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3 years ago

Please someone help i dont know this :(

Mathematics

2 answers:

zhuklara [117]3 years ago

7 0

Answer:

none of the above

Step-by-step explanation:

Vertical angles are opposite angles made by intersecting lines

a and b are not vertical angles no

Complementary angles - two angles that add to 90 degrees

b is 90 degrees by itself no

Supplementary angles - two angles that add to 180 ( would make a straight line)

a and b do not form a straight line they are not vertical angles - no

Nezavi [6.7K]3 years ago

4 0

Answer:

Step-by-step explanation:

Complementary angles add up to 90 and Supplementary angles add up to 180

90 < a + b < 180

So, neither complementary nor Supplementary

Clearly they aren't vertical angles either

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<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B5%20%7D%20%20%5Ctimes%20%20%5Cfrac%7B3%7D%7B9%7D%20%2B%20%20%5Cfrac%7B2%7D

Reptile [31]

Answer:

$\frac{14}{15}$

Step-by-step explanation:

$\frac{4}{5}$ × $\frac{3}{9}$ + $\frac{2}{3}$ ( firstly, multiply the 2 fractions together )

= $\frac{12}{45}$ + $\frac{2}{3}$

= $\frac{4}{15}$ + $\frac{2}{3}$

= $\frac{4}{15}$ + $\frac{2(5)}{3(5)}$

= $\frac{4}{15}$ + $\frac{10}{15}$

= $\frac{14}{15}$

7 0

3 years ago

if jacob used 1/7 of a liter of water to fill 1/9 of a fish aquarium how many liters are needed to fill the aquarium

Paladinen [302]

1/9 of the aquarium was filled with 1/7 liter

1 whole fraction of the aquarium will be filled = 1/7 ÷ 1/9

= 1/7 * 9/1 = 9/7

9/7 liters or 1 2/7 liters will be needed.

6 0

4 years ago

Use the calculator to graph the functions y = -x + 5 + 2 and y=-(x - 1)2 + 3. Which statement is true?

Nitella [24]

The y is greater than the function

5 0

3 years ago

Which graph represents the solution for the following inequality <br><br>c < -2

ohaa [14]

Answer:

I am pretty confident that the answer is the last one

Step-by-step explanation:

I'm not really sure how to explain though lol.

Hope this helps!

5 0

3 years ago

Explain how you would graph the line containing a slope of –1/5 that goes through the point (1,–4).

Anettt [7]

Slope = -1/5
Coordinate = (1, -4)

We know, y - y1 = m(x - x1)
y + 4 = -1/5 (x - 1)
y + 4 = -1/5x + 1/5
y = -1/5x -19/5

When, x = 1, y = -1/5(1) - 19/5 = -20/5 = -4
x = 2, y = -1/5(2) - 19/5 = -21/5
x = 3, y = -1/5(3) - 19/5 = -22/5

Here, Your Coordinates would be: (0, -4), (1, -21/5), (2, -22/5)
Mark them & draw the lines. Graph is done!

Hope this helps!

5 0

3 years ago

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