Answer:
y-intercept: (0, -2)
Step-by-step explanation:
Determine by how much x (the run) and y (the rise) change as you go from (-4, -6) to (3, 1): The change in x is 7 and that in y is also 7. Thus, the slope is
m = 7/7, or m = 1.
Using the point-slope form and the point (3, 1), we get:
y - 1 = 1(x - 3), or y = 1 + x - 3, or y = x - 2
Comparing this to y = mx + b, we see that the y-intercept is -2.
Am I right or am I wrong ?
Answer:
7/15
Step-by-step explanation:
Yes you are correct with your answer as you cannot simplify further.
Answer:
Correct
Step-by-step explanation:
7/15 is in simplest form
A bag contains red marbles, white marbles, and blue marbles. Randomly choose two marbles, one at a time, and without replacement. Find the following. Enter your answers as fractions or decimals rounded to three decimal places.
(a)The probability that the first marble is red and the second is blue.
P(first white and second blue) =
The probability that both are the same color.
P(same color) =
Answer:
[tex]P(First\ White\ and\ Second\ Blue) = \frac{3}{28}[/tex]
[tex]P(Same) = \frac{67}{210}[/tex]
Step-by-step explanation:
Given (Omitted from the question)
[tex]Red = 7[/tex]
[tex]White = 9[/tex]
[tex]Blue = 5[/tex]
Solving (a): [tex]P(First\ White\ and\ Second\ Blue)[/tex]
This is calculated using:
[tex]P(First\ White\ and\ Second\ Blue) = P(White) * P(Blue)[/tex]
[tex]P(First\ White\ and\ Second\ Blue) = \frac{n(White)}{Total} * \frac{n(Blue)}{Total - 1}[/tex]
We used Total - 1 because it is a probability without replacement
So, we have:
[tex]P(First\ White\ and\ Second\ Blue) = \frac{9}{21} * \frac{5}{21 - 1}[/tex]
[tex]P(First\ White\ and\ Second\ Blue) = \frac{9}{21} * \frac{5}{20}[/tex]
[tex]P(First\ White\ and\ Second\ Blue) = \frac{9*5}{21*20}[/tex]
[tex]P(First\ White\ and\ Second\ Blue) = \frac{45}{420}[/tex]
[tex]P(First\ White\ and\ Second\ Blue) = \frac{3}{28}[/tex]
Solving (b) [tex]P(Same)[/tex]
This is calculated as:
[tex]P(Same) = P(First\ Blue\ and Second\ Blue)\[/tex][tex]or\ P(First\ Red\ and Second\ Red)\ or\ P(First\ White\ and Second\ White)[/tex]
[tex]P(Same) = (\frac{n(Blue)}{Total} * \frac{n(Blue)-1}{Total-1})+(\frac{n(Red)}{Total} * \frac{n(Red)-1}{Total-1})+(\frac{n(White)}{Total} * \frac{n(White)-1}{Total-1})[/tex]
[tex]P(Same) = (\frac{5}{21} * \frac{4}{20})+(\frac{7}{21} * \frac{6}{20})+(\frac{9}{21} * \frac{8}{20})[/tex]
[tex]P(Same) = \frac{20}{420}+\frac{42}{420} +\frac{72}{420}[/tex]
[tex]P(Same) = \frac{20+42+72}{420}[/tex]
[tex]P(Same) = \frac{134}{420}[/tex]
[tex]P(Same) = \frac{67}{210}[/tex]
solve for q 19 = q + 4 q=
Answer:
Assuming the 19 stood for an exponent, q = 1.098...
Step-by-step explanation:
Plugging in [tex]q^{19} = q + 4[/tex] in the graphical calculator, we can see that the solution is approximately q=1.098. There are no ways of solving this equation algebraically.
Answer:
q = 15
Step-by-step explanation:
19 = q + 4
Subtract 4 from each side
19-4 = q + 4-4
15 = q
A pet store sells goldfish and hermit crabs,
The store sells 7 goldfish and 3 hermit crabs for $26.
• The store sells 4 goldfish and 5 hermit crabs for $28.
How much would the store sell 6 goldfish and 4 hermit crabs for?
Answer:
[tex]Cost = \$28[/tex]
Step-by-step explanation:
Given
Represent Goldfish with g and hermit crabs with h.
The first statement, we have:
[tex]7g + 3h = 26[/tex]
The second statement, we have:
[tex]4g + 5h = 28[/tex]
Required
Determine the selling price of 6 goldfish and 4 hermit crabs
The equations are:
[tex]7g + 3h = 26[/tex] --- (1)
[tex]4g + 5h = 28[/tex] --- (2)
Make g the subject in (2)
[tex]4g + 5h = 28[/tex]
[tex]4g = 28 - 5h[/tex]
Divide both sides by 4
[tex]g = \frac{1}{4}(28 - 5h)[/tex]
Substitute [tex]\frac{1}{4}(28 - 5h)[/tex] for g in (1)
[tex]7g + 3h = 26[/tex]
[tex]7(\frac{1}{4}(28 - 5h)) + 3h = 26[/tex]
[tex]\frac{7}{4}(28 - 5h) + 3h = 26[/tex]
Multiply through by 4
[tex]4 * \frac{7}{4}(28 - 5h) + 4*3h = 26*4[/tex]
[tex]7(28 - 5h) + 4*3h = 26*4[/tex]
Open bracket
[tex]196 - 35h + 12h = 104[/tex]
[tex]196 -23h = 104[/tex]
Collect Like Terms
[tex]-23h = 104-196[/tex]
[tex]-23h = -92[/tex]
Make h the subject
[tex]h = \frac{-92}{-23}[/tex]
[tex]h = \frac{92}{23}[/tex]
[tex]h = 4[/tex]
Substitute 4 for h in [tex]g = \frac{1}{4}(28 - 5h)[/tex]
[tex]g = \frac{1}{4}(28 - 5*4)[/tex]
[tex]g = \frac{1}{4}(28 - 20)[/tex]
[tex]g = \frac{1}{4}(8)[/tex]
[tex]g = 2[/tex]
This implies that:
1 goldfish = $2
1 hermit crab = $4
The cost of 6 goldfish and 4 hermit crabs is:
[tex]Cost = 6g + 4h[/tex]
[tex]Cost = 6*\$2 + 4*\$4[/tex]
[tex]Cost = \$12 + \$16[/tex]
[tex]Cost = \$28[/tex]
The graph of the function f is shown. f(0) =
Answer:
-5
Step-by-step explanation:
f(x) is a function.
f(0) means when x=0 what is the y value
We can look at the graph and when x=0 y is at -5
so the answer is -5
Annabeth and Charlie are both on road trips. Annabeth’s distance, in miles, from New York t hours after 12:00 p.m. is modeled by this function.
Charlie travelled greater amount of time.
What is function?An expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable (the dependent variable).
Given:
D(t) = 60 |t- 3|
for, t=0
D(0) = 60*3 = 180
For t=1,
D(1) = 120
For t= 2
D(2) = 60
According to the data of Charlie and Annabeth it can bee seen that charlie had been travelling greater amount of time.
Learn more about function here:
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Answer:
Charlie!
Step-by-step explanation:
The first Olympics were held in Greece more than 7 x 7 x 7 x 7 years ago.
The factor
is the base.
The factor is multiplied
times.
The exponent is
.
Then determine its value.
1% of what number is 7?
WILL GIVE BRAINIEST TO FASTEST AND CORRECT ANSWER WITH WORK SHOWN!
Answer:
1%=0.07
Step-by-step explanation:
Im going to assume the question says what is 1% of 7.
so 100%=7
divide my 10 to get to 10%
10%=0.7
do the same thing.
1%=0.07
you just go backwards when dividing by 10.
9514 1404 393
Answer:
700
Step-by-step explanation:
You want to find x such that ...
1% of x = 7
0.01x = 7 . . . . . . . . . . use math symbols
x = 7/0.01 = 700 . . . . divide by the coefficient of x
1% of 700 is 7.
Solve for x.
a. 2/7(x-4)=2
b. -85x+74=499
c. 3/5x+22=127
help asp
Answer:
a. X=11
b. X=-5
c. X=175
Select the correct answer,
If x + 10 = 70, what is X?
O A.
40
OB.
50
Ос.
60
OD
70
O E
80
Reset
Next
Given the expression x- + 8x + 5, find the equivalent
expression in vertex form.
(x+4)² – 11
(x+8)2 + 21
(x+4) +9
(x+8) ² – 59
Answer:
(x+4)^2-11
hope it's helpful ❤❤❤❤
❤
THANK YOU.
Which table shows a linear functioooooonnn helpppp!
Answer:
None so im assuming its the final one?
Step-by-step explanation:
Answer:
c i think
Step-by-step explanation:
HELP ME PLEASE (50 points) picture below HELP PLEASE
Answer:
72.32
Step-by-step explanation:
i have spoken
Answer:
72.32 degrees
Step-by-step explanation:
the picture shows a supplementary angle, which equals 180 degrees.
first, solve for x.
since the entire figure equals 180 degrees, set the equation equal to 180. then add in the measurements, which are 7x, 8x, and 44.4.
180 = 7x + 8x + 44.4
combine like terms (7x and 8x).
180 = 7x + 8x + 44.4 ⇒ 180 = 15x + 44.4
subtract 44.4 from both sides. the positive 44.4 will cancel out, so all you have to do is subtract 44.4 from 180.
180 - 44.4 = 135.6
now, your equation is...
135.6 = 15x
divide both sides by 15.
(135.6)/15 = (15x)/15 ⇒ 9.04 = x, or x = 9.04
now plug 9.04 in for x in both 7x and 8x.
7x ⇒ 7(9.04) ⇒ 63.28
8x ⇒ 8(9.04) ⇒ 72.32
*the highlighted angle, 8x, is 72.32 degrees.
checking your work:
now, all your measurements are 63.28, 72.32, and 44.4
check your work by adding all the measurements together and setting that equal to 180.
63.28 + 72.32 + 44.4 = 180
180 = 180
since both sides are equal, all of the values are correct!
now that you know your work is correct, it is fully safe to say that the highlighted angle is 72.32 degrees.
Find the quotient. 10/6 divided by 1/12
Answer:
the awnser is 20
Step-by-step explanation:
10
6
÷
1
12
=
10
6
×
12
1
=
10 × 12
6 × 1
=
120
6
=
120 ÷ 6
6 ÷ 6
= 20
Step-by-step explanation:
10/6 / 1/12
= 20
10 12 120
x =
6 1 6
120/6=20
hope it helps! :3
Please help me please
Thank you
Answer:
Y=1/2x
Step-by-step explanation:
the y intercept is 0 so we dont show it, and slope is rise over run, it goes up one unit every two times to the right
i hope this help!
What is 85.92 divided by 4
[tex]correct is it Because Correct[/tex]A.
Answer:
The answer of your question : 85.92 divided by 4 is equal to (21.48)
A map has a scale of 1 cm to 14 km.
On the map,the distance between Manchester and London is 18.8 cm.
What is the real distance,in km,between Manchester and London?
solve and receive brain list
Answer:
y=2
x=-1
Step-by-step explanation:
2x-4y=-10
-2x-y=0
Add Together and get:
-5y=-10
y=2
put the 2 in for y in either equation to solve for x
2x-4(2)=-10
2x-8=-10
2x=-2
x=-1
Find the y-intercept of the following equation. Simplify your answer. 8x - 3y = -3
Jessica is making 2 loaves of bread she needs 3/4 cup of sugar for each loaf her measuring cup only holds 1/4 cup how many times will the cup need to be filled
Answer:
The cup will be filled 6 times.
Step-by-step explanation:
If her measuring cup only holds 1/4 cups then we need to find how many 1/4 cups are in 3/4 cups:
(1/4) + (1/4) + (1/4) = 3/4
3/4 = 3/4
The measuring cup will have to be filled 3 times for 1 loaf.
If she has 2 loaves that means that she has to fill her 1/4 measuring cup 6 times (because 2 * 3 = 6)
Hope this helps!!
- Kay :)
Mr. Hamilton sponsors the creative writing club. He decided to make booklets of his students'
poems and stories to hand out at the school's activity fair. He went to a local printing shop
that charges $0.25 per page in the book and $1.00 to bind the pages together. The booklet
Mr. Hamilton is making has p pages, and he plans to make 50 booklets.
Pick all the expressions that represent how much Mr. Hamilton will spend making the
booklets.
12.50p + 50.00
50(1.25p)
50(0.25p + 1.00)
12.50p + 50.00p
Answer:
50(1.25p) and 50(0.25p + 1.00)
Step-by-step explanation:
They both equal the same answer.
50(1.25p) = 62.5
50(0.25p + 1.00) = 62.5
when in parentheses, you multiply
50 * 1.25 = 62.5
50 * 0.25 + 1.00 = 62.5
The expression for the given scenario is 50(0.25p+1.00). Therefore, option A and C are the correct answers.
What is an expression?An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.
Given that, Mr. Hamilton sponsors the creative writing club.
He went to a local printing shop that charges $0.25 per page in the book and $1.00 to bind the pages together.
The booklet Mr. Hamilton is making has p pages, and he plans to make 50 booklets.
So, the expression is 50(0.25p+1.00)
= 12.50p+50.0
Therefore, option A and C are the correct answers.
To learn more about an expression visit;
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mike can do 126 sit-ups in six minutes. how many sit-ups is that per minute?
Answer:
21
Step-by-step explanation:
126/6= 21 sit ups per minute
2h 15m +1h 50m +1h 40m+ 44m+2h 35m+1h 6m+1h 22m
Answer:
11 h and 32 m is the answer
Condos in norwood go up in value by 10% each year. if gregory family's condo is now worth $160,000, what will it be worth in 5 years? i will give brainliest to the person that answers first.
Answer:
$257,681.60
Step-by-step explanation:
What's happening here is called "compounding," and the appropriate formula is A = P(1 + r)^t, where r is the rate of increase as a decimal fraction.
With the given data, we have:
A = $160,000(1 + 0.10)^(5), or:
= $160,000(1.10)^5, or:
= $160,000(1.6105) = $257,681.60 : condo value after 5 years
help with the question please!! will award :))))))))))))))))
Answer:
angle 2 is 63 reason is interior angle
angle 3 is 117 corresponding angle
Answer:
measure 1 = 117 degrees
measure 2 = 180 - 117 = 63 degrees
i dont know he reason because i cant see the options
Step-by-step explanation:
its the ch eating off the principal test for me
A solution consisting of 95 mg of dopamine in 95 mL of solution is administered at a rate of 30 ml/hr. Complete parts (a) and (b) below.
a. What is the flow rate in mg of dopamine per hour?
mg/hr (Type an integer or decimal rounded to the nearest thousandth as needed.)
Answer:
30 mg
Step-by-step explanation:
Flow rate of dopamine per hour:
Flow rate of dopamine per hour = (95g)*(30ml/hr) / 95ml
Flow rate of dopamine per hour = 30mg
Find the cosine of
A. 12/13
B. 13/12
C. 5/12
D. 5/13
Help hurry !!
It was recently estimated that homes without children outnumber homes with children by about 8 to 7. If there are 3870 homes in a county, how many of them are homes without children?
Answer: x = 2,340 homes without children
There are 2,340 homes without children.
Step-by-step explanation:
'x' represent the number of homes without children
'y' represent the number of homes with children
x : y = 9 : 7
Since the total number of homes is 4160 means x + y = 4160.
From x + y = 4160 follows y = 4160 - x.
Plug y = 4160 - x into x : y = 9 : 7
x : (4160 - x) = 9 : 7
help me please asap I'll give brainleist
B!!!!!!!!!!!!!!!!!!!!!!
hope this helps
What is the equation of the line? (Lol please answer I didn’t pay attention in class)