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aniked [119]
4 years ago
10

How to solve -2(5n+6)+5(2-7n)

Mathematics
2 answers:
Nana76 [90]4 years ago
7 0

Answer:

-45n+(-2)

Step-by-step explanation:

-10n+(-12)+10-35n

-45n+(-2)

Alex Ar [27]4 years ago
5 0

Answer:

-45n-2

Step-by-step explanation:

Let's get rid of parenthesis first using distributive property!

-10n-12+10-35n

Combine like terms!

-10n-35n--12+10

-45n-2 would be the final expression

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How do i do 15, 16???
a_sh-v [17]
  • It's very long so I'm not giving answers but here's how i would do it:
  1. use Pythagoras a^2 +b^2 = c^2 where c is the longest side
  2. use sine rule \frac{a}{sin(A)} = \frac{b}{sin(B)} = \frac{c}{sin(C)} where lower cases are the sides, and capitals are their opposite angles.

e.g for 15:

a = 3, b is missing, c = 10

A is missing, B is ?, C is 90

3 0
2 years ago
Solve the formula for a.<br> P= a + b + c<br> a =
Tanzania [10]

Answer:

a = P - b - c

General Formulas and Concepts:

  • Order of Operations: BPEMDAS
  • Equality Properties

Step-by-step explanation:

<u>Step 1: Define equation</u>

P = a + b + c

<u>Step 2: Solve for </u><em><u>a</u></em>

  1. Subtract <em>b</em> on both sides:                    P - b = a + c
  2. Subtract <em>c</em> on both sides:                     P - b - c = a
  3. Rewrite:                                                 a = P - b - c
3 0
3 years ago
Read 2 more answers
Help express y in terms of x
Oliga [24]

Answer:

the answer is y=x+2

Step-by-step explanation:

The row of numbers beside the x each are represented by x in the equation. The equation must be true for all numbers. You must look at each number and find the pattern.

1+2= 3

2+2=4

3+2=5

each x value fits the pattern of being equal to the y value below it when adding two.

hope this helps

6 0
3 years ago
Given the following conditional statement:
USPshnik [31]

If you complete all assignments and review your notes each day, then you will feel prepared for the exams.

Hypothesis (p): you complete all assignments and review your notes each day

Conclusion (q): you will feel prepared for the exams

Converse (q → p): If you feel prepared for the exams, then you completed all assignments and reviewed your notes each day.

Inverse (~p → ~q): If you don't complete all assignments and review your notes each day, then you won't feel prepared for the exams.

Contrapositive (~q → ~p): If you don't feel prepared for the exams, then you didn't completed all assignments and review your notes each day.

Biconditional (p ←→ q): You will feel prepared for the exams if and only if you complete all assignments and review your notes each day.


7 0
4 years ago
Look at the equation below. Identify which equation has no solution
IgorC [24]

Answer:

C

Step-by-step explanation:

24a-22  = -4(1-6a)\\\\\implies 24a-22  = -4+24a\\\\\implies -22 = -4\\\\\text{Which is not true, so no solutions exist.}

4 0
2 years ago
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