HELP ASAP!!
question: which expression is equivalent to 7z + 3z by the distributive property?
answers:
A. z(7 + 3)
B. (7 + 3) + (z + z)
C. 10z squared
D. 73z
the answer is a b c or d
Step-by-step explanation:
because I smart
What is 0.4 as a whole number
Answer:
may be this helpful!
0.4 as a whole number would 1
What is an whole no?The number 4 cannot be rounded down to 0 because 0 is not bigger or the same as 0. 4
Instead, the number 0. 4 would be rounded up to 1, which is the closest whole number.
A whole number is a positive number that doesn't have any parts with decimals or fractions. Whole numbers are numbers that start from 0 and go up without any fractions or negative numbers. In simpler terms, whole numbers include the numbers 0, 1, 2, 3, 4, 5, and so on. They only have positive numbers and whole numbers.
Learn more about whole no
https://brainly.com/question/9879870
#SPJ6
Find the slope using points:(2, 2) and (-5, 4)
Answer:
2/-7
Step-by-step explanation:
Answer:
-2/7
Step-by-step explanation:
0.66666666666 in 3 significant figures
Answer:We round a number to three significant figures in the same way that we would round to three decimal places. We count from the first non-zero digit for three digits. We then round the last digit. We fill in any remaining places to the right of the decimal point with zeros
Step-by-step explanation:
Consider the equation:
X2+ 2x – 15 = 0
A) First, use the "completing the square" process to write this equation in the form
(2 + D)2= E
Answer:
x² + 2x - 15 = 0
x² + 2x + 1 = 16
(x + 1)² = 16
You can then go forward with that to solve it:
x + 1 = √16
x = -1 ± √16
x = -1 ± 4
x = 3, -5
Please remember to explain how you got your answer!!!
If you drive 165 miles in 3 hours, how many miles can you expect to drive in 5 hours traveling at the same average speed?
Identify the terms and like terms in the expression 8 - x2 + x - 4x.
Answer:
x
Step-by-step explanation:
all those terms can be devided by x
Answer:
The terms are 8, -2x, x, and -4x. Like terms are -2x, x, and -4x because they have the same variable raised to the same exponent.
Step-by-step explanation:
G measures 117, angle c measures 22, and angle e measures 40. Angle f
Je suis américain et habite dans les montagnes vertes du vermont . Je premier apprend français il y a un an parce que c'est un beau langue . Oui, je sais mon français est mauvais, mais J'aime l'apprendre . Je suis dix-sept et j'ai un chien blanc petit . Ma famille l'appelle snowball et il est tres gentil . Mon préféré endroit en la monde est les montagnes car ils sont très beau dans tout quatre saisons . Merci pour votre temps et au revoir .
please answer thisss <3 (correctly pls :(.
Answer:
81 or [tex]3^{4}[/tex]
Step-by-step explanation:
[tex]3^{2} * 3^{2}[/tex]
(3 x 3) x ( 3 x 3)
9 x 9
81
The square root means to multiply a number by itself, and in this case, it's 3.
Keep the number 3 the same, and add up the exponents and it gives u [tex]3^{4}[/tex]
Hope this helped!
I will give brainiest to whoever answers correctly !!
Answer:28170.4551
Step-by-step explanation:
40000=P(1+2.7℅/12)^12*13=28170.4551
A supervisor records the repair cost for 22 randomly selected VCRs. A sample mean of $75.50 and standard deviation of $18.07 are subsequently computed. Determine the 99% confidence interval for the mean repair cost for the VCRs. Assume the population is approximately normal.
Answer:
The 99% confidence interval for the mean repair cost for the VCRs
(65.801, 85.199)
Step-by-step explanation:
Explanation:-
Mean of the sample(x⁻) = $75.50
Given the standard deviation of the sample (S) = $18.07
Given the size of the sample 'n' = 22
Degrees of freedom = n-1 =22-1 =21
critical value t₍₀.₀₁, ₂₁₎ = 2.5176
The 99% confidence interval for the mean repair cost for the VCRs
[tex](x^{-} - t_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} +t_{0.01} \frac{S.D}{\sqrt{n} })[/tex]
[tex](75.50 - 2.5176 \frac{18.07}{\sqrt{22} } , 75.50 +2.5176 \frac{18.07}{\sqrt{22} })[/tex]
( 75.50 - 9.699 , 75.50 + 9.699 )
(65.801, 85.199)
Final answer:-
The 99% confidence interval for the mean repair cost for the VCRs
(65.801, 85.199)
Can someone help me out please
what is the area of this figure to the nearest square centimeter
Answer:
I think is A) 33
Step-by-step explanation:
Pls help!!!!
What is the estimated sum of 6/7+ 4/7
Answer:
10/7 or 1 3/7
Step-by-step explanation:
Solve the system of equations.
{−x+y=13x−y=5
What is the y-coordinate?
Enter your numeric answer only.
Answer:
i have find the value of x and y in above figure hope it helps
The y-coordinate that represents the solution to the system of equations is 4
The equations are given as:
[tex]-x+y=1[/tex]
[tex]3x-y=5[/tex]
Make x, the subject in the first equation
[tex]-x+y=1[/tex]
[tex]x = y - 1[/tex]
Substitute y - 1 for x in the second equation
[tex]3x-y=5[/tex]
[tex]3(y - 1) - y = 5[/tex]
Open the brackets
[tex]3y - 3- y = 5[/tex]
Collect the like terms
[tex]3y - y = 5+3[/tex]
Evaluate the like terms
[tex]2y = 8[/tex]
Solve for y
[tex]y = 4[/tex]
Hence, the y-coordinate is 4
Read more about equations at:
https://brainly.com/question/14323743
Each year, a school committee sells donated cakes to raise money for a trip. The table shows the number of cakes sold each year for 5 years.
Year 2011 2012 2013 2014 2015
Number of Cakes Sold 21 28 19 26 21
Which measure of center best summarizes the number of cakes sold each year, and what is the value of the chosen measure?
Move a word and a value to the lines to complete the sentences.
The best measure of center for this data is the
, which has a value of
mean
median
mode
21
22
23
Please help me
Answer:
MODE 21
Step-by-step explanation:
:)
Paul is filling a kiddy pool that can hold up to 25 gallons of water. The water hose fills the tub at a constant rate. When Paul checks the pool, it contains 5 gallons of water. Three minutes later, the pool contains 7.4 gallons of water. At what rate does the pool fill up with water?
Answer:
0.8 gallons per second
Step-by-step explanation:
Given that :
Filling occurs at a constant rate ;
Change in gallon of water in pool within a 3 seconds time interval ;
Assume :
At t = 0 ; gallons = 5
At t = 3 ; gallons = 7.4
Chanhe in gallons with time.;
(7.4 - 5) / (3 - 0)
2.4 / 3
= 0.8 gallons per second
PLEAZE HELP
Line Y is represented by the equation y = 2x - 3. Line Z goes through the points (3, 8) and (4, 10). What is the solution for lines Y and Z?
O A no solution
O B. (2, 1)
OC. (5,7)
D. infinite solutions
A group of friends went out for dinner and decided to split the cost of the $196 bill equally. If each person contributed $30, they would not have enough to leave a 15% tip. But if each person contributed $33, they would cover the bill and a 15% tip and have $5.60 left over. How many friends went out to dinner? 1 point
Answer:6 friends
xcvbnm, zxdfghjk,cxdfghjm
Consider the system of equations shown.
4x+3y=14
2x+y=-2
Which is (are) the mathematically correct way(s) to start solving the system of equations using the elimination method?
Select ALL that apply.
4x + 3y = 14
-4x - 2y = -4
4x + 3y = 14
-6x - 3y = 6
-4x - 3y = -14
6x + 3y = -6
8x + 6y = 28
6x + 3y = -6
12x + 9y = 52
-6x - 3y = -6
Answer:
the 2nd one
Step-by-step explanation:
i took the test
Simplify the expression.
Write your answer without negative exponents.
Answer:
-5/ (x^19 * y^12)
Step-by-step explanation:
-15x^-10 * y ^ -3 * x^-9 * y^-9/3 (It's writing it like this.)
15 and 3 have a GCF of 3.
-5x^-10 * y^-3 * x^-9 * y^-9/1
Reduce similar occurrences. *twice in a row*
-5x^(-10 + (-9)) * y^(-3 + (-9))/1
Remove extra signs *twice in a row*
-5x^(-10 - 9) * y^(-3 - 9)/1
Remove extraneous 1.
-5x^(-10 - 9) * y^(-3 - 9)
Add integers.
-5x^-19 * y^-12
Negative powers change multiplication to division.
-5 / (x^19 * y^12) is the final answer.
Even with that, the simplified answer wouldn't have negative exponents because of the negative powers rule.
Try It!
(») 1. Write a compound inequality for the graph.
+
0
-2
6 help neededddd!!
Answer:
-2 < x ≤ 6
Step-by-step explanation:
This graph shows conjunction. This means that the two statements of the inequality bare true at the same time. Therefore, it follows that:
x > -2 ("we use greater than" because the empty/unshaded circle indicates that -2 is not included)
And
x ≤ 6 (we use greater than or equal to because the shaded circle indicates 6 is included)
Joining both statements together, we would have:
-2 < x ≤ 6
A car manufacturer crash tests a certain model of car and measures the impact force. The test and model in question produce impact forces that are normally distributed with a mean of 303030 metric tons and a standard deviation of 1.51.51, point, 5 metric tons. Suppose that the manufacturer tests a random sample of 444 cars and calculates the sample mean impact force.
Answer:
_
P(x >30.75)≈0.16
Step-by-step explanation:
just had this question on khan academy.
Kyle starts saving for his first car by opening a savings account and depositing $100 . He plans to make a deposit every month to continue saving. The amount of money in Kyle's savings account can be modeled by the sequence 0=100, , =−1+75 , where is the number of months since his initial deposit. Is the sequence a function? Why or why not?
Answer:
The sequence is a function
Step-by-step explanation:
Given
Sequence: [tex]A_0=100[/tex]; [tex]A_n=A_{n-1}+75[/tex]
Required
Is the sequence a function
To determine if the sequence is a function or not, we start by calculating its range from the domain:
When n = 0; [tex]A_0=100[/tex]
When n = 1: [tex]A_1 = A_{1-1} + 75 = A_0 + 75 = 100 + 75 = 175[/tex]
When n = 2; [tex]A_2 = A_{2-1} + 75 = A_1 + 75 = 175 + 75 = 250[/tex]
When n = 3; [tex]A_3 = A_{3-1} + 75 = A_2 + 75 = 250 + 75 = 325[/tex]
This implies that:
The domain (n) and the range (An) can be represented as:
[tex]\left[\begin{array}{c}n&-&0&1&2&3\\-&-&-&\end{array}\right][/tex] [tex]\left[\begin{array}{c}A_n&-&100&175&250&325\\-&-&-&\end{array}\right][/tex]
The above shows that the sequence is a one to one relation and a one to one relation is always a function.
Answer:
Yes, because for each input value, n, there is only one possible output value.
Step-by-step explanation:
Describe how the graph of y= x2 can be transformed to the graph of the given equation. y = x2 + 9 Shift the graph of y = x2 left 9 units. Shift the graph of y = x2 right 9 units. Shift the graph of y = x2 down 9 units. Shift the graph of y = x2 up 9 units.
Answer:
Shift of graph of y=x^2 up 9 units.
Option D is correct option.
Step-by-step explanation:
We are given:
[tex]y = x^2[/tex]
We need to describe how the graph of [tex]y = x^2[/tex] can be transformed to the graph of the given equation [tex]y=x^2+9[/tex]
We know the transformation rule:
If f(x) is transformed into f(x)+h, the graph is transformed vertically up h units.
So, In our case:
[tex]y=x^2[/tex] is transformed into [tex]y=x^2+9[/tex]
So, The graph is transformed vertically up 9 units.
Or we can write, shift of graph of y=x^2 up 9 units.
Option D is correct option.
What is equivalent 14×14
Answer:
196
Step-by-step explanation:
14 squared is 196. if thats the answer your looking for
Answer:
196 i believe.
Step-by-step explanation:
hopes this helps :)What is the binomial expansion of (2x – 3)5?
5x-18<-8 I need help step by step
Answer:
x < 2
Step-by-step explanation:
[tex]5x - 18 < - 8 \\ 5x - 18 + 18 < - 8 + 18 \\ 5x < 10 \\ \frac{5x}{5} < \frac{10}{5} \\ x < 2[/tex]
Determine the value of x in the equation below.
x/5 =15
Answer:
2
Step-by-step explanation:
The largest species of jellyfish is the lion's mane jellyfish. One particular specimen has a diameter of 1.03 meters and tentacles that are 29 meters long. The specimen weighs 164 kilograms and can travel at a speed of 1.38 meters per second.
What is the diameter of the specimen in centimeters?
Answer:
The diameter of the specimen in centimeters is 103 cm.
Step-by-step explanation:
In order to determine the diameter in centimeters of the largest specimen of jellyfish, knowing that said diameter is 1.03 meters, and that 1 meter is equal to 100 centimeters, the following calculation must be performed:
1.03 x 100 = X
103 = X
Therefore, the diameter of the specimen in centimeters is 103 cm.