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2 years ago

13

What is 2⋅4⋅−2 I need help with this exercise I don't understand

1 answer:

Mandarinka [93]2 years ago

5 0

////////////////////The answer is -16

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Solve. (x + 3)^1/2– 1 = x

Natali [406]

Answer:

x=1

Step-by-step explanation:

$(x + 3) ^{ \frac{1}{2} } - 1 = x \\ \sqrt{x + 3} - 1 = x \\ \sqrt{x + 3} = x + 1 \\ square \: both \: sides \\ x + 3 = {x}^{2} + 2x + 1 \\ {x}^{2} + 2x - x + 1 - 3 = 0 \\ {x}^{2} + x - 2 = 0 \\ x ^{2} + 2x - x - 2 = 0 \\ (x^{2} + 2x) - (x + 2) = 0 \\ x(x + 2) - 1( x + 2) = 0 \\ (x - 1)(x + 2) = 0 \\ x - 1 = 0 \\ x = 1 \\ \\ \\ x + 2 = 0 \\ x = - 2$

8 0

3 years ago

You might need: Calculator Problem Zane is a dangerous fellow who likes to go rock climbing in active volcanoes. One time while

Ksenya-84 [330]

Zane climb up in 33 seconds

44•33 = 1452 m.

so, Zane start from 1313 + 1452 = 2765 m below the edge.

to reach the edge with constant speed, Zane need 2765/44 = 62.84 seconds

we can round it to 63 seconds

7 0

3 years ago

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Enrique charges $5 for every 1/5 hour he spends walking dogs.

azamat

So it would be 12 minutes and $5 per 12 minutes.

4 0

4 years ago

An architect is making a model of a building she is designing. The kitchen will be 8 feet by 14 feet. The scale she is

tamaranim1 [39]

Answer:

12 inches by 21 inches

Step-by-step

Let's start with the 8 feet

for every 2 feet add three inches you get a total of 12 inches

same for the 14 feet, you get 21 inches

6 0

3 years ago

What is 4/4 reduced to lowest form

musickatia [10]

4/4=1

4÷4=1
4÷4=1

1/1= 1

hope this helps :)

4 0

3 years ago

Read 2 more answers