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pickupchik [31]
3 years ago
12

Need help like now please

Mathematics
1 answer:
strojnjashka [21]3 years ago
5 0

Answer:

-46 -35 -10 y -7 7 8   13 35  x

Step-by-step explanation:

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Evalute The Expression 2b+5=2
Snezhnost [94]

Answer:

b = -3/2

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

Equality Properties

Step-by-step explanation:

<u>Step 1: Define Equation</u>

2b + 5 = 2

<u>Step 2: Solve for </u><em><u>b</u></em>

  1. Subtract 5 on both sides:                    2b = -3
  2. Divide 2 on both sides:                        b = -3/2
7 0
2 years ago
A builder buys bricks at the rate of $4.50 per brick for the first 10, $3.50 per brick for the next 10, and $2.50 for any additi
iogann1982 [59]
If the first 10 bricks come out at $ 4.5, I would be spending $ 45. The other 10 bricks come out at $ 3.5 so he would be spending $ 35. Therefore, he has $ 20 available to buy bricks at $ 2.5, which would be buying 8 additional bricks. Thus, in total, with $ 100, 28 bricks were purchased.

8 0
2 years ago
<img src="https://tex.z-dn.net/?f=%28%5Csqrt%282%29-%5Csqrt%28-2%29%29%28%5Csqrt%2818%29%2B%5Csqrt%28-2%29%29" id="TexFormula1"
prohojiy [21]
Rewrite as (2^1/2 + 2^1/2)*(18^1/2-2^1/2) = 8
5 0
3 years ago
The binomial x-2 is a factor of the polynomial below. f(x)=x3+x2+nx+10 What is the value of n?
Nutka1998 [239]
<h3>Answer: n = -11</h3>

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

Explanation:

Since x-2 is a factor of f(x), this means f(2) = 0.

More generally, if x-k is a factor of p(x), then p(k) = 0. This is a special case of the remainder theorem.

So if we plugged x = 2 into f(x), we'd get

f(x) = x^3+x^2+nx+10

f(2) = 2^3+2^2+n(2)+10

f(2) = 8+4+2n+10

f(2) = 2n+22

Set this equal to 0 and solve for n

2n+22 = 0

2n = -22

n = -22/2

n = -11 is the answer

Therefore, x-2 is a factor of f(x) = x^3+x^2-11x+10

Plug x = 2 into that updated f(x) function to find....

f(x) = x^3+x^2-11x+10

f(2) = 2^3+2^2-11(2)+10

f(2) = 8+4-22+10

f(2) = 0

Which confirms our answer.

3 0
3 years ago
A square root of 54<br><img src="https://tex.z-dn.net/?f=%20%5C%5C%2054%20%5Csqrt%7B3%20%20%7D%20" id="TexFormula1" title=" \\ 5
11111nata11111 [884]
What’s the question?
8 0
2 years ago
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