Answer:
This is wrong But if you ask me what is -4= -2² and -20= -2×10¹
Answer:
ok ido not know
Step-by-step explanation:
In a proportional relationship, where k=1, what does y equal when x=5?
A. 5
B. 1/5
C. 0.5
D. 0.2
Answer:
5
Step-by-step explanation:
The question says a proportional relationship, of not stated otherwise, this means a directly proportional relationship, where,
y=kx
Now if, k=1, substituting in the equation would give,
y=x,
Therefore, whatever the value of x is, so is that the value of y,
thus, if x=5,
y=5
A library just hired Brittany to write reviews on different books. The job requires her to read 3 books/week. If Brittany reads at this pace for 12 weeks , how many books will she read?
Answer:
36 books in 12 weeks
Step-by-step explanation:
All you have to do is multiply 3 books a week by 12 weeks....
1 week 3b 7 weeks 21b
2 weeks 6b 8 weeks 24b
3 weeks 9b 9 weeks 27b
4 weeks 12b 10 weeks 30b
5 weeks 15b 11 weeks 33b
6 weeks 18b 12 weeks 36b
Can someone help me out? :P
Hi! plz help ty! this is from khan academy btw! ty
Answer:
z=2
Step-by-step explanation:
When you subtract a negative, you are adding the number, so the question simplify into 14= z + 12, which is 2
Brainliest Maybe?
HELLPPP please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
B, A, C
Step-by-step explanation:
it shouldve been B then A then C
5/6−(1/8÷3/4) please help i will give brainliest
Deepak wrote an equation to show the total value of a stack of quarters. The equation is y = 0.25 x, where y represents the total value and x represents the number of quarters. Which table below represents this information?
A 2-column table with 4 rows. Column 1 is labeled Number of quarters with entries 12, 16, 20, 24. Column 2 is labeled Total value (in dollars) with entries 3, 4, 5, 6.
A 2-column table with 4 rows. Column 1 is labeled Number of quarters with entries 3, 4, 5, 6. Column 2 is labeled Total value (in dollars) with entries 12, 16, 20, 24.
A 2-column table with 4 rows. Column 1 is labeled Number of quarters with entries 4, 12, 20, 28. Column 2 is labeled Total value (in dollars) with entries 1, 2, 3, 4.
A 2-column table with 4 rows. Column 1 is labeled Number of quarters with entries 1, 2, 3, 4. Column 2 is labeled Total value (in dollars) with entries 4, 12, 20, 28.
Answer:
a
Step-by-step explanation:
The answer is A
It is a because it is the only one that does the math correctly.
PLZ HELP IMAGE BELOW IS THE question TY btw this is from khan if that helps ty!
Answer:
[tex]a-(-b)>a[/tex]
Step-by-step explanation:
ok so lets round =-3 and b=2
ok so now lets solve -3-(-2)=-3+2
remember when you subtract a negative it is just like adding
so -3+2=-1 and -1 is greater than -3
i hope this helps
Help 15 points brainliest to whoever is right (ONLY IF YOU'RE RIGHT)
Answer:
Step-by-step explanation:
Absolute value inside the brackets will always be positive*
1. 7
2.15
3.0
4. -5
5.-3
6.3
7.17
8.5
9.-101
10.0
11.16
12.1
Hope this helped!
If you put that same $1000 with a different company that pays 5% and compounds every six months, how much money will you have on your 18th birthday? Show all your work.
Name a unit of measurement that is about the same size of the weight or mass of 20 staples.
a Yard or meter
b Ton
c Kilogram or pound
d Gram
Answer:
d
Step-by-step explanation:
This is because mas and weight is converted into grams then kilograms and more.
Pls someone help! I will mark brainliest!!!
Please tell me if my answer is correct.
Simple Interest
Answer:
yes
Step-by-step explanation:
Correct-a-mundo !
4000 * .06 * 5 = 1200
Sorry that the answers are long! ONLY GIVE BRANLIST FOR RIGHT ANSWER! Points (−7, 5) and (7, 5) on the coordinate grid below show the positions of two players of a football team:
Which statement best describes the relationship between the positions of the two players?
Player 1's position is Player 2's position reflected across the x-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.
Player 1's position is Player 2's position reflected across the x-axis; only the signs of the y-coordinates of Player 1 and Player 2 are different.
Player 1's position is Player 2's position reflected across the y-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.
Player 1's position is Player 2's position reflected across the y-axis; only the signs of the y-coordinates of Player 1 and Player 2 are different.
Answer:
Player 1's position is Player 2's position reflected across the y-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.
Step-by-step explanation:
Answer:
Player 1's position is Player 2's position reflected across the x-axis; only the signs of the x-coordinates of Player 1 and Player 2 are different.
Since you flip across the grid you would get the same coordinates but the number things would be answer blah blah blah
listen I know this is the answer I don’t have to explain myself.
If a ballpoint pens sell for 3 for 65 cents how many pens may be brought for $9.75?
PLZ HELP THIS ASSIGNMENT IS DUE IN 2 HOURS I WILL GIVE BRAINLIEST!!
Answer:
About 45 pens would be bought
GIVEN,
3 pens can be bought for 65 cents
☞TO FIND
The number of pens that can be bought for $9.75
ANSWER
$9.75 = 975 cents
Therefore the number of pens that can be bought for $9.75 is,
[tex] \frac{975}{65} \times 3 \\ = 15 \times 3 \\ = 45[/tex]
So 45 pens can be bought
True or false: Scientific evidence is a clue that helps answer a question or explain something. I will mark brainiest
Answer:
true
Step-by-step explanation:
Answer:
true
Step-by-step explanation:
because with evidence you can verify if a claim is correct, leading you to an answer.
The equation
P=2(x+5)+3(x−4)
can be used to determine the perimeter of Pentagon QRSTW. When the perimeter is 70 inches, what is the value of x?
Answer:
5x-2Step-by-step explanation:
2x+2.5+3(x-4)
2x+10+3(x-4)
2x+10+3x+3.-4
2x+10+3x-12
5x+10-12
5x-2
please help me!
Solve the system of linear equations by substitution
y = 3x - 3
HELP MEEHHHHHHHHHHHHH.
Answer:
i think it is 15,840 because if you multiply 3 by 5,280 you will get 15,840
Step-by-step explanation:
3)_______ _______(s) because the denominator label is for a unit of one. Scale drawings incorporate the ratio as a factor---called the 4) _________ factor. This ratio determines if the original image is 5)_____________ or shrunk. If the Scale Factor is --
6)________________ than 1 ; the original image is shrunk; Conversely, if the SF is >1, then the image is 7)_______________by that ratio. This is like when they dilate you pupils or when you hit the + symbol on the cell phone or computer screen.
I beg yall help me out.....I am so done with life.
Given that the expression “p dollars for every q items” describes a unit price, which statement must be true?
p = 1
p = q
q = 1
pq = 1
Describe and Correct the error.
Answer:
they forgot to add the 3x
Step-by-step explanation:
Ed is 7 years older than Ted. Ed’s age is also times Ted’s age. How old are Ed and Ted?
A.
Ted is 15 years old, and Ed is 22 years old.
B.
Ted is 14 years old, and Ed is 21 years old.
C.
Ted is 13 years old, and Ed is 20 years old.
D.
Ted is 12 years old, and Ed is 19 years old.
Answer:
Ted is 14 years old, and Ed is 21 years old.-B
Step-by-step explanation:
\sqrt{53+20\sqrt{7}} can be written in the form a+b\sqrt{c}, where a, b, and c are integers and c has no factors which is a perfect square of any positive integer other than 1. Find a+b+c.
=====================================================
Explanation:
Since the range of [tex]y = \sqrt{x}[/tex] is [tex]y \ge 0[/tex], this means that [tex]\sqrt{53+20\sqrt{7}}[/tex] cannot be negative.
-----------------------------------
Let's set the given nested radical expression equal to the form a+b*sqrt(c), and then square both sides to see what happens
[tex]\sqrt{53+20\sqrt{7}} = a+b\sqrt{c}\\\\\left(\sqrt{53+20\sqrt{7}}\right)^2 = \left(a+b\sqrt{c}\right)^2\\\\53+20\sqrt{7} = a^2+2ab\sqrt{c}+b^2c\\\\53+20\sqrt{7} = (a^2+b^2c)+2ab\sqrt{c}\\\\[/tex]
Equating the corresponding parts shows that
[tex]53=a^2+b^2c \text{ and } 20\sqrt{7} = 2ab\sqrt{c}\\\\[/tex]
Therefore c = 7 must be the case to allow the radicands to match up.
-----------------------------------
Since c = 7, we can update the first equation like so
[tex]53=a^2+b^2c\\\\53=a^2+b^2*7\\\\53=a^2+7b^2\\\\[/tex]
We'll come back to this later.
-----------------------------------
Focus on [tex]20 = 2ab\sqrt{7}[/tex]
Note how 20 and 2ab are coefficients outside the root. So 20 = 2ab leads to ab = 10.
Here are all the ways to multiply to 10 where a,b are integers
1*10 = 10-1*(-10) = 102*5 = 10-2*(-5) = 10So we could have these possibilities.
a = 1, b = 10a = 10, b = 1a = -10, b = -1a = -1, b = -10a = 2, b = 5a = 5, b = 2a = -5, b = -2a = -2, b = -5If you try all of those a,b combinations with [tex]53 = a^2 + 7b^2[/tex], then you should find that a = 5 and b = 2 works. I'm skipping a bunch of steps here. All you basically do is plug and chug.
Due to symmetry, we could have a = -5 and b = -2 as another solution to [tex]53 = a^2 + 7b^2[/tex]. However, if a < 0 and b < 0, then [tex]a+b\sqrt{c}[/tex] would be negative which contradicts the fact that [tex]\sqrt{53+20\sqrt{7}}[/tex] is positive. So we'll ignore any case where a,b are negative.
Therefore, the only combination that works is a = 5 and b = 2
-----------------------------------
Overall, we found that
a = 5b = 2c = 7And therefore,
[tex]\sqrt{53+20\sqrt{7}} = a+b\sqrt{c}\\\\\sqrt{53+20\sqrt{7}} = 5+2\sqrt{7}\\\\[/tex]
You can confirm this with your calculator by taking advantage of the idea "If x = y, then x-y = 0". In other words, if you subtract the left and right sides, you should get 0 as a result (the order of subtraction doesn't matter in this case). Don't forget to use parenthesis correctly, or you may not get 0. It might help to think of it as the form (x) - (y) = 0.
After we confirmed we have the correct a,b,c values, we simply add them up to get a+b+c = 5+2+7 = 14.
Coach Siegel has 4/5 yards of string. He needs to make 10 smocks. How much string does each smock get?
a 4/50
b 50/4
c 40/5
d 5/40
Please give me the answer to these right away.
Answer:
???
Step-by-step explanation:
If ur correct i will give u brainliest!
Answer:
x/13.5 feet = 12 inches/1 foot
So, the answer would be
162 inches/13.5 feet = 12 inches/1 foot
Help Mee With This Question Please :(
Answer:
what is the question
Step-by-step explanation:
find 139.65-59.623 express your answer in decimal form
Answer:
80.027
Step-by-step explanation:
139.65 - 59.623= 80.027
hope this helps!
7a = 49 plzzzzzzzzzzzzzzz help me
Answer:
a=7
Step-by-step explanation: