A car increases, then decreases, its speed. Which table could represent the speed of the car?
A. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 43, 41, 42, 43.
B. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 47, 49, 48, 47.
C. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 45, 45, 43, 41.
D. A 2-column table with 5 rows. The first column is labeled time (minutes) with entries 5, 6, 7, 8, 9. The second column is labeled speed (miles per hour) with entries 45, 43, 41, 41, 41.
plz help me i'm begging will give brainliest
Answer:
B is answer
Step-by-step explanation:
The pH level, P, of a liquid can be determined from the hydronium ion (H3O+) concentration, c, using the equation P = –log(c). If the pH level of grape juice is 3.3, what is the hydronium ion concentration
The equation [tex]P = -\log(c)[/tex] is an illustration of logarithms. The hydronium ion concentration is approximately [tex]0.0005012[/tex]
Given that:
[tex]P = -\log(c)[/tex]
When the pH level is 3.3; it means that:
[tex]P = 3.3[/tex]
So, we have:
[tex]3.3 = -\log(c)[/tex]
Divide both sides by -1
[tex]-3.3 = \log(c)[/tex]
Take antilog of both sides
[tex]10^{-3.3} = c[/tex]
So, we have:
[tex]c = 10^{-3.3}[/tex]
[tex]c = 0.00050118723[/tex]
Approximate
[tex]c = 0.0005012[/tex]
Hence, the hydronium ion concentration is approximately [tex]0.0005012[/tex]
Read more about logarithm at:
https://brainly.com/question/9768941
Answer:
The correct answer would be 5.01 x 10^-4
Explanation:
Not only did I take the test and get it right, BUT, P = -log(c) aka 3.3 = -log(c), c is equal to 0.00050118, and the expanded form of 5.01 x 10^-4 is 0.000501...
122 - 4(6) +1
112p hellllllp
Answer:
99
Step-by-step explanation:
U will do the one outside first
122+1-4(6)
=123-24
= 99
Write the repeating decimal as a fraction.
0.928
To convert the decimal 0.928 to a fraction, just follow these steps:
Step 1: Write down the number as a fraction of one:
0.928 = 0.928
1
Step 2: Multiply both top and bottom by 10 for every number after the decimal point:
As we have 3 numbers after the decimal point, we multiply both numerator and denominator by 1000. So,
0.928
1
= (0.928 × 1000)
(1 × 1000)
= 928
1000
.
Step 3: Simplify (or reduce) the above fraction by dividing both numerator and denominator by the GCD (Greatest Common Divisor) between them. In this case, GCD(928,1000) = 8. So,
(928÷8)
(1000÷8)
= 116
125
when reduced to the simplest form.
Elevate |-2.3| how to do this problem
Answer:
2.3
Step-by-step explanation:
Absolute value means how far away is that number from 0.
-4x+3x=2
Solve linear equation
Answer:
[tex] - 4x + 3x = 2 \\ ( - 4 + 3)x = 2 \\ - x = 2 \\ \boxed{ x = - 2}[/tex]
x = -2 is the right answer.Help will give Brainly points
Answer:
I have no clue
Step-by-step explanation:
Because i would need to know, the entire problem and all the questions sorry i could help more
write 2 16/99 as a fraction
3X-4(2X+1)=5 + 2(3X-1)
Answer:
x = -7/11
Step-by-step explanation:
3x - 4(2x + 1) = 5 + 2(3x - 1)
3x - 8x - 4 = 5 + 6x - 2
-5x - 4 = 3 + 6x
-5x - 4 + 5x = 3 + 6x + 5x
-4 = 3 + 11x
-4 - 3 = 3 + 11x - 3
-7 = 11x
-7/11 = 11x/11
-7/11 = x
Is -2/3 a rational or irrational number?
Is it terminating, repeating, or neither?
is -4 a solution to the equation ?
9514 1404 393
Answer:
No
Step-by-step explanation:
Put the value where the variable is and see if you get a true statement.
2(-4) -8 = -15
-8 -8 = -15 . . . . . . . false
-4 is not a solution to the equation
Answer:
Option B
Step-by-step explanation:
Putting y = -4
2(-4) - 8 = -15
-8 - 8 = -15
-16 ≠ -15
What ratios are equivalent to 4:3
Answer:
here are a few that are equivalent
8:6
28:21
48:36
68:51
Pls help for 27b!!!!!!!
Step-by-step explanation:
[tex] \beta [/tex]
is a root of the quadratic
[tex]4 {x}^{2} - 10x + 5[/tex]
This quadratic isn't factorable so use the quadratic formula
[tex] - b + - \sqrt{ \frac{b {}^{2} - 4ac }{2a} } [/tex]
The plus and minus sign after b means we going to have two roots.
The roots are
[tex] \frac{5 + \sqrt{5} }{4} [/tex]
and
[tex] \frac{5 - \sqrt{5} }{4} [/tex]
We subsitue those values for Beta.
27a.
[tex] \frac{5}{2} [/tex]
27b.
25
0.17x0.4 helpppppppp
Answer:
The answer is 0.068.
Step-by-step explanation:
0.17 x 0.4 is 0.068
What is the solution to this equation?
4(4x + 1) = 3x - 46 - x) + 8
Answer: Hello There!................
x=-3.5
Step-by-step explanation:
Mark me brainest please. Hope this helps. Anna ♥
suppose the velocity of a particle traveling along the x-axis is given by v(t)= 3t^2+8t+15 m/s at time t seconds. The particle is initially located 5 meters left of the origin. How far does the particle travel from t=2 seconds to t=3 seconds? After 3 seconds, where is the particle with respect to the origin?
Answer:
Step-by-step explanation:
1) How far does the particle travel from t=2 seconds to t=3 seconds?
[tex]\int\limits^3_2 {(3t^2+8t+15)} \, dt =\Bigg [ t^3+4t^2+15t\Bigg]^3_2\\\\=27+36+45-(8+16+30)\\\\=108-54\\\\=54 (m)\\\\[/tex]
2)
[tex]\int\limits^3_0 {(3t^2+8t+15)} \, dt =\Bigg [ t^3+4t^2+15t\Bigg]^3_2=108\\\\[/tex]
After 3 seconds, where is the particle with respect to the origin?
108-5=103 (m)
what is some work for 34.1 divided by 5.5
Answer:
6.2
Step-by-step explanation:
The first step is to write the question out as you would normally, to divide two whole numbers.
5.5⟌34.1 (the bar should go all the way across but I can't do that here)
06.2
5.5⟌34.1
-33
11
5.5 does not go into 3, so we move over a place and see how many times it goes into 34.
6x5.5 is 33, so that's close enough.
We subtract 33 from 34 to get 1, and then bring the decimal point up to the answer.
11/5.5 is 2, but it's actually .2 because we brought the decimal point up.
Write 2 1/4 miles in 3/4 hour as a unit rate.
6 3/4 per hour or, in an hour
2 1/4 miles in 3/4 of an hour
2 1/4 miles = 9/4 miles in 1/3 of hour
9/4 miles divided by 1/3 hr
9/4 ÷ 1/3
Remember: Keep, Change Flip
9/4 x 3/1 = 27/4
Simplify:
27/4 = 6 3/4
So,
6 3/4 in one hour
I hope this helps!
9) Audrey works in a factory. She receives a salary of $8 per hour and piecework pay of 12 cents per unit produced. Last week she worked 38 hours and produced 755 units. a) What was her piecework pay? b) What was her total hourly pay for the week? c) What was her total pay for the week? d) What would her total weekly salary have been if she produced 755 units ?
Answer:
(a) Piece work pay is $90.6. (b) Hourly pay for the week is $304 (c) Total Pay for the week is $394.6
Step-by-step explanation:
Given,
Audrey receives a salary of $8 per hour.
Piecework pay is 12 cents per unit.
Solve,
Part (a)
[tex]\begin{aligned}\rm{Audrey\; piece\;of \;work\; per\; unit}&=\$\dfrac{12}{100}\\&=\$0.12\end{aligned}[/tex]
Now,
The number of units produced by her in last week is 755 units.
Therefore,
[tex]\begin{aligned}\rm{Piece\;work\;pay}&=\rm{Total\;unit\;produced} \times \rm{pay\;per\;unit}\\&=755 \times 0.12\\&=\bold{\$90.6}\end{aligned}[/tex]
Part (b)
Audrey's hourly pay is $8.
She worked 38 hours last week.
Therefore,
[tex]\begin{aligned}\rm{Audrey's\;hourly\;pay\;for\;the\;week}&= \rm{Total\;time\;spend\;for\;the\;work }\times \rm{Hourly\;Pay}\\&=38 \times 8\\&=\bold{\$304}\end{aligned}[/tex]
Part (c)
Audrey's piecework pay for the week was $90.6 {This can be concluded from part (a)}.
Audrey's hourly pay for the week was $304 {This can be concluded from part (b)}.
Total pay for the week = Audrey's piecework pay for the week + Audrey's hourly pay for the week
Total pay for the week = $90.6+$304
=$394.6
Part (d)
Audrey's piecework pay for the week was $90.6 when she produced 755 units.
Now, as per production, the pay will be $90.6 but for evaluating the total weekly salary, it is important to know about the time spend by Audrey to execute the whole work.
To know more about it please refer to the below link:
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the set of integers between -5 and -9
Answer:
-6, -7, and -8
Step-by-step explanation:
Pretty simple, just count to the negatives.
The difference between nine and a number is seven. Find a number.
hi <3
call your unknown variable 'x' and form an equation
9 - x = 7
subtract 9 from both sides
-x = -2
divide both sides by -1 to get your answer of:
x = 2
hope this helps :)
9-x=7
9-2=7
x=2
I hope this helps
Can someone please help
Answer:
The last one, x - 4y = -4
..
n!
Use:
n 'k k!(n-k)!
to solve the combination.
After a band parent meeting, each of
the ten members shook hands with
each other once. How many
handshakes were there in all?
Hint: Remember that one handshake involves
two people.
[?] handshakes
Martín has 5 inches of yarn to use in a craft project. How many 1/4 inch pieces can he make from the yarn?
Answer:
1.8 inches
Step-by-step explanation:
SOMEONE PLSSSS HELP MEEE
Answer:
option a is correct
Step-by-step explanation:
by dividing the speed of cat with 1000 we get the speed of snail.
Which statement compares the two numbers correctly?
0.799 ________ 0.8
a 0.799 > 0.8
b 0.799 = 0.8
c 0.799 < 0.8
d 0.8 < 0.799
Answer:
c 0.799 < 0.8.
Not sure!!Find the mid point of points A (-8, -8) and B (-1, -3) graphically
its deltamath
-4.5,-5.5
Step-by-step explanation:
-8-1/2 , -8-3/2
=-4.5 , -5.5 (midpoint)
Find a if the two polynomials ax³ + 3x² - 9 and 2x³ + 4x + 9, leaves the same remainder when divided by x + 3
Answer:
a = 25/9
Step-by-step explanation:
the remainder when divided by x+3 is just f(-3) so, we have
-27a + 27 -9 = -54 - 12 + 9
30 K +70 equals 20 K +80 what is the value of K
30k + 70 = 20k + 80
30k - 20k = 80 - 70
10k = 10 / : 10
k = 1
Between what two consecutive integers would the square root of 40 fall?
A. 5 and 6
B 6 and 7
C 7 and 8
D 36 and 49
[tex]\sqrt{40}=\sqrt{2\cdot2^2\cdot5}=2\sqrt{10}[/tex]
Notice that [tex]\sqrt{10}\approx3.2[/tex] which means [tex]\sqrt{40}\approx2\cdot3.2\approx6.4[/tex].
So answer is B.
Hope this helps :)
