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3 years ago

Someone please help me

Mathematics

2 answers:

Stels [109]3 years ago

5 0

Answer:

1. X: 0, -3

2. Y: 1, -1

3. Z: 4, -4

4. M: -4, 1

5. N: -2, 2

6. P: 2, 4

7. Q: 2, 0

8. R: -3, -1

qwelly [4]3 years ago

4 0

Answer:

1. (0,-3)

2. (1,-1)

3. (4,-4)

4. (-4,1)

5. (-2,2)

6. (2,4)

7. (2,0)

8. (-3,-1)

9-17: first photo

18a: second photo

18b. A pentagon. When you connect the points, the shape has 5 sides

Step-by-step explanation:

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tester [92]

X is equal to 1.5. In order to get this you divide each side by 1.2

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4 years ago

A total of $6000 was invested, part of it at 3% interest and the remainder at 8%. If the total yearly interest amounted to $380,

Nastasia [14]

$ 2000 is invested at 3 % interest and $ 4000 is invested at 8 % interest

Solution:

Given that, total of $6000 was invested

Let "x" be the amount invested at 3 % interest

Then, (6000 - x) is the amount invested at 8 % interest

Given that,

The total yearly interest amounted to $380

Then, we can frame a equation as:

$x \times 3 \% + (6000 - x) \times 8 \% = 380$

Solve the above expression for "x"

$x \times \frac{3}{100} + (6000-x) \times \frac{8}{100} = 380\\\\0.03x + (6000-x) \times 0.08 = 380\\\\0.03x + 480 - 0.08x = 380\\\\-0.05x = -100\\\\\text{Divide both sides by -0.05 }\\\\x = 2000$

Thus, $ 2000 is invested at 3 % interest

(6000 - x) = 6000 - 2000 = 4000

$ 4000 is invested at 8 % interest

4 0

4 years ago

Solve : X^2 - 3x = -8 And Solve : -2x^2 - 16x - 44 = 0

Aleonysh [2.5K]

Answer:

X = 8/3 + X^2/3

X = -4 ± i $\sqrt{6}$

Step-by-step explanation:

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4 years ago

PLS HELP. The cost of printing a flyer to spread knowledge of an organization that you run is a flat rate of $9 plus $0.05 per c

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4 years ago

Read 2 more answers

Using the right triangle below find the cosine of angle A.

svetlana [45]

For the given triangle, the cosine of angle A equals $\frac{1}{2}$ .

Step-by-step explanation:

Step 1; In the given triangle, the opposite side has a length of 9 units, the adjacent side has a length of 3√3 units while the hypotenuse of the triangle measures 6√3 units. To calculate the cosine of angle A we divide the adjacent side by the hypotenuse side.

cos A = $\frac{adjacent side}{hypotenuse}$ .

Step 2; Length of the adjacent side = 3√3 units.

Length of the hypotenuse side = 6√3 units.

cos A = 3√3 / 6√3

cos A = $\frac{1}{2}$ .

To check we also have A = 60° and cos 60° = $\frac{1}{2}$ .

4 0

4 years ago