PLEASE HELP 100 points and Brainliestwill be given!!
Which equation represents exponential decay?
Answers
Answer:
The answer is C
Step-by-step explanation:
Exponential decay is when b is between 0 and 1.
Answer:
C. y = 10(0.13)^x.
Step-by-step explanation:
exponential decay is decreasing from what I remember from Algebra 1 Honors. So therefore, your only answer can be C. y = 10(0.13)^x.
The others all increase because 31, 3.1, 1.03 are all bigger than 1 which means that they increase while .13 decreases.
C. y = 10(0.13)^x.
Related Questions
What is the equation of the line that passes through (4, -1) and (-2, 3)?
Answers
Answer:
3--1/-2-4=4/-6=2/-3
y=-2/3x+b
-2*-2/3=4/3
3-4/3=5/3
y=-2/3x+5/3
Step-by-step explanation:
Answer:
[tex]\displaystyle y=-\frac{2}{3}x+\frac{5}{3}[/tex]
Step-by-step explanation:
We want to find the equation of the line that passes through the two points:
(4, -1) and (-2, 3).
First, we will find the slope of the two points. So:
[tex]\displaystyle m=\frac{3-(-1)}{-2-4}=\frac{4}{-6}=-\frac{2}{3}[/tex]
Now, we will use the point-slope form given by:
[tex]y-y_1=m(x-x_1)[/tex]
Use either point. I'm going to use (4, -1). So, substitute:
[tex]\displaystyle y-(-1)=-\frac{2}{3}(x-(4))[/tex]
Simplify and distribute:
[tex]\displaystyle y+1=-\frac{2}{3}x+\frac{8}{3}[/tex]
Subtract 1 from both sides. Therefore:
[tex]\displaystyle y=-\frac{2}{3}x+\frac{5}{3}[/tex]
Can someone simplify this equation and solve for x and y?
(2x-5)+(y-1)+x=169
Answers
Answer:
Answer
2x+3y=14,2x−3y=2
Adding :
2x+3y=14
2x−3y=2
__________
4x=16
x=4
∴xy=4×2
=8
2×4+3y=14
8+3y=14
3y=6
y=2
Step-by-step explanation:
here you go
Answer: The y-intercept is found by substituting known values for x and y in the equation and solving for b. the known values are (x,y) = (2,8.4) Equation of y = 4.2*x + b becomes 8.4 = 4.2*2 + b
Step-by-step explanation:
Here is a rectangle all measurement are in centimetres the area is 48cm^2 find the value of y
Answers
Answer:
y = 3 cm
Step-by-step explanation:
We'll begin by calculating the value of x. This can be obtained as follow:
2x + 6 = 5x – 9 (opposite side of rectangle are equal)
2x + 6 = 5x – 9
Collect like terms
6 + 9 = 5x – 2x
15 = 3x
Divide both side by 3
x = 15 / 3
x = 5 cm
Next, we shall determine the length of the rectangle. This can be obtained as follow:
L = 2x + 6
x = 5 cm
L = 2(5) + 6
L = 10 + 6
L = 16 cm
Finally, we shall determine the value of y. This can be obtained as follow:
Length (L) = 16 cm
Width (W) = y =?
Area (A) = 48 cm²
A = L × W
48 = 16 × y
Divide both side by 16
y = 48 / 16
y = 3 cm
Use special right triangles to solve for all the variables. Leave your answers in simplest radical form.
Answers
Answer:
Step-by-step explanation:
x=5[tex]\sqrt{2}[/tex] because it is an isosceles right triangle , as we have and angle of 45 and one of 90
y is the hypothenuse of the triangle
y^2=(5[tex]\sqrt{2}[/tex])^2+(5[tex]\sqrt{2}[/tex])^2=50+50=100
y=10
the larger triangle is 30-60-90
side opposite of 90 degrees is 2y
r=20
side opposite of 60 degrees is y[tex]\sqrt{3}[/tex]
z=10[tex]\sqrt{3}[/tex]
Write the equation of the parabola that has the vertex at point (-2, -2) and passes through the point (-1, -1)
Answers
Answer:
y = (x+2)²-2
Step-by-step explanation:
Use the vertex form y = a(x-h)²+k. Plug in the vertex for h and k. Solve for a and you will get 1 for that value. You can check your answers by plugging in both of those points to make sure.
Use the FOIL Method to find (x−4)(x+8).
Answers
Answer:
[tex]x^2 +4x - 32[/tex]
Step-by-step explanation:
By FOIL method, [tex](x-4)(x+8) = x \cdot x + x \cdot 8 + -4 \cdot x + -4 \cdot 8 = x^2 +4x - 32.[/tex]
find the following square by using the identities
[tex](2xy + 5y) {?}^{2} [/tex]
Answers
Given:
Consider the given square is
[tex](2xy+5y)^2[/tex]
To find:
The value of given square by using the identities.
Solution:
We know that,
[tex](a+b)^2=a^2+2ab+b^2[/tex] ...(i)
We have,
[tex](2xy+5y)^2[/tex]
Using the identity (i), we get
[tex](2xy+5y)^2=(2xy)^2+2(2xy)(5y)+(5y)^2[/tex]
[tex](2xy+5y)^2=4x^2y^2+20xy^2+25y^2[/tex]
Therefore, the value of given square expression is [tex]4x^2y^2+20xy^2+25y^2[/tex].
helpppppppppppppppppppppppppppppppppppppppppppp
Answers
Answer:
lets talk first
Step-by-step explanation:
Answer:
4/13
Step-by-step explanation:
u just mutilpy 1/52 by 2 = 1/26 by 2 = 1/13 by 2= 2/13 by 2- 4/13
what is the answer to 3x + 4y - 2g + s
Answers
there isn't an answer since all the letters are different and you can't add or subtract or do anything to uncommon values. 3x+x = 4x but u can't do 3x +y because they're not in common
HELP!! WILL GIVE 100 POINTS
Complete the following statement.
In 2/3 ÷ 4/5 the___ is 2/3
dividend
quotient
divisor
Answers
Answer:
2/3 is quotient.
Step-by-step explanation:
2/3÷4/5=(2×5)/(3×4)=10/12=5/6
Answer:
quotient
Step-by-step explanation:
If it is a divison problem your answer will be a quotient.
Simplify the following expressions:
1/4 (24x + 8)
3/5 (10y - 5)
4m + 8p - 5m + 2p
6 ( j - 5) + 2 (3j + 5)
5 ( 3y + 2) - 4 ( y - 1)
Answers
Answer:
6x+2
6y+3
9+10
36+40
19+14
Sorry if this is wrong I recently learned this
What should be the answer for 3 multiplied by x? If x is 9.
Answers
Answer:
27
Step-by-step explanation:
x = 9
3 x 9 = 27
I would really appreciate if someone would help me i don’t understand
Answers
Answer:
D. 48
Step-by-step explanation:
In the experiment, 16/40 landed exactly on heads. If you do 16/40 * 3/3 = 48/120.
This means that you can estimate 48 of the next 120 trials have 2 coins showing heads.
Decide if the following statement is valid or invalid.
If I go to the park, then I will play baseball. If I play baseball, I will need a glove. I will go to the park tomorrow, I will need a glove.
Valid or Invalid ?
Answers
Answer:
valid
Step-by-step explanation:
MARKING BRAINLIEST!!
Answers
Answer:
6a and a(2*3) and 2(a+2a)
Step-by-step explanation:
2*3a=6a
find the length of x in simplest radical form with a rational denominator
Answers
Answer:
√3Step-by-step explanation:
[tex]\cos(30^o)=\dfrac{\sqrt3}2[/tex]
From triangle: [tex]\cos(30^o)=\dfrac x2[/tex]
Therefore:
[tex]\dfrac x2=\dfrac{\sqrt3}{2}\\\\x=\sqrt3[/tex]
h + 6.3 = −6.3 solve for h
Answers
Answer:
0
Step-by-step explanation:
Hi there!
Let think about this...
-6.3-6.3=h
h+6.3=-6.3
negative plus positive is negative...
h=negative number..
6.3+6.3=12.6 add a negative point=-12.6
Final Result: -12.6
help me please I really need it.
Thank you
Answers
Answer:
D
Step-by-step explanation:
Answer:
D is ur answer
Step-by-step explanation:
Bye
Calculate the scale factor for the original triangle and its
larger image. Show your working out.
Answers
Answer:
2
Step-by-step explanation:
8/4=2
have a good day..
Pablo swims 1 length of a swimming pool. What unit would be best for measuring that length of the pool?
Answers
Answer:
kiloliters
Step-by-step explanation:
The amount of water a family uses in a year is a large amount of water - more than the amount of water in a pool! This means kiloliters would be the best unit of measurement.
5,349 divided by 21????????
Answers
Answer: 254.714285714 or rounded to 255
Step-by-step explanation:
Have a good day:)
Answer:
254.71
Explanation:
5349 / 21 = 254.71
solve 3p+2c is greater or equal to 120 and graph the solution
Answers
Answer:
equal to 120
3p+2c is equal to 120 and graph the solution.
3 times 20=60
2 times 30 =60
60+60=120
P=20
C=30
y=4x-6
2x-3y=8
if this problem is to be solved bye substitution, which is correct step
Answers
Answer:
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
ok
If there is a 70% chance that it will snow today, what is the percent chance that it
will NOT snow today?
Answers
Answer:
30%
Step-by-step explanation:
100-70=30
Answer:
i dunno 30%?
Step-by-step explanation:
Blue whales have an estimated weight of 3.6 x 104 pounds. James
weighs approximately 1.8 x 102 pounds. How many people who weigh the
same as James would it take to equal the weight of the blue whale?
Answers
6. At the Winter Olympics, the ratio of Canadian medals to US to Russia was 1:8:5. If Russia won 25
medals, how many did Canada and US won?
Answers
Answer:
Step-by-step explanation:
Let x be the total number of medals won by the Russians.
The way to do this is to add the ratios together
1 + 8 + 5 = 14
(5/14) x = 25
Multiply by 14
5*x = 25 * 14
5x = 350
divide by 5
70
8/14 = x / 70
14x = 8 * 70
14x = 560
x = 560 / 14
x = 40
The USA won 40 medals.
1/14 = x / 70
14x = 70
x = 5
Canada Won 5 medals.
Check
Russia Won 25 medals
Canada Won 5 medals
USA Won 40 medals
Total 70
PLWASE HELP ME THIS IS DUE TODAY
Find the area of the shaded region. Use 3.14 for it. 8 cm 8 cm
Answers
Remember: Area of the circle= 3.14 x r^2
if you don't understand some passage write in the comments of my answer ;)
There are 3 green marbles and 15 blue marbles in a bag. What is the ratio of green marbles to total number of marbles? Select all the equivalent ratios that represent this relationship.
Answers
Good Luck!
I need help with this probability question.
Answers
Answer:
20/total (u can calculate it)
Step-by-step explanation:
Number of dogs/Total number of pets
Only for (a) please!
Answers
Answer:
Efx=2300 may be it would help : )
Step-by-step explanation:
To find that u have to :
mass mid value(x) Number..(f) fx
10-29 19 32 608
30-39 9 38 342
40-49 9 64 576
50-59 9 35 315
60-69 9 22 198
70-99 29 9 . 261
Efx=2300