Answer:
[tex]y=-8x-61[/tex]
Step-by-step explanation:
The slope-intercept form of the equation is y=mx+b where m is the slope and b is the y intercept. We know so far, that the slope is -8. We plug that in for m.
[tex]y=-8x+b[/tex]
Now, we need to find the y-intercept. The question gives us the point (-7,-5). We plug in -7 for x, and -5 for y.
[tex]-5=-8(-7)+b[/tex]
Then, we solve.
[tex]-5=56+b[/tex]
Subtract 56 from both sides.
[tex]-61=b[/tex]
Finally, we get this equation:
y=-8x-61
Determine which description represents a proportional relationship.
A farmer’s market sells different types of nuts in bulk. The cost of almonds is $7 per pound.
A craft store sells strings of glass beads. They cost $3 per string, or you can buy 3 strings for $8.
A craft store sells strings of glass beads. They cost $3 per string, or you can buy 3 strings for $8.
T-shirts at a store cost $15 each. If you purchase more than 2 T-shirts, you get a $3 discount on each T-shirt bought.,
A skateboard manufacturing company charges $75 per unit for an order of up to 100 skateboards, and $70 per unit for an order of 101–200 skateboards.
Answer:
Would it be the last one maybe?
identify the amount in this statement. 6 is 30% of 20
Answer: 6 or 20 would be the amount. (if there was only one, then i revise this.)
Step-by-step explanation:
I keep getting the wrong answer
Answer: [tex]f(t)=550t[/tex]
Step-by-step explanation:
Given
Distance between Toronto to Dallas is 1200 miles
speed of the plane is 550 mph
We know, [tex]distance=speed\timestime[/tex]
for any time t, distance is given by
[tex]distance=f(t)=550\times t[/tex]
where t is hours
for [tex]t=0,f(t)=0[/tex] i.e. plane is at Dallas at 2 pm
time taken to reach dallas is [tex]\dfrac{1200}{550}=2.18\ \text{hr}[/tex]
Colin made chocolate and vanilla cookies. He made 30
chocolate cookies. He made 2/3 as many vanilla as
chocolate. How many vanilla cookies did he make?
Answer:
20
Step-by-step explanation:
2/3 of 30 is 20
answer this plz I give brainliest
C.) 4 Hours, $60 Hope this helps!!!
A clinical psychologist is the primary therapist for 12 patients. She randomly selects a sample of 3 patients to be in her study. How many different samples of this size can be selected from this population of 12 patients using theoretical sampling and experimental sampling?
(a) theoretical sampling
samples
(b) experimental sampling
samples
Answer:
a)[tex]X=1728[/tex]
b)[tex]X'=220[/tex]
Step-by-step explanation:
From the question we are told that
Population size N=12
Sample size n=3
a)Generally using theoretical sampling we can solve mathematically
[tex]X=N^n[/tex]
[tex]X=12^3[/tex]
[tex]X=1728[/tex]
b)Generally using experimental sampling we can solve mathematically
[tex]X'=^NC_n[/tex]
[tex]X'=^1^2C_3[/tex]
[tex]X'=220[/tex]
HELP also if you don't know how to do it than don't add an answer it make me super mad.
What is the value of x?
Concrete workers are busy preparing to pour a rectangular patio on the rear of Miguel's new house. The workers have laid out, using boards, what appears to be rectangle to frame where the concrete will go.
What could the workers do to ensure the patio is really rectangular before pouring the concrete?
Answer:
See Explanation below.
Step-by-step explanation:
What the workers can do to ensure the patio is truly rectangular, before pouring the concrete, is to measure the length of the sides of the patio.
This requires full knowledge of the physical properties of a rectangle.
The opposite sides of a rectangle (the two sides which go in the same direction or which are parallel to each other) are equal in length and one set of parallel sides must be longer than the other set of parallel sides.
These are the conditions that the patio must satisfy, to be truly rectangular.
Once the workers have made sure of this, they can go ahead and pour the concrete.
Which BEST analyzes the nuances of word choice in line 21 of this play
excerpt?
The use of the word "customary" by Algernon signals
to the audience that necessary background
A
information will follow in order to help explain the
refreshment choices offered by Lane
The stage direction indicating that Algernon is to
B)
express his line "stiffly" is meant to help the audience
recognize the character's sense of being offended by
a previous comment made by Jack
The question that is presented by Algernon functions
as a subtle warning to Jack that Algernon suspects
him of misdeeds and has heard unsettling gossip
about Jack's activities over the last week
Algernon uses the words "slight refreshment' to
D)
emphasize the idea that Jack should not expect the
amount or variety of foods available at a formal
dinner during his brief visit to Half-Moon Street.
C
Answer: C
Step-by-step explanation:
114+92+47 find the x value
Answer:
where is the x in the equation tho. there is no x in the equation
Step-by-step explanation:
Can someone please help me?
Answer:
OMG I see that BTS sticker on your laptop--
Step-by-step explanation:
HELPPPPPPPLL
You-tube music channel plays 4 rap songs to 2 pop songs. The ratio is 4:2. Based on the information provided, How many rap songs does You-tube play for every 8 rap songs? How many pop songs does You-tube play for every 12 pop songs?
Answer:
4 pop songs for the first part 24 for the second I believe
Answer:
That would be 4 pop songs for the 8 rap songs on. The ratio would be 8:4.
The second on would be 24:12.
Step-by-step explanation:
Divya is painting a room. She uses 3/4 gallon of paint to cover 1/5 of a wall. If the walls are all the same size how much paint will she need to cover one wall?
Answer: 3 3/4
Step-by-step explanation: brainliest plsss
at 6:00 a.m., the temperature is 58°. At 2:00 p.m., temperature is 76°. Find the rate of change in degrees per hour during this time.
Answer:
The rate of change is of 2.25 degrees per hour.
Step-by-step explanation:
The rate of change in degrees per hour is given by by the change in temperature divided by the change in time(by number of hours).
In this question:
From 6 am to 2 pm, there are 12 - 6 + 2 - 0 = 6 + 2 = 8 hours
The change in temperature was of 76 - 58 = 18º
Rate of change:
18º/8 = 2.25º
The rate of change is of 2.25 degrees per hour.
why do some metals react with only steam?
Answer:
Metals which react with steam form the solid metal oxide and hydrogen gas.
In general, the more reactive the metal, the more rapid the reaction. Aluminium is unusual, because it is a reactive metal that does not react with water. Its surface forms a protective layer of aluminium oxide that keeps water away from the metal below.
The apparatus used to react a metal with steam and collect the gas produced is shown below.
Answer:
This is because some metals like aluminium, zinc, iron do not react with hot/cold water ; they react only with steam to form a metal oxide and hydrogen.
Step-by-step explanation:
Pls help I need a good grade on this I’ll brainlest
Answer:
-10.4 is the answer from my side
7. A bag of M&Ms dumped on the table and you court 91 blue pieces Approximately how many
M&ms do you expect to be in the entire bag based on the proportions of the entire class?
Answer:
i would think that there would be at least 100 m&m in the bag
Step-by-step explanation:
i might be wrong a hven't had m&m in about 10 years
MP.4 Model with Math
6 cookies in 1 bag . How many Cookies
are in 5 bags ? use the Bar diagram to write and solve an equation .
? Cookies
I need help pls I only have 3 mins!!
Answer:
First one is 6 16/21
Second one is 3 14/15
Step-by-step explanation:
I need help on this plz plz plz
Answer:
j=13.5
Step-by-step explanation:
Given the function g(x) = x2 + 10x + 19, determine the average rate of change of
the function over the interval -9 < x < 1.
Answer:
The average rate of change of the function over the interval is of 2.
Step-by-step explanation:
Suppose we have a function f(x), over an interval (a,b).
It's average rate of change over the interval is given by:
[tex]A = \frac{f(b) - f(a)}{b - a}[/tex]
In this question:
[tex]g(x) = x^2 + 10x + 19[/tex]
Over the interval -9 < x < 1, so [tex]a = -9, b = 1[/tex]. So
[tex]A = \frac{g(1) - g(-9)}{1 - (-9)} = \frac{g(1) - g(-9)}{10}[/tex]
We have that:
[tex]g(1) = 1^2 + 10(1) + 19 = 1 + 10 + 19 = 30[/tex]
[tex]g(-9) = (-9)^2 + 10(-9) + 19 = 81 - 90 + 19 = 10[/tex]
So
[tex]A = \frac{30 - 10}{10} = \frac{20}{10} = 2[/tex]
The average rate of change of the function over the interval is of 2.
the distance between two towns on a map is 5 cm if the real distance between the two towns is 25 km what is the scale of the map
Answer:
50000 km per cm I think
Step-by-step explanation:
Answer:
5km to 1cm, (50000:1, if converted to centimeters).
Step-by-step explanation:
Write 25/60 and 8/20 as fractions in simplest form. Then determine whether the ratios form a proportion.
Please help! My school Chromebook doesn't allow me to watch ads, so right now I can't even get the answer! Please respond quickly...
Answer:
8/20= 4/5
25/60= 5/12
Step-by-step explanation:
8÷4
Miranda bought a dress for $24.95 and a skirt for $14.95. The sales tax is 9.5%. What is the total cost Miranda will pay the clerk?
Answer:
Step-by-step explanation:
the total price for clothes= 24.95+14.95=39.90
sales tax 39.90*9.5/100=3.79
the total paid to the clerk will be=39.90+3.79=43.69
Evaluate: 3 - 4 - 4 - (-2)
Can someone help im struggling real hard
Answer:
(8x - 9)˚ = 63˚
and
(3x)˚ = 27˚
Step-by-step explanation:
heeyyyyy remember me?
Complementary angles are angles that equal 90˚, so we can create an equation:
(8x - 9) + 3x = 90
Remove the paranthesis
8x - 9 + 3x = 90
Add 9 to both sides
8x + 3x = 99
Simplify
11x = 99
divide both sides by 11
x = 9
So if we plug in x for 9 we get:
8x - 9
8(9) - 9
72 - 9
63
3x
3(9)
27
So
(8x - 9)˚ = 63˚
and
(3x)˚ = 27˚
It would be awesome if I had some help please. An answer is fine, but an explanation would be much appreciated.
Answer:
868x
Step-by-step explanation:
Question 13, pls help & tell how to do the problem thank u
Answer:
(-4,-10) and (5,-3)
Step-by-step explanation:
To be honest, this kind of question allows for any coordinates as long as they have the slope of 9/7.
I know the slope equation is (y2-y1)/(x2-x1) = m (where m is slope)
(y2-y1)/(x2-x1) = 9/7
From this equation, find any two numbers that have a difference of 9 to the y-coordinates.
I'll go with 5 and -4 (y-coordinates)
And two integers that have a difference of 7 for the x-coordinates.
I go with -3 and -10 (x- coordinates)
So the points I got are,
(5-(-4))/((-3)-(-10)) = 9/7
5-(-4) is equal to 5+4 (2 minus signs are equal to 1 plus sign), which is 9.
(-3)-(-10) is equal to -3+10 (2 minus signs are equal to 1 plus sign), which is 7.
The two points are (-4,-10) and (5,-3)
Notice if we were to subtract 5 from -4, we would also have to subtract -3 from -10.
-4-5= -9 and -10- -3 = -10+3 = -7
-9/-7 is the same as 9/7.
Basically, (-4,-10) and (5,-3) are different coordinates and you can only switch them as coordinate 1 or 2 but not the points.
Sorry, took a while, hope I was able to help! Good Luck.
Using the dimensions 8ft x 32 ft
What will the new dimensions of the rectangle be after a dilation with a scale factor of 4?
