Answer:
21x^2 -29x - 10
Step by step explanation:
Multiply each term of the first function with the terms of the other function:
(3x * 7x) + (3x * 2) + (-5 * 7x) + (-5 * 2)
(21x^2) + (6x) + (-35x) + (-10)
21x^2 + 6x - 35x - 10
Next, combine like terms. The first term is unalike the others, so it stays the same. The second and third terms in that equation are alike, so you can add them together and you get -29x. The last term is -10, which is not like any of the other terms, so it is unaffected. So you're left with 21x^2 -29x -10 as your product.
5. A mystery number has five digits. Use the clues to identify the mystery
number. (2 pts)
- No two digits are the same.
- The number in the tens place is ten times less than 90.
- The number in the ones place is equal to 50 - 10.
- The number in the thousands place is the sum of 6 and 2
· If you add all the digits, the total is 23
- The number is less than 20,000
Answer:
20000
Step-by-step explanation:
Solve for brainliest!
Igor’s summer job at the frozen yogurt shop paid him the following amounts in his first three days on the job (he got paid the same hourly rate every day).
Answer:
$9.50
Step-by-step explanation:
Answer: the unit rate is $9.50
and graph x to (0,0) and y to (1,9.5)
Step-by-step explanation:
PLEASE HELP PLEASE PLEASE HELP ME IMM MARK BRAINLIEST
If the graph of a function increases as x increases and decreases as
decreases, the degree must be____
Answer:
Odd
Step-by-step explanation:
The answer is odd since even powers does the opposite.
the exact diameter of a circle with a circumference of 39
Nelson makes 6 quarts of lemonade. The ratio of pints to quarts is 2 colon 1.
Answer:
12:6, or 12 pints of lemonade
Ms. Haven recorded the number of homework assignments her students completed
and their test grades. Her findings are shown in the table. Which ordered pair is an
outlier in this data set?
Answer:
(6, 97) is the outlier.
Step-by-step explanation:
When we have a data set:
x: x₁, x₂, x₃, ..., xₙ
y: y₁, y₂, y₃, ..., yₙ
Each one of the pairs (x₁, y₁), (x₂, y₂), etc, is an ordered pair that belongs to the data set.
Usually, these values are distributed in some way that, we assume, is normalized. So if one of these ordered pairs is really different from the others, then that pair is called an "outlier".
In the data set, we have:
Number of homework completed vs Score assigned.
You can see that, as the number of homework completed increases, also does the score
For example, for the smaller number of homework completed, (5) the score is 67, the minimum score.
And as the number of homework completed reaches to 10, the score increases to 90 or 98.
But there is an outlier there, you can see that a student that only completed 6 times the homework, has a score of 97 (one of the largest scores) (this score is more than all the scores for the students with 6, 7, 8 and 9 completed homeworks) so we can conclude that this one is the outlier.
(6, 97) is the outlier.
I need answer Immediately!!!!!!!
Identify the MEDIAN among the following data set:
5, 6, 1, 0, 6, 4, 2, 19, 6, 1, and 3.
Answer:
4 & 2
Step-by-step explanation:
Median is the two middle numbers
Answer:
I think the answer should be 4
quick please
7.find the area of the shaded region of the rectangle:
Answer:
6x+2
-2x+1
=
4x+1
just find the area of each and subtract the non-shaded one from the shades area.
HELP M PLEASE HELP I NEED HELP BESTIE!!
✍️Answer:
[tex]y=|x-1|+1[/tex]--------------------------
[tex]1 ~unit ~right~and ~1 ~unit ~up[/tex]▭ ▭ ▭ ▭ ▭ ▭ ▭ ▭
hope it helps.. have a great day!!the coordinates of point D are (-10, -3) and the coordinates for point G are (-2, -3). Where is point D in relation to point G?
Answer: Choice C
Point D is 8 units to the left of point G
=================================================
Explanation:
Refer to the diagram below. I've graphed both points on the same xy grid. We can draw a horizontal line through points D and G to form a number line of sorts. Count the number of spaces along this number line to go from G to D. You should count 8 spaces to the left.
Effectively, this is the same as drawing a number line and plotting -10 and -2 on this number line. We only worry about the x coordinates of the two points since the y coordinates are the same (both are y = -3). Note how -10 is eight units to the left of -2 on the number line.
This week only, the local coffee shop is reducing the price of a cup of coffee from $3.00 to $2.28. By what percentage is the price reduced?
Answer:
31.6% decrease
Step-by-step explanation:
percent of change = difference between original and new values divided by the original value
n = % change
n = 0.72/2.28
n = .3157
n = 31.6%
A parabola has the focus at (4,6) and the directrix of Y equals -6
Answer:
y = (x-4)²
Step-by-step explanation:
vertex (h , k)
h = 4 .... axis of symmetry
k = (6 + -6) / 2 = 0 .... midpoint of focus and directrix
equation of parabola: y = (x-4)² y = (x-h)² + k
Algebraic expression for 3 more than x
Answer:
For example, the phrase "3 more than an unknown number" becomes the mathematical expression "x + 3." Because the unknown number has no explicitly stated value, we label it with a variable x. To get a value three more than x, simply add 3 to it.
hope it helps ya mate. ~^~
Answer:
3 + x
Step-by-step explanation:
"More than" means addition. 3 more than x is saying 3 plus x. In an algebraic expression, this would look like:
3 + x
Will give brainliest for help with Geometry
Answer for first question:
tangent of P= 4/3
cosine of P= 3/5
sine of P= 4/5
Explanation:
tangent = opposite/ adjacent
cosine = adjacent/ hypotenuse
sine = opposite/ hypotenuse
2nd question: x=12
Explanation: When you have a 45-45-90 degree angle the hypotenuse will always be twice the base of the triangle and the longer leg will always be √2 times the base. Here you have the measurement of one of the longer sides- 6√2. Because we have this measurement, we know the base is going to be 6 and the hypotenuse, x, will be 12.
3rd question: cos y
Explanation: Let's give the triangle some measurements to make this easier.
The hypotenuse= 5.
The adjacent side of x= 3.
The opposite side of x= 4.
sine= opposite/ hypotenuse = sin x = 4/5
cosine= adjacent/ hypotenuse = cos x = 3/5
As you see, 3/5 and 4/5 are not equal, but when you try cos y and sin x. You will find that they are equal.
What are the x and y coordinartes of the point at 4pi/3
Kirk made the graph to show his prediction of a population of bacteria over time. Which function best models the data in the graph?
mc001-1. jpg
mc001-3. jpg
mc001-2. jpg
mc001-4. jpg
Jana predicts that the population, y, will grow according to y = 12 log(x + 1) + 10, where x is the time in minutes. How much greater does Kirk’s model predict the population will be after 60 minutes than Jana’s model?
✔ greater by about 50 bacteria
Answer:
greater by about 50 bacteria
hope this helps,
T
Step-by-step explanation:
Populations can be modeled by exponential functions and logarithm functions.
Kirk's function is: [tex]\mathbf{f(x) = (10)2^{\frac{x}{20}}}[/tex]Kirk’s model predict the population will be greater than about 50 bacteria after 60 minutes than Jana’s modelKirk's graph is an exponential function, and it is represented as:
[tex]\mathbf{y = ab^x}[/tex]
From the graph (see attachment);
x = 0, when y =10.
So, we have:
[tex]\mathbf{10 = ab^0}[/tex]
[tex]\mathbf{10 = a\times 1}[/tex]
[tex]\mathbf{10 = a}[/tex]
Rewrite as:
[tex]\mathbf{a = 10 }[/tex]
Substitute [tex]\mathbf{a = 10 }[/tex] in [tex]\mathbf{y = ab^x}[/tex]
So, we have:
[tex]\mathbf{y = 10(b)^x}[/tex]
x = 20, when y =20.
[tex]\mathbf{20 = 10(b)^{20}}[/tex]
Divide both sides by 10
[tex]\mathbf{2 = b^{20}}[/tex]
Take 20th root of both sides
[tex]\mathbf{b = 2^{\frac{1}{20}}}[/tex]
Substitute [tex]\mathbf{b = 2^{\frac{1}{20}}}[/tex] in [tex]\mathbf{y = 10(b)^x}[/tex]
[tex]\mathbf{y = 10(2^{\frac{1}{20}})^x}[/tex]
[tex]\mathbf{y = (10)2^{\frac{x}{20}}}[/tex]
Represent as function
[tex]\mathbf{f(x) = (10)2^{\frac{x}{20}}}[/tex]
So, Kirk's function is: [tex]\mathbf{f(x) = (10)2^{\frac{x}{20}}}[/tex]
When x = 60, we have:
[tex]\mathbf{f(60) = (10)2^{\frac{60}{20}}}[/tex]
[tex]\mathbf{f(60) = (10)2^3}[/tex]
[tex]\mathbf{f(60) = (10)8}[/tex]
[tex]\mathbf{f(60) = 80}[/tex] ---- Kirk's model
For Jana's model, we have:
[tex]\mathbf{y = 12log(x + 1) + 10}[/tex]
Substitute 60 for x
[tex]\mathbf{y = 12log(60 + 1) + 10}[/tex]
[tex]\mathbf{y = 12log(61) + 10}[/tex]
Using a calculator, we have:
[tex]\mathbf{y \approx 31}[/tex] --- Jana's model
Calculate the difference between both models
[tex]\mathbf{d = 80 - 31}[/tex]
[tex]\mathbf{d = 49}[/tex]
Approximate
[tex]\mathbf{d \approx 50}[/tex]
Hence, Kirk’s model predict the population will be greater than about 50 bacteria after 60 minutes than Jana’s model
Read more about population models at:
https://brainly.com/question/8993571
what's the answer ?
[tex] \sqrt{36 \times 9} [/tex]
Answer:
36/2=18
18/2=9
9/3=3
3/3=1
List out the factors used: 2, 2, 3 & 3.
Pick one out of pairs of factors available: 2 & 3.
Multiply them: 2×3 = 6
6 is the square root of 36.
Step-by-step explanation:
hope it helps
please mark brainliest
If bookshelf A is 6 feet long and bookshelf B is 8 feet long, what is the length of bookshelf C?
A.14
B.12
C.16
D.10
Help me please
Answer:
3.5 feet = 3 feet 6 inches
3 * 12 = 36
36 + 6 = 42 inches long
42 / 5/8 → 42 * 8/5 = 42*8/5
336 / 5 = 67.2
We can't put up part of a book, so we can fit 67 books.
Step-by-step explanation:
im struggling and need help fast please show work and tell me how to do it. no links
-22.8 = 6n check your solution
Answer:
-3.8=n
Step-by-step explanation:
My goal is to get n all by itself, but its multiplied by 6. If I do the inverse operation (which is division) on both sides I will get -22.8/6=n. Now I can just simply combine the like terms and finalize my answer. 6 * 3=18 but -22.8 is a decimal number so my answer will range from around 3.5-3.9. if I divide -22.8/6 I get -3.8. My final answer is n=-3.8
how to find the degree in the polynomial
Answer:
To find the degree of the polynomial you need to add up the exponents of each term and pick the highest sum.
make sure answer is in degrees.
sin^-1(sin 17°)
Answer:
uhm 0 degrees
Step-by-step explanation:
The value of the inverse trigonometric expression sin⁻¹(sin 17°) will be 17°.
What is inverse trigonometry?Simply put, inverse trigonometric operations are the opposites of the fundamental trigonometric parameters sine, cosine, secant, cosecant, tangent, and cotangent.
The connection between the lengths and angles of a triangular shape is the subject of trigonometry.
The inverse trigonometric expression is given below.
⇒ sin⁻¹(sin 17°)
We know that the value of sin⁻¹(sin θ) is θ.
Then the value of the inverse trigonometric expression will be
⇒ sin⁻¹(sin 17°)
⇒ 17°
Thus, the value of the inverse trigonometric expression sin⁻¹(sin 17°) will be 17°.
More about the inverse trigonometry link is given below.
https://brainly.com/question/20595059
#SPJ2
Find the mean of the data Length (millimeters) of seeds 6, 4.5, 7.6.7.5.6
Step-by-step explanation:
you need to put it in least to greatest
then you add all of the numbers together then divide by 5
Answer:
mean=6‚4.5,7.6.7.5.6
Step-by-step explanation:
=6
Um..Please help me with this...
Answer:
2,1 4,2 6,3 8,4 10,5 12,6 14,7 16,8 18,9 20,10 etc.
Step-by-step explanation:
help me i need help will mark brainliest
Answer:
C
Step-by-step explanation:
i am smart
Answer: -3? i think..
Step-by-step explanation:
Could someone please answer this, and give an explanation. So I can fully understand it.
Prove this polynomial identity
Answer:
[tex] {(x - y)}^{2} = (x - y)(x - y) \\ = ( {x}^{2} - xy - xy + {y}^{2} ) \\ = ( {x}^{2} - 2xy + {y}^{2} )[/tex]
Margaret is saving money for her summer vacation. She calculates that her starting amount is 0.4% of the total amount she wants to save. What is 0.4% written as a decimal?
Help me plz and thank you
[tex]1) \: 21 + 35.[/tex]
[tex]2) \: 5.[/tex]
Answer:
21 + 355Step-by-step explanation:
1.
To expand the expression 7(3+5), multiply 7 into the numbers in the blanket. That means 7×3 + 7×5 = 21 + 35.
2.
It's the result of the expression on the right. It's 5 because 5(3-2) = 5×3 + 5×2 = 15 - 10.
Kareem ate an apple that had a mass of about 140 ?
A)grams
B)kilograms
Answer:
grams
Step-by-step explanation:
140 kilograms would be the mass of more than a car.