Answer:
Step-by-step explanation:
2x^2+10x+12 greatest common factor is 2
2(x^2+5x+6)=
2(x+2)(x+3)
what's the slope of a line that passes through (-8,-16) and (18,5)?
Answer:
C. 21/26
Step-by-step explanation:
Slope Formula: [tex]m = \frac{y2-y1}{x2-x1}[/tex]
Plug in our coordinates:
m = (5 + 16)/(18 + 8)
m = 21/26
Answer:
C. 21/26
Step-by-step explanation:
Slope is determined by the change (or difference) in the y-coordinates divided by the change (or difference) in the x-coordinates.
Here, our y-coordinates are -16 and 5, so:
5 - (-16) = 5 + 16 = 21
Our x-coordinates are -8 and 18, so:
18 - (-8) = 18 + 8 = 26
Now, we divide: 21/26.
The answer is thus C.
~ an aesthetics lover
Which of the following functions best describes this graph
Answer: its c i took the test
Step-by-step explanation:
A hot air balloon holds 74,000 m3 of helium. The density of helium is 0.1785 kg/m3. What’s the mass of the helium inside the balloon when it’s full? ANSWERS: 6,529 kg 414,565 kg 740 kg 13,209 kg
Which of the following is equivalent to
Answer:
d
Step-by-step explanation:
reciprocal theorem or whatever states that instead of dividing just flip and change sign to multiply
20 POINTS AND BRAINLIEST! There are 2 Senators from each of 50 states. We wish to make a 3-Senator committee in which no two members are from the same state. A) How many ways can we choose three states to be represented?
Answer:
A) 19,600
Step-by-step explanation:
A) How many ways can we choose three states to be represented?
To solve for the above question, we would be using the Combination formula
The combination formula is given as:
C(n , r) = nCr = n!/r! (n - r)!
Where n = 50
We are told that we are to make a 3-Senator committee in which no two members are from the same state. So,
r = 3 ( senator committee)
nCr = n!/r! (n - r)!
50C3 = 50! / 3! (50 - 3)!
50C3 = 50! / 3! × 47!
50C3 = 19,600
Therefore, the number of ways can we choose three states to be represented is 19,600 ways.
Put the following numbers in order from greatest to least 7 030 400, 70 000 200, 78 330, 790 300, 709 400, 70 800
Answer:
70 000 200, 7 030 400, 790 300, 709 400, 78 300, 70 800
Step-by-step explanation:
Greatest is always the number with the most digits.
Answer:
70 000 200, 7 030 400, 790 300, 709 400, 78 330, 70 800
Step-by-step explanation:
To answer this I simply needed to know the orders of numbers from ones, tens, hundreds, thousands, ten thousands, hundred thousands, millions, tens of millions, and hundreds of millions. You must also know which digits hold the most value.
[tex]1\\10\\100\\1,000\\10,000\\100,000\\1,000,000\\10,000,000\\100,000,000[/tex]
The diagram shows a sector of a circle radius 10 cm, 135°. Find the perimeter of the sector
Answer:
22.4 cm
Step-by-step explanation:
Given
r = 10 cm
θ = 135°
Perimeter of sector is:
P = 2r + 2πr(θ/360)
P = 2*10 + 2(3.14)(135/360) = 22.4 cm (rounded)
Multiply the following using the vertical multiplication method:
3x2 + 5x + 1
x x2 - 2x + 4
Answer:
Step-by-step explanation:
the answer is b
The product of the given polynomials is 3x⁴-x³+3x²+18x+4. Therefore, option B is the correct answer.
What is multiplication?Multiplication is an operation that represents the basic idea of repeated addition of the same number. The numbers that are multiplied are called the factors and the result that is obtained after the multiplication of two or more numbers is known as the product of those numbers.
The given expression are 3x² + 5x + 1 and x² - 2x + 4
Now,
3x² + 5x + 1
× x² - 2x + 4
__________
12x²+20x+4
-6x³-10x²-2x
3x⁴+5x³+x²
_______________
3x⁴-x³+3x²+18x+4
Therefore, option B is the correct answer.
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The total cost of a new calculator is
$81.05. This price includes a 10% student
discount. Followed by a 6.5% sales tax.
What was the original price of the
calculator, not including the tax or the
discount?
This question bus incomplete because it lacks the appropriate options.
Complete Question
The total cost of a new calculator is
$81.05. This price includes a 10% student discount. Followed by a 6.5% sales tax. What was the original price of the calculator, not including the tax or the discount?
A. $77.69
B. $83.99
C. $78.80
D. $84.56
Answer:
D. $84.56
Step-by-step explanation:
From the question, we are given the following values
Total cost of a new calculator = $81.05
Student discount = 10%
Sales tax = 6.5%
The formula to use is
Total price = Original price ( 1 ± r)
Where r = rate of the discount or sales tax
Step 1
Find the original price of the calculator without the discount
Because we are calculating using discount we are using the minus sign
Total price = $81.05
r = 10% = 0.1
Total price = Original price ( 1 - r)
$81.05 = Original price (1 - 0.1)
$81.05 = Original Price × 0.9
Original price = $81.05÷ 0.9
= $90.055555556
Approximately, the original price without the 10% discount is $90.06
Step 2
Find the Original price without the sales tax
Because we are calculating using sales tax we are using the plus sign
Total price = $90.06
This is because the Original price without the discount = Current total price with sales tax for step 2
r = 6.5% = 0.065
Total price = Original price ( 1 + r)
$90.06 = Original price (1 + 0.065)
$90.06 = Original Price × 1.065
Original price = $90.06÷ 1.065
= $84.563380282
Approximately, the original price without the 10% discount and 6.5% sales tax is $84.56
can anyone plz help me
Answer:
Bruh.........................
Step-by-step explanation:
Simplify square root of negative 100 . (2 points) A. −10 B. −10i C. 10i D. 10
Answer:
C. 10i
Step-by-step explanation:
I took the quiz and got a 100%
By Simplify square root of negative 100 we get the answer is C (10i).
What is simplification of an expression?
Usually, simplification involves proceeding with the pending operations in the expression.
A Simplification usually involves making the expression simple and easy to use later.
We have the expression:
√-100
Rewriting this yields:
[tex]=\sqrt{-1\cdot100}\\\\=\sqrt{-1}\cdot\sqrt{100}\\\\=i\sqrt{100}=10i[/tex]
Therefore, By Simplify square root of negative 100 we get the answer is C (10i).
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If the graph of the equation y = mx + b is a line passing through the points (6, 13) and (10, 31), what is the value of m? Express your answer as a common fraction.
Answer:
[tex]\frac{9}{2}[/tex]
Step-by-step explanation:
The variable 'm' represents the slope in 'y=mx+b'. We need to find the slope of the two points.
Slope is rise over run. We are given the points of (6, 13) and (10, 31).
[tex]m=\frac{rise}{run}=\frac{31-13}{10-6} =\frac{18}{4} =\huge\boxed{\frac{9}{2}}[/tex]
The slope, or 'm' should be [tex]\frac{9}{2}[/tex].
What is 4.3 as a fraction in simplest form
A candle is burning. It starts out 12 inches long. After 1 hour, it is 10 inches long. After 3 hours, it is 5.5 inches
long.
1. When do you think the candle will burn out completely?
2. Is the height of the candle a function of time? If yes, is it a linear function? Explain your thinking,
Answer:
The equation of the burning of the candle is
[tex]y = -2x + 12[/tex]
It would take 6 hours for the candle to burn out completely.
Step-by-step explanation:
A candle is burning. It starts out 12 inches long.
After 1 hour, it is 10 inches long.
After 3 hours, it is 6 inches (5.5 must be a typing error)
2. Is the height of the candle a function of time? If yes, is it a linear function? Explain your thinking,
The burning of this candle can be modeled by a linear equation of the form
[tex]y = mx + b[/tex]
where y is the length of the candle in inches, x is the time in hours, m is the slope and b is the y-intercept.
The height of the candle is clearly a function of time since it changes with time.
The slope m is given by
[tex]$ m = \frac{y_2 - y_1}{x_2 - x_1} $[/tex]
Where
[tex](x_1, y_1) = (0, 12) \\\\(x_2, y_2) = (1, 10) \\\\[/tex]
[tex]$ m = \frac{10 - 12}{1 - 0} $[/tex]
[tex]m = -2[/tex]
The slope of negative 2 means that the length of the canlde is decreasing by a factor of 2.
To find the value of the y-intercept (b),
substitute (x, y) = (0, 12)
which means that at x = 0 the length of the candle is 12 inches.
[tex]y = mx + b \\\\12 = -2(0) + b \\\\b = 12[/tex]
So the equation of burning of the candle becomes
[tex]y = mx + b \\\\y = -2x + 12 \\\\[/tex]
1. When do you think the candle will burn out completely?
Since we have the equation now we can find the length of the candle for any given time and also find the time required for a specific length of the candle.
Burn out completely means the length of the candle becomes zero.
[tex]y = -2x + 12 \\\\0 = -2x + 12 \\\\-2x = -12 \\\\x = 12/2 \\\\x = 6 \: hours \\\\[/tex]
Therefore, it would take 6 hours for the candle to burn out completely.
p% of m PLEASE HELP IMMEDIATELY
Answer:
pm/ 100 is answer.
Step-by-step explanation:
here, p% of m
=p/100× m
= pm/ 100 ...is answer.
hope its what you are searching for..
Find the area of the right triangle. If necessary, round to the nearest tenth.
A right triangle with side 15 yards and hypotenuse 25 yards.
a.
20 yd
b.
150 yd
c.
60 yd
d.
300 yd
Answer:
B - 150 yd
Step-by-step explanation:
Obviously the first step is to find the missing measurement. To do this, you use the Pythagorean theorem; a² + b² = c².
In this case, let's label the the missing side A, the height B, and the hypotenuse C.
X² + 15² = 25²
Then you must figure out what 15² and 25².
15² = 225
25² = 625
The next step is to subtract 15² (225) from 25² (625), which will give you the result of X².
625 - 225 = 400.
Now you know X² = 400, you can find the square root of 400 to give you the length of the triangle.
√400 = 20.
The missing length of the triangle is 20 yards.
Now it's just a matter of finding the area by using the formula;
A = [tex]\frac{bh}{2}[/tex]
Or,
(20 × 15) ÷ 2 = 150.
And there's your answer. Don't forget to add the units.
Hope this helped.
A computer randomly generates a 5-digit string using numbers between 0 and 9 inclusive. What is the probability that the first two digits in the string are a 4 and a 2 , in that order?
Answer: 0.01.
Step-by-step explanation:
Given: A computer randomly generates a 5-digit string using numbers between 0 and 9 inclusive.
i.e. each place in 5 digit number has 10 choices.
Total ways to make such a number = [tex]10^5=100000[/tex].
If the first two digits in the string are a 4 and a 2, in that order, then the number of ays to make this kind of number = 1 x 1 x 10 x 10 x 10 = 1000 [as 4 and 2 can be put on first and second place in 1 way ]
Now, the probability that the first two digits in the string are a 4 and a 2 , in that order = [tex]\dfrac{1000}{100000}=\dfrac{1}{100}=0.01[/tex]
Hence, the probability that the first two digits in the string are a 4 and a 2 , in that order = 0.01.
Solve for x: –|2x+3|=1
Step-by-step explanation:
-|2x+3|=1
-|2x+3|/-1=1/-1
|2x+3|=-1
2x=-1-3
2x=-4
2x/2=-4/2
x= -2
what pattern exists in each period of 356,039?
Answer:
1/1
Step-by-step explanation:
because that is it
Why is 2i * -2i equal to 4, and not -4i?
Answer:
see below
Step-by-step explanation:
2i * -2i = -4 i^2
We know that i^2 = -1
= -4 * -1
= 4
It is not equal to -4i because we need to multiply i*i which is i^2 not i
Answer:
The answer is 4 (working below), It is not [tex]-4i[/tex] because [tex]i \times i = i^2[/tex].
Step-by-step explanation:
[tex]2i \times -2i[/tex]
Multiply.
[tex]2 \times i \times -2 \times i[/tex]
[tex]-4i^2[/tex]
Apply : [tex]i^2 = -1[/tex]
[tex]-4(-1)[/tex]
[tex]=4[/tex]
Sigma1^30 (3n + 7) = [? ]
Answer:
1425
Step-by-step explanation:
∑ 1 ^30 (3n+1)=4+7+10+... 30 terms
a=4
n=30
d=7-4=3
[tex]S_{30}=\frac{30}{2}[2 \times 4+(30-1) \times 3]\\=15[8+87]\\=15 \times 95\\=1425[/tex]
Answer:
1605
Step-by-step explanation:
hope this helps you guys on acellus
Consider the quadratic function f(x) =
3x2–5x + 12. Which statements are true about the function and its
graph? Select three options.
Answer:
A, B, D
Step-by-step explanation:
Find the interest on $5,432 at 6% for 2 years.
Answer:
the interest is 5.42
Step-by-step explanation:
Answer:
Interest = 5.42
Step-by-step explanation:
Which statement is true? All quadrilaterals have at least 1 pair of parallel sides. Parallelograms have 2 pairs of congruent angles. A rhombus is a rectangle. A trapezoid is a parallelogram.
Answer:
PARALLELOGRAM have 2 pairs of congruent angles
Step-by-step explanation:
QUADRILATERALS have one pair of parallel lines. If it has two sets, it NOW become a PARALLELOGRAM.
The statement first is All quadrilaterals have at least 1 pair of parallel sides. and Parallelograms have 2 pairs of congruent angles that are true.
What is quadrilateral?A figure enclosed by the four sides and the sum of all the angles are equal to 360.
Properties of a quadrilateral are:-
A quadrilateral has four sides (edges)
A quadrilateral has four vertices (corners)
A quadrilateral has interior angles that add to 360 degrees:
Types of quadrilateral are square, rectangle, rhombus, trapezoid, and parallelogram.
So here All quadrilaterals have at least 1 pair of parallel sides. and Parallelograms have 2 pairs of congruent angles that are true.
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74°
X +85
33°
A) 4
C) -12
B) -5
D) -11
74+x+85+33= 180 (bc the sum of the angles of a triangle is 180º)
192=180-x
192-180=-x
12=-x
-12=x
Suppose that y varies directly as x. When x is 7, y is 2. Solve for y when x is 63. (Enter an exact number.)
A family has two cars. The first car has a fuel efficiency of 30 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. During one particular week, the two cars went a combined total of 1050 miles, for a total gas consumption of 50 gallons. How many gallons were consumed by each of the two cars that week?
Answer:
Car 1 consumes 30 gallons of gas.
Car 2 consumes 20 gallons of gas.
Step-by-step explanation:
what is 1 1/16 rounded to the nearest half? ( need answer now please)
Answer:
1
Step-by-step explanation:
Halves:
0
0.5
1
1.5
2
1 1/16 = 1.0625
1.0625 is between 1 and 1.5, but it is much closer to 1 than to 1.5, so answer is 1
The graph shows the speed of Sam's car over time.
Which best describes what is happening in section C?
Speed of Car
His car is stopped.
His car is speeding up.
His car is slowing down.
His car is traveling at a constant speed.
Answer:
Its C
Step-by-step explanation:
The statement which best describes what is happening in section C is His car is slowing down.
What is Speed?Speed is the unit rate in terms of distance travelled by an object and the time taken to travel the distance.
Speed is a scalar quantity as it only has magnitude and no direction.
The graph is attached below.
There are 4 sections on the graph.
In the section A, the car is speeding up since the speed is increasing as the time increases.
In the section B, the speed is constant as the time increases. This means his car is traveling at a constant speed.
In the section C, speed is decreasing with time. So the car is slowing down.
In the section D again the car travels at a constant speed.
Hence in section C, car is slowing down.
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7. A clerk at a bookstore is restocking a shelf of best-selling novels. He has five copies each of three different novels.
a) How many different ways can he arrange the books on the shelf?
b) How many different ways can these books be arranged on the shelf if the copies of the same novel must be grouped together?
Answer:
He can sort the books by alphabetical order.
I would estimate around 5
Step-by-step explanation:
The number of the different ways that the books can be arranged will be 126126 and 6.
What are permutation and combination?A permutation is an act of arranging items or elements in the correct order. Combinations are a way of selecting items or pieces from a group of objects or sets when the order of the components is immaterial.
A clerk at a bookstore is restocking a shelf of best-selling novels. He has five copies each of three different novels.
Then the number of the different ways by which he can arrange the books on the shelf will be
⇒ 15! / (5! x 5! x 5! x 3!)
⇒ 126,126
Then the number of the different ways can these books be arranged on the shelf if the copies of the same novel must be grouped together will be
⇒ 3!
⇒ 6
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