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3 years ago

Simplify: (10 – 149 + 1)^2

Mathematics

1 answer:

Elis [28]3 years ago

4 0

Answer: 19044

Step-by-step explanation:

1st. Calculate the expression in the brackets:

10-149+1=-138

2nd. Calculate (-138)^2=19044

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Two examples of hundreds place

kaheart [24]

0.987
8 is in the hundredths

0.45
5 is in the hundredths

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3 years ago

Is 1.75 a reasonable estimate of the value of the square root of 8

ladessa [460]

Answer:

Test it. Is 1.752 close to 8?

1.752 = 3.0625

3.0625 is not close to 8.

Step-by-step explanation:

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3 years ago

What is 6.23 million written in scientific notation?

taurus [48]

Answer:

6.23*10^6

Step-by-step explanation:

We first write the answer in full notation 6,230,000.

Then we count how many decimal places it takes before we have one leading digit. Since it is six, we move the decimal place and write 6.23*10^6

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2 years ago

Which equation represents the axis of symmetry of the function y= -2x^2 + 4x -6?

daser333 [38]

Answer:

The axis of symmetry is on x = 1

Step-by-step explanation:

When you graph the function, the vertex is at (1,-4). This means that the axis of symmetry is at x = 1

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3 years ago

8090 [49]

Answer:

James bought 11 good tickets and 5 bad tickets.

Step-by-step explanation:

Given that:

Cost of each good ticket = $8

Cost of each bad ticket = $5

Total amount spent = $113

Total tickets bought = 16

Let,

x be the number of good tickets bought

y be the number of bad tickets bought

x+y=16 Eqn 1

8x+5y=113 Eqn 2

Multiplying Eqn 1 by 5

5(x+y=16)

5x+5y=80 Eqn 3

Subtracting Eqn 3 from Eqn 2

(8x+5y)-(5x+5y)=113-80

8x+5y-5x-5y=33

3x=33

Dividing both sides by 3

$\frac{3x}{3}=\frac{33}{3}\\x=11$

Putting x=11 in Eqn 1

11+y=16

y=16-11

y=5

Hence,

James bought 11 good tickets and 5 bad tickets.

3 0

3 years ago