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RoseWind [281]
2 years ago
11

I need help understanding this plz

Mathematics
2 answers:
lozanna [386]2 years ago
7 0
Uuuuuuu I don’t know.
Hatshy [7]2 years ago
6 0

Step-by-step explanation:

ZDOY is a parallelogram=>ZD=YO and ZY=DO and the diagonals bisect eachother

ZD=42

DO=25

YV=1/2YD=30

ZV=1/2Z0=OV=18

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According to the rational root theorem, what are all the potential rational roots of f(x)=5x^3-7x+11
Genrish500 [490]

Answer:

\pm11,\pm1,\pm\frac{11}{5},\pm\frac{1}{5}

Step-by-step explanation:

The given polynomial function is

f(x)=5x^3-7x+11

According to the Rational Roots Theorem, the ratio of all factors of the constant term expressed over the factors of the leading coefficient.

The potential rational roots are

\pm\frac{11}{1}=\pm11

\pm\frac{1}{1}=\pm1

\pm\frac{11}{5}

\pm\frac{1}{5}

4 0
3 years ago
(n + 12) x 5 + 7n Need equivalent expression
astraxan [27]

Answer:

12n + 60

General Formulas and Concepts:

<u>Pre-Algebra</u>

Distributive Property

Order of Operations: BPEMDAS

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

<u>Algebra I</u>

  • Terms/Coefficients

Step-by-step explanation:

<u>Step 1: Define</u>

(n + 12) × 5 + 7n

<u>Step 2: Simplify</u>

  1. Distribute 5:                     5(n) + 5(12) + 7n
  2. Multiply:                            5n + 60 + 7n
  3. Combine like terms:        12n + 60
6 0
3 years ago
Juan got on an elevator at the middle floor of a building, went up 4 floors, down 3 floors, up one floor, down 9 floors, where h
xenn [34]
There are 14 floors in the building, because since Juan went up 4 floors, down 3 floors, and up one floor; so we know that he is 2 floors above from where he originally started. Once he went down 9 floors he passed the starting point and went to the bottom of the building. So, the middle must have been the 7th floor. Once I knew that I multiplied 7*2 and it got me 14. So in total there are 14 floors. I hope this helped ^^
5 0
3 years ago
5x + 2 =3x - 14<br> Simplify and solve the following<br><br><br> hey
Elina [12.6K]

Answer:

x=-8

Step-by-step explanation:

5x-3x=-2-14

2x=-16

x=-8

3 0
2 years ago
How do you put these in order from least to greatest? 13%, 1/3, 0.35, 0.25?
labwork [276]
13% 0.25 1/3 0.35 least to greatest
3 0
3 years ago
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