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Nataly [62]
3 years ago
11

Solve the quadratic equation by completing the square x^2+4x=15

Mathematics
2 answers:
bija089 [108]3 years ago
6 0

Answer:

Stop using my stuff fo points.

Step-by-step explanation:

Anni [7]3 years ago
5 0

Step-by-step explanation:

x^2+4x=15

x(x+4)=15

x=15 and x=-4

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If f(x)=3x−2 and g(x)=x2−5, what is g(f(2))?
Vikki [24]

Answer:

g(f(2)) = 11

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) = 3x - 2

g(x) = x² - 5

<u>Step 2: Find g(f(2))</u>

f(2)

  1. Substitute in <em>x</em>:                    f(2) = 3(2) - 2
  2. Multiply:                               f(2) = 6 - 2
  3. Subtract:                              f(2) = 4

g(f(2))

  1. Substitute in <em>x</em>:                    g(4) = 4² - 5
  2. Exponents:                          g(4) = 16 - 5
  3. Subtract:                              g(4) = 11
8 0
3 years ago
Which shape has two sets of parallel sides only?
soldier1979 [14.2K]

Answer:

all of the above to be honest

because they all have 2 pairs of parallel sides

5 0
3 years ago
Please help me :(((((
irga5000 [103]

Answer:

,hbdgyhy6jyiwci7oygiuhopuoyiudysrtaehsyrdutfihipj

Step-by-step explanation:

yugd oufygp8iuhyefyif hovujm

5 0
3 years ago
An elevator descends into mine shaft at the rate of 6m/min. If the descend starts from 10m above the ground level , how long wil
AnnyKZ [126]

Answer: Hi!

So first, I'm going to convert "350 below ground level" to -350, as this is what "below ground level" represents.

Now, we should find the total distance traveled. Take the absolute value of -350 (350) and add it to 10, the metres above ground level. This is 360.

We already know the rate of travel; 6m/min. All we have to do now is divide the total distance (360) by the rate of travel (6)!

360 ÷ 6 = 60

So, it took 60 minutes, or one hour, for the elevator to travel down the shaft!

Hope this helps!

6 0
3 years ago
Printer: $149, 18% off
antoniya [11.8K]
149-18% 149-26.82=122.18
149-122.18=$26.82
18% off of $149=$26.82
5 0
4 years ago
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