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sweet-ann [11.9K]
4 years ago
12

Please help and show work. 15 points.

Mathematics
1 answer:
djyliett [7]4 years ago
7 0
The answer is D
 the x satys the same, the Y reverses positive/negative


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A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is
dezoksy [38]
The answer is the test contains 10 3pt questions and 14 5 pt questions. Any questions please just ask!!! thank you!
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3 years ago
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Find the domain of f(x)=7/x^2-9
LiRa [457]

the domain of the equation is this

{ x | x ≠ 0 }                                                                                                                                      

but I'm not entirely sure this is correct

8 0
3 years ago
This 2 pls i need help with explanation sum
Nataliya [291]

9514 1404 393

Explanation:

<h3>8.</h3>

An exterior angle is equal to the sum of the remote interior angles. Define ∠PQR = 2q, and ∠QPR = 2p. The purpose of this is to let us use a single character to represent the angle, instead of 4 characters.

The above relation tells us ...

  ∠PRS = ∠PQR +∠QPR = 2q +2p

Then ...

  ∠TRS = (1/2)∠PRS = (1/2)(2q +2p) = q +p

and

  ∠TRS = ∠TQR +∠QTR . . . . . exterior is sum of remote interior

  q +p = (1/2)(2q) +∠QTR . . . . substitute for ∠TRS and ∠TQR

  p = ∠QTR = 1/2(∠QPR) . . . . . subtract q

__

<h3>9.</h3>

For triangle ABC, draw line DE parallel to BC through point A. Put point D on the same side of point A that point B is on the side of the median from vertex A. Then we have congruent alternate interior angles DAB and ABC, as well as EAC and ACB. The angle sum theorem tells you that ...

  ∠DAB +∠BAC +∠CAE = ∠DAE . . . . a straight angle = 180°

Substituting the congruent angles, this gives ...

  ∠ABC +∠BAC +∠ACB = 180° . . . . . the desired relation

4 0
3 years ago
8(x − a) = 2(2a − x); x
TEA [102]
X=5
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6

Yoooooo
Ooooooo
Oooooow
7 0
3 years ago
8y+11= 6y + 11<br> solve for y<br> please help
mestny [16]

Answer:

y = 0

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define</u>

8y + 11 = 6y + 11

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

  1. Subtract 6y on both sides:                    2y + 11 = 11
  2. Subtract 11 on both sides:                      2y = 0
  3. Divide 2 on both sides:                          y = 0
7 0
3 years ago
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