I added pics cause it’s 2 in the morning.. I’m having back pain, thigh pain, cramps EVERYWHERE.. headache and just finished babysitting my baby brother.. help a gurl out please ( yes I have been copying and pasting)
Answer:
Conner's work is correct
Step-by-step explanation:
Operations With Exponents
We need to use the rule to find the product of two or more exponential expressions:
[tex]x^m\cdot x^n\cdot x^p = x^{m+n+p}[/tex]
We need to multiply:
[tex](3^5 6^8)(3^9 6^{10})[/tex]
Base 3 is treated independently from base 6, so we have two groups of operations:
[tex](3^5 6^8)(3^9 6^{10})=3^{5+9} 6^{8+10}[/tex]
Adding the exponents:
[tex](3^5 6^8)(3^9 6^{10})=3^{14} 6^{18}[/tex]
Thus, Conner's work is correct
5. Purple Bricks are stacked according to the pattern below. Each row contains 2 more bricks than the row above it!
Part A.
Determine a Quadratic Function to model the total number of bricks in the stack, f(x), given a number of rows X.
Part B.
If there are 50 rows in the stack, how many bricks would there be ? Use your quadratic function to determine the number of rows. Show your work and explain your reasoning
Answer:
Part A
The Quadratic Function to model the total number of bricks the stack is f(x) = x²
Part B
The number of bricks we will have for 50 rows is 2500 bricks
Step-by-step explanation:
Part A
Let the Quadratic Function to model the total number of bricks the stack, f(x), where x is the number of rows be f(x) = a·x² + b·x + c
We have;
When x = 0, f(x) = 0, therefore, f(0) = a×0² + b×0 + c = 0 + 0 + c = 0
∴ c = 0
When x = 1, f(x) = 1, therefore, f(1) = a×1² + b×1 + 0 = 1
∴ a + b = 1...(1)
When x = 2, f(x) = 4, therefore, f(2) = a×2² + b×2 = 4
∴ 4·a + 2·b = 4...(2)
Multiply equation (1) by 2, and subtract it from equation (2) gives;
4·a + 2·b - 2×(a + b) = 4 - 2 × 1
2·a = 2
a = 1
From equation (1), we have;
b = 1 - a = 1 - 1 = 0
b = 0
∴ f(x) = a·x² + b·x + c = 1·x² + 0·x + 0 = x²
Therefore, the Quadratic Function to model the total number of bricks the stack, f(x), where x is the number of rows be f(x) = x²
Part B
If there are 50 rows in the stack, then we have, x = 50
Therefore;
f(50) = 50² = 2500
The number of bricks we will have for 50 rows is f(50) = 2500 bricks
There are 8 triangles and 2 circles. What is the simplest ratio of circles to triangles?
Answer:
Step-by-step explanation:
5:2
Answer:
1/4
Step-by-step explanation:
Ratio of circle to the triangle=2/8
=1/4
So 1/4 is the answer
Blaze is paid $4 for every hour he babysits. Mrs. Dirlam paid him for 5 hours of
babysittting. On the way home, Blaze spent $9 on a book and $6 on a puzzle. How
much money did Blaze have left from the money he received from Mrs. Dirlam?
Answer:
5 dollars left
Step-by-step explanation:
4 x 5 is 20
then 20-15 is 5
hope this helps luv
What is happening in the graph shown below?
Answer:
A the awsers a
Step-by-step explanation:
as time goes by the obeject slows down due to fruction
Answer:
C
Step-by-step explanation:
the answer is C because this is a Distance/Time graph. The speed is not changing here, the distance is decreasing as we move, which means we're moving towards the point of origin
The weights of healthy adult male Labrador Retrievers are approximately Normally distributed with a mean of 77 pounds and a standard deviation of 6 pounds
A)Make an accurate sketch of the weights of Labrador Retrievers with the horizontal axis marked
B)What weight would represent the 25th percentile?
C)What weight would represent the 75th percentile?
D) What is the interquartile range of male Labrador weights?
E)What proportion of male adult Labrador retrievers weigh above 85 pounds?
F) What proportion of male adult Labrador retrievers weigh between 60 and 80 pounds?
G) What proportion of male adult Labrador retrievers weigh less than 65 pounds?
Answer:the photo is for part A.
B) the weight would be Invnorm(.25,77,6)=72.95
C)the weight would be 81.04 but this is the work invnorm(.75,77,6)=81.04
D)IQR=Q3-Q1
81.04-72.95=8.09
E)9.12 is the answer the work normalcdf(85,1000,77,6)=.0912
F).6892 or 68.92% are the answers the work normalcdf(60,80,77,6)=.6892
G).0227 or 2.27% is the answer and the work normalcdf(0,65,77,6)=.0227
Step-by-step explanation:
Using the normal distribution, we have that:
a) The sketch is given at the end.b) A weight of 72.95 pounds would represent the 25th percentile.c) A weight of 81.05 pounds would represent the 75th percentile.d) The interquartile range is of 8.1 pounds.e) 0.0918 = 9.18% of male adult Labrador retrievers weigh above 85 pounds.f) 0.6892 = 68.92% of male adult Labrador retrievers weigh between 60 and 80 pounds.g) 0.0228 = 2.28% of male adult Labrador retrievers weigh less than 65 pounds.----------------------
Problems of normal distribution can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
----------------------
Mean of 77 means that [tex]\mu = 77[/tex]Standard deviation of 6 means that [tex]\sigma = 6[/tex]As for item a, the sketch is given at the end of the question.----------------------
Item b:
The weight is X when Z has a p-value of 0.25, so X when Z = -0.675.[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]-0.675 = \frac{X - 77}{6}[/tex]
[tex]X - 77 = -0.675(6)[/tex]
[tex]X = 72.95[/tex]
A weight of 72.95 pounds would represent the 25th percentile.
----------------------
Item c:
The weight is X when Z has a p-value of 0.75, so X when Z = 0.675.[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]0.675 = \frac{X - 77}{6}[/tex]
[tex]X - 77 = 0.675(6)[/tex]
[tex]X = 81.05[/tex]
A weight of 81.05 pounds would represent the 75th percentile.
----------------------
Item d:
The interquartile range is the difference between the 75th and the 25 percentile, thus:
[tex]81.05 - 72.95 = 8.1[/tex]
The interquartile range is of 8.1 pounds.
----------------------
Item e:
The proportion is 1 subtracted by the p-value of Z when X = 85, thus:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{85 - 77}{6}[/tex]
[tex]Z = 1.33[/tex]
[tex]Z = 1.33[/tex] has a p-value of 0.9082.
1 - 0.9082 = 0.0918.
0.0918 = 9.18% of male adult Labrador retrievers weigh above 85 pounds.
----------------------
Item f:
The proportion is the p-value of Z when X = 80 subtracted by the p-value of Z when X = 60, thus:
X = 80:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{80 - 77}{6}[/tex]
[tex]Z = 0.5[/tex]
[tex]Z = 0.5[/tex] has a p-value of 0.6915.
X = 60:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{60 - 77}{6}[/tex]
[tex]Z = -2.83[/tex]
[tex]Z = -2.83[/tex] has a p-value of 0.0023.
0.6915 - 0.0023 = 0.6892.
0.6892 = 68.92% of male adult Labrador retrievers weigh between 60 and 80 pounds.
----------------------
Item g:
This proportion is the p-value of Z when X = 65, thus:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{65 - 77}{6}[/tex]
[tex]Z = -2[/tex]
[tex]Z = -2[/tex] has a p-value of 0.0228.
0.0228 = 2.28% of male adult Labrador retrievers weigh less than 65 pounds.
A similar problem is given at https://brainly.com/question/21628677
HELP
Select the function that defines the given sequence.
–8, -20, -50, -125, -625.
Answer:
The answer is B
Step-by-step explanation:
a1 = -8
a2 = -8 * 2.5
a3 = -8 * 2.5 * 2.5
a4 = -8 * 2.5^3
an = -8 * 2.5^(n - 1)
The first term is -8. Each subsequent term is 5/2 times the previous term.
Mr.Dotson cherry tree grew 12 inches in 3/4 of a year. At that rate, how much would it grow in 1 year?
Answer:
16 inches
Step-by-step explanation:
12 divided by 3 is 4
4 inches for 1/4 of the year
4 x 4 = 16 inches
please answer i’ll give extra points
Answer:
i think it might be d
Step-by-step explanation:
write an equation in slope intercept form of the line shown that passes through (6,-1) and (3,-7)
Answer:
y=2x-13
Step-by-step explanation:
:)
is 400% of 8 less than 10, greater than 10 but less than 100, or greater than 100
Whats a perfect square trinomial
Answer:
"Perfect square trinomials" are quadratics which are the results of squaring binomials.
Step-by-step explanation:
Can I have brainliest pls?
Answer:
An expression obtained from the square of binomial equation is a perfect square trinomial. An expression is said to a perfect square trinomial if it takes the form ax2 + bx + c and satisfies the condition b2 = 4ac. The perfect square formula takes the following forms: (ax)2 + 2abx + b2 = (ax + b)
I need help with this
Answer:
no solutions
Step-by-step explanation:
3x+ 7(x+1) = 2(6x+5) -2x
Distribute
3x+7x+7 = 12x+10-2x
Combine like terms
10x+7 = 10x+10
Subtract 10 from each side
10x+7-10x = 10x+10-10x
7 = 10
This is not a true statement so there are no solutions
what is the equation of the line that is perpendicular to the line y= -1/2 (x-18) and intersects the y-axis at (0,-1) ????
Answer: y=2x+1 sjsjrhrhfhhhxhh
Answer: its y=-2x-1
Step-by-step explanation:
8. Give an example of a rational number that is NOT an integer.
9. Give an example of an integer and prove how you know it is a rational number.
Answer:
2.37 its a rational number because its a decimal
8. -5/3 is an example of a rational number that is NOT an integer.
9. For example a number like -3/7 are also rational, since they are fractions whose numerator and denominator are integers.
someone please help ❤️❤️
Answer:
1) 44 2) 136 4) 44 5) 44 6) 136 7) 136 8)44
Step-by-step explanation:
You find the small angle by doing 180-136 = 44 then you can reflect over the line and because the bottom lines are parallel they are the same for 5 6 7 and 8
Hi anyone know the answer to this? Ill give brainliest ^^
Answer:
its y=5x-3
find the y intercept first and the ide over run for slope
The lateral surface area of a cylinder is 288π square centimeters. The height of the cylinder is 16 centimeters. What is the diameter of the cylinder in centimeters?
Answer:
18 cm
Step-by-step explanation:
The formula for the lateral surface area of a cylinder is
=>2πrh
In the question:
The lateral surface area of a cylinder is 288π square centimeters.
The height of the cylinder is 16 centimeters.
Hence:
288π => 2πrh
288π => 2 × π × r × 16
288π => 32πr
r => 288π/32π
r => 9 cm
The formula of Diameter is 2 × radius
= 2 × 9 cm
Diameter =>18 cm
The diameter of the cylinder in centimeters is 18 cm
Which is the correct graph of the equation y=-1/3x+5
Answer:
x=15 i think but im pretty sure
Step-by-step explanation:
[tex]\frac{\sqrt{5} -2}{\sqrt{5} +2}[/tex] YALLLLLLL HELP PLEASEEEEE W EXPLANATION ILL GIVE BRAINLIEST
Answer:
Step-by-step explanation:
What is force? O Push O Pull O Neither O Both
Answer:
Both
Step-by-step explanation:
both???????????????????????????
I need help with this
Answer:
U'(-1, 04)Step-by-step explanation:
Given
Point U(1, -4)Reflection over y-axis results in same y-coordinate and opposite x-coordinate
U(1, -4) → U'(-1, -4)2.
The radius, r, and the coordinates of the centre, C, of the circle with equation
x2 + y2 - 6x + 4y - 12 = 0 are
A. r = 5, C(-2,3)
B. r = 25, C(2,-3)
C. r = 12, C(-3,2)
D. r = 5, C(3,-2)
Answer: D. r = 5, C(3,-2)
Step-by-step explanation:
Use a graphing calculator. Enter exponents correctly.
I need help trying to find the answer to -4(x-1)=-3x+31
Answer:
x=27
Step-by-step explanation:
-4x+4=-3x+31
4=x+31
27=x
Answer:
x=-27
-4x+4=-3x+31
-x=27
x=-27
Annie earns $4200 per month, of which 20% is taken out for federal and state income taxes and other required deductions. Last month she spent $925 for rent and $212.13 for clothing. What percent of her take home pay did she spend on rent and clothing?
Answer:
Step-by-step explanation:
The Low-Income Housing Tax Credit provides a tax incentive to construct or rehabilitate affordable rental housing for low-income households.
calculate the perimeter of the rectangle if the length is 7cm and the height is 2cm
Answer:
Perimeter = 18
Step-by-step explanation:
P=2(l+w)=2·(7+2)=18cm
what is the perpendicular slope intercept form????
Answer:
y=3/4x+5
Step-by-step explanation:
Well to begin with make the slope perpendicular so so far we have y=3/4x but than it needs to go through that point so we input the X in that point into our current equation to get y=-3 but we need to make it y=2 so we change our equation to y=3/4x+5 and that is your equation
PLS HELP DO NOT JUST PUT A RANDOM ANSWER PLEASE 15 POINTS!!!
Answer:
Step-by-step explanation:
Where's the question?
But if the question is to represent the equation on the graph then
Just fix in any random value for x,say x=3...then insert into into your equation y=3/2x-1 y=3/2(3)-1 y will be 3.5 when x is 3 so you get a coordinate like(3,3.5) repeat that for about three more values then plot a line
HOPE THIS HELPS
the store offers a 20% discount. the discount price of a hat is 18$. What is the regular price
Answer:
regular price is $22.50
Step-by-step explanation: 22.50*.20=4.5 (discount)
What is (6.4 x 103) + (5.2 x 104)?
Answer:
1200
Step-by-step explanation:
(6.4 x 103) + (5.2 x 104)
659.2+540.8
1200
So 1200 is the answer
Answer:
1200
Step-by-step explanation:
[tex](6.4 *103) + (5.2 * 104)[/tex]
[tex]6.4*103=659.2[/tex]
[tex]5.2*104=540.8[/tex]
[tex]659.2 + 540.8[/tex]
[tex]=1200[/tex]
[tex](6.4 *103) + (5.2 * 104) = 1200[/tex]
