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3 years ago

Please help me !!! I will give branlyist ONLY IF RIGHT Question 2 (5 points)

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

7 0

Answer:

true

Step-by-step explanation:

the triangle inequality statement says the sum of any two sides must be greater than the third side

value 4, 5, and 8 work

4 + 5 > 8 true

4 + 8 > 5 true

5 + 8 > 4 true

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Write an inequality. The sum of a number and three is no more than eight or is more than twelve.

viktelen [127]

Answer:

8 ≥ x+3 or x ≥ 12

Step-by-step explanation:

The sum of a number (additon) and 3 (x+3) is no more than (so less than or equal to eight) OR is more than 12 ( x is more than 12, x ≥ 12 )

8 0

3 years ago

Mark estimates that the distance from his house to his school is 15.5 mi. The actual distance is 14.5 mi.

lapo4ka [179]

So the error is 1 mile

I ask what % of 15.5 = 1

How you write this;

x/100 *15.5 = 1

15.5x = 100

x = 100/15.5

x = 6.451629 round up 6.45

% error is 6.45 %

7 0

3 years ago

Read 2 more answers

Solve 13+b>34. Graph the solution. I give lots of points

enyata [817]

Question:

13 + b > 34

Step 1: Keep variable on one side, and subtract 13 on both sides.

b > 21

Step 2: Now that you have the value of b, create a number line that includes the number "21"

Step 3: Since it is not "or equal too" we will use an open dot, since we do not contain that point. Put dot over 21.

Step 4: The sign is ( > ) meaning greater than. Therefore all points greater than 21 is true. See graph.

8 0

3 years ago

What is the discrimination of the quadratic equation 8x^2-2x-1=0

ELEN [110]

$D=b^2-4ac\\D=(-2)^2-4(8)(-1)\\D=4+32\\D=36$

For another information, when D > 0, there are 2 real roots.

When D = 0, there is only one real root.

And when D < 0, there are no real roots (also known as imaginary.)

8 0

4 years ago

What is the solution to the system of equations?

cluponka [151]

Answer:

(-4,-8)

Step-by-step explanation:

3 0

3 years ago