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2 years ago

What percent is equivalent to 2/5.0.4%2.5%25%40%

Mathematics

2 answers:

Rzqust [24]2 years ago

7 0

Looooool 40% ezzzzzzzzz

devlian [24]2 years ago

3 0

Answer:

D. 40%

Explanation

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sergij07 [2.7K]

9514 1404 393

Answer:

47 -6√10

Step-by-step explanation:

As you know, the area of a square is the square of the side length. It can be helpful here to make use of the form for the square of a binomial.

(a -b)² = a² - 2ab + b²

(√2 -3√5)² = (√2)² - 2(√2)(3√5) + (3√5)²

= 2 - 6√10 + 3²(5)

= 47 -6√10

<em>Check</em>

√2-3√5 ≈ -5.29399 . . . . . . . . note that a negative value for side length makes no sense, so this isn't about geometry, it's about binomials and radicals

(√2-3√5)² ≈ 28.02633

47 -6√10 ≈ 28.02633

5 0

2 years ago

oleg ran 8.8 miles in 1 hour 20 minutes. assuming he continues at a constant rate, how long will it take him to run any number o

Usimov [2.4K]

V = d/t = 8.8 miles/[80/60] hours = 6.6 miles/hour

t = d/v = d/6.6

Answer: d/6.6, where d is the number of miles to run.

8 0

2 years ago

Read 2 more answers

What is the length of x? What is the length of EF? Only enter numbers in the answer boxes below:

dimaraw [331]

Focus on triangles DFC and DFE:

They are both right triangles because DF is perpendicular to EC
DC=DE
DF is a common side

So, the two triangles are congruent. It follows that CF=FE, and in particular

$8x=3x+15 \iff 5x=15 \iff x=3$

And since x=3, the length of EF is

$EF=3x+15=3\cdot 3+15=24$

7 0

3 years ago

What is 80% as a fraction in reduced form?

Elza [17]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

Z=a/b+c/d solve for A

PilotLPTM [1.2K]

Answer: $a=\frac{b(zd-c)}{d}$

Step-by-step explanation:

Having the following equation given in the exercise:

$z=\frac{a}{b}+\frac{c}{d}$

You can solve for "a" following this procedure:

1. You can apply the Subtraction property of equality and subtract $\frac{c}{d}$ from both sides of the equation:

$z-(\frac{c}{d})=\frac{a}{b}+\frac{c}{d}-(\frac{c}{d})\\\\z-\frac{c}{d}=\frac{a}{b}$

2. Now you must subtract the terms on the left side of the equation. Notice that the Least Common Denominator is "d". Then:

$\frac{zd-c}{d}=\frac{a}{b}$

3. Finally, you can apply the Multiplication property of equality and multiply both sides of the equation by "b". So, you get:

$(b)(\frac{zd-c}{d})=(\frac{a}{b})(b)\\\\a=\frac{b(zd-c)}{d}$

6 0

2 years ago

What percent is equivalent to 2/5.0.4%2.5%25%40% ​

What percent is equivalent to 2/5.0.4%2.5%25%40%