What is the answer for this question -12(-3)+7

Answers

Answer 1

Answer: -12(-3) + 7

First, simplify 12 × (-3) to get -36. / Your problem should look like: $36 + 7$
Second, add 36 + 7. / Your problem should look like: 43

Answer: 43

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Help pleaseWhich equations in point-slope form are equations of the line that passes through the point (−7, 5) and (−4, 1)?

Choose exactly two answers that are correct.

A.y-7= -3/4(x+5)

B.y-5= -4/3(x+7)

C.y+4= -3/4(x+1)

D.y-1= -4/3(x+4)

Answers

$General\ equation\ for\ line\ in\ slope\ intercept\ form:\n\ny=ax+b\n\nTo\ find\ a\ and\ b\ substitude\ points\ (-7,5)\ (-4,1)\ into\ equation\n\n \left \{ {{5=-7a+b}\ \ \ \ \atop {1=-4a+b\ |*-1}} \right.\n\n \left \{ {{5=-7a+b}\ \ \ \ \atop {-1=4a-b}} \right.\n\n+----\n\nAddition\ method\n\n4=-3a\ \ |:(-3)\n\na=-(4)/(3)\n\nb=5+7a=5+7*(-(4)/(3))=5-(28)/(3)=-4(1)/(3)\n\Answer\ y=-(4)/(3)x-4(1)/(3)\n\nChecking\ solution:\ny-5=-(4)/(3)(x+7)$ $y-5=-(4)/(3)x-(28)/(3)\n\ny=-(4)/(3)x-(28)/(3)+5\n\ny=-(4)/(3)x-4(1)/(3)\n\nAnswer:B \ and\ D.$

an easy way to do it is subtituet (-7,5) and (-4,1) into the equations and find out which ones check. remember (x,y)

so A
if we try (-7,5)
5-7=-3/4(-7+5)
we can immediately see that -2 is not equal to -3/4(-2)
so A is wrong

B
if we try (-7,5)
5-5=-4/3(-7+7)
0=-4/3(0)
0=0
so B is correct

C
if we try (-7,5)
5+4=-3/4(-7+1)
9=-3/4(-6)
9 is not equal to 18/4
so C is wrong

D
if we try (-7,5)
5-1=-4/3(-7+4)
4=-4/3(-3)
4=12/3
4=4
D is correct

If you wanted to try the second point (-4,1) in B and D
B
1-5=-4/3(-4+7)
-4=-4/3(3)
-4=-12/3
4=4
B is still correct

D
1-1=-4/3(-4+4)
0=-4/3(0)
0=0
D is still correct

so the answers are B and D

What is a reasonable estimate for -98.6 divided by 3.8

Answers

-98.6/3.8=-25.94 because if you line the decimals up and then add them you will get -25.94

-98.60

+ 3.80

-25.94

I know its a lot but i dont understand it i have tried to understand it

Answers

The method for this kind of thing is PEMDAS
1. Parentheses
2. Exponents
3. Multiply
4. Add
5. Subtract
Do it in this order.
Tell me if you need more help.

The center on the basketball team scored 19 of the team’s 98 points. What percent of the points did he score?

Answers

19/98=.1938= 19.38% of the points

19 x 100/98 = 19.387755102%

Please help me I need this today

Answers

a^2 + b^2 =c^2

30^2+40^2 =50^2

900+1600=2500

2500=2500

Choice C

At Roberts Middle school 11/30 of the books in the library were more than 50 years old. At the end of the year 1/10 of those books were given to charity.What fraction of all the books was given to charity?

Answers

Solution:
$( (11)/(30) )( (1)/(10) ) = (11)/(300)$

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Give a example of a multi-step equation for each of the following solution

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