Answer:
5.428571
Step-by-step explanation:
[tex]5\frac{3}{7}[/tex]
take the fraction and divide that:
[tex]\frac{3}{7} =0.428571[/tex]
then just add 5:
5 + 0.428571 = 5.428571
or...
convert the mixed fraction to improper fraction:
[tex]5\frac{3}{7} = \frac{38}{7}[/tex]
divide like normal:
[tex]\frac{38}{7} = 5.428571[/tex]
Chemists use pH as a measure of acidity or alkalinity of a solution. It uses the concentration of hydrogen ions H+ in a logarithmic function. A chemist is studying the alkalinity of a hot spring near a volcano. The hydrogen ion concentration is increasing according to the function f(d) = (0.5 × 10–4)d, where d is the number of days. The function for pH is g(H+) = –log10(H+), where H+ is the hydrogen ion concentration of the solution. Which function shows the pH of the hot spring as a function of d? g(f(d)) = –log10(d) g(f(d)) = –d(log10(0.5 × 10–4)) g(f(d)) = –log10((0.5 × 10–4)d) g(f(d)) = –log10(d × 10–4)
Answer:
[tex]g(f(d)) = -dlog_{10}(0.5 * 10^{-4})[/tex]
Step-by-step explanation:
Given
[tex]f(d) = (0.5 * 10^{-4})^d[/tex]
[tex]g(H+) = -log_{10}(H+)[/tex]
Required
Find the composite function g(f(d))
We have:
[tex]g(H+) = -log_{10}(H+)[/tex]
Substitute f(d) for H+
[tex]g(f(d)) = -log_{10}(f(d))[/tex]
Substitute [tex]f(d) = (0.5 * 10^{-4})^d[/tex]
[tex]g(f(d)) = -log_{10}((0.5 * 10^{-4})^d)[/tex]
Apply law of logarithm
[tex]g(f(d)) = -dlog_{10}(0.5 * 10^{-4})[/tex]
Hence, the function is:
[tex]g(f(d)) = -dlog_{10}(0.5 * 10^{-4})[/tex]
Answer:
It's C
Step-by-step explanation:
Monthly grocery cost based on the average number of shopping trips is predicted using the least-square regression line, ŷ = 275.3 + 90.7x, where ŷ represents the predicted monthly expense and x represents the average number of trips. A shopper visits the grocery store an average of 3.2 times and has a monthly cost of $520. What is the residual for the shopper?
45.54
76.47
−45.54
−76.47
90.7
Answer:
−45.54
Step-by-step explanation:
Just took the test
The residual for the shopper will be equal to -45.54. Hence, option C is correct.
What is an equation?Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.
This relationship is illustrated by the left and right expressions being equal. The left-hand side equals the right-hand side is a basic, straightforward equation.
As per the given data provided in the question,
The given equation is,
y = 275.3 + 90.7 x
Here, x is the number of trips and y is the total monthly expense.
Then,
Shopper monthly cost = $520
Number of visits by the shopper in a month = 3.2
So, the residual for the shopper will be,
$520 = 275.3 + 90.7 (3.2)
$520 = 275.3 + 290.24
= -45.54
To know more about equation:
https://brainly.com/question/29657983
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Solve for x.
6x - 4(3x – 5) = 2
o
11
X =
B. x = 3
o
C. X=-3
__11
Answer:
c x=3
Step-by-step explanation:
I did the math for it
what is the coefficient of -16y + 24
Answer: -16
Step-by-step explanation:
This enraged Hitlers Father who punished him severely
Answer:
lol.
cool.
I don't really care if you give me brain or not but I would love it if you did.
Step-by-step explanation:
Leon created a scale drawing of the school library in his art class. In the scale drawing, the length of the library is 7 inches. The length of the actual library is 56 feet.
Which scale did Leon use to create the scale drawing of the school library?
8 inches represents 1 feet
1 inch represents 8 feet
7 inches represents 1 foot
1 inch represents 7 feet
A. 18
3. Letter Z is 26 in base ten; decode Z in binary scale
A. 11010 B. 00101 C. 101010 D. 11101
Answer:
as I think the correct answer is A 11010
Hope it is right!
Find the VOLUME of the rectangular prism below.
Volume =
cubic cm
21 cm
12 cm
38 cm
NEED THIS ASAP
For what value of q is the equation – 13(q + 4) =7q + 16 true?
Answer:
3.4
Step-by-step explanation:
Can someone please help me figure this out?
Add. (6x2 – 2x) + (5x – 7)
Answer:
Thats going to be 12x
Step-by-step explanation:
(1)/(31)x^(2)-25=0
a) {+5}
b) {+30}
c) {+6/5}
d) {+5/6}
Answer:
B
Step-by-step explanation:
Please Mark me brainly
hope this help
If p(t)=3t2–2t+15, use synthetic division to find p(3).
Answer:
27
Step-by-step explanation:
jus plugged in 3 into all the variables
plz help i need some one to check if this is right :(
Answer:
no the one above it
Step-by-step explanation:
because i have had it recently
Fractions equivalent to 1:2
Please don’t be bots that post it in a link
Answer:
1/2 or .5 or 1:2
Step-by-step explanation:
hii please help i’ll give brainliest!!
answer is D because statement mentions about evelyn applying brake to stop the car.
brainliest
Plz help me with this
Which of the following months would be the darkest at the South Pole?
February
December
January
August
Answer:
February
Step-by-step explanation:
February would be the darkest at the South Pole. In the month of February, the temperature raises to -38 to -51 degrees over south pole.
How do you work out the circumference of this circle step by step?
Answer:
It says c = πd
The circumference is π X d (diameter)
on the image the diameter shown on the circle is 14cm
π = 3.14
3.14 X 14cm = 43.96cm
i need this done today whoever gets it correct gets brainliest!! PLZZZ HELPPP MEEE
Answer:
B is twice the size of A, so the ratio would be 2:1.
Step-by-step explanation:
A right cylindrical container can hold 96π cubic meters of liquid when full. The height of the container is 6 meters what is the radius, r, of the container?
A. 4 m
B. 5 m
C. 2 m
D. 6 m
Answer:
A. 4 m
Step-by-step explanation:
The formula for the volume of a cylinder is πr^2 x h
r = radius h = height
So, with this you can reverse it to find the radius since you know the height.
96π/6 = 16π
√16π = 4π
radius = 4 m
Answer:
A. 4m
Step-by-step explanation:
your welcome
I need help with this!!! Someone help!!
Step-by-step explanation:
This would be the point of intersection.
If you are not given the graph, make the equations equal since they are both y = ____.
x + 3 = x - 1
-3 -3
x = x - 4
-x -x
-2x = -4
/-2 /-2
x = 2
So the answer would be D) (2,1)
A = 6x – 2
B = 4x + 48
Answer:
X=25
angle A=148
Step-by-step explanation:
since they are alternating angles
A=B
6x-2=4X+48
solve for X
6x-4x=48+2
2x=50
X=25
angle A= 148
Answer:
148
Step-by-step explanation:
I got it right on khan
Which could be the measures of the interior angles of a triangle?
A. 50°, 45°, 45°
B. 60°, 60°, 60°
C. 70°, 70°, 70°
D. 80°, 55°, 25°
Answer:
B. 60°, 60°, 60°
Step-by-step explanation:
All triangle angles add up to 180
A) NOPE
50 + 45 + 45 = 140
B) YUP
60 + 60 + 60 = 180
C) NOPE
70 + 70 + 70 = 210
D) NOPE
80 + 55 + 25 = 160
=
Teresa works mowing lawns and babysitting. She earns $8.60 an hour for mowing and $8.10 an hour for babysitting. How much will she earn for 7 hours of
mowing and 1 hour of babysitting?
Answer: 68.3
Step-by-step explanation: 8.60x7+8.10=68.3
plz help me I only have 5 minutes left winner gets brainliest
In what year did the Apartheid Laws in South Africa end?
1990
1972
1994
1958
Answer:1994.
Step-by-step explanation:I need brainliest I helped with your other questions in comments pls
Why do owls get invited to parties
Answer:
because theyre a hoot??
im probably wrong XD
owls apparently get invited to parties by their owners
2^5/4 = 2^5/2^a = 2^b = c
A=____ B=____ C=___
(EDIT) The answer is A= 2 B= 3, and C = 8
Answer:
a=2, b=3, c=8
Step-by-step explanation:
4=2^2
5-2=3
2^3=2*2*2=8
Guys do not trust this account it gives you a virus
yeah he tried to get me to the link, it flagged it before I even got to the site
Find the missing side length.
Assume that all intersecting sides meet at right angles.
Be sure to include the correct unit in your answer.
16 ft
10 ft
14 ft
9 ft
6 ft
Answer:
5 ft
Step-by-step explanation:
Interesting puzzle!! I can arrange two conditions from this set of 5 numbers to form a polygon that all intersecting sides meet at right angles (switch 10 ft and 6 ft position), but it yields same result.