Answer: D. A polygon is concave if no diagonal contains points outside the polygon.
Explanation:
Choice A is true since "equiangular" means "equal angles"
Choice B is true since all sides are congruent, and all angles are congruent for a regular polygon
Choice C is true. The term "lateral" means "side".
Choice D is false because a convex polygon is one where all possible line segments contained in the polygon do not spill outside the polygon. Put another way, if points A and B are in a convex polygon, then every point on line segment AB is also in the polygon. Concave polygons don't have this feature. It is possible to draw a line segment where it spills outside the concave polygon.
f(x)=-2x^2+14/x^2-49 which statement describes the behavior of the graph of the function shown at the vertical asymptotes?
Answer:
Option 3 :
x → 7+, y → –[infinity]
Step-by-step explanation:
f(x) = (-2x² + 14)/(x² - 49)
x² - 49 = (x + 7)(x - 7)
Hence f(x) goes to infinity at x = - 7 or 7
x < - 7 = (-ve)(-ve) = + ve
=> x → –7–
Here, x² - 49 is + ve
-7 < x < 7 = (+ve)(-ve) = - ve
=> x → –7+ or x → 7– .
here, x² - 49 is - ve
x > 7 = (+ve)(+ve) = + ve
=> x → 7+
Here, x² - 49 is + ve
So (-2x² + 14) is - ve for all [ x → –7– , x → –7+ , x → 7– , x → 7+ ]
As,
-2(-7)² + 14 = -84 and -2(+7)² + 14 = -84
x → –7– = (-ve)/(+ve)
=> y → -[infinity].
x → –7+ or x → 7– = (-ve)/(-ve)
=> y → [infinity]
x → 7+ = (-ve)/(+ve)
=> y → -[infinity].
x → 7+, y → –[infinity]. is the correct option
The statement (C) as x approaches 7 from the left, y approaches -∞ describe the behavior of the graph of the function.
What is a function?It is defined as a spceial type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
We have a rational function:
[tex]\rm f(x) =\dfrac{-2x^2+14}{x^2-49}[/tex]
x² - 49 cannot be zero:
x² - 49 ≠ 0
x ≠ 7, x ≠ -7
From the graph, as x approaches 7 from the left, y approaches -∞
Thus, the statement (C) as x approaches 7 from the left, y approaches -∞ describe the behavior of the graph of the function.
Learn more about the function here:
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Abhasra bought nine fancy pens for a total of $44.01. How much did each pen cost?
A.) $4.21
B.) $4.89
C.) $4.42
D.) $396.09
Answer:
B.) $4.89
Step-by-step explanation:
44.01 ÷ 9 = 4.89
Answer:
B) $4.89
Step-by-step explanation:
44.01/9 = 4.89
44.01 = the total amount
9 = the amount of pens he got
to check your work you can do 4.89 x 9 which equals 44.01
Fred can paint a 30-foot fence in 5 hours. Which of the following is true?
Answer:
lol
Step-by-step explanation:
What’s an expotential function
Answer:
Overview of the exponential function
The exponential function is one of the most important functions in mathematics (though it would have to admit that the linear function ranks even higher in importance). To form an exponential function, we let the independent variable be the exponent. A simple example is the function
Please mark me brainliest if this helped you ! (by clicking the little crown on my answer) it helps a lot thnx! (≧∇≦)/
What is 6 2/3 x 1 1/2
Answer:
6 2/3 x 1 1/2 is 10
Step-by-step explanation:
If 7x + 5y = 25 and 3x + 2y = 10, what is the value of x +y?
Answer:
Step-by-step explanation:
7x+5y=25
3x+2y=10
21x+15y=75
21x+6y=30
0x+11y=45
11y=45
y=45/11
y = 4.09
sub in 4.09 into equation 1
7x+5(4.09)=25
7x+20.45=25
7x=25-20.45
x=4.55/7
I need help pleaseeeee
does it look like I play any sports?? if so what sports
Answer:
ayyyye i play soccer too lol
Step-by-step explanation:
Answer:
looks like you play softball or basketball
Step-by-step explanation:
In science class, Polly learned that trees help make the oxygen that people breathe. One tree makes about 250 pounds of oxygen each year. Polly wonders how much oxygen the trees on her street make. When she gets home, she counts 32 trees on her street. How many tons of oxygen do they make in a year?
Answer:
They make 4 approximately tons of oxygen each year.
Step-by-step explanation:
( 250lbs × 32 ) ÷ 2000 = 4t
250 pounds because each tree makes about 250 pounds of oxygen a year.
× 32 because there are 32 trees, so they'll make 32 times more oxygen than one tree.
÷ 2000 because before that everything was in pounds, and the question asks about tons. There are 2000 pounds in a ton, so you divide by 2000 to get the answer, which is 4 tons.
Which ordered pairs are solutions to the equation 5x+12y=15?
Alex is selling tickets to a school play. An adult ticket costs $6.50 and a student ticket costs $4.00. Alex sells x adult tickets and 12 student tickets. He made $243 selling tickets. How many adult tickets did he sell?
Answer:
30
Step-by-step explanation:
12x4=48
243-48=195
195/6.50= 30
hope that helps :)
A case of bottled juice contains 30 bottles.Each case contained a total of 507 ounces of juice.Which equation represents the relationship between ounced of juice,y and number of bottles,x A.y=16.9x+30B.y=0.6x C.y=30x+16.9D.y=16.9x
Step-by-step explanation:
the answer is D (y=16.9)
I divided 507 and 30 and got the answer 16.9.
if you would've put any other answer it would've been wrong because the answer had the 30 in it after it was divided.(not sure if its 100% correct)
Use the graph of y = sin x to find all values of x, 0 < x < 2pi, for which the following is true. (Enter your answers as a comma-separated list.)
sin x = 0
Answer:
if x = pi/2, then y =1.
if x = pi/4, then y = [tex]\frac{\sqrt{2 } }{2}[/tex]
if x = pi, then y = 0
Step-by-step explanation:
The required answer as a comma-separated lists are (0, 0), ([tex]\frac{\pi}{6}[/tex], 0.5), ( [tex]\frac{\pi}{4}[/tex], [tex]\frac{1}{\sqrt{2} }[/tex]), ( [tex]\pi[/tex], 0)
Given the equation of a sine graph expressed as:
[tex]y=sinx[/tex] for all values of x within the range 0 < x < 2π
We need to get the value of y for the values of x within the range as shown:
If x = 0;
y = sin0
y = 0
The required solution is (0, 0)
If x = 30;
y = sin30
y = 0.5
The required solution is ([tex]\frac{\pi}{6}[/tex], 0.5)
If x = [tex]\frac{\pi}{4}[/tex];
y = sin [tex]\frac{\pi}{4}[/tex]
y = [tex]\frac{1}{\sqrt{2} }[/tex]
The required solution is ( [tex]\frac{\pi}{4}[/tex], [tex]\frac{1}{\sqrt{2} }[/tex])
If x = [tex]\pi[/tex]
y = sin [tex]\pi[/tex]
y = 0
The required solution is at ( [tex]\pi[/tex], 0)
If x = [tex]2\pi[/tex]
y = sin[tex]2\pi[/tex]
y = 0
Hence the required answer as a comma-separated lists are (0, 0), ([tex]\frac{\pi}{6}[/tex], 0.5), ( [tex]\frac{\pi}{4}[/tex], [tex]\frac{1}{\sqrt{2} }[/tex]), ( [tex]\pi[/tex], 0)
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How many grams are in 1 Bag of suger
Answer:
One pound of granulated sugar converted to gram equals to 453.59 g. How many grams of granulated sugar are in 1 pound? The answer is: The change of 1 lb ( pound ) unit in a granulated sugar measure equals = into 453.59 g ( gram ) as per the equivalent measure and for the same granulated sugar type.
A car is sold for $18,000. After one year, the value of the car is $9,900. Write an exponential function y to determine the value of
the car after x years if the rate of decrease is the same each year.
y =
Estimate the value of the car after 6 years. Round the answer to the nearest dollar.
Answer:
temperature and kinctic energy are related
You deposit $2000 in an account earning 3% interest compounded monthly.How much will you have in the account in 15 years?
Which steps show how to use the distributive property to evaluate 5. 58?
A. 5(58) = 5(50 + 8) = 5.50 – 5.8 = 250 – 40 = 210
B. 5(58) = 5(50 + 8) = 5.50 +8 = 250 + 8 = 258
C. 5(58) = 5(50 + 8) = 5.50 + 50 8 = 250 + 400 = 650
D. 5(58) = 5(50 + 8) = 5.50 +5.8 = 250 + 40 = 290
Answer:
D.
Step-by-step explanation:
You are splitting the equation up. (I don't really know how to explain it sorry)
The correct steps to evaluate 5 · 58 using the distributive property following are: 5(58) = 5(50 + 8) = 5 · 50 +5 · 8 = 250 + 40 = 290.
What is the distributive property of multiplication?The product of a number by addition is equal to the total of the products of that number by each of the addends, according to the distribution property of multiplication.
The correct steps to evaluate 5 · 58 using the distributive property are:
Start with the expression 5 · 58.
Use the distributive property to rewrite the expression as 5(50 + 8).
Use the distributive property again to rewrite the expression as 5 · 50 + 5 · 8.
Calculate the value of each term in the resulting expression:
5 · 50 = 250 and 5 · 8 = 40.
Add the values of the two terms to get the final result:
250 + 40 = 290.
Therefore, the correct answer is D. 5(58) = 5(50 + 8) = 5 · 50 + 5 · 8 = 250 + 40 = 290.
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what is 5/ 16 expressed as a percentage
Answer:
31.25%Step-by-step explanation:
To express a number as a percent we will first divide the top number by the bottom number.
5/16 = 0.3125
A percent is expressed by moving the decimal two places to the left.
31.25%
10 POINTS.. ILL GIVE BRAINLIEST
Solve for x:
a) x = 18
b) x = 19
c) X = 20
d) x = 21
Answer:
D. x = 21
Step-by-step explanation:
So a straight line is equal to 180º and that's what we're trying to figure out here. Set both equations to equal 180, it should look like:
5x + 4x - 9 = 180
Now we just solve!
5x + 4x - 9 = 180
5x + 4x = 9x
9x - 9 = 180
+9 +9
------------------
9x = 189
Divide both sides by 9 to get x by itself.
189/9 = 21
x = 21
What is the solution to the equation 23(y−6)=−(y+2)+1 2 3 ( y - 6 ) = - ( y + 2 ) + 1 ?
Answer:
Substitute the given value into the function and evaluate.
23 (y − 6) = −(y + 2) + 1 = y = 137/24
2 = y = 137/24
3 = y = 137/24
y − 6 = −(y + 2) + 1 = y = 5/2
three-fourths of a number is at least -18
Answer:
3/4*X < -18
( put a line underneath the less than sign ) ( Astric's means multiplication )
Step-by-step explanation:
Hope this helped, Have a Wonderful Day!!
Answer:
x ≥ - 24
Step-by-step explanation:
Let's solve this with an equal sign and then decide how to handle the at least part.
3/4 x = -18 Multiply by 4
3/4 * 4 x = -18*4 Cancel the left, multiply the right.
3x = -72 Divide by 3
x ≥ -24
You need the greater than to indicate that 3/4 of a number can give something larger than - 18.
You need the equal sign to fulfill at least.
At least, in this question means "get larger."
so x > - 24
25 percent of ____ is 6
Answer:
24
Step-by-step explanation:
1/4 of x is 6 so you multiply 6 by 4
PLEASE HELP ILL GIVE AS MANY POINTS AS YOU WANT!!!
And to some reason this was deleted???! Cause I didn’t mean to if I did
Answer:
1. Take the value of X and replace X with that value in the equation.
2. Now you solve Y.
John spent $75 on a shopping trip for new clothes last week. He had expected to spend $100 on clothes. Complete the table.
A 6-column table with 1 row. Column 1 is labeled Approximate Value with entry 100 dollars. Column 2 is labeled Exact Value with entry 75 dollars. Column 3 is labeled Error with entry 25 dollars. Column 4 is labeled Absolute Error with entry 25 dollars. Column 5 is labeled Ratio with entry e. Column 6 is labeled Percent Error with entry f.
What is the ratio? e =
What is the percent error? f =
Answer:
I think it would be Column 2
Step-by-step explanation:
Answer:
What is the ratio? e = 25/75
What is the percent error? f = 33%
Step-by-step explanation:
Consider the function f(x)=xln(x). Let Tn be the nth degree Taylor approximation of f(2) about x=1. Find: T1, T2, T3. find |R3| <= ?
Answer:
R3 <= 0.083
Step-by-step explanation:
f(x)=xlnx,
The derivatives are as follows:
f'(x)=1+lnx,
f"(x)=1/x,
f"'(x)=-1/x²
f^(4)(x)=2/x³
Simialrly;
f(1) = 0,
f'(1) = 1,
f"(1) = 1,
f"'(1) = -1,
f^(4)(1) = 2
As such;
T1 = f(1) + f'(1)(x-1)
T1 = 0+1(x-1)
T1 = x - 1
T2 = f(1)+f'(1)(x-1)+f"(1)/2(x-1)^2
T2 = 0+1(x-1)+1(x-1)^2
T2 = x-1+(x²-2x+1)/2
T2 = x²/2 - 1/2
T3 = f(1)+f'(1)(x-1)+f"(1)/2(x-1)^2+f"'(1)/6(x-1)^3
T3 = 0+1(x-1)+1/2(x-1)^2-1/6(x-1)^3
T3 = 1/6 (-x^3 + 6 x^2 - 3 x - 2)
Thus, T1(2) = 2 - 1
T1(2) = 1
T2 (2) = 2²/2 - 1/2
T2 (2) = 3/2
T2 (2) = 1.5
T3(2) = 1/6 (-2^3 + 6 *2^2 - 3 *2 - 2)
T3(2) = 4/3
T3(2) = 1.333
Since;
f(2) = 2 × ln(2)
f(2) = 2×0.693147 =
f(2) = 1.386294
Since;
f(2) >T3; it is significant to posit that T3 is an underestimate of f(2).
Then; we have, R3 <= | f^(4)(c)/(4!)(x-1)^4 |,
Since;
f^(4)(x)=2/x^3, we have, |f^(4)(c)| <= 2
Finally;
R3 <= |2/(4!)(2-1)^4|
R3 <= | 2 / 24× 1 |
R3 <= 1/12
R3 <= 0.083
Determine whether the given ordered pair is a solution of the system.
(1, -8)
y = 5x - 13
2x + 4y = - 30
Among various populations of plants or animals, diseases spread exponentially. Use the function y = 8000(1 - e^-0.03t) to model the spread of Common Corn Rust through a field of 8000 corn plants, with t equal to the number of days since the first case of the disease. How many plants will be infected with Common Corn Rust after 10 days?
Answer:
It's 2073 on edge2020
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
on edge 2020
1. Find the selling price. Cost of a sled: $99.50. Markup: 95%
2. Find the selling price. Original price of a book: $18.50. Discount: 45%
Answer:
Number 2 is 10 dollars and 17 cents
Number 1 is 194 dollars and 2 cent
Step-by-step explanation:
It cost Randy $515.20 for new carpet in his bedroom. If the room is 11.5 feet wide by 14 feet long, what was the cost per square foot?
Answer:
$3.20
Step-by-step explanation:
First, find the area in square feet of his room:
Use the area formula, A = lw, where l is length and w is width:
A = lw
A = 14(11.5)
A = 161
So, his room is 161 square feet.
To find the cost per square foot, divide 515.20 by 161:
515.20/161
= 3.2
So, the cost per square foot was $3.20
64 divided by 12 4/5
Answer:
..............5
Step-by-step explanation:
64 ÷12 4/5
