Answer:
x=9, y=-6
Step-by-step explanation:
you can add to cancel out the y: -x+3x=18. x=9. You then plug x back to get the value for y.
Which of the following shows the situation below in function notation?
The time it takes to read a book depends on the number of
pages in the book.
O A. Book(pages)
O B. Time(pages)
O c. Pages(time)
O D. Book(time)
Answer:
B.
Step-by-step explanation:
The time is a function of the number of pages.
Time(pages)
Answer: B.
The dimensions of a rectangle are 2x - 5 and 3x – 4. Which expression
best represents the area of the rectangle in simplest terms?
A. -17x^2 -20
B. 6x^2 -23x +20
C. 6x^2 +20
D. 6x^2 -7x -20
Answer:
so you would rewrite them as (2x-5)(3x-4)
then multiply 2x×3x=6x^2 then -5×-4=20
so the expression is C. 6x^2+20
To the nearest degree, find an approximate measure of the angle of elevation to the sun when a tree whose height is 32 meters casts a shadow 35 meters long. Enter a number answer only.
Step-by-step explanation:
the angle of elevation is the angle on the ground at the end of the shadow abs aiming towards the sun.
we know one angle : the 90° between the tree and its shadow (on the ground).
so, we can calculate with Pythagoras the length of the line of sight bergen the end of the shadow and the top of the tree, which is the Hypotenuse of this right-angled triangle.
Hypotenuse² = 32² + 35² = 1024 + 1225 = 2249
Hypotenuse = sqrt(2249) = 47.42362281... m
the height of the tree is the sine of the angle of elevation multiplied by the length of the Hypotenuse (as the radius of the virtual circle).
32 = sin(angle) × sqrt(2249)
sin(angle) = 32/sqrt(2249) = 0.6747692...
angle of elevation = 42.43622979...° ≈ 42°
Need help with question 15! please!!! This is due 02/2/22 which is tmr please!
Answer: x = 6
Step-by-step explanation:
Because we are given that the two figures are already similar, we can set up a proportional relationship to determine the value of x. Since the larger rectangle has a width of 21 and the smaller rectangle has a width of 7, those values can be used as the numerators in the proportion. Since the larger rectangle's length is x plus the additional 3 units on the smaller rectangle, x+3 and 3 can be used as the denominators in the proportion.
Next, we set up the proportion as follows:
[tex]\frac{21}{x+3} =\frac{7}{3}[/tex]
Then, you cross multiply to get the equation:
[tex]63=7x+21[/tex]
After solving down algebraically, you get the value of x to be 6.
I hope this helps!
Please answer with clear instructions so that i can apply this to to other questions
Answer:
25 days
Step-by-step explanation:
If 6 men each work for 5 hours a day: 6 x 5 = 30 hours of work per day
If it takes them 50 days to build the house, then 30 x 50 = 1500 hours work in total to build the house.
If 10 men are working 6 hours a day each: 10 x 6 = 60 hours of work per day.
So 1500 ÷ 60 = 25 days
Therefore, it would take 10 men 25 days to build a house if they were each working 6 hours per day.
Please help. Please tell me the answer and step by step.
Answer:
x = 20
Step-by-step explanation:
We can use ratios to solve
10 16
----- = -------
12.5 x
Using cross products
10x = 16*12.5
10x =200
Divide each side by 10
10x/10 = 200/10
x = 20
need assistance solving for x
THE ANSWER: the answer is 58°
There are boys and girls in a class in the ratio 7:8 What fraction of the pupils are boys?
I'm desperate
Answer:
7:8 also means 7/8.
Hope it helps ;)
Please mark as brainliest!
is this right please let me know
Answer:
I had one just like that you might have to scan it on your phone It looks right but check though
Step-by-step explanation:
Which two figures have the same number of faces?
A. cylinder and cone
B. triangular pyramid and rectangular pyramid
C. rectangular prism and cube
D. triangular prism and triangular pyramid
You go to HEB and purchase a loaf of bread for $1.49, a pack of turkey for $2.08, a pack of cheese for $1.99, and a jar of mayonnaise for $3.13. If you have a coupon that will take 45% off your entire purchase how much will you spend
Find the 4th term in the following sequence (n = 4)
a1 = 8
an = an-1 - 3
Answer:
(a , n ) = ( 1, - 4/7 )
Steps:
1- rewrite the expression
2- solve the equation
3- substitute the value of a
4- solve the equation
5- a possible solution is
6- check the solution
7- simplify
8- the ordered pair is a solution
Khan academy: Point C is the image of C (-4,-2) under a reflection across the y-axis.
Answer:
The coordinates of point C' are (4, -2)
here's why:
When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is taken to be the additive inverse. The reflection of point (x, y) across the y-axis is (-x, y). So if we use this information with the original coordinates, (-4, -2), the new coordinates will be (4, -2).
Look at the photo I’m about to have to math class i need help! I’ve got 15 mins!
I will also give brainlyest for the big help!
Answer:You need to see if the half of the ratio table is equal
Step-by-step explanation:
Three-quarters the product of two numbers m and n. what is it in algebraic expression
Answer:
m × n = 3/4
Step-by-step explanation:
Product means to multiply together so the symbol is a multiplication symbol.
I hope it helps! Have a great day!
Lilac~
91.76 divided by 37 please explain
Answer:
2.48
Step-by-step explanation:
91.76 divided by 37 will result in the answer becoming a decimal.
2.48 is the answer.
HELP GUYS!!!!!!!!!!!!!!!!!!!
So what's given?
[tex]\\ \sf\longmapsto 27e+24[/tex]
What's the common factor found except 1
It's 3Let's see how..
3(9e)=27e3(8)=24So the required simplification is
3(9e+8)Pretty please answer this question I really bad at math
Answer:
The answer is 19, each whole shaded columns are tens, and the mini shaded blocks are ones, add it together and you get 19.
Step-by-step explanation:
As shown at the right, rectangle abcd has vertices c and d on the. V-axis and vertices a and b on the part of the parabola y — 9 — x that is above the. V-axis. A. Express the perimeter p of the rectangle as a function of the. V-coordinate of a. B. What is the domain of the perimeter function?.
a) The perimeter function of the rectangle is [tex]p = 18\cdot x -2\cdot x^{3}[/tex].
b) The domain of the perimeter function is [tex]x \in [-3, 3][/tex].
How to analysis the perimeter formula of a rectangle inside a parabola
a) The perimeter of a rectangle ([tex]p[/tex]) is the sum of the lengths of its four sides:
[tex]p = AB\cdot AC[/tex] (1)
If we know that [tex]AB = 2\cdot x[/tex] and [tex]AC = 9-x^{2}[/tex], then the perimeter of the rectangle is represented by the following formula:
[tex]p = 2\cdot x \cdot (9-x^{2})[/tex]
[tex]p = 18\cdot x -2\cdot x^{3}[/tex]
The perimeter function of the rectangle is [tex]p = 18\cdot x -2\cdot x^{3}[/tex]. [tex]\blacksquare[/tex]
b) The domain of the function is the set of values of [tex]x[/tex] associated to the function. After a quick inspection, we find that the domain of the perimeter function is [tex]x \in [-3, 3][/tex]. [tex]\blacksquare[/tex]
Remark
The statement is incomplete and poorly formatted. The correct form is described below:
As shown at the right, rectangle ABCD has vertices C and D on the x-axis and vertices A and B on the part of the parabola [tex]y = 9-x^{2}[/tex] that is above the x-axis. a) Express the perimeter [tex]p[/tex] of the rectangle as a function of the x-coordinate of A. b) What is the domain of the perimeter function?
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!!!--------------------
Hi!
The Desmos graph is below.
According to the graph, we can see that one of the points is (1, -5).
Additional information:
In inequalities, each equation will be shaded a certain direction/side, and anything in that shaded region is a solution to the equation. With 2 inequalities, the solutions to the equations will be in the double-shaded region.
Also, inequalities will either have a dotted (- - - - -) line or a solid (───) line. You will use a dotted line for inequality equations with > or < symbols, and solid lines for inequality equations with ≥ and ≤ symbols.
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https://brainly.com/question/11234618
FINANCIAL LITERACY The gross domestic product (GDP) for the United States in 2008 was $14.204 trillion, and the GDP per person was $47,580. Use order of magnitude to approximate the population of the United States in 2008.
The population of the United States in 2008 is 298528793.
GDP
Gross domestic product (GDP) is the total monetary or market value of all the finished goods and services produced within a country's over a specific time period
GDP per person = GDP / Population
From the question, GDP = $14.204 trillion, GDP per person was $47,580. Hence:
47580 = 14.204 * 10¹² / Population
Population = 298528793
The population of the United States in 2008 is 298528793.
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What is the mean of the following data: 7, 10, 13, 13, 5, 2, 20
What is the solution to the equation? ^5√x+7 = -2 (Please help!)
A. -39
B. -17
C. 25
D. no solution
Step-by-step explanation:
Here we will, Provide index power 5 on both the sides, so that we can cancel out the 5th power root in the L.H.S
so we get as,
==> x+7 = (-2)^5
==> x+7 = -32
==> x = -32-7
==> x = -39
hence, x = -39
Option A.) is correct.
MR Jones wants to buy 6 tickets to play
each Ticket cost $10 mr jones
has $45 it
his pocket how much more money does he
Need for 6 tickets
Answer: $15
Step-by-step explanation:
6 times 10 = 60
(6 is tickets, $10)
He has $45 but needs $15 more dollars to pay.
60-45=15
in the following parallelogram find the measure of angle S
Answer:
95°
Step-by-step explanation:
opp angles are equal
7x+15=8x+5
x=10
consecutive angles are supplementary
7x+15+s = 180
85+s = 180
s=95°
PLEASE
Solve and reduce to lowest terms
please dont make it long
Answer:
5/21
Step-by-step explanation:
2/7 x 5/6 = 10/42 which reduces to 5/21
Answer:
5/21!
Step-by-step explanation:
Not sure how to explain this, but if you need help just check out step by step guides.
Find the:
SLOPE =
y - Intercept=
x - Intercept=
Of the equation y=x-4
Answer:
slope = 1
y-intercept = (0 , -4)
x - intercept = (4 , 0)
Step-by-step explanation:
y = mx + b
m = slope
b = y-intercept
Note that there is no number besides the x. When this happens, the slope is to be assumed as 1.
The number (and sign) that replaces the b is the y-intercept. In this case, it is (0 , -4).
The x-intercept is the point in which you intercept the y-line at 0. Plug in 0 for y, and solve for x:
0 = 1(x) - 4
0 = x - 4
0 (+4) = x - 4 (+4)
x = 4
x-intercept = (4 , 0)
graph y=-2x. give the domain and range. is the function dicrete or continou?
Answer:
Domain: (−∞,∞),{x|x∈R}
Range: (−∞,∞),{y|y∈R}
Step-by-step explanation:
Find the domain by finding where the function is defined. The range is the set of values that correspond with the domain.
Domain: (−∞,∞),{x|x∈R}
Range: (−∞,∞),{y|y∈R}
Need questions 1-6 done pls
are positive and negative numbers the same?
TRUE or FALSE
False.
Standard numbers, anything greater than zero, are described as 'positive' numbers. ... Numbers that are less than zero are known as 'negative' numbers.So false.
Hope this helps =D
The given statement "Are positive and negative numbers the same" is false.
False. Positive and negative numbers are not the same. Positive numbers are greater than zero, while negative numbers are less than zero. They are opposites of each other.
For example, 10 is a positive number, while -10 is a negative number. 10 is greater than 0, while -10 is less than 0.
Here is a table summarizing the differences between positive and negative numbers:
Feature Positive Numbers Negative Numbers
Value Greater than 0 Less than 0
Sign + -
Location on the number line Right of 0 Left of 0
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