 14 - 3\\\\\sf\:Do \: the \: required \:arithmetic \: operations\\\\=\boxed{ \bf\:4r + 11}[/tex]
[tex]\rule{200}{2}[/tex]
The answer will be 4r + 11 in the standard form.[tex]\rule{200}{2}[/tex]
Hope this helps!
The expression that equals 2C - D is 4r+ 11
How to determine the expressionThe expressions are given as:
C=r+7 and D=-2r+3
The expression 2C - D is calculated as follows:
2C - D = 2 * (r + 7) - (-2r + 3)
Expand
2C - D = 2r + 14 +2r - 3
Collect like terms
2C - D = 2r +2r+ 14 - 3
Evaluate the like terms
2C - D = 4r+ 11
Hence, the expression that equals 2C - D is 4r+ 11
Read more about expressions at:
https://brainly.com/question/4344214
ANSWER QUICKLY PLEASE
Answer:
A and D
Step-by-step explanation:
B and C are not functions because some inputs have multiple outputs
Carla has 7 FEWER beads than Samantha. Samantha has 35 beads which equations can you use to find B the number of beads Carla has
A: b= 35+7
B: b= 35-7
C: 7= 35-b
D: 35= b+7
E: b-7= 35
