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3 years ago

Which of the following represents the most accurate estimation of 719 - 348?

Mathematics

2 answers:

irina [24]3 years ago

4 0

It is 400 hope this helps

umka21 [38]3 years ago

4 0

I think the correct answer is 400.

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Solve for x: (8x + 15) = 24

Hatshy [7]

Answer:

Step-by-step explanation:

8x + 15 = 24

8x = 9

x = $\frac{9}{8}$

7 0

2 years ago

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Please help!! I’m stuck on this

beks73 [17]

Answer:

B. $x = -4\,\lor \,x = -1$

Step-by-step explanation:

Let $\sqrt{-4-5\cdot x} = x$ , we solve for $x$ by algebraic means.

1) $\sqrt{-4-5\cdot x} = x$ Given

2) $-4-5\cdot x = x^{2}$ Definition of power/Symmetry of equality

3) $x^{2}+5\cdot x + 4 = 0$ Compatibility with addition/Commutative and associative properties/Existence of additive inverse/Modulative property

4) $(x+4)\cdot (x+1) = 0$ $x^{2}+(a+b)\cdot x +a\cdot b = (x + a)\cdot (x+b)$

5) $x = -4\,\lor \,x = -1$ Result

Hence, the correct answer is B.

7 0

3 years ago

15 points!!! HELP AS SOON AS YOU CAN !!!

katrin [286]

Answer:

-31 1/3 (answer choice 1)

Step-by-step explanation:

Let's begin by eliminating the fractions. Mult. all four terms by the LCD (8), obtaining:

-f - 6 - 2f = 88. Then -3f = 94, and f = -31 1/3

5 0

3 years ago

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Solve the following compound inequality: x>= -1 or x<2

Katen [24]

Answer:

All the real numbers.

Step-by-step explanation:

We have that x≥-1 or x<2.

The 'or' means that it can be one value or another: [-1, +∞) U (-∞, 2) = ℝ. Then, the solution to the compound inequality is All the real numbers. In set notation: ℝ.

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3 years ago

What is the volume of the solid?

beks73 [17]

It is actually not 28 because the volume of a cylinder is: pi r^2 x h which in this case is pi x 36 x 4 which equals 452.39 rounded up

7 0

3 years ago