Answer:
- 25
Step-by-step explanation:
Does -a ? = (-a)?? Explain why or why not.
Explanation:
Always remember that variables have coefficients (x is the same as 1·x or 1x).
Raising a base to either an odd or even exponent has particular rules when it comes to signs:
If you raise -a² = -a² because a has a coefficient of - 1. This implies that -a² = -1a². Now, raising -a³ (odd exponent) still results in -a³ because you're only raising the base, a, to its exponent, and it doesn't include its coefficient of -1. Hence, -a³ = -1a³ = -a³.Also, (-a²) = -a² because once again, you're only raising the base, a, and not its coefficient (even if both are inside the parenthesis).It will be different if the base is raised as follows:
(-a)² = a² because the coefficient, -1, is included within the parenthesis. It is the same as (-1a)² = 1a² or a².(-a)³ = -a³ or -1a³ because it is an odd exponent, and if you raise a negative base to an odd exponent results in a negative value of the base.The key is that the exponent outside the parenthesis will affect both the coefficient and its base, such as (-a)².
Hope this makes complete sense.
A spaceship travels a 5^2 miles per hour and traveled for 5^18 hours.
Select the answer that represents how many miles the space shop traveled.
A. 5^16
B. 5^9
C. 5^20
D. 5^36
Answer:
The answer is D) 5^36
18x2= 36
Solve 7,124 Divided by 26 =_______ using standard algorithm
Answer:
7,124 divided by 26= 185,224
Step-by-step explanation:
I needed a new TV. I have been looking at ads. I found one that was on sale, from $324.99 to $299.99. I know they are having a 20% off sale next week but if this is a better deal I want to take it! What percentage off is the TV?
Answer:
I mean its 20% off that means you spend less money so you should wait for the deal next week if you want to save more money.
Step-by-step explanation:
a rectanglr has a perimeter of 18 cm. its length is 5 cm greater than its width. find the dimensions.
2. Railyn is saving for a laptop computer. She already has
$800 saved and plans to save $50 a week from her baby
sitting money. If the laptop she wants costs $1,150, how
many weeks will it take her to save enough to buy it?
a. Define the variable and represent the situation with
an equation.
x = number of weeks which is some positive whole number
50x = amount saved after x weeks, when saving $50 per week
50x+800 = add on the 800 she already has
The expression 50x+800 is the total money saved. We set this equal to the 1150 to set up the equation we're after
Answer: 50x+800 = 1150Suppose that f(x) = 3x + 5 and g(x) = -2x + 15
A: Solve f(x)=0
B:Solve f(x) < 0
C:Graph y = f(x) and y = g(x) and label the point that represents the solution to the equation f(x) = g(x)
In parts a-f use the following figure (graph shown in picture)
A: Solve g(x) = 20
B:Solve g(x) = 60
C: Solve g(x) = 0
D:Solve g(x) > 20
E: Solve g(x) _< 60
F:Solve 0 < g(x) < 60
In parts A and B, use the following figure (graph shown in picture)
A:Solve the equation f(x) = g(x)
B: Solve the inequality g(x) < f(x) _< h(x)
Answer:
wait I am looking for solution don't report me
answer in this linkhttps://www.chegg.com/homework-help/questions-and-answers/1-suppose-f-x-3x-5-g-x-2x-15-solve-f-x-0-b-solve-f-x-0-c-solve-f-x-g-x--d-solve-f-x-g-x--e-q84252438
you buy almond milk in 1 gallon containers one portion of waffles requires 2.5 oz of almond milk how many persons can be made with one container?
Answer:
51
Step-by-step explanation:
1 gallon = 128 ounces
128/2.5 = 51.2
51 portions
Yw :D
51 persons can be made with one container.
What is Unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given:
1 gallon = 128 ounces
We have 2.5 oz of almond milk.
So, the number of person who can have it
=128/2.5
= 51.2
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i put brainliest now can u help?
Answer:
Check my previous answer but here you go:
Step-by-step explanation:
-Chetan K
I need help only answer if you’re 100 percent think it’s right
Answer:
5 7/10
Step-by-step explanation:
pls mark me brainliest :))
Answer: 5 7/10
Step-by-step explanation: There are 10 lines between 5 and 6. Each line represents a tenth. Point A is located on the 7th line meaning the fraction point A represents is 5 7/10.
square root of 1,728 ratinal or irratinal
Answer:
41
Step-by-step explanation:
Explain how you can find 5 x 7,303 using expanded form.
Answer:
10605
Step-by-step explanation:
Find the measure of the missing angles.
Answer:
x=63º
y=27º
Step-by-step explanation:
x+27=90º
x=63
What fraction represents a repeated number?
Answer:
1/3
Step-by-step explanation:
pls mark me brainliest :))
luz Maria has $15. She buys a ticket to a movie and a smoothie. How much money does she have left?
Ticket:$9.50
Popcorn:$4.50
Smoothie:$2.85
what is the solution to the problem? show the equations you used to solve the problems
Answer:
15-9.5-2.85=2.65
they have $2.65 left
Step-by-step explanation:
27=3 raised to power (2x_1)
Answer:
x = 2
Step-by-step explanation:
[tex]27=3^{2x-1}\\\\3^{3}=3^{2x-1}\\[/tex]
Bases are equal. So, compare powers
2x - 1 = 3
Add 1 to both sides,
2x = 3+1
2x = 4
Divide both sides by 2
x = 4/2
x = 2
how much do you need to substract from 41/6 to make 6
Answer:
5
Step-by-step explanation:
If is wrong i'm sorry
This section is worth 5 points of 25 total.
Find the least common multiple. Drag the item from the item bank to its corresponding match.
ITEM BANK: Move to go
5, 15, and 35
drag and drop answer here
105
8, 12, and 22
126
drag and drop answer here
264
3,7, and 18
drag and drop answer here
42
5,6, and 7
drag and drop answer here
10
3,6, and 7
drag and drop answer here
ge 1
Answer:
23457385629865309259545935
Step-by-step explanation:
Find T4, given the recursive formula Tn+1=T, * -2, where T1=5 and n=1,2,3,...
O 40
0-3
0-80
O-40
Answer:
gggggggg
Step-by-step explanation:
Answer:
-40
Step-by-step explanation:
Tₙ₊₁ = Tₙ x (-2)
T₁ = 5
T₂ = 5 x -2 = -10
T₃ = -10 x -2 = 20
T₄ = T₃ x -2 = 20 x -2 = - 40
TWO DVDs and one videocassette tape cost $72. One DVD and two videocassette tapes
cost $57. What is the price of each item?
Answer:
dvd cost 36 dollars
casette costs 10.5 dollars
NO LINKS OR ASSESSMENT!!
Part 3: Domain and Range of Graphs
Domain:
- 1 ≤ x < 3 or x∈ [-1, 3)Range:
-4 < y < 4 or y ∈ (-4, 4)Function:
N0- doesn't pass the vertical line test#8Domain:
- 4 < x < 3 or x∈ (-4, 3)Range:
-2 ≤ y < 4 or y ∈ [-2, 4)Function:
YES - passes the vertical line testWhat is negative 12 minus negitive 5 in kcc
Answer:
-7
Step-by-step explanation:
The problem is asking:
What is -12-(-5)
Remember that two minuses right next to each other turn it into a plus.
Therefore,
-12-(-5) = -7
what is the opposite of division
Answer:
multiplication
Step-by-step explanation:
hope this helps you!
Answer:
fusion, unification,attachment, connection etc.
Marcus has a part-time job at the water park. He makes between $66.89 and $72.37 a day. Which is a reasonable amount of money that Marcus makes for working 4 days a week for 9 weeks?
A.
$2,487
B.
$250
C.
$2,369
D.
$2,641
please could someone answer!!
Answer:
0.310973
Step-by-step explanation:
please help with maths
Answer:
a) Modal class: Most frequent ages which is 28 so the modal class is 45 <= x < 55
b) Total Frequency = 120
120 / 2 = 60
Find where 60 lies when we add the frequencies.
It lies 25 <= x < 35
Based on the average predictions of 50 economists, the U.S. gross domestic product (GDP) will expand by 2.5% this year. Suppose the sample standard deviation of their predictions was 2%. At the 10% significance level, test if the mean forecast GDP of all economists is less than 3%.
a. Select the null and the alternative hypotheses.
multiple choice 1
H0: μ = 3; HA: μ ≠ 3
H0: μ ≤ 3; HA: μ > 3
H0: μ ≥ 3; HA: μ < 3
b. Calculate the value of test statistic. (Round final answer to 4 decimal places.)
c. Find the p-value.
multiple choice 2
p-value 0.10
p-value < 0.01
0.01 p-value < 0.025
0.025 p-value < 0.05
0.05 p-value < 0.10
d. At the 10% significance level, can we conclude that the mean forecast GDP of all economists is less than 3%?
multiple choice 3
No, since we do not reject H0.
No, since we reject H0.
Yes, since we do not reject H0.
Yes, since we reject H0.
rev: 10_13_2020_QC_CS-234700, 11_27_2020_Q
The null and hypothesis test; test statistic and the conclusion of the hypothesis are :
[tex] H_{0} : \mu\geq 3 ; H_{1} : \mu < 3[/tex] Test statistic = -1.7678Pvalue < 0.05Yes, since we reject H0The hypothesis :
[tex] H_{0} : \mu \geq 3 [/tex] [tex] H_{1} : \mu < 3 [/tex]The test statistic :
[tex]\frac{\bar{x} - \mu}{\frac{σ}{\sqrt{n}}}[/tex]
Substituting the values into the equation :
[tex]\frac{2.5 - 3.0}{\frac{2}{\sqrt{50}}} = -1.7678[/tex]
The Pvalue, using a Pvalue calculator ; 1 - tailed ; 10% level of significance (0.10) = 0.038
Hence, Pvalue < 0.05
3.) At 10% level of significance ;
We compare the Pvalue and the α
α = 10% = 0.10
Since, Pvalue < α (0.038 < 0.10) ; then the result is significant.
Therefore, the result is significant at α = 0.10
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2)
Jeffrey used
sugar did Jeffrey use
og of his bag of sugar to make some casses and out his bag of sugar to make tuomies. Hon such of his bag of
A)
12/25
ng
11
2
12
3
If the diameter of a circle is increased by 6 centimeters, what is the increase in the circumference of the circle?
Answer: 12[tex]\pi[/tex] cm
Step-by-step explanation:
If the diameter of a circle increased by 6 centimeters it would be 12[tex]\pi[/tex] cm because you still need to multiply 12 and [tex]\pi[/tex] to get your answer for the increase of the circumference.
Calculate the % loss
Cost price of an article =$28
Selling price of the article=$21
The loss in percentage is 25%.
Given that,
Cost price of an article = $28
Selling price of the article = $21
We know that,
A figure or ratio that may be stated as a fraction of 100 is a percentage. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100.
The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The letter "%" stands for it.
Now loss can be calculated by subtracting selling price from cost price,
Therefore,
28 - 21 = 7
Hence there are loss of $7 in business,
Now to calculate percentage loss,
Divide loss by cost price then multiply with 100,
Then,
⇒ (7/28)x100
⇒ 25%
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