3 years ago

Got another question for you guys! What is 12.5 x 4.2?

Mathematics

1 answer:

yarga [219]3 years ago

3 0

Answer:

52.5

Step-by-step explanation:

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1. Evaluate 5+8x when x = 2 2. y+51=98 3. m6=9 4.1 5n+45? I need some help!

BaLLatris [955]

1 is 21
2 is 47
i'm not sure what 3 is but i think it's 1.5 or 3/2
4 is 5(n+9)

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3 years ago

HELP!!!!!!!!!! What is the product? −5⋅(−3)⋅(−8) a−120 b−16 c16 d120

Greeley [361]

The answer is

a−120

because -5*-3=15 because negative and a negative = a positive

Now 15*-8 =-120 that's because a negative and a positive

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3 years ago

Read 2 more answers

How many real solutions if any, does 2x^2-3x+8=0

fenix001 [56]

Answer:

The quadratic equation $2\, x^{2} - 3\, x + 8 = 0$ has no real solution.

Step-by-step explanation:

Rewrite the quadratic equation $2\, x^{2} - 3\, x + 8 = 0$ in the standard form $a\, x^{2} + b\, x + c = 0$ :

$2\, x^{2} + (-3)\, x + 8 = 0$ , for which:

$a = 2$ .
$b = (-3)$ .
$c = 8$ .

The quadratic discriminant of $a\, x^{2} + b\, x + c = 0$ is $(b^{2} - 4\, a\, c)$ . The quadratic discriminant of $2\, x^{2} + (-3)\, x + 8 = 0$ would be:

$\begin{aligned}& b^{2} - 4\, a\, c \\ =\; & (-3)^{2} - 4 \times 2 \times 8 \\ =\; & (-55)\end{aligned}$ .

Since the quadratic discriminant of this equation is negative, this quadratic equation has no real solution.

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2 years ago

Hey guys im failing math can you guys help me?

svetlana [45]

C is the answer. Hope that helps

8 0

3 years ago

Eight less than four times the sum of a number and 3 is 16

vovangra [49]

the number is 6.....

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3 years ago