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mel-nik [20]
3 years ago
6

ANSWER ALL FOR BRAINLIEST AND SHOW YOUR WORK

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
5 0

Answer:

Step-by-step explanation:

2. 11x + 5y - 6

3. - 97x -21y + 100

That's all i could do hope it helps :l

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I am a number. I am the
LenaWriter [7]

Answer:

3

Step-by-step explanation:

to find side length of squares take square root of areas

first square side length: 9

second square side length: 6

difference between 9 and 6 is subtraction, 9-6=3

4 0
3 years ago
What is the value of x?
Molodets [167]

Answer:

x = 4√5

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Order of Operations: BPEMDAS

<u>Trigonometry</u>

  • Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

<u>Step 1: Define</u>

We are given a right triangle. We can use Pythagorean Theorem.

a = 19

b = x

c = 21

<u>Step 2: Find </u><em><u>x</u></em>

  1. Substitute:                    19² + x² = 21²
  2. Isolate <em>x</em> term:               x² = 21² - 19²
  3. Evaluate:                       x² = 441 - 361
  4. Subtract:                       x² = 80
  5. Isolate <em>x</em>:                       x = √80
  6. Simplify:                        x = 4√5

And we have our final answer!

8 0
3 years ago
What is the value of a in the equation 5a – 10b = 45, when b = 3?
LenKa [72]
5a - 10*3 = 45
5a - 30 = 45
5a = 45 + 30
5a = 75
a = 15
6 0
3 years ago
Read 2 more answers
Find the value of 11 +22+33 + ... + 1100.
ella [17]

Answer:

sum of terms: 55550

Explanation:

\sf S_n = \dfrac{n}{2} (u_{start}+u_{end}})

Here the number of terms:

1100 ÷ 11 = 100

Using the Formula:

\sf \dfrac{100}{2} (11+1100)

\sf 55550

5 0
1 year ago
Which of the following fractions equal to 1/4
shutvik [7]

Answer:

D

Step-by-step explanation:

A  no   = 1/5

B no   = 4

C  no   = 1/3

D   yes

E     no = 17/50

4 0
2 years ago
Read 2 more answers
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