Answer:
m = 6.57 and n = -2
Step-by-step explanation:
To answer this question, one will have to covert the thickness of a dollar to standard notation and then compare the two values.
4.3 × 10-3 = 4.3/1000
= 0.0043
Now, compare
0.07 =compared to 0.0043
0.07- 0.0043
= 0.0657
0.0657 = 6.57 x 10^-2
A quarter is thicker than a dollar by 6.57 x 10^-2..... 1
m × 10n........ 2
Comparing 1 and 2
m = 6.57 and n = -2
Help ASAP please .
Which expression represents the volume of the sphere,
in cubic units?
3/4pi(6)^2
4/3pi(6)^3
3/4pi(12)^2
4/3pi(12)^3
Answer:
second option
Step-by-step explanation:
The volume (V) of a sphere is calculated as
V = [tex]\frac{4}{3}[/tex] πr³ ( where r is the radius )
Here r = 6 , thus
V = [tex]\frac{4}{3}[/tex]π(6)³
Answer:
Second option
Step-by-step explanation:
Volume of a sphere = [tex]\frac{4}{3}*\pi *r^{3}[/tex]
→ Substitute in the value of radius
Volume of a sphere = [tex]\frac{4}{3}*\pi *6^{3}[/tex]
The graph of f(x) =7x is reflected across the x-axis. write a function g(x) to describe the new graph. G(x)=___
To reflect a function across the x axis, we just stick a negative in front. This will make all point's y coordinates to go from positive to negative or vice versa. If the original function already has a negative out front, then remove it.
What is -110=-5(1+7v)
Answer:
v=3
Step-by-step explanation:
First you must use the distributive property to solve for v. To do this multiply ever term in the parentheses by -5 on the right-hand side to get -110=-5-35v
Now you can solve by adding 5 to both sides, cancelling out the -5 on the right-hand side of the equation and getting -105=-35v. Now, all you have to do is divide both sides by -35 and get 3=v.
Answer:
v = 3
Step-by-step explanation:
-110 = -5(1 + 7v)
-110 = -5 + -35v
-110 + 5 = -35v
-105 = -35v
Divide both sides of the equation by -35 so v can stand alone
[tex]\frac{-105}{-35} = \frac{-35v}{-35}[/tex]
3 = v
∴v = 3
Let b be a number such that (2b+5)(b-1)=6b. What is the largest possible value of b? Express your answer as a common fraction.
Answer:
Foil the expression and solve the derivative with respect to b at f'(x)=0[tex]2b^2+3b+5=6b\\d/dx(2b^2+9b+5=0)\\4b+9=0\\b=-9/4[/tex]
Step-by-step explanation:
The sum of three numbers is 180. If the first number is (2 x minus 11), and the second is (x minus 4) which expression represents the third number? 165 minus 3 x 187 minus x 195 minus x 195 minus 3 x
Answer:
The third number is 195-3x
Step-by-step explanation:
Given:
sum of three numbers, a, b, c is 180.
a=2x-11
b=x-4
c= ?
Solution:
a+b+c = 180
2x-11 + x-4 + c = 180
c = 180 - (2x-11) - (x-4)
= 180 -2x+11 - x+4
= 180 + 11 + 4 -2x -x
= 195 -3x
Answer:
D
Step-by-step explanation:
Helppp!!!! please!!!
Answer:
A. Net
Step-by-step explanation:
Answer:
a. net
Step-by-step explanation:
The net of a 3D shape is how it looks unfolded. A net can easily be put back together.
Hope this helps! :)
Find the common ratio of the geometric sequence 8,2,1/2
Answer:1/4
Step-by-step explanation:
Each term is multiplied by 1/4 to get to the next
Therefore 1/4 is the common ratio
Two events, X and Y, are independent of each other. P(Y)= and P(X and Y)=. What is P(X) written as a decimal? Round to the nearest tenth, if necessary. 0.2 0.3 0.4 0.5
Answer:
0.4
Step-by-step explanation:
The question is not complete, the correct question is:
Two events, X and Y, are independent of each other. P(Y) = 5/6 and P(X and Y) = 1/3. What is P(X) written as a decimal? Round to the nearest tenth, if necessary
Answer: Two events (event X and event Y) are said to be independent if the probability of event X occurring does not affect the probability of event Y occurring and vice versa. If the probability of X = P(X) and the probability of Y = P(Y), therefore P(X and Y) = P(X) × P(Y).
Given that P(Y) = 5/6 and P(X and Y) = 1/3. Therefore:
P(X and Y) = P(X) × P(Y)
Making P(X) the subject of formula by dividing through by P(Y) gives:
[tex]P(X)=\frac{P(X\ and\ Y)}{P(Y)} \\Substituting\ values:\\P(X)=\frac{\frac{1}{3} }{\frac{5}{6} }=\frac{1}{3} *\frac{6}{5}=\frac{2}{5}=0.4\\ P(X)=0.4[/tex]
Answer:
0.4
Step-by-step explanation:
edg 2021
Circle A has radius 5, and Circle B has radius 2. If CD = 12 and is a common
tangent, what is AB?
Answer:
[tex]3\sqrt{17}$ or \approx 12.37$ Units[/tex]
Step-by-step explanation:
In the attached diagram
CA=CO+OA
CO=DB
Therefore:
5=2+OA
OA=3 Units
The angle between a tangent line and a radius is 90 degrees. therefore triangle OAB is a right triangle with:
OB=12 units
OA=3 units
Using Pythagoras theorem
[tex]AB=\sqrt{3^2+12^2}\\ =\sqrt{153}\\=3\sqrt{17}$ or \approx 12.37$ Units[/tex]
h(x)=1/8x^3-x^2 What is the average rate of change of h over the interval -2≤x≤2?
Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
The average rate of change of h(x) in the closed interval [ a, b ] is
[tex]\frac{h(b)-h(a)}{b-a}[/tex]
Here [ a , b ] = (- 2, 2 ] , thus
h(b) = h(2) = [tex]\frac{1}{8}[/tex] (2)³ - 2² = 1 - 4 = - 3
h(a) = h(- 2) = [tex]\frac{1}{8}[/tex] (- 2)³ - (- 2)² = - 1 - 4 = - 5 , thus
average rate of change = [tex]\frac{-3-(-5)}{2-(-2)}[/tex] = [tex]\frac{2}{4}[/tex] = [tex]\frac{1}{2}[/tex]
Help me find the slope
X___Y
2 75
4 105
6 135
8 165
Y intercept is_____
Please answer this in two minutes
Explanation:
Triangles HIG and FED are similar triangles. We know this because we have two pairs of angles that are congruent (angle G = angle D; angle I = angle E). Use the AA (angle angle) similarity theorem.
Since angles G and D are congruent, computing sin(D) is equivalent to finding sin(G)
sin(angle) = opposite/hypotenuse
sin(G) = IH/HG
sin(G) = 77/85
sin(D) = 77/85
The Vance family is saving money to buy a new car that costs $12,000. They plan to save $715 per month (m), and they have already saved $645. Which of the following inequalities show the number of months (m) the Vance family could save in order to buy the new car? Select all that apply. A. 715m≥11,355 B. 715m≤11,355 C. 12,000≤715m+645 D. 12,645≤715m
Answer:
C. 12,000≤715m+645
Step-by-step explanation:
You want to have either equal to or more than 12,000
Answecr:
C
Step-by-step explanation:
If HCF (6,x)n = 2 and LCM(6,x) = 60 , Find x^2+3x
Answer:
460Step-by-step explanation:
We know:
LCM(a, b) · HCF(a, b) = a · bWe have:
HCF(6, x) = 2 and LCM(6, x) = 60.
Substitute:
60 · 2 = 6 · x
120 = 6x divide both sides by 6
20 = x → x = 20
Substitute to x² + 3x:
20² + 3(20) = 400 + 60 = 460
Need help solving. Prefer you show each step in solving.
Answer:
AB║CD and AD║BC
Step-by-step explanation:
By the property of a parallelogram,
" Consecutive angles of a parallelogram are supplementary"
In the figure attached,
∠DCB and ∠CDA are the supplementary angles. Therefore ABCD will be a parallelogram.
[Given: m(∠DCB) + m(∠CDA) = 180°]
And the pair of opposite sides of the parallelogram ABCD will be parallel.
AD║BC and AB║CD
I need help please answer quick
Answer:
c/3, the sequence is NOT geometric because 2/3 was added to each term to get the next term.
Step-by-step explanation:
geometric sequences are multiplying, arithmetic sequences are addition.
1/3
1/3+2/3= 1 (or 3/3)
3/3+2/3= 5/3
5/3+2/3= 7/3
this is arithmetic, not geometric
A marble is randomly selected from a bag. The probability of selecting a marble with dots on it is 0.2. The probability of selecting a marble that is both purple and has dots on it is 0.1. What is the probability of selecting a purple marble given that the marble has dots on it? Enter your answer as a decimal in the box.
Answer:
0.5
Step-by-step explanation:
Let D be the event of selecting a marble with dots.
Let P be the event of selecting a purple marble.
The probability of selecting a marble with dots, P(D)=0.2
The probability of selecting a marble that is both purple and has dots, [tex]P(D \cap P)=0.1[/tex]
We want to determine the probability of selecting a purple marble given that the marble has dots on it, P(P|D)
By the definition of conditional probability:
[tex]P(P|D)= \dfrac{P(P \cap D)}{P(D)} \\= \dfrac{0.1}{0.2}\\ =0.5[/tex]
The probability of selecting a purple marble given that the marble has dots on it is 0.5.
What is 25% of 84.
Help ASAP
Answer:
21
Step-by-step explanation:
[tex] \frac{25}{100} \times 84[/tex]
Answer:
21
Step-by-step explanation:
please help meeeeeee!
Answer:
2x^2+x-1/x^2-1
x^2+11x+18/x^2-11x+18
2x^2-5x+3/x^2+4x+3
Step-by-step explanation:
1.2 and 5
5 3/4 divided by 1 1/2
Answer:
[tex] \frac{23}{6} [/tex]Solution,
[tex]5 \frac{3}{4} \div 1 \frac{1}{2} [/tex]
Convert the mixed number to an improper fraction
[tex] \frac{23}{4} \div \frac{3}{2} [/tex]
To divide by a fraction, multiply by the reciprocal of that fraction
[tex] \frac{23}{4} \times \frac{2}{3} [/tex]
Reduce the numbers with the GCF 2
[tex] \frac{23}{2} \times \frac{1}{3} [/tex]
Multiply the fraction
[tex] \frac{23}{6} [/tex]
Hope this helps...
Good luck on your assignment...
A cyclist travels at an average speed of 12 mph for 4 hours. How far did she travel in miles?
Answer:
48 miles.
Step-by-step explanation:
Her average speed was 12 miles per hour. She traveled for 4 hours. We can set up a proportion that shows that she traveled 12 miles over 1 hour, so she traveled x miles over 4 hours.
[tex]\frac{12}{1} =\frac{x}{4}[/tex]
1 * x = 12 * 4
x = 48
So, the cyclist traveled 48 miles.
Hope this helps!
Answer: 48 miles
Explanation: Well obviously if you've been on the road for 4 hours and you're traveling at 12 miles per hour, you end up going 48 miles.
Mathematically speaking we get that
by multiplying 12 × 4 to equal 48.
This 12 represents our rate.
This 4 represents the number of hours or our time.
The 48 represents the 48 miles or our distance we've travelled.
So our rate × time = distance.
This formula is a very popular one in algebra.
A line goes through points (0, 3) and (6, 12). What would be the slope of this line's perpendicular bisector?
Answer:
the slope of the perpendicular bisector is -2/3
Step-by-step explanation:
The slope of the line joining the two points P1(0,3), P2(6,12) is given by
m1 = (y2-y1) / (x2-x1) = (12-3) / (6-0) = 9/6 = 1.5
The slope m2 of a line perpendicular to the previous line is given by
m1*m2 = -1
solving
m2 = -1/m1 = -1/ (3/2) = -2/3
THerefore the slope of the perpendicular bisector is -2/3
Calculate the slope of the line going through A(-4,3) and B(0,6) PLEASE ANSWER
Answer:
6-3/0-(-4)
=3/4
Step-by-step explanation:
Given two points of a line to find the slope, we use the formula.y2-y1/x2-x1 hence the answer above. Our xs are x2=0 x=-4 y2=6 y1=3
In the picture below, which lines are lines of symmetry for the figure?
Answer:
1 and 3
Step-by-step explanation:
The lines 1 and 3 divide the shape into 2 identical parts so they are axes of symmetry
The line of symmetry for the given figure is 1 and 3.
We need to find the line of symmetry for the given figure.
What is the line of symmetry?Line symmetry is a type of symmetry where one-half of the object reflects the other half of the object across the line.
In the given figure we can see line 1 and 3 divides the figure into two halves.
Therefore, the line of symmetry for the given figure is 1 and 3.
To learn more about the line of symmetry visit:
https://brainly.com/question/1597409.
#SPJ2
Selected
QUESTION 17 Of 20
If 15 men dig a trench in 10 days, how many men will be required to dig the trench for 2 days?
Ali picked three numbers out of a hat, the lowest number was 11, the range was 13, the medium was 17, write Ali's numbers in the boxes, from smallest to largest
Answer:
11, 17, 24
Step-by-step explanation:
Given;
Lowest number = 11
The range = 13
Medium = 17
Range = highest number - lowest number
highest number = lowest number + range
Highest number = 11 + 13 = 24
Median number is given as 17
Therefore,
The numbers are;
11, 17, 24
8. Solve for the given variable in the following equations. (4 marks total)
i’m confused on questions C) and D) I put it into Photomath and it came out with a bunch of weird and complicated letters and I’m only in grade 9 so I don’t think that’s the answer.
please solve C) and D) and check if I correctly solved A) and B) THANK YOU
Step-by-step explanation:
cV= π*r²*h
V/π = r²*h
v/(π*r²) = h
d[tex]\frac{x+y}{3}[/tex] = 5
x+y = 15
x = 15-y
help me again pleasee :(
Problem P(x)=x4−3x2+kx−2P(x)=x^4-3x^2+kx-2P(x)=x4−3x2+kx−2P, left parenthesis, x, right parenthesis, equals, x, start superscript, 4, end superscript, minus, 3, x, squared, plus, k, x, minus, 2 where kkkk is an unknown integer. P(x)P(x)P(x)P, left parenthesis, x, right parenthesis divided by (x−2)(x-2)(x−2)left parenthesis, x, minus, 2, right parenthesis has a remainder of 10101010. What is the value of kkkk? K=k=k=
Answer: k = 4
Step-by-step explanation:
For this division, to determine the value of k, use the Remainder Theorem, which states that:
polynomial p(x) = dividend (x-a) * quotient Q(x) + remainder R(x)
Knowing the degree of quotient is
degree of Q = degree of p(x) - degree of (x-a)
For this case, Q(x) is a third degree polynomial.
Using the theorem:
[tex]x^{4}-3x^{2}+kx-2 = (x-2)(ax^{3}+bx^{2}+cx+d) + 10[/tex]
[tex]x^{4}-3x^{2}+kx-2 = ax^{4} + x^{3}(b-2a)+x^{2}(c-2a)+x(d-2c)-2d+10[/tex]
a = 1
b - 2a = 0 ⇒ b = 2
c - 2b = -3 ⇒ c = 1
-2d + 10 = -2 ⇒ d = 6
d - 2c = k ⇒ k = 4
Therefore, k = 4 and Q(x) = [tex]x^{4} -2x^{2} + 4x + 2[/tex]
Plz help urgently ❤️Plz
Answer:
1st fig ans=12x ^2-7x-21.
2nd fig ans
i) ( x-15)(x+2)
ii) 2(x+7)(x-9)
iii) -3x(2x+1)(5x-3)
Hope it will help uh....
Answer:
1C 2 D 3 c
Step-by-step explanation:
1, X^2-13x-30
X^2-15x+2x-30
X(x-15)+2(x-15)
(X+2)(x-15)
2, 2x^+4x-126..... Simplified As
(2x-14)(x+9)
3, -30x^3+3x^2+9x ..... Simplified as
-3x(2x+1)(5x-3)