Answer: B
Step-by-step explanation:
Are the following polygons similar ? Explain
Answer:
Two polygons are similar if their corresponding angles are congruent and the corresponding sides have a constant ratio (in other words, if they are proportional). Typically, problems with similar polygons ask for missing sides.
Step-by-step explanation:
A high school band has 63 members. 2/9 of the members play a
brass Instrument. How many students play a brass instrument?
Answer:
Members: 14 hope this helps ;)
Step-by-step explanation:
So, we see that there is 63 members (in all) so then we would do 2/9 x 63 = 14. We have 14 members playing a brass instrument
Find the distance between (2,-9) and (-1,4). Round to the nearest tenth.
The total cost of an order of gift baskets includes the cost of each gift basket plus a one time delivery fee. The cost of each gift basket is the same regardless of how many the customer orders. One company bought 40 gift baskets for their employees for a total of $715. Another company bought 400 gift baskets for $5,935. Based on the information given, what is the cost per gift basket?
Answer:
x = cost of each gift basket = $14.5
y = one time delivery fee = $135
Step-by-step explanation:
Let
x = cost of each gift basket
y = one time delivery fee
40x + y = 715 (1)
400x + y = 5935 (2)
Subtract (1) from (2)
400x - 40x = 5935 - 715
360x = 5220
x = 5220/360
x = 14.5
Substitute x = 14.5 into (1)
40x + y = 715 (1)
40(14.5) + y = 715
580 + y = 715
y = 715 - 580
y = 135
x = cost of each gift basket = $14.5
y = one time delivery fee = $135
What is the completely factored form of this polynomial? 7x4 + 14x3 − 168x2 A. 7x3(x + 4)(x − 6) B. 7x2(x + 4)(x − 6) C. 7x2(x − 4)(x + 6) D. 7x3(x − 4)(x + 6)
Answer:
7x^2*(x-4)*(x+6)
Step-by-step explanation:
7x^4 + 14x^3 - 168x^2
common factor 7x^2
7x^2*( x^2+2x-24)
now we factor ( x^2+2x-24)
(x-4)*(x+6)
Solution
7x^2*(x-4(*(x+6)
The factorized form 7x²(x-4)(x+6) of the polynomial 7x⁴ + 14x³ - 168x².
What is polynomial ?
The polynomial is the defined as mathematical statements that have a minimum of two terms containing variables or numbers.
What are Arithmetic operations?Arithmetic operations can also be specified by the subtract, divide, and multiply built-in functions.
The operator that perform arithmetic operation are called arithmetic operators .
Operators which let do basic mathematical calculation
+ Addition operation : Adds values on either side of the operator.
For example 4 + 2 = 6
- Subtraction operation : Subtracts right hand operand from left hand operand.
for example 4 -2 = 2
* Multiplication operation : Multiplies values on either side of the operator
For example 4*2 = 8
Given polynomial as:
7x⁴ + 14x³ - 168x²
There is a common factor 7x²
7x²( x² + 2x - 24)
To determine the factor of ( x² + 2x - 24)
⇒ 7x²( x² + 2x - 24)
⇒ 7x²( x² + 6x - 4x -24)
⇒ 7x²[x(x+6) - 4(x+6)]
⇒ 7x²(x-4)(x+6)
Hence, the factorized form 7x²(x-4)(x+6) of the polynomial 7x⁴ + 14x³ - 168x².
Learn more about polynomial here:
brainly.com/question/13947055
#SPJ2
Jimmy threw a baseball in the air from the roof of his house. The path followed by the baseball can be modeled by the function f ( t ) = − 8 t 2 + 48 t + 40 , f ( t ) = - 8 t 2 + 48 t + 40 , where t represents the time in seconds after the ball was thrown and f ( t ) f ( t ) represents its height, in feet, from the ground. Part A. How high is the roof from the ground? How many seconds did it take for the ball to hit the ground after it was thrown off the roof? Part B. Jimmy wanted to throw the ball at a maximum height of 120 feet. Did Jimmy's baseball reach this height after it was thrown? Explain your answer.
Answer:
Step-by-step explanation:
The first part of A is easy. Look at the quadratic function, and the constant, the very last number with no t stuck to it represents the height from which the object in question was originally launched. Our constant is 40, so the height of the roof from which the baseball was thrown is 40 feet. Part 2 of A is not quite as simple because it requires factoring using the quadratic formula.Before we do that, let's make our numbers a bit more manageable, shall we? Let's factor out a -8 to get
[tex]f(t) = -(t^2-6t-5)[/tex] and a = 1, b = -6, c = -5.
Filling in the quadratic formula now looks like this:
[tex]t=\frac{6+-\sqrt{6^2-4(1)(-5)} }{2(1)}[/tex] and
[tex]t=\frac{6+-\sqrt{36+40} }{2}[/tex] and
[tex]t=\frac{6+-\sqrt{56} }{2}[/tex] so the 2 solutions are
[tex]t=\frac{6+\sqrt{56} }{2}=6.74sec[/tex] and
[tex]t=\frac{6-\sqrt{56} }{2}=-.742sec[/tex] and since we know time can NEVER be negative, the time it takes for the baseball to hit the ground from a height of 40 feet is 6.74 seconds. Onto part B.
In order to determine exactly how high the baseball did go, we have to find the vertex of the function. We do this by completing the square and getting the function into vertex, or work, form. Begin by setting the quadratic equal to 0, moving over the constant, and then factoring out the leading coefficient. The rule for completing the square are kinda picky in that you have to have a 1 as the leading coefficient, and righ now ours is a -8. So following the rules I stated above:
[tex]-8(t^2-6t)=-40[/tex] Next is the take half the linear term, square it, and then add it to both sides. Our linear term is a -6. Half of -6 is -3, and -3 squared is 9, so we add 9 into the parenthesis first:
[tex]-8(t^2-6t+9)=-40+??[/tex]
Because this is an equation, we can't add 9 to one side without adding the equivalent to the other side. But, we cannot forget about that -8 sitting out front there, refusing to be ignored. We didn't just add in a 9, we actually added in a -8 times 9 which is -72. That's what goes on the right side in place of the ??.
[tex]-8(t^2-6t+9)=-40-72[/tex]
The reason we complete the square is found on the left side of the equals sign. We have, in the process of completing the square, formed a perfect square binomial that will serve as the h in our vertex (h, k) where h is the number of seconds it takes for the baseball to reach its max height of k, whatever k is. That's what we have to find out. Putting the left side into its simplified perfect square binomial and adding the numbers on the right gives us:
[tex]-8(t-3)^2=-112[/tex]
For the last step, add over the -112 and set it back equal to f(t):
[tex]-8(t-3)^2+112=f(t)[/tex] From that we determine that the vertex is (3, 112). The max height of this baseball was 112 feet...so no, it did not make it up to the height of 120 feet that Jimmy wanted for the baseball.
You randomly choose one of the tiles. Without replacing the first tile, you randomly choose a second tile. Find the probability of the compound event. Write your answer as a fraction or percent rounded to the nearest tenth.The probability of choosing a red tile and then a vowel is
A
5
4
2
-6
-5
-4
-3 -2
-1
2
3
4
5
6
-2
-6
The reflection of points across the y-axis is point
The reflection of point Q across the x-axis and the y-axis is point
whose
coordinates are
Answer:
To be honest I don't understand this question
An alarm bell will ring when the pressurized gas in a cylinder reaches an internal pressure that is 215% of the maximum allowable pressure. If the maximum allowable pressure
is 220 pounds per square inch, at what pressure, in pounds per square inch, will the alarm bell ring?
Answer:
The alarm bell will ring at 473 psi.
Step-by-step explanation:
To answer this, find 215% of 220 pounds per square inch:
Convert the percentage 215% to its decimal fraction equivalent, 2.15, and then multiply 220 pounds per square inch by it:
2.15(220 psi) = 473 psi
The alarm bell will ring at 473 psi.
use graph to answer question
Answer:
53.13 degrees
Step-by-step explanation:
From the shape of the graph, we can see that the plotted line forms a right-angled triangle with the x and y coordinates. As a result, we can use laws that govern the geometry of right-angled triangles to evaluate the solution.
[tex]tan \theta = opposite/ adjacent[/tex]
The opposite side in this case is the side directly facing the angle Θ. This is the y - axis value = -4
The adjacent side in this case is the side above the angle Θ. This is the y - axis value = -3
[tex]tan \theta = (-4/-3)\\\theta = tan ^-1(4/3) = 53.13 degrees[/tex]
PLease help me answer this.
Answer:
1093.96
Step-by-step explanation:
900(1+.05)⁴=1093.955625
someone please help me out with these questions . I don’t get them at all.
Answer:
a)similar; b)similar; c)similar; d)NOT similar
Step-by-step explanation:
>In general if
all corresponding angels are ≅, and
all corresponding sides are in proportion
then the Δs are similar
>we have 3 similarity theorems AA, SSS, and SAS
a)
we can use that sum of angles in a triangle is 180 to find the missing angles
180-96-32 = 52
so in the smaller triangle the angles are 96°-52°-32°
in the larger triangle the angles given are 52°-32°
Since there are 2 corresponding angles congruent, AA theorem of similarity says that the 2 triangles are similar. The transformations were that the big triangle was shrunk and rotated
b)
here we are given a pair of congruent angles and we need to check if the sides are in proportion, is 14/44.8 equal to 20/64?
14/44.8 =.3125 is equal to 20/64=.3125
since we have two corresponding sides in proportion and the angles in between them congruent the SAS theorem says that the 2 triangles are similar. The transformation was that the small triangle was dilated.
c)
because we are given the 2 angles are congruent we can conclude that the lines NH and SL are parallel. NH║SL let us conclude that ∡H and ∡ L are congruent because 2 parallel lines cut by a transversal (ML in our case) form congruent angles. So ΔMNH is similar to ΔMSL because of AA theorem of similarity (one pair of A was given congruent, one other pair of A we concluded was congruent)
d)
here we have to check if all the sides are in proportion to see if SSS theorem of similarity applies here
18/90 = .2
44/202.4≈.22
58.5/211.2≈.28
.2≠ .22 ≠ .28
since the sides are not in proportion the 2 triangles are NOT similar.
What is $14.81+$16.19-8cents? plz hurry
Answer:
$30.92
Step-by-step explanation:
Answer:
$23 I hope this helps :)
Step-by-step explanation:
y=x^2+8x+12 what is b
Algebra 1
Note
• f(x)=ax^2+bx+12
b=8
You are installing a ramp for your house because grandma is coming to live with you! If the measure of angle B is 90 degrees and the measure of angle C is 17 degrees, what is the measure of angle A?
Answer:
73
Step-by-step explanation:
I Gotchu!
180=90+17+x
90=17+x
73=x
73!
PLEASE HELP! Solve the system of equations by graphing on your own paper. What is true about the system?
A. There is exactly one solution to the system of equations.
B. There are infinitely many solutions to the system of equations,
C. There are exactly two solutions to the system of equations.
D. There are no solutions to the system of equations.
Answer:
B. There are infinitely many solutions to the system of equations,
Step-by-step explanation:
they are the same line look at image
Misha spent $37.80 on 5 bunches of flowers. There are a dozen flowers in each bunch. How much does each flower cost?
Answer:
1.59
Step-by-step explanation:
12*5 = 60
60/37.80 = 1.59
use graph to answer the question
Answer: [tex]36.86^{\circ}[/tex]
Step-by-step explanation:
Given
Coordinates of Point A is [tex](-3,-4)[/tex] i.e. Point A is 3 units to the left and 4 units below x-axis
From figure, we can write
[tex]\Rightarrow \tan \theta =\dfrac{3}{4}\\\\\Rightarrow \theta=\tan^{-1}\left(\dfrac{3}{4}\right)\\\\\Rightarrow \theta=36.86^{\circ}[/tex]
0.25 reoccuring
as a fraction
Answer:
0. 25 equals 2599 as a fraction.
Step-by-step explanation:
what is the first step when finding the volume of a pyramid?
A. find the area of lateral faces. B. fine the area of the base. C. find the area of the entire pyramid. D. fine the perimeter of the base
WILL GIVE BRAINLIEST PLZ HELP
Step-by-step explanation:
B. Find the area of the base so as to calculate the volume of the prism
Please help me answer this two!! Almost due!
Answer:
he could have:
3 pennies
2 dimes
1 nickel
1 quarter
________
0.53 cents
MAry problem
the number is 249
(i believe)
Step-by-step
What is the value of x? (giving brainliest and thanks to all!)
Answer:
x = 12
Step-by-step explanation:
Given a line parallel to a side of the triangle and it intersects the other 2 sides then it divides those sides proportionally, that is
[tex]\frac{x}{24}[/tex] = [tex]\frac{5}{10}[/tex] ( cross- multiply )
10x = 120 ( divide both sides by 10 )
x = 12
Find the percent of change from 48 people to 71 people. Round to the nearest tenth of a percent if necessary.
Step-by-step explanation:
Here, the number of people has beed increased.
→ Number of people increased = 71 - 48
→ Number of people increased = 23
[tex] \to \% \: change = \left ( \dfrac{23}{71} \times 100 \right ) \: \% \\ [/tex]
[tex] \to \% \: change = \left ( \dfrac{2300}{71} \right ) \: \% \\ [/tex]
[tex] \red{ \to \% \: change = 32.39 \: \%} \\ [/tex]
Therefore, percentage change is 32.39 %.
Can someone please help me out
ASAP I WILL GIVE OUT BRAINLY
Answer:
x = 9
Perimeter = 74
Area = 342
Step-by-step explanation:
First, find x. to do so, set your formula up as
18 = 8x - 54
18 + 54 = 8x
72 = 8x
72/8 = x
9 = x
Now that you have x, find your missing side
2x + 1 = y, x
2 * 9 + = y
19 = y
Your perimeter is P = 2(l+W)
P = 2(18 * 19)
P = 74
Your area is A = wl
A = 19 * 18
A = 342
Answer:
x=9
Perimeter:76 ft
Area:342 ft^2
Step-by-step explanation:
x:
8x-54=18
Then solve for x.
Perimeter: add all sides
(2(9)+1)+(2(9)+1)+18+18
Area: multiply length and width
18 x 19 = 342
You have a job selling cars. your paid $ 2000 a month plus a 5% commission on all your sales (s) build the equation/function that represents your pay (p) based upon your sales (s)
Answer:
p = .05s+2000
Step-by-step explanation:
So we know you get paid 2000 in the beggining of the month which we can say it is the y intercept. We got that part done now when it comes to the commision for every sale (s) you make you get 5 percent so .05s no that you have the commision and base salary all you gotta do is add them up and you get your pay.
2000 + .05s = p
Hope it helped (:
helpppppp meeeee!!!!!
if u answer all 5 questions i´ll give you Brainliest!!!
Answer:
You can use M a t h w a y. and you will get all the correct answers
Step-by-step explanation:
Hope this helps :)
Answer:
question 21: 29
question 16: -1/729
question 15: 1/144
question 14: 1/64
question d=rt, solving for t: answer is Letter G, t=d/r
Step-by-step explanation:
Hope this helps
-2x(6x^4 -7x^2 +x-5 in standard form pls
Answer:
-12x^5 + 14x^3 -2x^2 + 10x
Step-by-step explanation:
-2x(6x^4 -7x^2 +x-5) =
-12x^5 + 14x^3 -2x^2 + 10x
will mark brainliest
Answer:for points vgunvh
Step-by-step explanation:
A store sells cooking oil of two different brands in bottles of the same size. The table below and the equation each show the price (y), in dollars, of different number of bottles of oil (x):
Brand A
Number of Bottles, x Price (dollars), y
2
24
3
36
4
48
5
60
Brand B
y = 15x
How many dollars more is the price of 9 bottles of brand B oil than the price of 9 bottles of brand A oil? (5 points)
a
$3
b
$9
c
$27
Question 1 of 10
Classify the following triangle. Check all that apply.
60
60
60
O A. Isosceles
B. Equilateral
O C. Scalene
O D. Acute
E. Right
Answer:
A, B, & D
Step-by-step explanation:
A. isosceles - 2 sides equal (actually) all sides are equal
B. equilateral - all sides equal and all angles are equal too
D acute - all angles are less than 90 degrees