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VashaNatasha [74]
3 years ago
12

Send answers I will check if correct

Mathematics
1 answer:
Vikentia [17]3 years ago
7 0

Step-by-step explanation:

x = n of years of mary

x+8= n of years of her bro

So her brother is (x+8)/x times as old as Mary

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PLS ANSWER ASAP! Enter the equation of the line in the form y=mx Where m is slope
AURORKA [14]

Answer:

Well technically its inf due to the arrow, there  are no points showing where to start from and where to end

the way you do it it you just count the amount of units it goes up, in this case for every square its going up 5 units, once you get that number you put that on top of your fraction, then you go over on the x axis till you hit your line (x axis is going by 10 every time). This would be your number on the bottom of the fraction.

Ill do what I can see here

40                                1

----      Simplified to    ----

80                                2

Step-by-step explanation:

Obviously this isnt the answer but thats how you get it, hope this helps

4 0
2 years ago
Factor completly x^8- 1/81. please help:)
Leno4ka [110]

Answer:

{x}^{8}  -  \frac{1}{81}  = ( {x}^{4}  +  \frac{1}{9} )(  {x}^{2}  +  \frac{1}{3} )(x +  \frac{1}{ \sqrt{3} } )(x -  \frac{1}{ \sqrt{3} } )

Step-by-step explanation:

see the picture attached for further explanation.

5 0
3 years ago
Read 2 more answers
7 <br><br><br>Find the value of the expression. Z + 2y for y = 6 and z = 1​
Volgvan

Answer:

13

Step-by-step explanation:

1+2×6=13

boy!!!!!!!!!!!!!!

8 0
3 years ago
The main span of bridge A is 2500 is percent shorter than the main span of bridge B 4100
Gwar [14]

Answer:

16%

percentage is calculated by 100

A. 2500 × 1/100 = 25%

B. 4100 x 1/100 = 41%

41% - 25%

16%

therefore bridge A is 16% shorter than bridge B

5 0
3 years ago
In the following equation, f(x)=2x +7, what is f(-3)?
Helen [10]

Answer:

f(-3) = 1

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

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 2x + 7

f(-3) is x = -3

<u>Step 2: Evaluate</u>

  1. Substitute:                   f(-3) = 2(-3) + 7
  2. Multiply:                       f(-3) = -6 + 7
  3. Add:                             f(-3) = 1
5 0
3 years ago
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