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Jlenok [28]
3 years ago
7

Will give Brainliest! Please solve quickly!

Mathematics
2 answers:
Dafna1 [17]3 years ago
5 0

Answer:2

Step-by-step explanation:

8090 [49]3 years ago
3 0

Answer:

a is 3x-3+1=3x-2 B is -1-y+3+y=2 C is -x+x+2 = 2

Step-by-step explanation:

a has 3 positive x's and 3 negative ones and 1 so the equation is 3x-3+1 and to  simplify you would do -3+1 which is 2 and 3x is simplified enough so a is 3x-3+1=3x-2

B one negative 1 and 1 negative y 3 positive ones any one positive y. so the equation is -1-y+3+y and the answer is 2 everything elese cancels out.

C  one negative x one positive x and 2 positive ones so the equation is -x+x+2 and when you simplify you get just 2 again.

If you need any help or further explaination leave a comment or if its wrong tell me and ill try my best to fix it.

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A monster zip line produces average speed of 120 km/h a small alarm produces be represented by the function d=50h where d is the
Vladimir [108]

Answer: 12. 5 km

Step-by-step explanation:

We have the following equation:

d=50 h

Where d is the distance in kilometers and h=0.25 h is the time in hours.

Solving the equation with the given data and conditions:

d=50 km/h(0.25 h)

d=12.5 km This is the traveled distance by th monster zip

7 0
3 years ago
Solve the following simultaneous equation by using an algebraic method (either substitution or elimination)
Maru [420]

Answer:

( \frac{29}{14}, - \frac{19}{7})

Step-by-step explanation:

given the 2 equations

2x + 3y = - 4 → (1)

4x - y = 11 → (2)

Rearrange (2) expressing y in terms of x, that is

y = 4x - 11 → (3)

Substitute y = 4x - 11 into (1)

2x + 3(4x - 11) = - 4

2x + 12x - 33 = - 4

14x - 33 = - 4 ( add 33 to both sides )

14x = 29 ( divide both sides by 14 )

x = \frac{29}{14}

Substitute this value into (3) for corresponding value of y

y = (4 × \frac{29}{14}) - 11 = \frac{116}{14} - \frac{154}{14} = - \frac{38}{14} = - \frac{19}{7}

solution is ( \frac{29}{14}, - \frac{19}{7})



7 0
4 years ago
[(8*9)] - (6*7)] -15
maks197457 [2]

Answer:

15

Step-by-step explanation:

Simplify the following:

8×9 - 6×7 - 15

8×9 = 72:

72 - 6×7 - 15

-6×7 = -42:

72 + -42 - 15

72 - 42 - 15 = 72 - (42 + 15):

72 - (42 + 15)

| 4 | 2

+ | 1 | 5

| 5 | 7:

72 - 57

| 6 | 12

| 7 | 2

- | 5 | 7

| 1 | 5:

Answer:  15

3 0
3 years ago
Read 2 more answers
Can someone pls give answer to number 4
katen-ka-za [31]

Step-by-step explanation:

Supplement= 180°- 13°

167° Answer

3 0
3 years ago
Read 2 more answers
Please help with number 1
bezimeni [28]

Answer:

19.0681

Step-by-step explanation:

Given in the question that,

angle from ted to the dog = 60° with the ground

height of ted from the ground =  16ft

To find,

distance between dog and the door of ted's building

Considering the scenario make a right angle triangle:

<h3>By using pythagorus theorem:</h3>

Tan 40 = opposite / adjacent

Tan 40 = height / distance between dog and the door

Tan 40 = 16ft / x

x = 16 / tan40

x = 19.068057

x ≈ 19.0681 (nearest to thousand)

So, the dog need to walk 19.0681ft to reach the open door directly below Ted.

7 0
3 years ago
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