Find the difference: 28y − 16y
A.
12y
B.
10y
C.
-44y
D.
-12y
Answer:
A. [tex]12y[/tex]
Step-by-step explanation:
Subtract like normal 28 - 16 = 12
so then it's 12y
PQR is a triangle. PR= 23cm, PQ= 22cm and angle QPR= 48 degrees. Calculate length of QR.
Answer:
The length of QR is approximately 18.3 cm
Step-by-step explanation:
The given parameters are;
The length of the side PR = 23 cm
The length of the side PQ = 22 cm
The measure of the angle QPR = 48°
By cosine rule, we have;
[tex]\overline{QR}^2 = \overline{PR}^2 + \overline{PQ}^2 - 2 \times \overline{PR} \times \overline{PQ} \times cos(\angle QPR)[/tex]
Plugging in the values gives;
[tex]\overline{QR}^2 = 23^2 + 22^2 - 2 \times 23 \times 22\times cos(48^{\circ}) \approx 335.84[/tex]
[tex]\therefore \overline{QR} \approx \sqrt{335.84} \approx 18.3[/tex]
The length of QR ≈ 18.3 cm
The result of the expression 8 * 5 ** 0 is *
a. 8
b. 1
c. 0
d. 40
Please help with work shown (only if possible)
Answer:
The cylindrical one
Step-by-step explanation:
We know that the container does not have anything inside it, and we only want the surface, so we will figure out the surface area. The less surface area the package has, the less plastic is used.
The surface area for a cylinder is 2πrh +2πr². Plugging 5 in for r (the radius) and 19 in for the height, we get
2π(5)(19) + 2π(5)² = 753.98
The surface area for a rectangular prism is 2(wl + hl +hw), with 10 being the width, 12 being the length, and 19 being the height in this example, resulting in
2(10*12 + 19 * 12 + 10 * 19) = 1076
The surface area for the cylinder will clearly have less surface area/plastic
Given mlln, find the value of x.
(x+27)
(2x-7)
Answer:
x=34
Step-by-step explanation:
The angles are corresponding angles so they are equal if m is parallel to n
x+27 = 2x -7
Subtract x from each side
x+27 -x =2x-x-7
27 = x-7
Add 7 to each side
27+7 = x-7+7
34 =x
Mike and Sarah are packing boxes at a factory. Mike packs 30 boxes each hour. Sarah packs 15 boxes each hour. How many boxes will each person have packed after an 8 hour shift?
Answer:
Mike= 240 boxes
Sarah= 120 boxes
Step-by-step explanation:
Mike and Sarah are packing boxes at a company
Mike packs 30 boxes each hour, after an 8 hour shift the number of boxes he will pack is
= 30×8
= 240
Sarah packs 15 boxes each hour, afterr an 8 hour shift the number of boxes she will pack is
= 15×8
= 120
Hence after the 8 hours shift Mike will pack 240 boxes while Sarah will pack 120 boxes
Find the perimeter of a field with the following dimensions: Length: x² + 3x - 1 Width: 2x + 3
Answer:
B. 2x²+10x+4
Step-by-step explanation:
the perimeter =
2×(x²+3x-1+2x+3)
= 2×(x²+5x+2)
= 2x²+10x+4
State the amplitude and period of f(x) = 3cos9/5t
Answer:
The amplitude is 3 and the period is 10π/9.
Step-by-step explanation:
The standard cosine function is in the form:
[tex]y=a\cos(b(x-c))+d[/tex]
Where |a| is the amplitude, 2π/b is the period, c is the phase shift, and d is the vertical shift.
We have the function:
[tex]f(x)=\displaystyle 3\cos\frac{9}{5}t[/tex]
We can rewrite this as:
[tex]\displaystyle f(x)=(3)\cos\left(\frac{9}{5}\left(t-0\right)\right)-(0)[/tex]
Therefore, a = 3, b = 9/5, c = 0, and d = 0.
Hence, our amplitude is |3| = 3.
Our period will be:
[tex]\displaystyle \text{Period}=\frac{2\pi}{9/5}=2\pi \cdot \frac{5}{9}=\frac{10\pi}{9}[/tex]
sorry but I need help AGAIN so sorry but help me plz
Answer:hfhfhfh
Step-by-step explanation:
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50 point HELP ASAP Question: A rectangle has sides measuring (3x + 8) units and (6x + 5) units.
Part A: What is the expression that represents the area of the rectangle? Show your work to receive full credit.
Part B: What are the degree and classification of the expression obtained in Part A?
Part C: How does Part A demonstrate the closure property for polynomials?
Answer:
see below
Step-by-step explanation:
(3x + 8) units by (6x + 5) units.
A = l*w
= (3x+8)(6x+5)
Distribute
3x*(6x+5) + 8(6x+5)
18x^2 +15x + 48x +40
Combine terms
18x^2+63x+40 units^2
The degree is 2 ( the highest power of x)
This is a trinomial ( it has 3 terms)
Multiplication is closed for polynomial multiplication
We started with polynomials and we ended up with a polynomial.
On a grocery store shelf, there are 16 loaves of white bread and 24 loaves of wheat bread. A shopper randomly selects a loaf of bread.
What is the PROBABILITY it is WHEAT
Round to the NEAREST PERCENT!
Answer:
60%
Step-by-step explanation:
16 loaves of white bread and 24 loaves of wheat bread. = 40 loaves of bread
P( wheat) = number of wheat/ total
= 24/40
=.6
=60%
What is the determinant of k=[6 8]
[0 3]
-18
-8
10
18
SATELLITE DISH Suppose the receiver in a parabolic dish antenna is 2 feet
from the vertex and is located at the focus. Assume that the vertex is at the
origin and that the dish is pointed upward. Find an equation that models a
cross section of the dish.
a. x2 = -8y
b. x2 = 2y
c. x2 = 8y
d. y2 = 8x
Answer:
D) [tex]x^{2} =8y[/tex]
Step-by-step explanation:
Because the receiver of the parabolic dish antenna is 2 feet above the vertex, the parabola must be vertical. Therefore, we will use the equation [tex](x-h)^2=4p(y-k)[/tex] where [tex](h,k)[/tex] is the vertex of the parabola and [tex](h,k+p)[/tex] is the focus point. Since we are given that the receiver is 2 feet above the vertex which is located at the focus point and the vertex is [tex](0,0)[/tex] at the origin, then the focus point is [tex](0,0+p)[/tex] where [tex]p=2[/tex]. Therefore, the equation that models a cross section of the dish is [tex]x^{2} = 8y[/tex].
What is the amplitude of this function f (x)?
f(x) = 3 cos (2x) + 5
Enter your answer in the box.
The amplitude of this function is 3.
What is the slope intercept form here!!!
Answer:
y=x
Step-by-step explanation:
How many teams haven't apperared in a super bowl
A. 2
B. 5
C.4
D. None
Answer:
c. 4
Step-by-step explanation:
I'm correct if I'm rwong
A loaf of bread costs $0.90. Each loaf has 15 slices. How much does each slice of bread cost?
Answer:
Each slice of bread costs $0.06.
Step-by-step explanation:
To find how much each slice of bread costs, you need to divide the cost (0.90) by how many slices there are (15). When you divide the two, you get 0.06. To check your answer you can do 0.06x15 and that will equal $0.90.
Answer:
0.9/15=$0.06 per slice
Also what is this 1910 when did a loaf of bread cost 90 cents????
The rectangles below are similar. Find the length of the missing side (giving brainliest and thanks to all!)
Answer:
A = 68/5 ≈ 13.6
Step-by-step explanation:
If they're similar, the fraction between their sides have to be the same:
5/2 = 34/A
34•2/5 = A
A = 68/5 ≈ 13.6
A community group sells 2,000 tickets for its raffle. The grand prize is a car. Neil and 9 of his friends buy 10 tickets each. When the winning ticket number is announced, it is found to belong to Neil's group. Given this information, what is the probability that the ticket belongs to Neil?
Answer:
1/10 if its is in the group
Step-by-step explanation:
but if its as the whole thing it would be 1/200 because he has 10 and 10 of 2000 is 1/200
The probability that the winning ticket belongs to Neil is 5%.
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
There are a total of 2,000 tickets, and Neil and his 9 friends bought 10 tickets each, so they bought a total of 100 tickets (10 tickets/person x 10 people = 100 tickets).
The probability of Neil's group winning the car is equal to the number of tickets they bought divided by the total number of tickets sold:
Probability = Number of tickets bought by Neil's group / Total number of tickets sold
Probability = 100 / 2000
Probability = 0.05 or 5%
Therefore, the probability that the winning ticket belongs to Neil is 5%.
To learn more on probability click:
https://brainly.com/question/11234923
#SPJ5
what is 0.975 as a common fraction
Volume How many fluid ounces are in each size?
1 cup = 8 oz. 1pint = 2 cups. 1 quart = 2 pints. 1 gallon = 4 quart
1 Pint = ________fl oz
Answer:
Answer:
Step-by-step explanation:
What is the slope of a line parallel to the line whose equation is
x + 2y = 10. Fully simplify your answer.
Answer:
The required slope is equal to -1/2.
Step-by-step explanation:
The given equation of line is :
x + 2y = 10
A line parallel to this line has the same slope. To determine the slope, solve for y to change the equation to slope-intercept form:
y = mx+b .....(1)
2y = 10 -x
Dividing both sides by 2.
[tex]y=(-\dfrac{1}{2})x+10[/tex] ....(2)
Comparing equations (1) and (2),
m = -1/2
Hence, the required slope is equal to -1/2.
evaluate 25C22-24C21
Answer:
276
Step-by-step explanation:
25!/22!(25-22)! - 24!/21!(24-21)!
= 2300 - 2024
= 276
two hot airballoons are travelingalong the samepath away from town beginningfrom difrant locationsat the same time henery's balloon begins 15 miles from the town and is 31 miles from the town after 2 hours. the distanceof tasha'sballoon from the town is represented by the function y=5x+25
witch ball on was farther from the town at the beginning and which traveled more quickly?
A. tasha's balloon was further from the town at the beginning and it traveled more quickly.
B. Henry's balloon was further from the town at the beginning and it traveled more quickly.
C. Henry's balloon was further from the town at the beginning but tasha's balloon traveled more quickly
D. tasha's balloon was further from the town at the beginning but henery's balloon traveled more quickly
Answer: I think it is B
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
tasha's ballon speed=5 mph
henrey's balloon speed=(31-15)/2=16/2=8 mph
tasha's initial distance was y=5×0+25 =25 miles
Henrey's balloon initial distance=15 miles
Help me solve this equation. Find f(x)-g(x)
Answer:
- 2x³
Step-by-step explanation:
f(x) - g(x)
= [tex]x^{\frac{1}{2} }[/tex] - x - (2x³ - [tex]x^{\frac{1}{2} }[/tex] - x) ← distribute parenthesis by - 1
= [tex]x^{\frac{1}{2} }[/tex] - x - 2x³ + [tex]x^{\frac{1}{2} }[/tex] + x ← collect like terms )
= - 2x³
please help me ill give you 10 points
15/x=10/2
Find x please
Answer:
x=3
Step-by-step explanation:
15/x=10/2
Simplifying the right side
15/x = 5
Multiply each side by x
15/x *x = 5x
15 = 5x
Divide each side by 5
15/5 = 5x/5
3 =x
The measure of 1 in the diagram below is 113º.
What is the measure of <4?
pls help me ! i rlly need it !
Answer:
surface area= 528 volume =480
Step-by-step explanation:
62.4g of sugar is needed to make 8 cakes. How much sugar is needed for 9 cakes?
Answer:
7.8 for 1 cake so add that to your total
Step-by-step explanation:
