Answer:
Step-by-step explanation:
The square root is possible only if y≤0
if y>0 the expression lose meaning, in fact (-)(+)(+) = (-) and a square root of a negative number doesn’t exist. x^2 is a square so it is ever positive if x is not 0
if y≤0 can be rewritten as:
3(-27x^2y^7)^1/2
or if we want simplify the expression:
[tex]3 \sqrt{3^2 * (-3) * x^2 * y^6 * y} = 3^2|x||y|^3 (-3y)[/tex] ^1/2
we have to put the symbol of absolute value between x and y because a x^2 and y^6 are numbers that are ever positive, while x and y^3 can be also negative. Thanks to the simbol of absolute value we can “force” them to be positive
i will mark branlyest
Jess dug a hole 7.3 inches deep on Tuesday. After he dug on Wednesday, the hole was 9.7 inches deep. What distance did Jess dig on Wednesday? A –17 inches B –2.4 inches C 2.4 inches D 17 inches
Answer:
Jess dug 2.4 inches deep on Wednesday.
Step-by-step explanation:
9.7-7.3=2.4 9 . 7
-
7 . 3
___
2 . 4
Answer:
2.4 inches
Step-by-step explanation:
i did the assignment :)
-10 + 15xy = 20 Direct and inverse variation. constant of variation (k)
Answer:
This is an inverse variation, and the constant of variation is k = 2.
Step-by-step explanation:
Direct variation is something like:
y = k*x
Where k is the constant of variation.
So as x increases also increases y.
Inverse variation is something like:
y = k/x
k is the constant of variation.
In this case, if x increases, y decreases.
Now let's look at the equation:
-10 + 15*x*y = 20
Let's isolate y in one side of the equation:
15*x*y = 20 + 10 = 30
15*x*y = 30
y = 30/(15*x) = (30/15)/x = 2/x
y = 2/x
Then we can conclude that this is an inverse variation, with a constant of variation equal to 2.
3x-2y=7
-x+3y=-7
What is the simultaneous answer?
Answer:
x = 5, Y = 4
Step-by-step explanation:
3x -2y = 7
-3x +9y = 21. (multiple the whole thing by 3 to get the xs to cancel)
7y = 28
y = 4
substitute y to find x
3x - 2(4) = 7
3x -8 = 7
3x = 15
x = 5
Please help I’ll mark brainliest please!!!!!
Answer:
C
Step-by-step explanation:
Need help plz with this if nobody don’t mind
Answersheeeeeeeeeeeeeeeeeeeeeeeeeesssh
Step-by-step explanation:
What are two numbers that when multiplied equal -30 and when added together equal 1?
Answer:
5 and 6
Step-by-step explanation:
-5 x 6 = -30
-5 + (6) = 1
x2 + 1x - 30 = 0
(X - 5 ) (X + 6)
To summarize, since -5 and 6 multiply to -30 and add up 1, you know that the following is true:
x2 + 1x - 30 = (X - 5 ) (X + 6)
I need the answer for this pls help me!!!!
DONT PUT THE LINK THAT EVERYONE IS PUTTING BECAUSE THAT LINK IT DOESN’T WORK FOR ME
Answer:
Well Ima put the link, hope it works!
jkjk
The answer here is 240 in^3
Step-by-step explanation:
Well You have a triangular prism which all you need is the base. The base cna be found by finding the area of the surface triangle.
Triangle area formula: 1/2(bh)
Well base is 4 height is 10, 4*10=40. 40/2= 20
Now the heighth given or (h) is 12. TO find the volume jsut multiply the height by the base
20*12=240
Plus don’t click the links, their viruses.
Choose the justification for the step below.
21+7x= 14
7x= -7
a) additive property of equality
b) multiplication/division property of equality
c) distribution
d) none of these
Answer:
a) additive property of equality
Step-by-step explanation:
You canceled the addition of 21 to help simplify the equation.
Pls mark brainliest!PLEASE HELP I REALLY NEED IT
Answer:
The answer is 12 bags
Step-by-step explanation:
This is because the first big rectangle is 48 feet while the smaller one is 12 feet. By adding them together you get 60. 60 divided by 5 is 12 so its 12 bags.
Answer:
12 bags
Step-by-step explanation:
12 x 4 = 48
2 x 6 = 12
48 + 12 = 60
60ft² is the area of the garden.
60 ÷ 5 = 12
12 bags are needed
Please help!! Thanks
I hope this helps you
please help!! dont answer if you dont know
Answer:
6/7
Step-by-step explanation:
4/7×3/2=6/7. ( by doing reciprocal and cancelling four by two)
Answer:
[tex]\frac{6}{7}[/tex]
Step-by-step explanation:
[tex]\frac{4}{7}[/tex] ÷ [tex]\frac{2}{3}[/tex] = [tex]\frac{4}{7}[/tex] × [tex]\frac{3}{2}[/tex] = [tex]\frac{12}{14}[/tex] = [tex]\frac{6}{7}[/tex]
If the m∠8 is 55°, then the measure of ∠6
Answer:
125°
Step-by-step explanation:
......ur welcome.........
Ben has 35 crisps. That is 7 times more than Ryan has.
Answer:
Ryan has 5 crisps
Step-by-step explanation:
If ben has 7 times more than ryan
therfore 35/7= ryan crisps
hence ryan has 5 crisps
Mark as brainliest
I HATE SCHOOL ESPECIALLY MATH
Answer:
Step-by-step explanation:
Answer is in the picture. I promise its not a bad picture.
HELPPPPPPPP!!!!!!!!!!!!
Answer:
A) True
Step-by-step explanation:
The x values, 1 2 3 can go to the y values B L A
However, if there were two lines at 2 1 2 3 going to any of the y values it would not be a function
Here is a picture explaining it.
Answer:
The answer is True or you could say jast A
10th term of 4, 7, 10, 13........ (Please enter number only)
Hint
Use a+(n-1)d
Answer:
31
Step-by-step explanation:
a + (n-1)d where a = first term; n = which number we want; d = common difference.
=> 4 + (10 - 1)3
=> 4 + (9)*3
=> 4 + 27
=> 31
Please help! The question is:
In a marketing survey involving 1,000 randomly chosen people, it is found that 630 use brand P, 420 use brand Q, and 210 use both brands. How many people in the survey use brand P and not brand Q?
By Set theory, 420 many people in the survey use brand P and not brand Q.
What is Set theory?
The mathematical concept of sets, which are well-defined collections of things that are referred to as their members or elements, is known as set theory. As only sets are the subject of pure set theory, the only sets that are taken into account are those whose members are also sets.
The major reason why set theory is significant is because it offers the axioms upon which the rest of mathematics is constructed. We study sets and their characteristics in the area of mathematical logic known as set theory. A collection of items or a group of items is referred to as a set. These items are frequently referred to as elements or members of a set.
P use = 630 people
Q use = 420 people
both P&Q use ie P∩Q = 210 People
use brand P but not brand Q = P/ P∩Q
= 630 - 210
= 420
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If f(x) = x2 and g(x) = 3x + 1, then g(f(2))= ?
Answer:
13
Step-by-step explanation:
f(2) = 2² = 4
g(4) = 3(4) + 1 which is 13
5,20,80
what is the 6th term in the sequence
Answer:
5120
Step-by-step explanation:
5 20 80 320 1280 5120
it multiplies by 4 each time.
Determine the length of AB.
*HELP* GEOMETRY
Answer:
AB=3
Step-by-step explanation:
tell me if you want detailed proof
Angles in circles please help
Answer:
x = 80 degrees
Step-by-step explanation:
it says right there
9514 1404 393
Answer:
x = 80°
Step-by-step explanation:
The measure of an arc is the same as the measure of the central angle it subtends.
x = 80°
(3^7)/(3^4)×33
Plz tell fast
Answer:
[tex] \Huge \bf \underline {\underline{Given}}[/tex] [tex] : \implies \sf\dfrac{ {3}^{7} }{ {3}^{4} } \times 33[/tex][tex]\Huge\bf\underline{\underline{Solution}}[/tex][tex] : \implies \sf\dfrac{ {3}^{7} }{ {3}^{4} } \times 33[/tex][tex]{ : \implies \sf\dfrac{3 \times 3 \times 3 \times 3 \times 3 \times 3 \times 3}{3 \times 3 \times 3 \times 3} \times 33}[/tex][tex]{ : \implies \sf\dfrac{ \cancel{3} \times \cancel{ 3}\times \cancel{3}\times \cancel{ 3}\times 3 \times 3 \times 3}{\cancel{ 3} \times \cancel{ 3} \times \cancel{ 3} \times \cancel{ 3}} \times 33}[/tex][tex] : \implies \sf3 \times 3 \times 3 \times 33[/tex][tex] : \implies \sf27 \times 33[/tex][tex]: \implies \sf891[/tex][tex] \bigstar \underline {\boxed {\red{ \bf{891}}}}[/tex]-3/2+2 hi jjjjjjjjjjjjjjj
Answer:
1/2 is the answer
Step-by-step explanation:
1) Make the denominators the same.
[tex] - \frac{3}{2} + 2 \times \frac{2}{2} [/tex]
2) Simplify. Denominators are now the same.
[tex] - \frac{3}{2} + \frac{4}{2} [/tex]
3) Join the denominators.
[tex] \frac{ - 3 + 4}{2} [/tex]
4) Simplify.
[tex] \frac{1}{2} [/tex]
Therefor, the answer is 1/2 and in decimal form the answer will be 0.5.
Find the missing angle (x) in the diagram below. Show your work. (doing online school)
Can someone please help me solve this I don’t have a right calculator to do it!
Answer:
Step-by-step explanation:
You can solve it using the calculator that came with windows -- as far back as windows 7. It probably goes back even further, but that's all I can guarantee. Your phone might be able to do it as well.
y = 25000 * 0.007^5
y = 25000 * 1.6807 *10^-11
y = 0.00000042 is what my calculator gives.
Windows can probably do better.
The bed of a dump truck has dimensions shown below the truck is delvering salt to a city in preperation for a snowstorm if the city needs 800 cubic feet of salt how many trips will they need to make
Answer:
5 trips
Step-by-step explanation:
The volume of bed of dump truck :
From the dimension given in the attached picture ;
Volume of bed = 4 ft * 8 ft * 6 ft = 192 ft³
This means dump truck can convey 192 ft³ of salt per trip
Number of trips required to convey 800 ft³ of salt :
800 ft³ / 192 ft³
= 4.166
= 5 trips
The number of songs Oliver has downloaded this year, divided by 12, is equal to 24. What is an equation that represents this situation, and how many songs has Oliver downloaded?
A. 12d = 12: d = 1 song downloaded
B. 12d = 24: d = 2 songs downloaded
C. d12 = 24: d = 288 songs downloaded
D. b12 = 12: d = 144 songs downloaded
Answer:
c
Step-by-step explanation:
24×12=288 songs downloaded
this is because you have to do opposite operations according to one of the operations of math
An equation that represents the given situation is d/12 =24, and the number of songs Oliver has downloaded is 288. So, option C is the correct answer.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Given that, the number of songs Oliver has downloaded this year, divided by 12, is equal to 24.
Let the number of songs downloaded be d.
So, the equation is d/12 =24
d=288
The equation to represent the scenario is d/12 =24. Therefore, option C is the correct answer.
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The number of songs Oliver has download this year divided by 12 equals 24 what is an equation that represents this situation and how many songs has Oliver downloaded
Answer:
/12 = 24: d = 288 songs downloaded.
Hope this helps. :)
The equation that represents the given situation is x/12 = 24 and the number of songs downloaded by Oliver is 288.
What is an equation?Mathematical expressions with two algebraic symbols on either side of the equal (=) sign are called equations.
This relationship is illustrated by the left and right expressions being equal. The left-hand side equals the right-hand side is a basic, straightforward equation.
As per the instructions given in the question,
Assume that the number of songs downloaded by Oliver in a year is x.
Then, it is divided by 12 and equal to 24.
So, the equation will be,
x/12 = 24
And, the number of songs downloaded by him will be,
x = 24 × 12
x = 288 songs.
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Simplify the expression: 6a + 9b - c - 9a +2b + 3c
Answer:
-3a + 11b + 2c
Step-by-step explanation:
If anyone is really good at math please hmu ASAP.
Answer:
Same I'll help you all if you guys try to help me with my recent question.
Step-by-step explanation: