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Anon25 [30]
3 years ago
8

Evaluate expression of 2ac

Mathematics
1 answer:
miss Akunina [59]3 years ago
4 0
We would do 2*a=4*c=6
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Point E is between points D and F and DE=27 and EF =34.
asambeis [7]
If e is between them, then the distances DE and EF add to the total, DF. So the answer is just 27 + 34 which is 61, A

4 0
3 years ago
I'm having trouble figuring out what the equation is for the trend line and what the slope is
Talja [164]

Answer:

The equation for the trend line would be y = -1/100x + 25

Step-by-step explanation:

In order to find the trend line, we first need to find the slope. To do so, we need to find two points on the line. The points we'll use are (0, 25) and (2500, 0). Next, we use the slope formula.

m(slope) = (y2 - y1)/(x2 - x1)

m = (0 - 25)/(2500 - 5)

m = -25/2500

m = -1/100

Now that we have this we can use the slope and the intercept in slope intercept form to model the trend line.

y = mx + b

y = -1/100x + 25

3 0
3 years ago
Find the sum of (x + 5),(-4x - 2) and (2x - 1)
Elina [12.6K]

Answer:

-x + 2

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>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

(x + 5) + (-4x - 2) + (2x - 1)

<u>Step 2: Simplify</u>

  1. Combine like terms (x):                     -x + 5 - 2 - 1
  2. Combine like terms (Z):                     -x + 2
7 0
3 years ago
Read 2 more answers
The dot product of u with itself is 12. What is the magnitude of u?
Brilliant_brown [7]
Dot product is 
a*b = |a|*|b|*cosα.
In our case
u*u =|u|*|u|*cos 0
u*u =|u|*|u|
12=|u|²
|u|=√12=√(4*3)=2√3
Answer: <span>D. 2√3</span>
5 0
3 years ago
Fiona and her friends went to a smoothie shop. They ordered three strawberry smoothies and two protein shakes for a total of $24
IRINA_888 [86]
I believe the answer is 5.15 .
4 0
3 years ago
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