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3 years ago

13

There are 90 new houses being built in a neighborhood. Last month, 13 of them were sold. This month, 15 of the remaining houses

were sold. How many houses are left to be sold?

2 answers:

Tcecarenko [31]3 years ago

8 0

62 because 90 minus 15, minus 13, is equal to 62

Flauer [41]3 years ago

3 0

There are 62 houses left to be sold

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Which numbers are irrational? Select all that apply.

ValentinkaMS [17]

Answer:

A real number which can be expressed in the form of a/b where b≠0 is called rational number.

A real number which cannot be expressed in the form of a/b where b≠0 is called irrational number.

1. = 14 = 14/1 ..... rational number

2. = ..... irrational number

3. = 4 = 4/1 ........ rational number

4. = 3.142857...... ....... irrational number

5. = ..... irrational number

6. ............. rational number (a/b form)

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2 years ago

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Please answer this question

Afina-wow [57]

Answer:

The answer is

Step-by-step explanation:

Given: f(x) = 3 + 2x - x²

To compute f(3 + h) substitute x = 3 + h.

Similarly, to compute f(h) simply substitute x = h.

We are asked to compute $\frac{f(3 + h) - f(h)}{h}$

f(3 + h) = 3 + 2(3 + h) - {(3 + h)²}

= 3 + 6 + 2h - {9 + 6h + h²}

= 9 + 2h - 9 - 6h - h²

= - 4h - h²

Now, f(h) = 3 + 2h - h²

f(3 + h) - f(h) = -4h - h² - 3 - 2h + h²

= -6h - 3

$\therefore \frac{f(3 + h) - f(h)}{h} = \frac{-3(2h + 1)}{h}$ which is the required answer.

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3 years ago

Determine the intercepts of the line. y=6x+13y=6x+13

Lynna [10]

Answer:

there are infinitely many solutions

Step-by-step explanation:

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3 years ago

Solve the following problems. Remember that all reasoning must be explained, and all steps of math work must be shown!

iris [78.8K]

Answer to Question 1:

<OGE (also m˚) = 19˚

Step-by-step explanation:

We know that all the angles in a triangle add up to 180˚.

<u>Given:</u>

<EGO = 71˚

<OEG = 90˚ (the angle forms a right angle because line EG is perpendicular to point O)

<u>To Solve:</u>

⇒ Since we know two angles, we should know the third; and they all add up to 180˚. This can be written as:

71˚ + 90˚ + <OGE = 180˚

⇒ Solve for <OGE by simplifying:

161˚ + <OGE = 180˚

⇒ Subtract 161˚ from both sides to get:

161˚ − 161˚ + <OGE = 180˚ − 161˚

⇒ Isolate <OGE:

<OGE = 19˚

<u>Answer:</u> <OGE (also m˚) = 19˚

Answer:

<OAC (also x˚) = 50˚

<OCB (also y˚) = 90˚

Step-by-step explanation:

–<u>How to solve for <OCB (also y˚)</u>

Just by looking, you can already tell that <OCB equals 90˚ because it forms a right angle.

<u>Answer:</u> <OCB (also y˚) = 90˚

–<u>How to solve for <OAC (also x˚)</u>

<u>Given (and what we can already know):</u>

<AOC = 40˚

<OCA = 90˚

⇒ Reason: Line AB is a straight line and a straight line equals 180˚. We already know on side of the line because <OCB is 90˚, and so the other side, <OCA, should also be 90˚, since the both sides that make up the straight line equal 180˚ (90˚ + 90˚ = 180˚). You can also tell that <OCA forms a right angle in the triangle because line AB is perpendicular to point O, and right angles are 90˚.

<u>To Solve:</u>

⇒ Since we know two angles in the triangle, we should know the third; and they all add up to 180˚. This can be written as:

40˚ + 90˚ + <OAC = 180˚

⇒ Solve for <OAC by simplifying:

130˚ + <OAC = 180˚

⇒ Subtract 130˚ from both sides to get:

130˚ − 130˚ + <OAC = 180˚ − 130˚

⇒ Isolate <OAC:

<OAC = 50˚

<u>Answer:</u> <OAC (also x˚) = 50˚

I hope you understand and that this helps with your question! :)

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2 years ago

Order the set of numbers from least to greatest.<br><br><br> {2.5, 4, 23, 1, 5, 3, 0.66}

joja [24]

0.66, 1, 2.5, 3, 4, 5, 23

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3 years ago

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