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bonufazy [111]
3 years ago
14

Pls help me i dont get it :(

Mathematics
2 answers:
Murljashka [212]3 years ago
5 0

Answer:

<h2>7.  x = 64</h2><h2>8.  x = 12</h2><h2>9.  x = 12</h2>

Step-by-step explanation:

7. alternate angle or opposite angle are equal

   128 = 2x

    x = 128 / 2

    x = 64

8.  interior angles = 180

    180 = 72 + (7x + 24)

    180 - 72 - 24 = 7x

     x = 84 / 7

     x = 12

9.   same side angle = 180

     180 = 65 + (11x - 17)

     180 - 65 + 17 = 11x

     x = 132 / 11

     x = 12

ValentinkaMS [17]3 years ago
3 0

Answer:

7.alternate interior

x=64

8. same side interior

x=12

same side exterior

x=12

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It will be 6 cause it is going by 1+ 1,2,3,4,5,6 (if it was 1,3,6,9, it will be 12 cause it is going by 3+) so answer is 6
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A pole that is 2.7 m tall casts a shadow that is 1.76 m long. At the same time, a nearby building casts a shadow that is 44.25 m
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81

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9x9

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Simplify the following expression. 12a + 2a
mamaluj [8]

Answer:

14a

Step-by-step explanation:

Combining like-terms gives us 12a+2a=14a

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2 years ago
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A city has a population of 230,000 people. Suppose that each year the population grows by 9%. What will the population be after
zloy xaker [14]

<u>Answer:</u>

<h2><u>385,733</u></h2>

Step-by-step explanation:

If it grows by 9% each year, you can simply do the current population times 109%. Because its an additional 9%.

230,000*109% = 250,700

After the first year, there is a population of 250,700 people.

250,700*109% = 273,263

After the second year, there is a population of 273,263 people.

273,263*109% = 297,856.67

After the third year, there is a population of 297,856.67 people.

297,856.67*109% = 324,663.77

After the fourth year, there is a population of 324,663.77 people.

324,663.77*109% = 353,883.509

After the fifth year, there is a population of 353,883.509 people.

353,883.509*109% = 385,733.025

After the sixth year, there is a population of 385,733.025 people

Round it up to 385,733 people.

7 0
2 years ago
The sum of two numbers is 33. Their difference is 23. Find the numbers.
Ipatiy [6.2K]

Answer: The numbers are 28 and 5

Step-by-step explanation: The question gives a set of clues. In the first instance, the addition of two numbers equals 33. Let us assume the two numbers are A and B. What that means is that

A + B = 33.

We shall call this equation 1.

The other clue is given as “their difference is 23.” This can be expressed as

A - B = 23.

We shall call this equation 2.

Now we have a pair of simultaneous equations as follows

A + B = 33 —————-(1)

A - B = 23 —————-(2)

We shall use the substitution method

From equation (1), if we make A the subject of the equation we shall move B to the other side and we’ll have

A = 33 - B

Substitute for the value of A in equation (2)

A - B = 23 now becomes

(33 - B) - B = 23

33 - B - B = 23

33 - 2B = 23

By collecting like terms we now have 33 - 23 = 2B

(Remember that when a positive value crosses to the other side of an equation, it becomes negative, and vice versa)

33 - 23 = 2B

10 = 2B

Divide both sides of the equation by 2

5 = B

If we calculate B as 5

We can substitute for this value into equation 1, which is

A + B = 33

A + 5 = 33

Subtract 5 from both sides of the equation

A + 5 - 5 = 33 - 5

A = 28.

Therefore the numbers are 28 and 5.

8 0
3 years ago
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