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2 years ago

What is the value of 46 - 2 × 4 + 7

Mathematics

1 answer:

tresset_1 [31]2 years ago

8 0

Answer: The answer to the expression is 45.

Step-by-step explanation: You can simplify this expression using the order of operations:

46 - 2 x 4 + 7 first you have to do multiplication

46 - 8 + 7 then go from left to right

38 + 7 = 45 After doing so, you will arrive to your answer

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What number is equivalent to 47/9

Vikki [24]

Answer:

$\frac{47}{9}$ = 5 $\frac{2}{9}$

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2 years ago

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The length of each side of a square is 6 feet more than the length of a side of a regular Octagon. The perimeter of the square i

goldfiish [28.3K]

9514 1404 393

Answer:

square: 12 ft sides
octagon: 6 ft sides

Step-by-step explanation:

This problem can be worked in your head.

If the perimeters of the square and regular octagon are the same, the side length of the 4-sided square must be the same as the length of 2 sides of the 8-sided octagon. Since the side of the square is 6 ft more than the side of the octagon, each side of the octagon must be 6 ft, and each side of the square must be 12 ft.

We can let s represent the side length of the octagon. Then we have ...

8s = perimeter of octagon

4(s +6) = perimeter of square

These are equal, so ...

4(s +6) = 8s

s +6 = 2s . . . . . . divide by 4

6 = s . . . . . . . . . . subtract s

The octagon has 6-ft sides; the square has 12-ft sides.

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2 years ago

$200 * 1/6 PLEASE HELP TIMED!!!!

statuscvo [17]

Answer:

33.33

Step-by-step explanation:

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2 years ago

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Simplify by dividing negative three over eight divided by five over nine.

goblinko [34]

Answer:

$\frac{-27}{40}$

Step-by-step explanation:

First we need to write in correct form :

$\frac{-3}{8}:\frac{5}{9}$

We know how to divide fractions. If we can divide numerator by numerator, denominator by denominator, we just do it. In this example we can not do that.

So, we rewrite first fraction and multiply by reciprocal second ( numerator and denominator change place)

$\frac{-3}{8} *\frac{9}{5}$

Now, multiply numerator by numerator, denominator by denominator :

$\frac{-27}{40}$

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2 years ago

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HELPP!!!!!!!!!!!!!!!!

Anvisha [2.4K]

Answer:

Step-by-step explanation:

We'll take this step by step. The equation is

$8-3\sqrt[5]{x^3}=-7$

Looks like a hard mess to solve but it's actually quite simple, just do one thing at a time. First thing is to subtract 8 from both sides:

$-3\sqrt[5]{x^3}=-15$

The goal is to isolate the term with the x in it, so that means that the -3 has to go. Divide it away on both sides:

$\sqrt[5]{x^3}=5$

Let's rewrite that radical into exponential form:

$x^{\frac{3}{5}}=5$

If we are going to solve for x, we need to multiply both sides by the reciprocal of the power:

$(x^{\frac{3}{5}})^{\frac{5}{3}}=5^{\frac{5}{3}}$

On the left, multiplying the rational exponent by its reciprocal gets rid of the power completely. On the right, let's rewrite that back in radical form to solve it easier:

$x=\sqrt[3]{5^5}$

Let's group that radicad into groups of 3's now to make the simplifying easier:

$x=\sqrt[3]{5^3*5^2}$ because the cubed root of 5 cubed is just 5, so we can pull it out, leaving us with:

$x=5\sqrt[3]{5^2}$ which is the same as:

$x=5\sqrt[3]{25}$

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2 years ago