Answer: 7410 watches
Step-by-step explanation:
From the random sample of 250 watches, 3 are defective. The percentage that's defective will be:
= 3/250 × 100
= 1.2%
Percentage that's not defective = 100 - 1.2 = 98.8%
Therefore, from the sample of 7500 watches, the number that's not defective will be:
= 98.8% of 7500
= 98.8/100 × 7500
= 7410
Therefore, 7410 watches aren't defective
Hi there, please help:)
Answer:
1/5
Step-by-step explanation:
go up one unit from point (0,1) then go 5 units to the right until you reach point (5,2)
slope = - 2/5; y-intercept = 0
HELP!!!!!!!!!!!
Answer:
To form the equation, it would y = -2/5x
Step-by-step explanation:
Manuel earns $7.25 per hour helping his neighbor. Last month he earned $348. Choose the correct equation and solution which determines the number of hours, h, Manuel worked.
Answer:
7.25h=348
Step-by-step explanation:
6. Select the expression that is equivalent to 24 + 64x
. A 8(3 + 8x)
B (8.3) + (8.x)
C 4(6 + 8x)
D 4(6 + x)
Answer:
A
Step-by-step explanation:
A. 8(3+8x)
8 times 3 is 24. 8 times 8 is 64 making it 24+64x
If (x - 2)2 + 5(x - 2) = -6, which of the following could be the value of x - 2?
A
-1
B
-3
C
-4
D
-5
Answer: A. -1
Step-by-step explanation:
(x - 2)2 + 5(x - 2) = -6
2x-4 + 5x -10= -6
Combine like terms
7x-14=-6
Add 14 to both sides
7x=8
Divide
X= 8/7 or 1.14 (rounded)
1.14 - 2= -0.86 which can be rounded to -1
IM NOT SMART SUBSTITUTION METHOD AGAIN
Answer:
x = 6
y = -3
Step-by-step explanation:
15x + 31y = -3
we are given that x =( - y + 3 )
so in the equation 15x + 31y = -3 we substitute "x" for ( -y + 3 ) and we solve for y
so 15 ( -y + 3 ) + 31y = -3
now we use basic algebra to solve for y
step 1 distribute the 15
15 * -y = -15y
15 * 3 = 45
now we have 45 - 15y + 31y = -3
step 2 combine like terms
-15 + 31y = 16y
now we have 45 + 16y = -3
step 3 subtract 45 from each side
-3 - 45 = -48
45 - 45 cancels out
now we have 16y = -48
step 4 divide each side by 16
16y/16=y
-48/16=-3
we're left with y = -3
Now to find x we substitute -3 for y in x = -y + 3
* substitute *
x = - ( -3) + 3
the two negative signs cancel out and we get x = 3 + 3
3 + 3 = 6
we're left with x = 6
25 POINTS GUYS PLEASE HELP ME WITH THIS QUESTION
WHAT IS 1+1
Answer:
2
Step-by-step explanation:
1 + 1 = 2
Answer:
the answer is 2
Step-by-step explanation:
1+1=2
PLEASE HELP !!!!!!!! What is the equation of the directrix for the following parabola: -8(x-5)=(y+1)^2
a. y=-3
b. x=7
c. y=7
d. x=-3
Answer:
x=7
Step-by-step explanation:
The directrix of the equation is x=7
What is directrix of parabola?The directrix of a parabola is a line that is perpendicular to the axis of the parabola. The directrix of the parabola helps in defining the parabola. A parabola represents the locus of a point which is equidistant from a fixed point called the focus and the fixed line called the directrix. The directrix and the focus are equidistant from the vertex of the parabola. Here we define the directrix for the standard equations of a parabola.
The directrix of the parabola y^2 = 4ax, having x-axis as its axis, passes through (-a, 0), and has the equation x + a = 0.The directrix of the parabola y^2 = -4ax, having x-axis, passes through (a, 0), and has the equation x - a = 0.The directrix of the parabola x^2 = 4ay, having y-axis as its axis, passes through (0, -a), and has the equation y + a = 0.The focus of the parabola x^2 = -4ay, having y-axis as its axis, passes through (0, a), and has the equation y - a = 0.Given:
-8(x-5)=(y+1)²
Now, using the definition of directrix
x= 8/4 +5
x= 2+ 5
x= 7
Learn more about directrix here:
https://brainly.com/question/17376399
#SPJ2
How do I solve this arithmetic sequence?
Answer:
The 16ᵗʰ term of this sequence is 82
Step-by-step explanation:
Here,
First Term = a₁ = 9
Common Difference = (d) = 2
Now, For 16ᵗʰ term, n = 16
aₙ = a + (n - 1)d
a₁₆ = 7 + (16 - 1) × 2
a₁₆ = 7 + 15 × 5
a₁₆ = 7 + 75
a₁₆ = 82
Thus, The 16ᵗʰ term of this sequence is 82
-TheUnknownScientist
The Americans with disabilities act sets a maximum angle for a wheelchair ramp entering a business at 4.76 degrees. Determine the horizontal distance needed to accommodate a ramp that goes up to a door.
Answer:
Step-by-step explanation:
tanα=h/d, where α=angle of elevation, h=height, d=horizontal distance.
d=h/tanα, we are given that h=4ft and α=4.76° so
d=4/tan4.76° ft
d≈48.04 ft (to nearest hundredth of a foot)
Select the three ratios that represent the numbers of blue marbles to red marbles, there are 6 blue marbles and 9 red marbles
Answer:
6:9 or (2:3)
Step-by-step explanation:
A ratio is a term that gives comparison of values. It helps to determine
how much of a particular thing that is compare to other thing.
Given:
numbers of blue marbles= 6
numbers of red marbles= 9
Hence, ratios that represent the numbers of blue marbles to red = 6:9
We can reduce it using factor of 3, hence the ratio becomes(2:3)
find the solution to the system of equations.
the diagonals of the rectangle have these equations. y= 4x - 10 y= -4x + 8 find where these lines intersect
hi
if it's intersect, then :
4x-10 = -4x+8
-10-8 = -4x-4x
-18 = -8x
-18/-8 = x
18/8 = x
9*2 /4*2 = X
9/4 = X
So X is 9/4 then y is : 4( 9/4) -10 = 9-10 = -1
Lines intercept at ( 9/4 ; -1)
Lisa got a $50 gift card to an online music store. She uses the gift card to buy an album for $10. She also wants to use the gift card to buy some individual songs. Each song costs $1.50.
Which of these inequalities describes the situation for the total amount that Lisa can spend, where n is the number of songs Lisa wants to buy?
Group of answer choices
10 - 1.50n ≤ 50
10 + 1.50n ≥ 50
10 - 1.50n ≥ 50
10 + 1.50n ≤ 50
Answer:
The fourth answer choice: 10 + 1.50n < 50
I would appreciate Brainliest but no worries.
a baker made 192 trays of muffins. they were 14 muffins in each tray. how many muffins were there in all?
HELP PLEASE 12 POINTS
Answer:
b. 4m
Step-by-step explanation:
congruent polygons means same shape, size, angles, and sides.
What is the rate in cups of lime juice per cup of Greek yogurt
Answer:
2/5 is the rate in cups of lime juice
Answer:
2/5 is the rate in cups of lime juice
Step-by-step explanation:
yes
"They kept on talking and kept on ooohing and aahing and Grandma Sands kept on interrupting breakfast..." is an example of... *
personification
allusion
metaphor
onomatopoeia
Answer:
onomatopoeia
Step-by-step explanation Onomatopia is when the author uses sounds in their writing. In this case ooohing and ahhing were the sounds.
Can someone please help me
Answer:
I think the answer is b
Step-by-step explanation:
Answer:
C I think
Step-by-step explanation:
What C is essentially saying is that if the lines l and m intersect and form two angles next to each other that are equal then they will be 90 degrees
this is true because if two lines intersect they will form 4 angles and since vertical angles are equal the only way for adjacent angles to be equal is for everything to be 90 degrees which then makes the lines perpendicular
An art dealer makes 17.5% commission on every painting sold. If a painting sold for $1,500, what was the commission?
Answer:
262.5 dollars
Step-by-step explanation:
17.5% of 1500 is 262.5
Answer:
262.50
Step-by-step explanation:
change 17.5% into 0.175 then multiply it by 1,500
what is the area of the figure below?
Answer:
250
Step-by-step explanation:
You have to find the triangle area and the rectangle and then add them.
Rectangle - 10*20 = 200
Triangle - (10*10)/2 = 50
Area - 200 + 50 = 250
PLEASE HELP. NO LINKS. NEED REAL EXPLANATION.
Find the volume of a cone with a height of 8in and a base radius of 3in.
Use the value 3.14 for pi, and do not do any rounding. Be sure to include the correct unit in your answer.
Answer:
75.36 in3
Step-by-step explanation:
Mark me brainliest?
Pls answer this I will give 10 points and brainlest for 4 to 6 answers
Answer:
wheres the question
Step-by-step explanation:
Find the Circumference and Area of the circle with a diameter of 3 inches.
Answer:
Circumference-18.84956, rounded, 18.85
Area- 28.27433, rounded-38.27
Answer:
C≈9.42in
A≈7.07in²
Step-by-step explanation:
C=2πr
d=2r
C=πd=π·3≈9.42478in
A=πr2
d=2r
A=1
4πd2=1
4·π·32≈7.06858in²
Hope this helps!
4. Before tax, you make $575 every paycheck. If 8% is deducted for taxes, how much tax is taken from your
check?
A) $46 B) $529 C) $621 D) $460
Answer:
A . $46
Step-by-step explanation:
because 575 - 8% = 529
529 + 49 = 575
(06.01)The probability that an event will occur is 95%. Which of these best describes the likelihood of the event occurring? Likely Certain Unlikely Impossible
Answer:
Likely
Step-by-step explanation:
The probability of occurrence of a certain event Given as 95% has a high probability figure and hence such event is LIKELY to occur. We cannot class this probability percentage as certain because, an event which is certain to occur who'll have a probability percentage of 100% or a value of 1. Therefore, a probability percentage of 95% occurrence still has 5% Chace of not happening, hence it is only very likely to occur. Hence, the phrase which best describes the probability of an event with 95% probability happening is LIKELY.
Grade low in math help if you can :) Geometry
Lauren wants to build a model airplane using a scale where 2 inches represents 15 feet. If the airplane is 75 feet long, how long should the model be?
A.
5 inches
B.
7.5 inches
C.
10 inches
D.
15 inches
Answer:
C) 10 inches
Step-by-step explanation:
I think the simplest way to do this is as follows:
divide 75 by 15 to get how many times you need to multiply 2in by
75/15=5
since 15(5)=75 or the actual size of the airplane,
2(5)=10 which is the size of the model airplane
Can someone pls help me find the area of this please
12.56
Step-by-step explanation:
A = π x r^2
r =2
2^2 = 4
π × 4 = 12.56
Write the equation of the line that passes through the points (9, -8) and (-7,3).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Answer:
y=-0.6875x -1.8125
y= -11/16x -29/16
Step-by-step explanation:
Change this fraction into a decimal: 80/100
.8
.08
8.0
.008
will give brainlist!!!
Answer:
0.8
Step-by-step explanation:
80 divided by 100 = .8 or 0.8
