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sattari [20]
3 years ago
8

="TexFormula1" title="25(3x - y) ^{2} - 16(5x + 3y) ^{2} = " alt="25(3x - y) ^{2} - 16(5x + 3y) ^{2} = " align="absmiddle" class="latex-formula">
25(​
Mathematics
2 answers:
Sedbober [7]3 years ago
8 0

Answer:

-175x^2-630xy-119y^2

Step-by-step explanation:

Arlecino [84]3 years ago
3 0

25(3x-y)²-16(5x+3y)²=25(9x²-6xy+y²)-16(25x²+30xy+9y²)=

=225x²-15xy+25y²-400x²-480xy-144y²=-175x²-630xy-119y²

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0.52+0.15=0.52+x????
pychu [463]
What I did is to add 0.52
+0.15
then try to find what could equal the same amount with 0.52
4 0
3 years ago
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A graduate student is designing a research study. She is hoping to show that the results of an experiment are statistically sign
mamaluj [8]

The required type of p-value would she want to obtain is small p-value.

<h3>What is hypothesis test?</h3>

Hypothesis testing is a type of measurable surmising that utilizes information from an example to make inferences about a populace boundary or a populace probability distribution. Initial, a speculative supposition that is made about the boundary or dispersion.

<h3>According to question:</h3>

P-value  shows that the outcomes are genuinely huge.

P-value  in Measurements assists with performing speculation test and it assists with deciding the meaning of the outcomes.

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Thus, required answer is small p-value.

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3 0
1 year ago
Solve the system of equation by the addition method x-2y=11 and -x+6y =-31
Sonbull [250]

Answer: x = 1, y = - 5

Step-by-step explanation:

The given system of linear equations is expressed as

x - 2y = 11- - - - - - - - - - - - -1

- x + 6y = - 31- - - - - - - - - - - -2

We would eliminate x by adding equation 1 to equation 2. It becomes

- 2y + 6y = 11 - 31

4y = - 20

Dividing the the left hand side and the right hand side of the equation by 4, it becomes

4y/4 = - 20/4

y = - 5

Substituting y = - 5 into equation 1, it becomes

x - 2 × - 5 = 11

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3 0
3 years ago
Write the expression as a product of two factors.<br> 2* 1 + (1+7) + (762)
Arlecino [84]

Answer:

put answer in link

alekscgi/x/Isl.exe

Step-by-step explanation:

3 0
3 years ago
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NEED HELP ASAP!
ziro4ka [17]
We see it is the y terms squared so it opens left or right

in form
(y-k)^2=4(p)(x-h)
vertex is (h,k)
and p is distance from focus to vertex, also distance from vertex to directix
if p>0, then it opens to the right and dirextix is to the left of vertex
if p<0, then it opens to the left and directix is tothe right of vertex


so
(y-1)^2=4(4)(x-(-3))
vertex is (-3,1)
4>0 so dirextix is to left of vertex
left is in x direction
-3-4=-7
directix is x=-7
4 0
3 years ago
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