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nekit [7.7K]
2 years ago
6

How do i simplify this problem, for geometry. specifically ALEKS 3(x+5)-5x

Mathematics
1 answer:
Veseljchak [2.6K]2 years ago
8 0

Answer:

The simplified version of this expression is

-2x + 15

Hope this helps!!

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Please help me! I REALLLY need my math grade to go up!!! PLEASE HELP!!!!
melomori [17]

Answer:

Hi I only know part be yes the figures are congruent

Step-by-step explanation:

There the same shape, same size so yes they are congruent

6 0
2 years ago
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I need the answers for this question.
nadya68 [22]

Answer:

7

Step-by-step explanation:

7 0
3 years ago
the ratio of windows to floors in an office is 18:2. there are 126 widows in the buliding. how many floors does the office bulid
Vinvika [58]

Answer:

14 floors

Step-by-step explanation:

The number of floors that the buliding contain,

(floors/windows) × number of the windows

; 2/18 × 126

; 2 × 7

; 14 floors

5 0
3 years ago
The sail of a boat is in the shape of a right triangle, as shown below:
dolphi86 [110]
Answer: Choice C
7 divided by cosec 50 degrees

=====================================

Explanation:

Abbreviations:
sec = secant
cot = cotangent
cosec = cosecant (csc is also a widely used abbreviation)

-----------------

Let the horizontal leg be x

This leg is opposite the angle 50 degrees. The hypotenuse is 7

Opposite = x
Hypotenuse = 7

We'll either use the sine rule or the cosecant (csc) rule
sine = opposite/hypotenuse
cosecant = hypotenuse/opposite

Since "sine" is nowhere to be found in the answer choices, we'll use the cosecant rule

-----------

cosecant = hypotenuse/opposite
csc(angle) = hypotenuse/opposite
csc(50) = 7/x
x*csc(50) = 7
x = 7/csc(50)

This is why the answer is choice C

6 0
2 years ago
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Find the Midpoint of the coordinates (-1,4) and (5,7)
Rainbow [258]

Answer:

(2,\frac{11}{2})

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Algebra I</u>

  • Midpoint Formula: (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

Step-by-step explanation:

<u>Step 1: Define</u>

Endpoint (-1, 4)

Endpoint (5, 7)

<u>Step 2: Find midpoint</u>

  1. Substitute:                    (\frac{-1+5}{2},\frac{4+7}{2})
  2. Add:                              (\frac{4}{2},\frac{11}{2})
  3. Divide:                          (2,\frac{11}{2})
5 0
2 years ago
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