matematica ayuda xfis
Answer:
خ
Step-by-step explanation:
What is the y intercept of a line that has a slope of-3 and passes through point (-5,4)
-17
-11
7
19
what is 4+n/3=2
the slash is a fraction
Answer:
n = -6
Step-by-step explanation:
4 + [tex]\frac{n}{3}[/tex] = 2
[tex]\frac{n}{3}[/tex] = -2
n = -6
Answer:
n = -6
Step-by-step explanation:
4 + n/3 = 2
subtract 4 from both sides
n/3 = 2 -4
n/3 = -2
multiply both sides by 3
n = 3(-2)
n = -6
HELP ASAP!
38 points if you answer pls
Answer:
b
Step-by-step explanation:
Every day of the week Sam's Swim
Shop offers a different deal to its
loyal customers. If the total price
Tina paid was $66.00 and it
normally would cost $88.00, what
percent off was the daily deal?
Answer:
Step-by-step explanation:
Which of the following sets of data does NOT represent a function?
a. Set A
b. Set B
c. Set C
d. Set D
Answer:
D
Step-by-step explanation:
Set D is not a functions. Functions are defined as each x having only 1 y value associated with it. 2 in the x column has two values associated with it: 1 and 2
D is not a function.
3/5x+2+20 What is the answer
What is the area of a triangle with 2 ft by 2 ft
Answer:
A=hbb
2
Step-by-step explanation:
Answer:
If the base is 2 and the height is 2, the area is 2
Step-by-step explanation:
Find the unit rate for number of parts manufactured per hour if 1620 parts are made in 6 hours.
Answer:
270 parts per hour
Step-by-step explanation:
given
we are told that 1620 parts are manufactured in 6 hours.
Required
Unit rate.
The unit rate in this context is defined as the number of parts that can be manufactured in one hour
Step two:
To find the unit rate, we have to divide the total parts manufactured by the total time taken
unit rate= 1620/6
unit rate= 270 parts per hour
10 points
i need help
Answer: How fast was she going per hour? 12.5 miles.
#2 is 2.7 hours in 4.5 miles
Step-by-step explanation:
PLEASE I NEED THE ANSWER TO 1 + 1
Answer:
uhhhhh 3
Step-by-step explanation:
Step-by-step explanation: I know, hardest question known to man.
5. An airline ticket to Florida from a certain city costs $249. How much money does
the airline collect if 85 tickets are sold?
Answer: $21165
Step-by-step explanation:
249 x 85 = 21165
A. 5
B. 7
C. 31
D. 11
Answer:
the answer is five by using the formula for the area of a trapezoid you have to add and subtract like terms...... blah blah blah... at the end you divide both sides by _8 and there u have 5 ur welcome lol
Find the measure of b. PLEASE HELP
( PLEASE HELP , TIMED ) A pet supply store sells three dog collars and two leashes for $59.75. The same pet store sells one dog collar and three leashes for $53.75. Find the cost of one dog collar and one leash.
Answer:
how can i help also comment me i wanna talk bc im lonely lol
Step-by-step explanation:
The cost of one dog collar and one dog leash are 10.25 dollars and 14.5 dollars respectively
How to form an equation?let
the cost of each dog collars = x
the cost of each leashes = y
Therefore,
3x + 2y = 59.75
x + 3y = 53.75
Hence,
3x + 2y = 59.75
3x + 9y = 161.25
7y = 101.5
y = 101.5 / 7
y = 14.5
Therefore,
x + 3y = 53.75
x + 3(14.5) = 53.75
x = 53.75 - 43.5
x = 10.25
learn more on equation here: https://brainly.com/question/12060253
#SPJ2
Situation:
A 33 gram sample of a substance that's
used to detect explosives has a k-value
of 0.1473.
N = Noe
-kt
No = initial mass (at time t = 0)
N = mass at time t
k = a positive constant that depends on
the substance itself and on the units
used to measure time
t = time, in days
Find the substances half life, and days. Round your answer to the nearest 10th
Answer:
Half life = 4.7 days
Step-by-step explanation:
Formula to get the final amount of the substance after the time 't',
[tex]N_t=N_0e^{-kt}[/tex]
Here, [tex]N_t[/tex] = Final amount of the substance
[tex]N_0[/tex] = Initial amount
k = decay constant
t = Duration or time
Now by substituting the values in the formula,
[tex]N_t=N_0e^{-0.1473t}[/tex]
If [tex]N_t=\frac{1}{2}(N_0)[/tex] [For half life]
[tex]\frac{1}{2}(N_0)=N_0e^{-0.1473t}[/tex]
[tex]\frac{1}{2}=e^{-0.1473t}[/tex]
[tex]2=e^{0.1473t}[/tex]
ln(2) = [tex]\text{ln}(e^{0.1473t})[/tex]
0.69315 = 0.1473t
t = 4.71 days
t ≈ 4.7 days
Therefore, half life of the substance is 4.7 days.
Answer:
4.7
Step-by-step explanation:
At the garden shop, each small tree costs $125 and each large tree costs $275.
How much will 3 small trees and 1 large tree cost?
To prepare for a bake-off, Travis used 630 grams of flour each day for 3 weeks. How many kilograms did Travis use in those 3 weeks?
Answer:
hahahahhahahahahahahahahq
Let P = {4, 5, 6, 7, 8), Q = {5, 6, 7), and R = {1, 2}, Find PUQ. 0 A. {1, 2, 4, 5, 6, 7, 8} o B. {5, 6, 7} c. [4, 5, 6, 7, 8} 0 D. ©
Answer:
This isn't an equation right?
Step-by-step explanation:um ...
Answer: C: {4,5,6,7,8}
Step-by-step explanation:
please help
The domain for f(x) and g(x) is the set of all real numbers.
Let f(x) = 3x + 5 and g(x) = x2.
Find f(x) + g(x).
Answer:
f(x) + g(x) = x^2 + 3x + 5
Step-by-step explanation:
In order to do this, you need to substitute f(x) for 3x +5 and substitute g(x) for x2 (which I'm assuming is x squared, which I will be wrIting as x^2. If this is not the problem, please correct me)
f(x) + g(x) = 3x + 5 + x^2
Now, you need to put the varibles in decreasing order of exponents.
f(x) + g(x) = x^2 + 3x + 5
Answer:
Step-by-step explanation:
The domain of a function is the set of all possible inputs for the function. For example, the domain of f(x)=x² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0. We can also define special functions whose domains are more limited.
On a test, Alice had 80% of the problems right. If she had
20 problems correct, how many questions were on the test?
Show work please
Answer: she would get 100%
Step-by-step explanation: every correct question u get 5 points so 20 * 5 = 100
Answer:
25
Step-by-step explanation:
80% = 0.80
0.80x = 20
0.80x/0.80 = 20/0.80
x = 25
So there was 25 questions on the test
Express 8 as a fraction.
Answer:
8/1
Step-by-step explanation:
You just have to put a one for the denominator for any whole number you want to make a fraction.
Please mark me as brainliest.
Mrs. Milavec had to take out a loan, to pay for Oreos. She borrowed $2,000 at 8% for 2 years. What is the interest Mrs. Milavec will have to pay?
Answer:
$320.00
Step-by-step explanation:
Blanca creates decorative wall hangings. She wants to look at the relationship between the diagonal length of the hangings and their weight. The data show a linear pattern with the summary statistics shown below: standard deviation = diagonal length (inches) 7 = 24.1 = 12 y = weight (pounds) y = 12.9 S = 16.2 0.0 Find the equation of the least-squares regression line for predicting the weight of the wall hanging from its diagonal length. Round your entries to the nearest hundredth
Answer: y=-16.38+1.22x
Step-by-step explanation:
Answer:y=-16.38+1.22x
Step-by-step explanation:
Three students have started a fence-painting business. Working together, Pragnesh and Qazi can paint the fence in 2 hours. Similarly, Pragnesh and Ronghui can paint the fence in 3 hours when they work together. Finally, when Qazi and Ronghui work together, they can paint the fence in 4 hours. How long would it take if all three students worked together to paint the fence
Answer: 55.4 mins
Step-by-step explanation:
pragnesh and qazi = 2hrs
pragnesh and roghui = 3hrs
qazi and roghui = 4hrs
this means for every 1 hour they wold paint.
pragnesh and qazi = [tex]\frac{1}{2}[/tex] half of the fence
pragnesh and roghui = [tex]\frac{1}{3}[/tex]
qazi and roghui = [tex]\frac{1}{4}[/tex] quarter of the fence
time taken when they all work together
= [tex]\frac{1}{2}[/tex] + [tex]\frac{1}{3}[/tex] + [tex]\frac{1}{4}[/tex]
= [tex]\frac{13}{12}[/tex]
= [tex]\frac{12}{13}[/tex]
= 0.9231 × 60(mins)
= 55.4 mins
A recipe says, "1 part cocoa to 4 parts sugar." How much sugar will you need if you use 20 grams of cocoa?
Answer:
80
Step-by-step explanation:
1 part of cocoa to 4 parts of sugar means every one part of cocoa is timed by four parts sugar so 20 times four is 80.
Write the equation of the line that passes through the points (-3,-8) and (6,-4).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Answer:
The equation in point-slope form is: [tex]\mathbf{y+8= \frac{4}{9}(x+3)}[/tex]
Step-by-step explanation:
Write the equation of the line that passes through the points (-3,-8) and (6,-4)
The point slope form is: [tex]y-y_1=m(x-x_1)[/tex]
Where m is slope and x₁ and y₁ are the points given
Finding Slope
Slope can be found of given points using formula: [tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]
We have [tex]x_1=-3, y_1=-8, x_2=6 \ and \ y_2=-4[/tex]
Putting values and finding slope
[tex]Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-4-(-8)}{6-(-3)}\\Slope=\frac{-4+8}{6+3}\\Slope=\frac{4}{9}[/tex]
So, slope m = 4/9
Using point (-3,-8) and slope m = 4/9 the equation is:
[tex]y-y_1=m(x-x_1)\\y-(-8)=\frac{4}{9}(x-(-3))\\y+8= \frac{4}{9}(x+3)\\[/tex]
So, the equation in point-slope form is: [tex]\mathbf{y+8= \frac{4}{9}(x+3)}[/tex]
WILL MARK BRAINLIEST please help geometry problem in the picture
Answer:
I think its c im rlly sorry if im wrong
Step-by-step explanation:
Im trying to get to vituoso :3
what is approximately equal to
[tex] \sqrt{47} [/tex]
A: 40
B: 7
C: 16
D: 9.4
Answer:
d
Step-by-step explanation:
d