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3 years ago

5

Please help this is urgent

2 answers:

Bad White [126]3 years ago

6 0

Hey there!

Let's evaluate our keywords and translate these words into math so we can create an equation.

Our key word here is <em>of</em>. In mathematics, when we say of, we mean multiplication. For example, when we say, "1/2 of 10", it translates to 1/2 times 10, which equals 10/2 or 5.

Therefore, when we say 1/4 of the total washers (assuming w is the total amount of washers), we mean that 1/4 <em />the total amount of washers represents how many have to be fixed. That would give us:

1/4(w) = 1/4w

As the problem says, the 6 washers that need to be replaced represent the total amount of washers that there are. That means that the 1/4w must equal 6 because that 6 is the amount that is broken.

Therefore, our answer is B.

Hope this helps!

Sergio [31]3 years ago

4 0

Answer is
B 1/4 W = 6

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What are the next four multiples of the fraction 3/5?

tiny-mole [99]

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5 0

3 years ago

Read 2 more answers

(20 points) A statistics practitioner calculated the mean and the standard deviation from a sample of 400. They are x = 98 and s

Nimfa-mama [501]

Answer:

The P-value is 0.0234.

Step-by-step explanation:

We are given that a statistics practitioner calculated the mean and the standard deviation from a sample of 400. They are x = 98 and s = 20.

Let = population mean.

So, Null Hypothesis, : = 100 {means that the population mean is equal to 100}

Alternate Hypothesis, : > 100 {means that the population mean is more than 100}

The test statistics that will be used here is One-sample t-test statistics because we're yet to know about the population standard deviation;

T.S. = ~

where, = sample mean = 98

s = sample standard deviation = 20

n = sample size = 400

So, the test statistics = ~

= -2

The value of t-test statistics is -2.

Now, the P-value of the test statistics is given by;

P( < -2) = 0.0234 {using the t-table}

8 0

3 years ago

I need help ASAP, would really appreciate it, marking first as brainliest.

swat32

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3 0

3 years ago

Read 2 more answers

Differentiate y=x⁴(1-2x⁵)⁶(5-8x³)².

Liula [17]

Step-by-step explanation:

Let $y(x)=f(x)g(x)h(x)$ where

$f(x) = x^4$

$g(x)= (1 -2x^5)^6$

$h(x)= (5 - 8x^3)^2$

so that

$y(x) = x^4(1 -2x^5)^6(5 - 8x^3)^2$

Recall that the derivative of the product of functions is

$y'(x)=f'(x)g(x)h(x)+f(x)g'(x)h(x)+f(x)g(x)h'(x)$

so taking the derivatives of the individual functions, we get

$f'(x) = 4x^3$

$g'(x) = 6(1 - 2x^5)^5(-10x^4)$

$h'(x) = 2(5 - 8x^3)(-24x^2)$

So the derivative of y(x) is given by

$y'(x) = 4x^3(1 -2x^5)^6(5 - 8x^3)^2 + x^4 6(1 -2x^5)^5(-10x^4)(5 - 8x^3)^2 + x^4(1 -2x^5)^6 2(5 - 8x^3)(-24x^2)$

or

$y'(x) = 4x^3(1 -2x^5)^6(5 - 8x^3)^2$

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:- 60x^8(1 -2x^5)^5(5 - 8x^3)^2$

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:- 48x^6(1 -2x^5)^6 2(5 - 8x^3)$

3 0

2 years ago

8+a=21 plssssssssssssszzzz

attashe74 [19]

Answer:

13

Step-by-step explanation:

because a is the missing number. Well, 21 minus or - 8 is equal to 13.

8 0

3 years ago