Answer:
8
Step-by-step explanation:
4.5x+10<=50
4.5x<=50-10
4.5x<=40
x<=8.9
round down because can't go beyond 50
x=8 max
Answer:
8 cups
Step-by-step explanation:
The equation is:
Let [tex]c[/tex] be amount of cups she can buy.
[tex]10+4.5c=50[/tex]
Using this equation, we get:
[tex]10+4.5c=50[/tex]
Subtract 10 from both sides
[tex]4.5c=40[/tex]
Divide both sides by 4.5
[tex]c[/tex] ≈ [tex]8.89[/tex]
Since she can only buy whole cups, the max she can buy is 8 cups.
A producer of electronic book readers is performing a quality check to ensure the reader's backlight is working correctly. The plant manager tests 2,000 readers on Monday and finds that 8 have defective backlights. The fraction StartFraction 1 over x EndFraction is the experimental probability of a book reader having a defective backlight. What is the value of x?
Answer: 25
Step-by-step explanation:
From the question, we are told that a producer of electronic book readers is performing a quality check to make sure that the reader's backlight is working correctly. Then, the plant manager tests 2,000 readers on Monday and finds that 8 have defective backlights. The fraction 1/x is the experimental probability of a book reader having a defective backlight. What is the value of x?
Number of tested readers= 2000
Defective backlight = 8
Probability of having a defective backlight will be the number of defective backlight divided by the number of readers tested. This will be:
= 8/200
We reduce the nice fraction to its lowest term.
8/200 = 1/25
Therefore x will be 25
Answer:
250
Step-by-step explanation:
two thousand divided by eight = 250
2000/8=250
Is 1,2,3,4 a geometric sequence ?
Jim, Dan and David share some sweets in the ratio 3:2:1. Jim gets 27 sweets. How many sweets are there altogether?
Answer:
54 sweets altogether
Step-by-step explanation:
Jim: 27
Dan:
David:
3:2:1
The amount is divided by 6
27/3=9
Dan— 9*2=18
David— 9*1=9
18+9+27=54
For speed skaters, Marco, Naim, and Pedro, compete in a relay race where they all agree Naim will be the last skater. Then they try to decide whether or not all of her should be the first skater in the race. Which subset, A, Of the sample space shows the complement of the event in which Oliver is the first skater in the race.
Answer:
A = {MOPN, MPON, PMON, POMN}
Step-by-step explanation:
Everybody has already decided that Naim is the last skater, so we need to make sure the result is 'N' in each last position. As we can see all of them have this.
However, we just need to make sure that Oliver doesn't first, because even if they're attempting to decide, the question is calling for the inclusion in which "Oliver is the very first skater in the race."
A complement is all the NOT values in the package or set, so it cannot be either A = {OPMN, OMPN) or A = {MOPN,MPON, OPMN, POMN), since all of them have at minimum one case where 'O' is first.
A complement is ALL other values of the set, and it can not be A = {MOPN, PMON}, since only two possible values are included in that package or set
Answer:
Step-by-step explanation:
Its d yall
PLEASE HELP! IMAGE IS ATTACHED! 10 EXTRA POINTS FOR THIS ONE!
I'm thinking line 2 and 3 are Parallel
Answer:
C. Lines 2 and 4 are perpendicular
Step-by-step explanation:
If you just graph them all, none of them are parallel. But lines 2 and 4 are perpendicular and so are the lines 1 and 3.
Out of the options, C. Lines 2 and 4 are perpendicular, is the only correct answer in the choices given.
can someone please help me
Answer:
Step-by-step explanation:
correct one is b
Simplify the polynomial, then evaluate for x=2. x=3x^2+2x-3-4x^2+6
Answer:
-x^2+3x+3; 5
Step-by-step explanation:
polynomial is -x^2+3x+3
when x=2 then -2^2+3*2+3=-4+6+3=5
The solution is Option B.
The value of the equation is A = -x² + 3x + 3 , and when x = 2 , A = 5
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
A = x + 3x² + 2x - 3 - 4x² + 6 be equation (1)
On simplifying the equation , we get
A = 3x² - 4x² + x + 2x - 3 + 6
A = -x² + 3x + 3
Now , when x = 2
Substitute the value of x = 2 in the equation , we get
A = - ( 2 )² + 3 ( 2 ) + 3
A = -4 + 6 + 3
A = 9 - 4
A = 5
Therefore , the value of A is 5
Hence , the equation is A = -x² + 3x + 3
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Each of these figures is based on a rectangle whose centre is shown.
How many of the figures have rotational symmetry of order two?
The last 2 shapes.
When you rotate both of them 360 degrees only at 180 and back at 360 it looks same.
A. One player places 1 red, 5 green and 3 blue tiles in Bag A, and 6 red, 4 green, and 2 blue in Bag B. What is the probability that the second player draws 2 tiles of the same color?
Answer:
[tex]\frac{8}{27}[/tex] is the probability that a player draws out two tiles of the same color assuming they are drawing one tile from each bag.
Step-by-step explanation:
In each bag there are red, green, and blue tiles, meaning that no matter which color is pulled out first there is always some probability that the second tile will be the same color. So, we can set up three possible outcomes:
Red: The player pulls out a red tile first. This has a [tex]\frac{1}{9}[/tex] probability of happening. Then in order to succeed for the problem, the next tile also needs to be red which has a [tex]\frac{6}{12}[/tex] probability attached to it. [tex]\frac{1}{9}[/tex] × [tex]\frac{6}{12}[/tex]=[tex]\frac{1}{18}[/tex] probability of happening.
Green: There is a [tex]\frac{5}{9}[/tex] probability of the player pulling out a green tile first. In this case we want to calculate the probability of the second tile being green, which would be [tex]\frac{4}{12}[/tex]. [tex]\frac{5}{9}[/tex]×[tex]\frac{4}{12}[/tex]=[tex]\frac{5}{27}[/tex].
Blue: There is a [tex]\frac{3}{9}[/tex] probability of the first tile being blue in which case we are hoping for the second tile to be blue as well. The probability of the second tile being blue is [tex]\frac{2}{12}[/tex] on its own, and them both being blue is [tex]\frac{3}{9}[/tex]×[tex]\frac{2}{12}[/tex]=[tex]\frac{1}{18}[/tex]
Adding [tex]\frac{1}{18}[/tex]+[tex]\frac{1}{18}[/tex]+[tex]\frac{5}{27}[/tex] we get the answer [tex]\frac{8}{27}[/tex].
find the value of sin (31π/3)
Answer:
[tex] \sin( \frac{31\pi}{3} ) [/tex]
= 0.537
Answer:
√3/2
Step-by-step explanation:
sin((31π/3)= sin( 10π + π/3)= sin(π/3) =√3/2
The price of a bracelet is $1.29. If the tax rate is 5%, find the total cost of
the bracelet
Answer: $1.35
Step-by-step explanation:
1.29 * 5% = 1.29 * 0.05 = 0.0645
0.0645 rounds down to 0.06
1.29 + 0.06 = 1.35
PLS HELP I AM STUCK!!! 10+7^2-14+1
Answer:
46
Step-by-step explanation:
=> [tex]10+7^2-14+1[/tex]
=> 10+49-14+1
=> 59-14+1
=> 45+1
=> 46
Answer:
46
Step-by-step explanation:
10+7^2-14+1
10+49-14+1
59-14+1
45+1
46
I'm taking a class in FLVS I finished segment 1 and I need to add another course for segment 2 and I don't know how to do that? Please help
Answer:
You could simply go to your course selection book (if there is one) and see if it's there. If not, then ask your guidance counselor for help or if you can automatically advance.
Step-by-step explanation:
What is the range of f(x)?
-3-2, -1, 0.1
-2 -1 0.1
all real numbers such that -3
all real numbers such that -2
Answer:
.........................?
A company makes 140 bags.
47 of the bags have buttons but no zips.
48 of the bags have zips but no buttons.
22 of the bags have neither zips nor buttons.
A bag is selected at random.
What is the probability that the bag has buttons
Answer: 0.5
Step-by-step explanation:
Total bags (U) = 140
Number of bags with both button and zip:
(48 + 47 + x + 22) = 140
117 + x = 140
x = 140 - 117
x = 23
Therefore, probability that bag has button :
Total Number of bags with button:
(Bags with button alone + bags with both button and zip)
(47 + 23) = 70
Probability = (required outcome / Total possible outcomes)
P(bag has button) = (number of bags with button / total number of bags)
P(bag has button) = 70/140 = 0.5
P(bag has button) = 0.5
Mr. Scott uses an 8 GB flash drive to store his files for his classroom. His principal buys him a new 64 GB flash drive. What is the percent of increase in memory?
Answer:
12.5%
Step-by-step explanation:
8 / 64*100 =
(8 * 100) / 64 =
800 / 64 = 12.5
Hope this helped buddy! :D
Answer:
total memory = 8 GB + 64 GB
= 72 GB
extra memory = 64 GB
so percentage increase of memory
= ( 64 GB / 72 GB ) × 100
= 88.89 %
A ball is thrown into the air with an upward velocity of 36 ft/s. Its height h in feet after t seconds is given by the function h = –16t^2 + 36t + 10. a. In how many seconds does the ball reach its maximum height? Round to the nearest hundredth if necessary. b. What is the ball’s maximum height?
Step-by-step explanation:
We have,
A ball is thrown into the air with an upward velocity of 36 ft/s. Its height h in feet after t seconds is given by the function :
[tex]h=-16t^2 + 36t + 10[/tex] ......(1)
Part (a) :
The maximum height reached by the ball is given by :
[tex]\dfrac{dh}{dt}=0\\\\\dfrac{d(-16t^2 + 36t + 10)}{dt}=0\\\\-32t+36=0\\\\t=\dfrac{36}{32}\\\\t=1.125\ s[/tex]
Part (b) :
The maximum height of the ball is calculated by putting t = 1.125 in equation (1) such that :
[tex]h=-16(1.125)^2 + 36(1.125)+ 10\\\\h=30.25\ m[/tex]
If F(a, b, c, d) = a^b + c \times d, what is the value of x such that F(2, x, 4, 11) = 300?
Answer:
x = 8
Step-by-step explanation:
A graphing calculator can show you the answer easily. It works well to define a function whose x-intercept is the solution. We can do that by subtracting 300 from the given equation so we have ...
F(2, x, 4, 11) -300 = 0
The solution is x = 8.
__
We can solve this algebraically:
F(2, x, 4, 11) -300 = 0
2^x +4·11 -300 = 0 . . . . use the function definition
2^x -256 = 0 . . . . . . simplify
2^x = 2^8 . . . . . add 256
x = 8 . . . . . . . . . match exponents of the same base
PLZZZZZZZZ HLPPPPPPPPPPPPP MEEEEEEEEEEEEE
Answer:
(x1,y1)=(−2,2)
(x2,y2)=(0,−2)
Use the slope formula:
m= y2−y1 /x2−x1
= −2−2 /0−−2
= −4 /2
=−2
Answer:
m=−2 This is the slope
So,the slope intercept form for 2 points is y-y1=m(x-x1) m=slope
y-y1=m(x=x1)
y-2=-2(x-(-2) ( - and - is +) So,the final equation is:
y-2=-2(x+2)
I hope this help you :)
+
Complete the fraction calculation below
3/8 + 1/6
Answer:
[tex]\frac{13}{24}[/tex]
Step-by-step explanation:
=> [tex]\frac{3}{8} +\frac{1}{6}[/tex]
LCM = 24
=> [tex]\frac{9+4}{24}[/tex]
=> [tex]\frac{13}{24}[/tex]
Answer:
[tex]\frac{13}{24}[/tex]
Step-by-step explanation:
[tex]\frac{3}{8} +\frac{1}{6}[/tex]
[tex]\frac{3 \times 6}{8\times 6} +\frac{1\times8}{6\times8}[/tex]
[tex]\frac{18}{48} +\frac{8}{48}[/tex]
[tex]\frac{18+8}{48}[/tex]
[tex]\frac{26}{48}[/tex]
[tex]\frac{13}{24}=0.54166...[/tex]
A rectangle with perimeter 18 cm has a length that is 3 cm more than twice its width. Find the dimensions of the rectangle. SOLVE EACH APPLICATION USING ALGEBRA. TYPE THE EQUATION OR INEQUALITY AND PLEASE SHOW WORK.
Answer:
Length = 7 cm
Width = 2 cm
Step-by-step explanation:
Perimeter of rectangle = 18 cm
Let length of rectangle = [tex]l[/tex] cm
Let width of rectangle = [tex]w[/tex] cm
As per given statement, length is 3 cm more than the twice of its width:
Writing equation:
[tex]l = 2\times w +3 ....... (1)[/tex]
Formula for perimeter of a rectangle is given as:
[tex]P = 2 \times (Length + Width)[/tex]
OR
[tex]P = 2 \times (l + w)[/tex]
Putting values of P as given and [tex]l[/tex] by using equation (1):
[tex]18 = 2 \times (2w +3 + w)\\\Rightarrow \dfrac{18}2 = 3w +3 \\\Rightarrow 9 = 3w +3\\\Rightarrow 3w = 9 -3\\\Rightarrow w = \dfrac{6}{3}\\\Rightarrow w = 2\ cm[/tex]
Putting value of [tex]w[/tex] in equation (1):
[tex]l = 2\times 2 +3 \\\Rightarrow l = 4+3\\\Rightarrow l = 7\ cm[/tex]
So, the dimensions are:
Length = 7 cm
Width = 2 cm
WORTH 10 POINTS
can someone help me solve this question? Thank you.
Answer:
-10
Step-by-step explanation:
Variable k is denoted as vertical movement. In this case, the -10 is k. Therefore, the graph is moving 10 units down from the parent graph.
answer and u will get branliest
Answer:
x = 360° - 132° - 54° - 90°
x = 84°
Step-by-step explanation:
total degree of a cirlce is 360°
Answer:
[tex]84 \: \: degrees[/tex]
Step-by-step explanation:
[tex]90 + 132 + 54 + x = 360 \\ 276 + x = 360 \\ x = 360 - 276 \\ x = 84 \: \: degrees[/tex]
What is the first step when constructing an angle bisector using only a compass and a straightedge? A. Place the compass needle on one of the legs of the angle, and draw an arc intersecting the other leg. B. Mark a point outside the angle, and draw an arc centered at the point, intersecting the vertex of the angle. C. Mark a point outside the angle, and draw a ray in any direction from the point. D. Place the compass needle on the vertex of the angle, and draw an arc across both legs of the angle. E. Mark a point in the angle's interior, and draw an arc centered at the point, intersecting both legs of the angle.
Answer:
d
Step-by-step explanation:
To construct an angle bisector with a compass D. Place the compass needle on the vertex of the angle, and draw an arc across both legs of the angle.
What is an angle bisector ?An angle bisector is a line segment that divides angle into two equal parts.
According to the given statements to construct an angle bisector using a compass span any width of radius in a compass pace in onto the vertex of the angle cut the two arc on the two lines then without changing the radius draw two arcs where the previous arcs have intersected the two lines.
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Which equations can be used to find the lengths of the
legs of the triangle? Select three options.
+
0 0.5(x)(x + 2) = 24
Ox(x + 2) = 24
O x2 + 2x – 24 = 0
O x2 + 2x - 48 = 0
0x2 + (x + 2)2 = 100
Answer:
0.5(x)(x + 2) = 24 (A)
x² + 2x – 48 = 0 (D)
x² + (x + 2)² = 100 (E)
Question:
A question related to this found at brainly (ID:4482275) is stated below.
The area of the right triangle shown is 24 square feet. Which equations can be used to find the lengths of the legs of the triangle? Check all that apply.
0.5(x)(x + 2) = 24
x(x + 2) = 24
x2 + 2x – 24 = 0
x2 + 2x – 48 = 0
x2 + (x + 2)2 = 24
Step-by-step explanation:
Find attached the diagram.
Area of triangle = ½ × base × height
= 0.5×b×h
base= x ft
Height = (x+2) ft
Area = 24ft²
24 = 0.5(x)(x+2)
0.5(x)(x + 2) = 24 (A)
The equations that can be used to find the lengths of the legs of the triangle must be equivalent to 0.5(x)(x + 2) = 24
On expanding this: 0.5(x)(x + 2) = 24
0.5(x²+2x) = 24
b) x(x + 2) = 24
x(x + 2) is not equal to 0.5(x²+2x)
c) x² + 2x – 24 = 0
0.5(x²+2x) = 24
0.5x²+x - 24 = 0 is not equal to x²+2x- 24 = 0
d) x² + 2x – 48 = 0
0.5(x)(x + 2) = 24
½(x)(x + 2) = 24
x² + 2x = 2(24)
x² + 2x – 48 = 0
Correct option (D)
x² + (x + 2)² = 100
x² + x² + 4x + 4 = 100
2x² + 4x = 96
2(x² + 2x +48)= 0
x² + 2x +48 = 0 is equal to 0.5(x²+2x) = 24
Correct (E)
Answer:
A, D, E
Step-by-step explanation:
Your bowling ball weighs 14 14 pounds. How much does it weigh in ounces? CLEAR CHECK 0.875 0 . 875 ounces 112 112 ounces 140 140 ounces 224 224 ounces
Answer:
224 ounces.
Step-by-step explanation:
There are 16 ounces in a pound. Since the bowling ball weighs 14 pounds, we need to multiply it by 16 to get the weight in ounces.
14 * 16 = 224
The bowling ball should weigh 224 oz.
100 points!!! Please full out all of these ASAP!!! Please show work!!!
Answer:
look below
Step-by-step explanation:
y = 2 (x + 3)^2 - 2
Geometric figure: parabola
Alternate forms:
y = 2 (x + 2) (x + 4)
y = 2 (x^2 + 6 x + 8)
-2 x^2 - 12 x + y - 16 = 0
Expanded form:
y = 2 x^2 + 12 x + 16
Roots:
x = -4
x = -2
Properties as a real function:
Domain - R (all real numbers)
Range - {y element R : y>=-2}
Partial derivatives:
d/dx(2 (x + 3)^2 - 2) = 4 (x + 3)
d/dy(2 (x + 3)^2 - 2) = 0
Implicit derivatives:
(dx(y))/(dy) = 1/(12 + 4 x)
(dy(x))/(dx) = 4 (3 + x)
Global minimum:
min{2 (x + 3)^2 - 2} = -2 at x = -3
Answer:
hi
Step-by-step explanation:
A point Q is 24 km away and at a bearing of 072 degrees from P. From Q a man walks at a bearing of 320 degrees, to a point R, located directly north of P. Calculate the distance of PR and QR.
Answer:
RQ=35.51 km
PR=34.62 km
Step-by-step explanation:
Bearing of Q from P = 72 degrees
The complementary angle of 72 degrees is 18 degrees.Using alternate angles, we get the first angle at Q to be 18 degrees.Bearing of R from Q=320 degrees
320=270+50
Therefore, the second angle of Q is 50 degrees.
[tex]\angle P=72^\circ\\\angle Q=68^\circ\\\angle R=180^\circ-(72^\circ+68^\circ)=40^\circ[/tex]
Using Law of Sines
[tex]\dfrac{r}{\sin R} =\dfrac{p}{\sin P} \\\dfrac{24}{\sin 40} =\dfrac{p}{\sin 72} \\p=\sin 72 \times \dfrac{24}{\sin 40}\\\\p=RQ=35.51$ km[/tex]
Using Law of Sines
[tex]\dfrac{q}{\sin Q} =\dfrac{r}{\sin R} \\\dfrac{q}{\sin 68} =\dfrac{24}{\sin 40} \\q=\dfrac{24}{\sin 40}\times \sin 68\\\\q=PR=34.62$ km[/tex]
Choose the best answer from the four choices given. You may use scratch
paper.
Which of the following equations has both 1 and -3 as solutions?
O x2 - 2x -3 =0
x² + 2X-3 =0
O x2 - 4x +3 =0
O x2 + 4x +3 =0
Answer:
The answer is B.
Step-by-step explanation:
Instead of solving each equation, simply think about it alternatively.
Recall that quadratic equations can also be written as: [tex](x-a)(x-b)[/tex], where [tex]a[/tex] and [tex]b[/tex] are the solutions.
We know that 1 and -3 are solutions, so we can substitute them in for [tex]a[/tex] and [tex]b[/tex].
Thus, we have:
[tex](x-(1))(x-(-3))[/tex]
[tex](x-1)(x+3)[/tex]
Now, expand:
[tex]x^2+3x-x-3[/tex]
[tex]x^2+2x-3[/tex]
The answer is B.
Which of the following is the shape of a cross-section of the figure shown below?
Answer:
B. Pentagon
Step-by-step explanation:
A cross-section is basically the 2D figure created by slicing through a 3D shape.
Take a look at this figure: it's a pentagonal prism. One note to remember is that for all prisms, their cross-sectional shapes are the same shapes as the shape of their bases.
Here, the two bases are pentagons, so we know the cross-section will be a pentagon.
Thus, the answer is B.
~ an aesthetics lover