Answer:
B.
Step-by-step explanation:
b is the correct answer
Has anyone took the parametric functions test part 1 for pre calculus ???? if so do you remember the answers??? offering lots of points
Answer:
No I dont, and this is only 5 pts
Step-by-step explanation:
find the length of the arc.Round your answer to the nearest tenth
Find the circumference:
Circumference = 2 x pi x radius
Circumference = 2 x 3.14 x 9 = 56.52 inches
the arc length is 45 degrees/360 degrees of the circumference.
Marc length = 56.52 x 45/360 = 7.065 inches
Rounded to the nearest tenth = 7.1 inches
The probability that mary picks a yellow marble out of a bag of marbles is 0.35. there are 500 marbles in the bag. work out how many yellow marbles there are.
Answer:
175
Step-by-step explanation:
500*.35
Find an explicit function rule for the following sequence defined over the natural numbers: –7, –1, 9, 23, . . .
A. an=9n²+2
B. an=2n²+9
C. an=9n²-2
D. an=2n²-9
===========================================================
Reason:
Replace n with 1 in choice A to get
[tex]a_n = 9n^2 + 2\\\\a_1 = 9(1)^2 + 2\\\\a_1 = 11\\\\[/tex]
Choice A says the first term is 11, but this contradicts the fact that the first term should be -7 instead. Therefore, we cross choice A off the list.
You should find that choice B is the exact same story, so it must be eliminated as well.
Choice C has n = 1 get us [tex]a_1 = 7[/tex] which is close, but we want the result to be negative 7 instead of positive. Choice C is eliminated as well.
The only thing left is choice D. Sure enough, plugging in n = 1 does lead to the first term of -7. If you tried n = 2, then it would get you -1 as the second term, and so on. This confirms choice D is the correct answer.
Which statement is true about the solutions for the equation 4y + 6 = −2? (5 points) Hint: If you are solving for ONE variable, how many solutions will you have? a It has infinitely many solutions. b It has two solutions. c It has one solution. d It has no solution.
Answer: C) has one solution
That solution is y = -2
=======================================
Work Shown:
4y + 6 = -2
4y = -2-6
4y = -8
y = -8/4
y = -2
I first subtracted 6 from both sides (step 2), then I divided both sides by 4 (in step 4) to fully isolate y. We get one solution here.
Check:
4y + 6 = -2
4(-2) + 6 = -2
-8+6 = -2
-2 = -2
The solution is confirmed.
x2 + 5x + 6
x2 + 8x + 12
y2-7y + 12
y? - 11y + 28
x2 - 3x - 40
here I hope this helps you. Always have 2 bracket when factoring trinomials and know you prime factors
Multiply and show the steps on how to solve this
(2-3x) (3+8x)
Answer:
-24x² + 7x + 6
Step-by-step explanation:
(2 - 3x)(3 + 8x)6 - 9x + 16x - 24x²-24x² + 7x + 6Answer:
-24x²+7x+6
Step-by-step explanation:
Rearrange terms
Rearrange terms
(2-3x)(3+8x)
(-3x+2)(3+ 8x)
(-3x+2)(3+ 8x)
(-3x + 2)(8x + 3)
3
Distribute
(-3x+2)(8x + 3)
-3x(8x + 3) + 2(8x + 3)
4
Distribute
-3x(8x + 3) + 2(8x + 3)
-24x2-9x + 2(8x + 3)
Distribute
-24x² - 9x + 2(8x + 3)
-24x² - 9x + 16x + 6
6
Combine like terms
-24x²-9x + 16x + 6
-24x²+7x+6
Solution
-24x²+7x+6
The diameter of the center circle on a soccer field is 20 yards. What is the area of the circle?
Answer: pie × r² = 314
Step-by-step explanation:
3.14 ×10 × 10 where r is diameter/2
Does anybody know this?Find the area of the shaded region if PA=7 inches and PB=4 inches
Hi Student!
The first step that we must take before attempting to solve the problem is to gather important information. Looking at the problem we are given two lengths, PA and PB. These two lengths make up the radius of two different circles which we will need to find the area for both of them. The other important information that we must take in is that we are trying to determine the area of the shaded region.
Now that we have our important information concluded, let's move onto solving the problem. We know that we are trying to determine the area of the shaded region which means that we will need to do some subtraction between the total area of the larger circle and the total area of the smaller circle.
Area of a Circle Formula
[tex]A=\pi*r^2[/tex]Plug in the information
[tex]Shaded\ Region = Larger\ Circle - Smaller\ Circle[/tex][tex]Shaded\ Region = (\pi *PA^2)-(\pi*PB^2)[/tex][tex]Shaded\ Region = (\pi *(7\ in)^2)-(\pi*(4\ in)^2)[/tex]Simplify the exponents
[tex]Shaded\ Region = (\pi *49\ in^2)-(\pi*16\ in^2)[/tex]Subtract
[tex]Shaded\ Region = 49\ in^2*\pi-16\ in^2*\pi[/tex][tex]Shaded\ Region = 33\ in^2*\pi[/tex]Therefore, our final answer would be that the shaded region is 33 inches squared times pi which is best described in Option D. We got this after subtracting the area of the smaller circle from the area of the larger circle which provides us with the area of the shaded region.
A wheel has a radius of 4 inches and travels as it spins. How far does the wheel travel
in one revolution? Round your answer to the nearest inch.
Use the pi (T) on the calculator.
Use formula for circumference to figure out the answer: C = 277 (or) C = ad
The distance a tire travels is equal it it’s circumference.
circumference = pi x radius x 2
Circumference = 25.13 inches
Rounded to nearest inch = 25 inches
Find the nth term of the following sequence;
-5, -2, 3, 10, 19
Answer:
n= -5+ 7(n-1)
Step-by-step explanation:
The garden shown at right is divided into two section by a fence. If the quadrilateral section is a square, what is the square area? (6ft : 8ft)
The area of the triangle is 24 ft² while the area of the square is 64 ft²
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Area of triangle = (1/2) * base * height = 0.5 * 8 * 6 = 24 ft²
Area of square = 8 ft * 8 ft = 64 ft²
The area of the triangle is 24 ft² while the area of the square is 64 ft²
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Which of the following is equivalent to x + 1/y ÷ g + 1/h
x + 1 / y ÷ h / g + 1
x + 1 / y · h / g + 1
y / x+1 ÷ g + 1 / h
x/y · h/g
Answer:
say what now?
Step-by-step explanation:
Using the image above, what is the measure of side GF?
The measure of side GF is solved to be
1.73 How to find the measure of side GFToo side GF we use trigonometry tan, in the formula
tan x = opposite / adjacent
Where x is the given angle and opposite and adjacent are the legs of the right triangle
In this case, opposite = EF = 3, and adjacent = GF, x = 60 degrees
tan 60 = 3 / GF
Isolating GF results to
GF = 3 / tan 60
GF = 1.73205080757
GF = 1.73
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Divide. 58)48,894
please help
Hi~!
Answer:
843
Step-by-step explanation:
We know that 58 is a even number, and so is 48,894. So we can check this by multiplying 843, which is th number I got when I divided it, and multiply that by 58, then we get 48,894.
I hope this helps!~ :)
Answer:
843
Step-by-step explanation:
In long division, first take the first digit of the dividend from the left. Check if this digit is greater than or equal to the divisor, then divide it by the divisor and write the answer on top as the quotient. After, subtract the result from the digit and write the difference below. Bring down the next digit of the dividend (if present). Lastly, repeat the same process.
00,843
58)48,894
- 464 ↓↓
----------------
249 ↓
- 232 ↓
----------------
174
- 174
-----------------
0
From this, we can see that 58 goes into 48,894 843 times. In other words, 48,894 ÷ 58 is 843.
hope this helps!
A.point 1
B.point 2
C.point 3
D.point 4
E.point 5
Answer: Point 2, because Point B will have shrunk slightly if dilated by a factor that is a fraction.
Plsss help.
How do poets use rhythm to support the meanings in their poems?
they put lots of harsh-sounding words in their poems
they repeat sounds at the end of each line
they put words together in a way that sounds like what the poem means
they make up a musical score for playing an instrument while reading the poem
Answer:
they put words together in a way that sounds like what the poem means.
2. What are the x-intercepts of the graph of the function defined by (x - 2)(2x + 1)? A. (2,0) and (-1,0) B. (2,0) and (1,0) C. (-2,0) and (1,0) D. (-2,0) and (-1,0)
The x-intercepts of the graph of the function defined by (x - 2)(2x + 1) will be at (2,0) and (0.5,0).
what is a quadratic equation?The polynomial having a degree of two or the maximum power of the variable in a polynomial will be 2 is defined as the quadratic equation and it will cut two intercepts on the graph at x-axis.
Here we are having an equation:-
(x-2)(2x+1)=0
2x²+x-4x-2=0
2x²-3x-2=0
2x²-4x+x-2=0
2x(-1)(x-2)=0
x=2 x=0.5
Hence the x-intercepts of the graph of the function defined by (x - 2)(2x + 1) will be at (2,0) and (0.5,0).
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I'm taking a test and don't know how to solve this problem :')
The triangle PSQ is an isosceles triangle, and the area of the triangle PSQ is 1360.62 square units
How to determine the area?The given parameters are:
PS = SQ
Perimeter, P = 50
SQ - PQ = 1
The perimeter is calculated using:
PS + SQ + PQ = 50
This gives
2SQ + PQ = 50
Make SQ the subject in SQ - PQ = 1
SQ = 1 + PQ
So, the equation 2SQ + PQ = 50 becomes
2(1 + PQ) + PQ = 50
Expand
2 + 2PQ + PQ = 50
Evaluate like terms
3PQ = 48
Divide by 3
PQ = 16
Substitute PQ = 16 in SQ - PQ = 1
SQ - 16 = 1
So:
SQ = 17
The area is then calculated using:
A = √[P * (P - PS) * (P - SQ) * (P - PQ)]
This gives
A = √[50 * (50 - 17) * (50 - 17) * (50 - 16)]
Evaluate
A = 1360.62
Hence, the area of the triangle PSQ is 1360.62 square units
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giving brainliest!!!!
A is the answer
all equalateral triangles' angles = 60
70 - 10 = 60 Y
55 + 5 = 60 X
Answer:
y = 70 degrees
x = 55 degrees
Step-by-step explanation:
y-10 = 60
x+5 = 60
y = 70
x = 55
A angles equal 60 degrees if equalateral!
What is square root of pi^2 = ?
Answer:
Pi
Step-by-step explanation:
The square root and exponent cancel each other out.
3) Emily bought some wrapping paper for Christmas that was 2 feet long and 8 feet wide. What is the area of the wrapping paper she bought?
Answer:
16 ft
Step-by-step explanation:
lengh x width = A
2 x 8 = A
16 = A
Billy’s medical bills have been sent to a collection agency. He’s been stressed out for the past few days because agents have been calling him in the early hours of the morning and warning him they’ll have to report him because he has committed a crime. What do you tell Billy? Do you have any advice on what he can do?
Answer:
First of all, I could inform Billy that collection agencies cannot falsely claim that he had committed a crime or say that he will be arrested if he does not repay the money he owes. Failing to repay a medical bill in a timely manner would not land him in prison.
The law also states that debt collectors are not allowed to harass debtors. They are not permitted to call in the early hours of the morning and call repeatedly. Billy can actually order collectors to stop contacting him.
Next, as his account/medical debt had already been sold to collections, he should contact the collection agency to work out payment arrangements. If he is unable to pay the debt in full, some collection agencies may offer a settlement amount. Once he has paid off the account, the collection agency will notify the credit reporting companies it reports to that the account should be updated to note it has been paid in full. He should check to see how his account is appearing by ordering a copy of his report from each of the three credit reporting agencies.
After all these, Billy should then work on rebuilding his credit score.
Step-by-step explanation:
Which of these functions has the same graph but shifted to the left?
Step-by-step explanation:
the second and the 6th options keep the same graph but shift it to the left.
the other options :
the first option changes the graph (the factor -2 stretched and flips the graph).
the third and the 5th options shift the graph up and down. but not to the left.
the 4th option shifts it to the right.
when you add a constant inside the x terms, you shift to the left.
when you subtract a constant inside the x terms, you shift to the right.
e.g. when having f(x+2), then everything, that should happen at x+2 happens already at x. 2 units earlier, and therefore a shift to the left.
in the other direction, f(x-2) makes everything that should have happened at x-2 happen finally at x. so, everything shifts 2 units to the right.
Fin the area of the polygons
Answer:45
Step-by-step explanation:
First, you need to calculate the area of the square.
(LxW)= 25.
Then, calculate the area of the triangle
(1/2BH)=5x(8/2)=5x4=20
Now, just add 20+25= 45
Please mark me brainliest :)
How many minutes did Todd use in October
Answer:
100 minutes cost Todd $24. He had extra bill of 26.38 - 24 = $2.38
$2.38 = 238 cents
7 cents billed for 1 extra minute
1 cents billed for 1/7 extra minute
238 cents billed for 238/7 = 34 extra minutes
total minutes = 134 minutes
Select all the expressions that are equivalent to 6x + 1 - (3x - 1)
Write the coordinate pair (x,y) for each of the following
y=7x
y= 9x²
At how many points in the xy-plane do the graphs of the given equations intersect?
Answer:
2
Step-by-step explanation:
A line and a parabola will intersect at one point if and only if that point is a point of tangency.
__
Here, we know there is one point of intersection at x=0, but the line has a slope of 7, not 0. It is not a tangent to the parabola, so there must bet two points of intersection.
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
C
Step-by-step explanation:
Since the denominators are the same, you just need to add 3 + 1. This gives you 4, combining with the denominator, will give you 4/4, which equals 1.