Answer:
2x^3 - 2x^2 - 9x + 3
Step-by-step explanation:
(2x^3 − 3x + 2) - (2x^2 + 6x − 1) =
2x^3 − 3x + 2 - 2x^2 + (-6x) − (-1) = ==> distribute the negative sign to 2x^2,
6x, and -1 in (2x^2 + 6x − 1)
Adding a negative number is equivalent to subtracting by a positive number.
Subtracting a negative number is equivalent to adding by a positive number.
Hence:
2x^3 − 3x + 2 - 2x^2 - 6x + 1 =
2x^3 - 2x^2 - 3x - 6x + 2 + 1 = ==> rearrange the expression in which like
terms are matching
2x^3 - 2x^2 - 9x + 3 ==> simplify
A bag contains 6 blue marbles, 4 red marbles, and 4 green marbles. You choose one without looking,
What is the probability that it is red or green? Enter your answer as a fraction.
The probability that you choose a red marble or a green marble is
Given:
Number of blue marbles = 6
Number of red marbles = 4
Number of green marbles = 4
Choose one marble without looking,
To find:
The probability that the selected marble is red or green.
Solution:
For the given problem,
Total outcomes = Total number of marbles
= [tex]6+4+4[/tex]
= [tex]14[/tex]
Favorable outcomes = Number of red or green marbles.
= [tex]4+4[/tex]
= [tex]8[/tex]
The probability that the selected marble is red or green, is
[tex]P=\dfrac{\text{Favorable outcome}}{\text{Total outcomes}}[/tex]
[tex]P=\dfrac{8}{14}[/tex]
[tex]P=\dfrac{4}{7}[/tex]
Therefore, the probability that the selected marble is red or green, is [tex]\dfrac{4}{7}[/tex].
BRAINLIEST
a. 45
b. 34
c. 29
d. 56
Find x to the nearest degree
Answer:a. 45
What best summarizes the data?
Answer:
what the question there is no picture
Step-by-step explanation:
What is the area of the trapezoid below?
Answer:
A = 180 units²
Step-by-step explanation:
The area (A) of a trapezoid is calculated as
A = [tex]\frac{1}{2}[/tex] h (b₁ + b₂ )
where h is the perpendicular height and b₁, b₂ the parallel bases
The triangle on the left is right with h = 24 (7- 24- 25 triangle )
Here h = 24, b₁ = 4 and b₂ = 7 + 4 = 11 , then
A = [tex]\frac{1}{2}[/tex] × 24 × (4 + 11) = 12 × 15 = 180 units²
PLEASE HELP!
For what values of x are the following expressions equal to each other.
the binomials x^2 - 6x and 5x-18
Answer:
x = 9, 2
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
The values of x that make the expressions x² - 6x and 5x - 18 equal to each other are x = 2 and x = 9.
What is Equation?Two or more expressions with an Equal sign is called as Equation.
To find the values of x that make the expressions x² - 6x and 5x - 18 equal to each other
We have to set them equal to each other and solve for x:
x² - 6x = 5x - 18
x² - 11x + 18 = 0
Next, we can factor this quadratic equation:
(x - 2)(x - 9) = 0
Now we can use the zero product property and set each factor equal to zero:
x - 2 = 0 or x - 9 = 0
Solving for x, we get:
x = 2 or x = 9
Therefore, the values of x that make the expressions x² - 6x and 5x - 18 equal to each other are x = 2 and x = 9.
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16. April Atherton is an accounting clerk with an annual salary of $22,500. Her benefits include $834 for
vacation, $1,300 for health insurance, $1,035 for unemployment insurance, $1,395 for Social Security, and
$326 for Medicare. What is the rate of benefits?
a. 32.9%
c. 42.8%
b. 21.7%
d22.8%
Answer:B: 42.8%
Step-by-step explanation:because if you subtract all the money she used from the salary she will still have most of her money and I did the math and I got 42.8%
Solve for x in the picture below
Answer:
82 degrees
Step-by-step explanation:
The sum of all angle measurements of a 7 sided polygon is 900 degrees, and the sum of all expressed degrees is 818. 900-818= 82 degrees
Can you plz help me real quick I want good grades so I don't disappoint
Answer:
x= 6
∠FGT = 55
∠GFE = 65
Step-by-step explanation:
enter the decimal equivalent of 11/8
Answer:
1.375
Step-by-step explanation:
Answer:
1.375 would be the answer because if you turn 3/8 into a decimal it = 0.375 so you add the 1 + 0.375 = 1.375 total
Step-by-step explanation:
Where the bullets are those are the answer I can put
Answer:the second one
Step-by-step explanation:
15+b=23 answer this .
Answer:
8
Step-by-step explanation:
hope you have a great day
PLZS ANSWER BY TODAY!
Step-by-step explanation:
Buh fr buh
¿Can i get the answer?
Answer:
15.7
Step-by-step explanation:
5 x 3.14(pi) = 15.7
which is longest 90 centimeters, 40 meters, 30 kilometers, 10 meters, 40 millimeters
Answer:
30 Kilometers
Step-by-step explanation:
The longest measure from the given measures is 30 kilometers.
A no. of measurement values are given in the question.
We have to find out which is the longest from them.
What is the meaning of unit conversion ?
A unit conversion is done to express the same property as a different unit of measurement.
As per the question ;
Some measures i.e., 90 centimeters, 40 meters, 30 kilometers, 10 meters, 40 millimeters are given.
Let's check which is the longest by converting them all in same units say centimeters.
So ;
a) 90 centimeters
= 90 centimeters
b) 40 meters
= 40 × 100 centimeters
= 4000 centimeters
c) 30 kilometers
= 30 × 1000 meters
= 30000 × 100 centimeters
= 3000000 centimeters
d) 10 meters
= 10 × 100
= 1000 centimeters
e) 40 millimeters
= 40 / 10 centimeters
= 4 centimeters
So ; the longest is 30 kilometers.
Thus , the longest measure from the given measures is 30 kilometers.
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Please help with these two (I will report you if you try to give me a link to a virus)
Answer:
1 answer will be false and second answer will be true
The base of a triangle is eleven feet less than
four times its height. If the sum of the lengths of
the base and height of the triangle is 49 feet,
find the area of the triangle.
Answer: 129 Feet
Step-by-step explanation:
You can make an equation where Height=h, and Base=b. So going backwards with the first question, the base will equal 4 times the height: b=4h, and 11 less. b=4h-11. The the other equation will be just that the base plus the height is 49. b+h=49. Then you put that into y=mx+b form. The first equation already is, and the second equation would be b=49-h. So, since the equations equal the same things, you throw away the b. Then you make a new equation by having 4h-11 equal 49-h. Since this is true seeing as they are the same triangle. Then you just use propreties of equality for the equation. You end up with 5h=60. The. You divide 60 by 5 to make 5h just equal h. So you get h=6. Then, like the qeuation said, the base (unknown) plus the height (6) is 49. So to get from 6 to 49, the answer is 43. The formula for that area of a triangle is (base x height) /2 = area. So 43 times 6 is 258. Then divided by 2 is 129. So the area of the triangle is 129.
The area of the triangle is 222 square feet.
Area of a triangle
The formula for calculating the area of the triangle is expressed as:
A = 0.5bh
b is the base of the triangleh is the height of the triangleThe base of a triangle is eleven feet less than four times its height,
b = 4h - 11
Also, if the sum of the lengths of the base and height of the triangle is 49 is expressed as:
b + h = 49
4h-11+h = 49
5h = 49 + 11
5h = 60
h = 12
Since 4h = b + 11
4(12) = b + 11
b = 48 - 11
b = 37
A = 0.5(12)(37)
A = 222ft^2
Hence the area of the triangle is 222 square feet.
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A scientist is studying the motion of waves by measuring the distance between the crests and troughs of waves in a particular area. He set up a
series of buoys at equal intervals, and attached a depth detector to each buoy.
After gathering data, the scientist modeled the positions of the buoys at a specific instance with the given function, where x is the horizontal
distance, in feet, from the first buoy and f(x) is the depth of the water, in feet, at that location.
F(x) = 2cos(x/8x) +13
Select the correct representation of the buoy positions modeled by function
Answer:
this is correct on plato/edmentum
Step-by-step explanation:
Answer:
Letter X!
Step-by-step explanation:
Correct on plato!
9.
Jamal is asked to draw a circle. He is given the center and two points on the
circle, but he isn't told which point is which. The points are (-4,7), (3,6), and
(-1,3). Jamal draws the accurate circle from this information.
What is the equation of the circle he draws?
Answer:
C
Step-by-step explanation:
Hey, so i know you might not need help now, but i got the answer right on mine and it was C.
Hope this helps!
What os 3.6% of 82 and explain plz
2.952
Step-by-step explanation:
First you must convert 3.6% into a decimal which is 0.036 (or move the decimal over twice).
Then multiply 82 by the given decimal
82 x 0.036= 2.952
(round if necessary)
A student is asked to find the length of the hypotenuse of a right triangle. The length of one leg is 28 centimeters, and the length of the other leg is 22 centimeters. The student incorrectly says that the length of the hypotenuse is 7.1 centimeters. Answer parts a and b a. . Find the length of the hypotenuse of the right triangle to the nearest tenth of a centimeter.
A. The length of the hypotenuse of the right triangle to the nearest tenth of a centimeter
b. What mistake might the student have made?
A.
she found the difference of the square roots of the lengths of the legs.
B.
she found the sum of the square roots of the lengths of the legs.
C.
she took the square root of the sum of the lengths of the legs.
D.
she took the square root of the difference of the lengths of the legs.
Click to select your answer and then click Check Answer.
(Round to the nearest tenth as needed.)
Answer:
35.6cm
Step-by-step explanation:
it is quite confusing between choice b and c of what the student did wrong.since I'm not understanding it well it just said c but my point is thay student took the sum of the numbers which were the square roots and added and then found the square root and that was a mistake so she wasn't correct .and if I'm wrong also tell me good day.
Randy is checking to determine if the expressions 2 x + 2 + 4 x and 2 (3 x + 1) are equivalent. When x = 3, he correctly finds that both expressions have a value of 20. When x = 2, he correctly evaluates the first expression to find that 2 x + 2 + 4 x = 14.
What is the value of the second expression when x = 2, and are the two expressions equivalent?
Answer:
14
equivalent
Step-by-step explanation:
x=2
2(3(2)+1)=
2(6+1)=
2(7)=
14
equivalent
HELP PLZ ASAP HELP
I WILL GIVE BRAINLIEST TO WHOEVER SHOWS HOW TO GET THEIR ANSWER
PLZ DONT SPAM BOTS
Answer:
4.5 Cubic Feet
Step-by-step explanation:
1. You want to find the volume of the box. (Length x width x height)
2.5 x 2 x 1.5 = 7.5
2. The present has a volume of 3 cubic feet, so you would subtract that from the volume of the box.
7.5 - 3 = 4.5
3. The volume of the empty space in the box is 4.5 cubic feet.
Hope this helped! :)
pls help!!! this is due in 5 minutes. (pls don’t provide a link, i’ll give brainiest if u don’t just pls help me!!!)
Answer:
B
Step-by-step explanation:
They help support the tree in shallow soil so it does not fall over
Rate this 1-10
You mess with my heart enough for me to hate
I had to even start to debate if you were a good choice
I do not think so, before this I was happy
Until you decided to cheat like you do with everything else
My heart went into two just like how I left
The only one to fix it is you but I keep it broken
I will consider this a token for all the stuff I have done for you
My love will not go away but I will make it leave
Just like you did to me, you did not love me
I could see by the way you looked at anyone else
If you decide to love me I will not return the feeling
That is how my heart will feel because it will not return
You broke it and me I do not see you as human
Rather as a cheater, liar, and a h.oe
I will never love someone like that
But I will never try and treat them like you did me
I have a heart I think you break guys to get your own
All of the shattered hearts that will take to create you one
I will never think of this as a bad choice rather something I needed to do.
Goodbye forever don't even look at me, my queen.
Answer:
wow a 100/10 rate mines
Community- jocelynn johnson
Community is a family,
Someone who help people when in need,
But this is not a community,
This is a place where people feel like they don’t belong,
A place where people have to look around
The corner to make sure their safe,
It is for the days that growing,
For the life that’s growing,
For the changes we made that hurt our loved ones,
That may cause stress throughout the day,
And may cause you to not
Wanna play,
U say your safe,
But the truth is you might get killed at the end of the day,
Why I say,
Cause this neighborhood’s not safe,
And your running on the streets all day,
This community has changed,
All throughout the day,
Cause kids are always joining gangs,
I just wish everything would go back to
Being the same.
Step-by-step explanation:
What is the value of z in the figure shown? 45.6 1148
Answer:
45
Step-by-step explanation:
6) Mrs. Allen needs eggs for a recipe she is making with all of her students. She is buying eggs that come 12 eggs to a carton. If she has 7 eggs left from yesterday's recipe and needs a total of 55 eggs, how many cartons does she need to buy?
What is the area of the triangle?
7
5
4
Answer:8
Step-by-step explanation:
5 times 7 % 4= 35 % 4 =8
One brand of horse feed is made of oats and barley. The ratio of oats to barley is 4 : 11 by mass. How many kilograms of each grain are needed to make 150 kg of feed? (Show your thinking)
Answer:
Below in bold.
Step-by-step explanation:
Fraction of oats = 4/(4+11) = 4/15
So fraction of barley = 11/15
Weight of oats in 150 kg = 150 * 4/15 = 40 kg
and there are 110 kg of barley,
There are 40 kg of oats and 44 kg of barley.
What is mean by Ratio?A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities. And, Total quantity gives after combine as x + y.
We have to given that;
The ratio of oats to barley is 4 : 11 by mass.
Here, The mass of oats = 4x
And, The mass of barley = 11x
Since, There are 150 kg feed.
Hence, We get;
⇒ 4x + 11x = 150
⇒ 15x = 150
⇒ x = 10
Thus, The mass of oats = 4x
= 4 × 10
= 40 kg
And, The mass of barley = 11x
= 11 × 4
= 44 kg
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Do 5/15 and 4/10 form a proportion?
Explain why or why not.
Answer:
No because they are not equal to each other.
Step-by-step explanation:
We can simplify 5/15=4/10 to this
1/3=2/5 They are not equal, and therefore don't form a proportion.
IS THIS RIGHT!! I WILL GIVE YOU BRAINLIEST!!!
Answer:
its right
Step-by-step explanation: