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2 years ago

(3t + 7)−2(6.3t + 4) * 15.6t − 1 15.6t + 15 −9.6t + 15 −9.6t - 1

Mathematics

1 answer:

vodka [1.7K]2 years ago

8 0

Answer:the anser is -9.6t-1

Step-by-step explanation:

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Please solve with explanation 8 points

11111nata11111 [884]

Answer:

See below.

Step-by-step explanation:

Given :-

x² + bx + c = 0 if x₁ + x₂ = -b and x₁x₂ = c

Solving :-

a) x₁ = 1/2 and x₂ = -3/4

=> x² + -(1/2 + -3/4)x + 1/2(-3/4)

=> x² + -(-1/4)x + (-3/8)

=> x² + 1/4x - 3/8

=> 8x² + 2x - 3 = 0

b) x₁ = 1 + √5 and x₂ = 1 - √5

=> x² + -(1 + √5 + 1 - √5)x + (1 + √5)(1 - √5)

=> x² - 2x + 1 - 5

=> x² - 2x - 4 = 0

3 0

2 years ago

2. Ronnie buys 18 identical t-shirts costing £36. How much would 1 t-shirt cost? <br>

fgiga [73]

36/18=2
Each shirt is £2

4 0

3 years ago

Read 2 more answers

What percent of 208 is 197.6

ikadub [295]

Your percent is going to be <span>-203.008</span>

3 0

3 years ago

ITS EASY PLS HELP!!!!!

faust18 [17]

Answer:

3/18

Step-by-step explanation:

5 0

3 years ago

Please help me with this

Sati [7]

Answer:

$x = \sqrt{11.4^2+2.6^2}\\\\$

Rounded to the nearest hundredths: 11.69.

Step-by-step explanation:

I would use the Pythagorean theorem for this problem.

The difference between the highest point and the lowest point of AD is 9.8-7.2 = 2.6, so that would be the height of the triangle. The length/base of the triangle would be 11.4.

Now, just solve using Pythagorean's theorem:

$x = \sqrt{11.4^2+2.6^2}\\\\$

Rounded to the nearest hundredths: 11.69.

I hope this helped you.

5 0

3 years ago