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ollegr [7]
3 years ago
15

7th grade please explain not just the answer sorry its blurry

Mathematics
2 answers:
antiseptic1488 [7]3 years ago
6 0
<h3>Hey there! </h3><h3>You could simply solve this equation by doing PEMDAS </h3><h3>Parentheses </h3><h3>Exponents </h3><h3>Multiplication </h3><h3>Division </h3><h3>Addition </h3><h3>Subtraction </h3><h3>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</h3><h3>(-5)^2 -2*(-9) +6</h3><h3>(-5)^2 = (-5) (-5) </h3><h3>(-5)(-5) =25</h3><h3>25 - 2(-9) +6 </h3><h3>2(-9) = -18</h3><h3>25 - (-18) +6 </h3><h3>We have DOUBLE <u>negatives</u>, so this means we have a <u> positive result </u></h3><h3>25 + 18 = 43 </h3><h3>43 + 6 = 49</h3><h3>Answer/ Result: 49 </h3><h3>Good luck on your assignment and enjoy your day! </h3><h3>~LoveYourselfFirst:)</h3>
aleksandrvk [35]3 years ago
3 0

Answer:

25-(-18)+6

=25+18+6

=49

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What is the equation of the line that is parallel to the line y =1/3 x + 4 and passes through the point (6, 5)?
lianna [129]

Answer:

y = \frac{1}{3} x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = \frac{1}{3} x + 4 ← is in slope- intercept form

with slope m = \frac{1}{3}

Parallel lines have equal slopes , then

y = \frac{1}{3} x + c ← is the partial equation

To find c substitute (6, 5) into the partial equation

5 = 2 + c ⇒ c = 5 - 2 = 3

y = \frac{1}{3} x + 3 ← equation of parallel line

5 0
3 years ago
Find the first derivative?
professor190 [17]
You could do the question the way it is  written, but it is far easier to bring the negative power up to the numerator.

y= x^2 - 3. The derivative of that is
dy/dx = 2x The three is a constant and is always dropped when a derivative is taken
d(-3)/dx = 0

If you are a purist and want to solve the question the way it is written, you could do it this way.

dy/dx = d(1)/dx x^-2 - d(x^-2)/dx * 1
             ======================                    
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dy/dx =  - (-2 x^ - 3) / x^-4

dy/dx = 2 x^-3 * x^4
dy/dx = 2 x^(-3 + 4)
dy/dx = 2x ^ 1
dy/dx = 2x <<<<< answer
8 0
3 years ago
Is a rhombus always a square?
Nikolay [14]

Answer:

yes

Step-by-step explanation:

8 0
3 years ago
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ozzi

Answer:

41%

Step-by-step explanation:

Given the cash price is $500, the hire purchase price is calculated by summing the installment and down-payment:

Hire \ Purchase \ Price=Installments +Downpayments\\\\=8\times 72.50+125\\\\=705

#Percentage increase in price is the difference between the hire purchase price and list price as a percentage of the list price:

\bigtriangleup Price=705-500\\\\=205\\\\\%\bigtriangleup Price=\frac{\bigtriangleup Price}{500}\times 100\%\\\\\\=\frac{205}{500}\times100\%\\\\=41\%

Hence, the % increase in price is 41%

7 0
3 years ago
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irga5000 [103]

Answer:

What Do you need help with?

Step-by-step explanation:

7 0
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