Answers
Answer:
D
Step-by-step explanation:
it is D because you always want x to be a lone fraction and that would be the first step im 99% sure unless someone can correct me :)
Answer:
d) subtract 15 from both sides
Step-by-step explanation:
Process of elimination:
a) 2.5 and x are being multiplied, not subtracted, so (a) is wrong right off the bat.
b) you may divide 2.5 by both sides, but you want to get "x" on one side first. So you would do (b) first either.
c) to get rid of 15, which we need to somehow, we need to do the opposite operation than the one in the equation. 15 is +15, not negative, and so you would need to subtract to get rid of 15. This is why (c) is also wrong.
That leaves us, with (d), because you need to subtract 15 to isolate "x".
Related Questions
Sound intensity, in decibels, d, can be written using a comparison factor, x, that compares sound intensity to the standard threshold of hearing. d = 10log(x) A sensor measures the sound intensity, in decibels, of an office over time. The decibel reading was consistently above 50, but never above 70. On what interval is the factor by which the office noise is related to the standard threshold of hearing? (17, 18.5) (17, 18.5] (100,000, 10,000,000] (100,000, 10,000,000)
Answers
Answer: (100,000, 10,000,000]
Step-by-step explanation:
The interval is given by ( 100,000 , 10,000,000], the correct option is C.
What is the Threshold Value ?The threshold value is the minimum value above which the desired results can be expected.
The decibel reading was consistently above 50, but never above 70.
d = 10log(x)
50 = 10log(x)
5 = log x
10⁵ = x
x > 10⁵
d = 10log(x)
70 = 10log(x)
x = 10⁷
From the given data
x ≤ 10⁷
Therefore, the interval is given by ( 100,000 , 10,000,000], the correct option is C.
To know more about Threshold value
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Anyone no what this means if so please comment the quarter is ending today and I got a few hours to do my missing work
Answers
Answer:
6, 7
Step-by-step explanation:
Select the correct expressions in the table.
Which expressions are equivalent to the given expression?
(-V9 + V-4) - (2V576 + V-64)
-3 + 2i – 2(24) - 8i
-51 + 61
-3 + 2i + 2(24) + 8i
45 + 10i
:-3 – 2i - 2(24) + si
-51 – 6i
Answers
An expression is defined as a set of numbers, variables, and mathematical operations. The expressions that are equivalent to the given expression is -3+2i - 2(24) - 8i and -51 - 6i.
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The given expression can be simplified as,
(-√9 + √-4) - (2√576 + √-64)
= (-3+2i) - 2(24) - 8i
= -3+2i - 2(24) - 8i
= -3 + 2i - 42 - 8i
= -51 - 6i
Hence, the expressions that are equivalent to the given expression is -3+2i - 2(24) - 8i and -51 - 6i.
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Answers
Answer:
No
Step-by-step explanation:
Answer: Yes, but can you look on my page and answer the questions ??
Step-by-step explanation:
What is the value of x?
Answers
Answer:
8 degrees
Step-by-step explanation:
Mark me the brainliest and rate me please
Answer:
8°
Step-by-step explanation:
help its due in an hour and i cant solve this
Answers
Answer: D
Explanation: y = 5x + 8
PLz mark brainliest:)
PLEASE I NEEEEED HELP ILL G”IVE BRAINLISET
Answers
Answer:
The first One
Step-by-step explanation:
Hope This Helps!
Plz Mark Brainliest!
write the equation of a porabola whose vertex is (2,5) and passes through the point (1, 1)
Answers
Answer:
y=5-4(x-2)^2
Step-by-step explanation:
A computer downloads a movie at a constant rate. What does the slope represent?
Answers
Answer:
hope it helps you
Step-by-step explanation:
A computer downloads a movie at a constant rate. What does the slope represent? 2000
Download (megabytes)
000-
400
Time (min)
CLEAR
CHECK
Number of minutes for download completion
Downloading speed in megabytes per minute
Unit rate of minutes per megabyte
Unit rate of megabytes per movie
Answer:
Downloading speed in megabytes per minute
Step-by-step explanation:
did on ttm
what are factors of x^2+x-20
Answers
Ans: (x - 4)( x + 5)
Explanation:
Find 2 numbers knowing sum (1) and product (-20).
To find them, factor pairs of (-20) --> (-2, 10)(-4, 5). This sum is 1 = b.
Then, these 2 numbers are: -4 and 5.
y = (x - 4)(x + 5)
hi there! the answer is...
(x − 4) (x + 5)
hope this helped. have a good one!
Just please help me Solve for h 2x+y=rh
Answers
Answer:
[tex]h = \frac{2x+y}{r}[/tex]
please help i don’t know how to find the slope
Answers
M= slope
B= y-intercept
You replace the m and b with the info given to you in the problem.
Answer: y = -3/4x -6
Write the equation of a line perpendicular to 5x+3y=9 and passes through the point (-10,4).
Answers
y=3/5x+10
Explanation:
first convert to slope intercept form y=mx+b, 5x+3y=9 that will be y=-5/3x+3, to be perpendicular, the slope has to be an opposite reciprocal so -5/3x has to be 3/5x, then pass through the point (-10,4), the equation will be y=3/5x+10
Answer:
y=3/5x+10
Step-by-step explanation:
Explanation:
first convert to slope intercept form y=mx+b, 5x+3y=9 that will be y=-5/3x+3, to be perpendicular, the slope has to be an opposite reciprocal so -5/3x has to be 3/5x, then pass through the point (-10,4), the equation will be y=3/5x+10
1242 miles in 24 hours is miles per hour
Answers
Answer: 51.75 mph
Step 1: Divide 1242 by 24 to get your answer, because there are 24 hours in a day.
1242 ÷ 24 = 51.75
Add the mph sign to the answer.
51.75 mph.
Hope this helps you!
Which equation shows the relationship in
the table?
2
5
10
40
100 | 200
Weeks (x)
Trees Planted (y)
A y = 2x
B y = 2x + 40
C y = 20x
Dy = 40x
Answers
Answer:
It’s y=20x I think.
Step-by-step explanation:
If w = -3 and v = -6, what is the value of -w - (-v )?
Answers
Answer:
-3
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
w - (-v)
-3 - (-6)
3
Hope this helps!
the question is in the file
Answers
Answer:
0.00024
Step-by-step explanation:
= 2.4 × 10-4
(scientific notation)
= 2.4e-4
(scientific e notation)
= 240 × 10-6
(engineering notation)
(millionth; prefix micro- (u))
= 0.00024
(real number)
In the standard (x, y) coordiante plane, what is the slope of the line joining the points (0, 0) & (-8 , 2)?
Answers
Answer:
-1/4
Step-by-step explanation:
The slope is -1/4
to solve you subtract the x-values and the y-values and remember that slope is y/x
Hope that helps and have a great day!
"How long do people spend traveling to work? The answer may depend on where they live. Here are the
travel times in minutes for 15 workers in North Carolina, chosen at random by the Census Bureau:7
30
20
10
40
25
20
10
60
15
40
on
30
12
10
101
(Source: Strive for A5: Preparing for the AP Statistics Examinations)
6.) For the data above, create the 5-number summary, check for any outliers
using the 1.5 * IQR rule.
Answers
Answer:
Step-by-step explanation:
1
The number written 3.76ee13 in scientific notation
Answers
Answer:
yes also what is the question
Help me please math is so hard!
Answers
Answer:
34
Step-by-step explanation:
the angle is a right angle meaning the sum of each angle equals 90. 90-56=34
Answer:
angle 2 is 34 degrees
Step-by-step explanation:
the blue square inicates the the two different angles totals 90 degrees. Since you know one of the angles is 56 you can subtract it from 90.
90-56=34
subtract. write your answer in scientific notation.
(7.15×105)–(5.964×105)
Answers
Answer:
124.53
Step-by-step explanation:
7.15×105=750.75
5.964×105=626.22
750.75-626.22= 124.53
lmk if this is right or not :)
Answer with step-by-step explanation:
(7.15 × 105) - (5.964 × 105) = 124.53
750.75 - 626.22 = 124.53
Hope this helped! (brainliest please)
Please help, the problem is bellow
Answers
8.3E+2 using scientific notation
Answers
Answer:
8.3*10^2
Step-by-step explanation:
The e just equals 10.
Did this help?
Answer: 0.083
Step-by-step explanation:
if f(x) = 5x-12, what is f(2) ?
Answers
Answer:
-2
Step-by-step explanation:
5(2)-12
10-12
+-2
Answer:
-2
Step-by-step explanation:
[tex]f(2) = 5(2) - 12 = - 2[/tex]
I think this is the right answer
Solve the proportion
8/12=20/n
Answers
Answer:
n=30
Step-by-step explanation:
I can’t figure this out please help ASAP :)
Answers
The area is 9 sq. units
Answer:
9 sq units
Step-by-step explanation:
triangle formula is 1/2B*H
f(x) = 3x + 10, g(x) = x - 2, Find g(f(x))
Answers
Answer with step-by-step explanation:
If g(x) = x - 2, then g(f(x)) = f(x) - 2. So the whole equation would be: 3x + 10 × x - 2. Simplified: g(f(x)) = 13x - 2
Hope this helped!
The composite function g(f(x)) = 3x + 8 if the f(x) = 3x + 10, g(x) = x - 2 after applying the concept of the composite function.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
It is given that:
f(x) = 3x + 10
g(x) = x - 2
It is required to find the g(f(x))
g(f(x)) representing the composite function:
Plug f(x) = 3x + 10
In the function g(x):
g(f(x)) = (3x + 10) - 2
g(f(x)) = 3x + 8
Thus, the composite function g(f(x)) = 3x + 8 if the f(x) = 3x + 10, g(x) = x - 2 after applying the concept of the composite function.
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Which algebraic expression represents the perimeter of the rectangle?
2x + 2
4x + 3
Answers
Answer:
12x + 10
Step-by-step explanation:
Combine the like terms. 4x + 2x and 2 + 3. Parallel sides, 6x times 2 which is 12x. 5 times 2 which is 10. Therefore, your answer is 12x + 10
Ax + 4y = 2, (3, -1) : Find A
Answers
Answer:
Step-by-step explanation:
we can subsitiute 3 and -1 for x and y respectively to get 3A - 4 = 2. After this you add 4 to both sides and get 3A = 6. divide by 3 and you get a = 2
