Answers
Answer:
B.68.......................
Related Questions
Evaluate -(3^-1)(3^-2).
A.-27
B. 27
C.-1/27
D. 7
Answers
= -1(0.33) * (0.11)
= -0.33 * 0.11
= -0.0363
= rounded to C.-1/27 = -0.037
Glad I could help and have a fantastic day!
Also, can you please mark my answer as the brainliest answer?
Thanks.
write an equation parallel to y=-3x-1 and passing through the point (4,-8)
Answers
Answer:
y = -3x + 4
Step-by-step explanation:
y = -3x - 1
a parallel line is going to look identical to the previous equation except for the last number.
for example,
y = -3x + 10
and
y = -3x - 2
are both parallel lines
now, substitute y and x for the points of the coordinate given.
y = -3x - 1
-8 = -3*4 - 1
-8 = -12 - 1
this equation isn't true.
so change the last number to make it true
-8 = -12 + 4
-8 = -8
so, your new equation is
y = -3x + 4
It takes 1 hr for cell A to complete a cell cycle and produce two cells.The cell cycle of cell Brakes 2 hrs.How many more cells would be formed from cell A than from cell B in 6 hrs
Answers
Answer:
6 cells
Step-by-step explanation:
Cell A = 1 hour to complete cycle and produce 2 cells
Number of cycles completed on 6 hours = 6 cycles
Number of cell produced = 2 * number of completed cycles = 2 * 6 = 12 cells
Cell B = 2 hours to complete a cycle ; 2 cells produced per cycle
Number of cells produced after 6 hours :
Number of cycles in 6 hours = 6/2 = 3 cycles
Number of cells produced = 3 * 2 = 6 cells
Difference in cells produced : (12 - 6) = 6 cells
please help me!!! What is the sign of (-2)^4 x (-3)^7
Choose 1 answer:
A) Positive
B) Negative
C) Zero
Answers
Answer:
[tex]( - 2) ^{4} \times ( - 3) ^{7} \\ = 16 \times 27 \\ = positive[/tex]
james is purchasing a new pair of AirPods for $199.99. if the tax rate is 9% how much will he spend?
Answers
Answer:
200.08
Step-by-step explanation:
(Does anyone understand this???)
Answers
Answer:
y=-4x-8
Step-by-step explanation:
use points (0,-8) and (-2,0) and plug into slope formula.
slope formula=(y2-y1)/(x2-x1)
(0-(-8))/(-2-0)=-4
you get y=4x+b
use point (-2,0) to find b
you get y=-4x-8
Write an equation of the line that passes through (3, 2) and is perpendicular to the line y = 1/3x-3
Answers
Answer:
y=1/3x-3
m1=1/3
from,m1m2=-1
1/3m2=-1
m2=-3
again, from
m=(y-y1)/(x-x1)
-3=(y-2)/(x-3)
y-2=-3(x-3)
y-2=-3x+9
y=-3x+9+2
y=-3x+11
Stacia randomly chooses a number from 1 to 10. What is the probability she
chooses a number less than 4?
A. 4/9
B. 1/3
C. 3/10
D. 2/5
Answers
Probability of choosing number less than 4 from number 1 to 10 is equals to [tex]\frac{3}{10}[/tex].
What is probability?" Probability is defined as the mathematical statement which represents the ratio of number of favourable outcomes to the total number of outcomes."
Formula used
Probability = [tex]\frac{Number of favourable outcomes }{Total number of outcomes}[/tex]
According to the question,
Given ,
Numbers from which Stacia randomly chooses a number = 1 to 10
= { 1, 2, ..., 10}
Condition for choosing a number = less than 4
= {1, 2, 3}
Substitute the value in the formula of probability we get,
Probability of choosing a number less than 4 = [tex]\frac{3}{10}[/tex]
Hence, Option(C) is the correct answer.
Learn more about probability here
https://brainly.com/question/11234923
#SPJ2
HELP PLS FOR BRAINLIEST!
The electron and proton of a hydrogen atom are separated, on average, by a distance of about 5.3 x 10^-11 meters. Find the magnitudes of the electric force and the gravitational force that each particle exerts on the other.
And pls show work of how you did it :)
Answers
Answer:
Electric force = 8.20x10⁻⁸ N
Gravitational force = 3.61x10⁻⁴⁷ N
Step-by-step explanation:
1. The electric force can be found using the following equation:
[tex] F_{e} = \frac{Kq_{e}q_{p}}{d^{2}} [/tex]
Where:
K: is the Coulomb's constant = 9x10⁹ N.m²/C²
[tex]q_{p}[/tex]: is the charge of the proton = 1.6x10⁻¹⁹ C
[tex]q_{e}[/tex]: is the charge of the electron = -1.6x10⁻¹⁹ C
d: is the distance = 5.3x10⁻¹¹ m
Hence, the magnitude of the electric force is:
[tex] |F_{e}| = \frac{9\cdot 10^{9} N.m^{2}/C^{2}*(-1.6\cdot 10^{-19} C)*1.6 \cdot 10^{-19} C}{(5.3 \cdot 10^{-11} m)^{2}} = 8.20 \cdot 10^{-8} N [/tex]
2. The gravitational force can be calculated as follows:
[tex] F_{g} = \frac{Gm_{e}m_{p}}{d^{2}} [/tex]
Where:
[tex]m_{e}[/tex]: is the electron's mass = 9.1x10⁻³¹ kg
[tex]m_{p}[/tex]: is the proton's mass = 1.67x10⁻²⁷ kg
G: is the gravitational constant = 6.67x10⁻¹¹ N.m²/kg²
Therefore, the gravitational force is:
[tex] F_{g} = \frac{6.67 \cdot 10^{-11} N.m^{2}/kg^{2}*9.1 \cdot 10^{-31} kg*1.67 \cdot 10^{-27} kg}{(5.3 \cdot 10^{-11} m)^{2}} = 3.61 \cdot 10^{-47} N [/tex]
As we can see, the gravitational force is much less than the electric force.
I hope it helps you!
which of the following is not a function A (2,1),(4,3),(6,5),( 8,7) B (2,1),(4,1),(6,5),(5,4) C (2,1),(4,3),(6,5),(2,7) please help me answer this question
Answers
Answer:
C
Step-by-step explanation:
a function is defined by each x value having only one y value
In option c, a x value of 2 could have a y value of either 1 or 7
what dose absolute value mean
Answers
Answer:
the magnitude of a real number without regard to its sign.
Step-by-step explanation:
Answer:
the magnitude of a real number without regard to its sign
Step-by-step explanation: or something like that
Giving brainlist
Solve for x: x ÷ 7 = 16
Answers
Answer:
x=112
Step-by-step explanation:
[tex]\frac{x}{7} =16[/tex]
x=16*7
x=112
Answer: x = 112
Step-by-step explanation: To solve this equation for x,
I would first change x ÷ 7 to x/7 to make it easier to visualize.
So we have [tex]\frac{x}{7} = 16[/tex].
Since x is being divided by 7, we multiply both sides by 7.
On the left, hat gives us x and on the right, 16 x 7 is 112.
So we have x = 112.
If sin B=0.5 in the triangle shown, what is an expression for AB?
Answers
Answer: 3x square route of 3
Step-by-step explanation:
In the case when the sin B=0.5 in the triangle so the expression for AB is to be considered as the [tex]3x^3[/tex].
What is an expression for AB?Since it is mentioned that sin B=0.5
And, AC = 3x
So AB be like [tex]3x^3[/tex]
hence, In the case when the sin B=0.5 in the triangle so the expression for AB is to be considered as the [tex]3x^3[/tex].
Learn more about triangle here: https://brainly.com/question/24891826
Triangle X Y Z is shown. The length of X Y is 9, the length of Y Z is 19, and the length of X Z is y. Angle X Y Z is 41 degrees. Law of cosines: a2 = b2 + c2 – 2bccos(A) Which equation correctly uses the law of cosines to solve for y? 92 = y2 + 192 – 2(y)(19)cos(41°) y2 = 92 + 192 – 2(y)(19)cos(41°) 92 = y2 + 192 – 2(9)(19)cos(41°) y2 = 92 + 192 – 2(9)(19)cos(41°)
Answers
Answer:
y² = 9² + 19² - 2(9)(19)Cos (41°)
Step-by-step explanation:
Triangle X Y Z is shown.
The length of X Y is 9,
the length of Y Z is 19, and the length of X Z is y. Angle X Y Z is 41 degrees.
Law of cosines is given as:a²= b² + c² – 2bccos(A)
Applying this to Triangle XYZ, and since we are Solving for y
y² = x² + z² - 2xzCos Y
The length of X Y = x is 9,
the length of Y Z = y is 19
y²= 9² + 19² - 2(9 × 19)Cos (41°)
= y² = 9² + 19² - 2(9)(19)Cos (41°)
Option d is correct
Answer:
Choice D is correct
Step-by-step explanation:
Just took the test
i need help 42/18 simplified.
Answers
Answer:
The simplest form of 42/18 is 7/3 or 2 1/3
Step-by-step explanation:
Answer:
7/3 or 2 and 1/3
Step-by-step explanation:
So first you have to find what is GCF of 42 and 18, which is 6 so divide 42 and 18 by 6 and you get 7/3 which is your simplified fraction but you can make this into a mixed number which would be 2 and 1/3
21.What is the value of their expression below?
18-3(1 + 5)
Answers
Step-by-step explanation:
3 is being multiplied by the numbers in the bracket so
18-(3x1+3x5)
18-(3+15)
18-(18)
answer is 0
6) We ordered music CDs. Ted ordered 5 rock CDs and 4 hip hop CDs for a total of $120. From the same site, Betty ordered 3 rock CDs and 5 hip hop CDs for a total of $98.
a) Write the system of 2 linear equations.
b) How much did each rock CD cost if each rock CD was the same price?
c) How much did each hip hop CD cost if each hip hop CD was the same price?
-show work-
Answers
A) 5x + 4y = 120
3x + 5y = 98
B) To solve this, we must solve the equation.
5x + 4y = 120
3x + 5y = 98
STEP ONE:
Divide
x + 4/5y = 24
STEP TWO:
Substitute the variable
x = 24 - 4/5y
STEP THREE:
Substitute the value of the variable
3(24 - 4/5y) + 5y = 98
STEP FOUR:
Multiply
72 - 12/5y + 5y = 98
STEP FIVE:
Subtract 72 from both sides
-12/5y + 5y = 26
STEP SIX:
Add
Turn 5y into 25/5y
-12/5y + 25/5y = 26
13/5y = 26
2.6y = 26
STEP SIX:
Divide 2.6 from both sides
26/2.6 = 10
y = 10
Each Hip-Hop CD Costs $10
(We will save this for later, because the question asked about rock CDs.)
STEP SEVEN:
Find x
x = 24 - 4/5(10)
4/5 = 0.8
0.8(10) = 8
x = 24 - 8
x = 16
Therefore, each Rock CD costed $16.
C) We found this earlier, each Hip-Hop CD costs $10.
Sorry this was a little lengthy, but I hope this helped!
Rewrite the subtraction problem as an addition expression using the additive inverse. -9.7 - (-18,6)
Answers
Answer:
-9.7 + 18.6
Step-by-step explanation:
Given the expression:
-9.7 - (-18,6)
The additive inverse of -18.6 is 18.6
The product of teo negative sign will also give a positive sign, hence:
-9.7 - (-18,6) = -9.7 + 18,6
-9.7 + 18,6 = 18.6 - 9.7
18.6 - 9.7 = 8.9
Hence the expression can also be written as -9.7 + 18.6 with 8.9 being the solution
CAN SOMEONE PLEASE HELP?? IF SO, PLEASE AND THANK YOU.
Answers
Answer:
[tex] \huge\boxed{d. \: 18a {b}^{3} \: and \: 16 {a}^{3} b}[/tex]
is the unlike pair terms.
Jackson has $300 and spends $42.
What percent of his money is spent?
Answers
Answer:
14%
Step-by-step explanation:
42 ÷ 300 = 0.14 = 14%
or
subtract 42 from 300 which gives you 258
258 is 86% of 300
86-100 is 14 so 14%
There are 70 students in the school band. 40% of them are sixth-graders, 20% are seventh graders, and the rest are eighth-graders. How many students are eighth-graders?
Answers
Answer:
28
Step-by-step explanation:
Answer:
Step-by-step explanation:
28
please help fast i’ll make brainliest
Answers
Answer:
The answer is 4.6.
Step-by-step explanation:
If you look at the graph closely, you would see that the intersection is very close to 4, so the answer is 4.6.
2
Belvedere swam 35 laps in 13 hours. Find his swimming rate in laps
per hour.
Answers
Answer:
25m
Step-by-step explanation:
Item 14 The endpoints of $\overline{AB}$ are $A\left(7,\ 8\right)$ and $B\left(-2,\ 3\right)$ . Find the coordinates of the midpoint M. Coordinates of midpoint M: ( , )
Answers
Answer:
(2.5, 5.5)
Step-by-step explanation:
The formula for calculating the midpoint of two coordinates is expressed as;
M(X, Y) = {(x1+x2/2, y1+y2/2)}
X = x1+x2/2
Y = y1+y2/2
Given the coordinates (7, 8) and (-2, 3)
X = 7-2/2
X = 5/2
X = 2.5
Y = y1 + y2/2
Y = 8+3/2
Y = 11/2
Y = 5.5
Hence the midpoint M of the coordinates is (2.5, 5.5)
A.54 ÷ 3 = 18, with a remainder of 0.
B.52 ÷ 3 = 16, with a remainder of 1.
C.54 ÷ 17 = 3, with a remainder of 1
D. 52 ÷ 3 =17, with a remainder of 1.
Answers
9514 1404 393
Answer:
D. 52 ÷ 3 =17, with a remainder of 1
Step-by-step explanation:
There are only two answer choices that make a true statement: A and D. Of these, comparison with the diagram shows that you're looking for a statement where 17 and a remainder of 1 are involved. That's choice D.
Arianna takes a sheet of paper and makes a diagonal cut from one corner to the opposite corner, making two triangles. The cut she makes is 15 inches long and the width of the paper is 12 inches. What is the paper's length?
Answers
Answer:
9
Step-by-step explanation:
The length of the paper , x, can be obtained using Pythagoras :
Width = 12 ; length = 15
x² = 15² - 12²
x² = 225 - 144
x² = 81
x = sqrt(81)
x = 9
Hence, length of the paper = 9 inches
What is the quotient of 5 7÷5 14?
Answers
Answer:
57/514 is the correct answer
Step-by-step explanation:
HURRY PLEASE!
(g+2)^5
Answers
Step-by-step explanation:
We need to use the binomial theorem/Pascal's triangle here.
(a+b)^5 = (5 choose 0)a^5 + (5 choose 1)a^4*b + (5 choose 2)a^3*b^2 + (5 choose 3)a^2*b^3 + (5 choose 4)a*b^4 + (5 choose 5)b^5.
5 choose 0 = 1
5 choose 1 = 5
5 choose 2 = 10
5 choose 3 = 10
5 choose 4 = 5
5 choose 5 = 1
And 1, 5, 10, 10, 5, 1, is the (5+1) = 6th row of pascal's triangle.
Therefore we get
g^5 + 5g^4*2 + 10g^3*2^2 + 10g^2*2^3 + 5g*2^4 + 2^5
which is
g^4 + 10g^4 + 40g^3 + 80g^2 + 80g + 32
Or, you could do the slow way, by just doing (g+2)(g+2)(g+2)(g+2)(g+2)
-3(2.5+k) + 0.5(7+8k)
Answers
-3 (2.5 + k) + 0.5 (7 + 8k)
Apply distributive property.
-7.5 - 3k + 3.5 + 4k
Add like terms.
-4 + k
k - 4
k - 4 is your answer. I hope this helps you! Let me know if I got anything wrong.
Answer: if you are simplifying it the answer is k-4
Step-by-step explanation:
Please solve number 5 for me. Work would be appropriated
Answers
Answer:
(x-8)(x+7) in which x = 8, -7 (if needed)
Step-by-step explanation:
Figure out first what two numbers can go to 56. The possible combinations are 1 and 56, 2 and 28, 4 and 14, and 7 and 8. The middle number has to equal the sum of -1. Therefore, 7 and 8 will go to that sum with -8 as one and +7 as another. Your factor should be (x - 8) (x + 7) and when you are finding for the x-values, it should be 8 and -7 when necessary.