3 years ago

HELP ME PLS i need help on this i have to pass

1 answer:

8 0

X-5<-2 add 5 to both sides

x<3

It is the top one. Note the hollow dot means that the number is not included. In this case 3 is not included because x is less than 3.

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The length of one side of a triangular lot is 6 m less than 3 times the length of the second side. The third side is 8 m longer

Tanya [424]

second side = x

first side = 3x - 6

third side = (3x - 6) + 8

The perimeter = 80m and is equal x + (3x - 6) + [(3x - 6) + 8]

x + 3x - 6 + 3x - 6 + 8 = 80

7x - 4 = 80 |+4

7x = 84 |:7

x = 12 m

3x - 6 = 3(12) - 6 = 30 m

(3x - 6) + 8 = 3x + 2 = 3(12) + 2 = 38 m

Answer: 12m, 30m, 38m

8 0

3 years ago

J/6=24 I think you need to do cross product but I’m not really sure

elixir [45]

Answer = J= 144

Step by step:

24x6 = 144

4 0

3 years ago

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What is the area of the trapezoid shown ?

Irina18 [472]

Answer:

A = 1/2 * (a + c) * h

A = 1/2 * (6 + (2 + 6 + 2)) * 6 = 48

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3 years ago

How many zeros does the function f(x)=3x^12 -17x^8+11x^4-6x+23 have

jeyben [28]

Answer:

12.

Step-by-step explanation:

The number of zeros to an equation is the highest power of the polynomial.

A quadratic equation whose highest degree is 2, has two solutions.

The equation f(x) = $3x^{12} - 17x^{8} + 11x^{4} - 6x + 23$ will have 12 solutions (or zeroes) since the highest degree is 12.

5 0

3 years ago

The angle of elevation from the top of a building to the top of another is 45°.

MrRa [10]

Answer:

402m

Step-by-step explanation:

Set this up as a triangle and use trig to solve it:

tan(45) = y/402

y = 402*tan(45)

substitute: tan(45) = 1

y = 402 * 1

y = 402m

4 0

3 years ago