Answer:
Step-by-step explanation:
y - y1 = m (x - x1) the slope m = 1 (x1, y1) = (-7, -1)
y - -1 = 1 (x - -7)
y + 1 = 1 (x + 7)
y = x +6
Three men working together can finish a house repair job in 10 days. How manydays will 5 men working at the same rate finish the same job? *
Answer:
17 days
Step-by-step explanation:
Number of days in which 3 men can finish a house repair job = 10 days
Number of days in which 1 man can finish a house repair job = [tex]\frac{10}{3}[/tex] days
Therefore,
Number of days in which 5 men can finish a house repair job = Number of days in which 1 man can finish a house repair job × 5
[tex]=\frac{10}{3}(5)=\frac{50}{3}=16.6[/tex] ≈ 17 days
Select the correct answer.
Find the solution(s) for x in the equation below.
x(x - 1) = 42
А. x = -7; x = -6
B. x = 7; x = 6
C. x = 7; x = -6
D. x = 6
Answer:
7 and -6 (corresponding to Answer C)
Step-by-step explanation:
Solve x(x - 1) = 42 for x.
To do this, first perform the indicated multiplication and then rearrange the terms in standard quadratic function order:
x^2 - x - 42 = 0
Factoring yields (x - 7)(x + 6) = 0,
leadng to roots 7 and -6 (corresponding to Answer C)
High Voltage Gymnasium holds a contest to see who can climb a rock wall the fastest. The table below shows a climber's time in minutes, , and how high up the wall she climbed, in feet, , at different points of her climb.
Assume that the climber climbed the wall at a constant rate. Write an equation that relates and .
Answer: yes
Step-by-step explanation: think about it
PLS HELP ASAP WILL GIVE BRAINLEAST
Answer:
32
Step-by-step explanation:
A fair coin is tossed 14 times. What is the probability of obtaining exactly 1 head? (Enter your answer as a reduced fraction or a decimal rounded to 4 places.)
Answer:
0.0009 probability of obtaining exactly 1 head
Step-by-step explanation:
For each toss, there are only two possible outcomes. Either it is a head, or it is not. The probability of a toss being a head is independent of any other toss. This means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
A fair coin is tossed 14 times.
Fair coin means that it is equally as likely to be heads or tails, so [tex]p = 0.5[/tex]
14 times means that [tex]n = 14[/tex]
What is the probability of obtaining exactly 1 head?
This is P(X = 1).
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
[tex]P(X = 1) = C_{14,1}.(0.5)^{1}.(0.5)^{13} = 0.0009[/tex]
0.0009 probability of obtaining exactly 1 head
(50 POINTS) Math Inverse Functions please help
Answer:
See below.
Step-by-step explanation:
An inverse function has the x and y coordinates switched. For example, if a function has point (1, 3), then the inverse function has point (3, 1).
Let's find the ordered pairs of the inverse function. We take all the ordered pairs of the original function:
(1, 3), (7, 4), (8, 6), (9, y)
Now we switch x and y in each ordered pair to come up with the inverse function.
The inverse function has these ordered pairs:
(3, 1), (4, 7), (6, 8), (y, 9)
For a relation to be a function, a value used as an x-coordinate can appear only once.
The last ordered pair is (y, 9). For the inverse relation to be a function, y cannot be 3, 4, or 6.
Answer:
inverse of ordered pair (1,3),(7,4),(8,6)and (9,y)
is (3,1),(4,7),(6,8)and(y,9)
restriction is
y≠3,4&8
18. Find the area of the triangle.
Answer: 16.5
Step-by-step explanation:
Base: 11
Height: 3
Area of triangle = bh/2
11x3=33
33/2= 16.5
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
A. Only the location of the 3rd quartile will change in the new plot.
B. The 1st, 2nd, and 3rd quartiles will change in the new plot.
C. The locations of both whiskers will change in the new plot.
D. The left whisker and the 1st and 3rd quartiles will change in the new plot.
Which is the graph of y = – 3?
Answer:
this should be the graph.
Step-by-step explanation:
I hope this helps.
What is the distance, X between Jon's house and Maria's house?
Answer:
20ft
Step-by-step explanation:
PLEASE HELP
select all that apply
ANSWER CHOICES:
1. (-3.5.5)
2. (-1,-2)
3. (0,4)
4. (5,-8)
5. (6, 3/2)
Answer:
it is 1 I agree
Step-by-step explanation:
I don't know tho
Help pleaseee ill give brainliest will report if not an answer
Step-by-step explanation:
.............,.,.,.,.,.,.,.,
can someone solve this? (x+2)2+y2=25
Answer:
x wouild equal
ywould equal
Step-by-step explanation:
eqaution
people on this site are strange, points for whatever strange person needs them, its a life changer yes i know you welcome.
Answer:
lol fr im failing math i need help
Step-by-step explanation:
Answer:
Thanks
Step-by-step explanation:
yuh
Which statement is true about this set of data?
43, 50, 60, 36, 47, 50, 52, 78
A. The range is 31.
B. The mode is 78
C. The median is 51
D. The mean is 52.
Answer:
D. The mean is 52.
Step-by-step explanation:
In order to find the mean, you add up all of the numbers and then divide that answer by how many numbers there are.
43+50+60+36+47+52+78=416
416/8=52
Answer:
D. The mean is 52.
Step-by-step explanation:
Add all numbers in the set:
36+47+50+50+52+60+78= 416
Now, divide the sum by how many numbers are in the set; in this case, there are 8 numbers so:
416÷ 8= 52
If a triangle has angle measurements of 15 degrees and 90 degrees what is the measure of the third angle
Diego's family car holds 14 gallons of fuel. Each day the car uses 0.6 gallons of fuel. A warning light comes on when the remaining fuel is 1.5 gallons or less. Starting from a full tank, can Diego's family drive the car for 14 days without the warning light coming on? Explain your reasoning.
Answer:
20 days
Step-by-step explanation:
Subtract 1.5 gallons from 14 gallons to obtain the number of days the car will run without the warning light going on: 12.5 gallons.
Dividing this result by 0.6 gallons/day, we get
12.5 gal
------------------- = 20.82 days. Round this down to 20 days. (We're not
0.6 gal/day dealing in partial days.)
Answer:
2
Step-by-step explanation:
What are the two solutions to f(x)=g(x) when f(x)=x^2+3 and g(x)=-x+9
Answer:
x = -3, x = 2
Step-by-step explanation:
x² + 3 = -x + 9
x² + x - 6 = 0
(x+3)(x-2) = 0
Please answer this. I would greatly appreciate it
No links, no fake answers or your getting reported.
Answer:
The length of the side TU is approximately 29.9 feet long.
Step-by-step explanation:
There is a trigonometry law called the law of sines, which states the sine of an angle divided by its opposite side is equivalent to the sine of all the other angles in that right triangle divided by its corresponding opposite side. You can use this law to help you solve for x. By applying the law of sines, you'll get that [tex]\frac{sin(90^{o})}{x} =\frac{sin(42^{o})}{20}[/tex] ⇒ [tex]\frac{x}{sin(90^{o})} = \frac{20}{sin(42^{o})}[/tex] ⇒ [tex]x=\frac{20*sin(90^o)}{sin(42^{o})}[/tex] ⇒ [tex]x=29.9ft.[/tex]
WILLL GIVE BRANLIEST PLSSSSSSSSSSSSSSSSSSSS
Answer:
100°
Step-by-step explanation:
If my calculations are correct, I suppose the final answer will be 100 degrees.
If you see it, It's clearly mirrored.
Plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
x = 45°
Step-by-step explanation:
x = 90° - 45° = 45°
can somone pls help me asap
Answer: 10 + 10 + 5 + 5 + 20 + 20 + 25 + (25 - 10) = 110
Step-by-step explanation:
I think this is correct
Consider the barn shown below. Assume that the barn has no floor. Part A: What is the volume of the barn?Part B: What is the surface area of the barn?
Offering 20 brain pts!!!
Answer:
the volume is Pie X Y^-3= 6 + 7/2 which means the surface area is half of Pie/12
Step-by-step explanation:
i don't know there's no picture
Anders flips two coins. Explain why the probability of two heads is 1/4
Answer:
If anders flips one coin, he has a 1/2 chance of heads.
if he flips two, he has to get to heads, which the chances are 1/2 and 1/2
So multiply 1/2*1/2
you get 1/4
question:2x²-5x+3
answer:
On a chilly afternoon in New Jersey, the temperature was 4 degrees Fahrenheit. By nightfall, the temperature dropped 9 degrees Fahrenheit. What is the temperature at nightfall in degrees of Fahrenheit?
Answer:
negative 5
Step-by-step explanation:
4-9= -5
HELP PLEASE!! Identify Structure What linear expression would you need to subtract from (5x+3) to have a difference of −x ?
Answer:
Expression that is to be deducted will be (6x + 3).
Step-by-step explanation:
Let the linear expression that is to be subtracted from the given expression (5x + 3) is (ax + b).
After subtracting (ax + b) from (5x + 3) the remainder is (-x)
(5x + 3) - (ax + b) = -x
(5x - ax) + (3 - b) = -x
(5 - a)x + (3 - b) = -x
By comparing coefficients,
(5 - a) = -1
a = 5 + 1
a = 6
(3 - b) = 0
b = 3
Therefore, expression that is to be deducted from (5x + 3) will be (6x + 3).
simplify (6^7)^3
a.(1/6) ^ 21
b . 6^21
c. 42^3
d. 6^10
Answer:
B is the answer.
Step-by-step explanation:
Use power rule: (x^a)^b = x^ab.
[tex] {6}^{21} [/tex]
Answer:
b. 6²¹
Step-by-step explanation:
(6⁷)³=(6³)⁷===> 6²¹
Line parallel to y= -2 + 7
Answer:
So, equation y=7 is parallel to x-axis. A line parallel to X axis. x axis because it is the same thing as y=0x+7 or y=7, therefore y intercept is 7 and slope is 0.
Step-by-step explanation:
the circumference of a circle is 154cm. What is the diameter of the circle?
Answer:
51.33 cm
Step-by-step explanation:
154cm / π = 51.33 cm
