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3 years ago

10

How many fractions are equivalent to 4/5?

1 answer:

zaharov [31]3 years ago

7 0

There is an infinite amount of fractions equivalent to the one given. All you have to do to find a fraction equivalent is multiply the numerator and denominator by the same number, and when you get the resulting fraction it can be simplified to become the original again, therefore making it the same.

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Do anyone know the answer to this question?? 'Do Not Put Anything Down Just To Get Points'

cupoosta [38]

Answer:

I think its Kyle

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Select the expressions whose value is 4. <br> (-2)² <br> |- 4| <br> - 4÷2 <br> 2(-2)

Dmitry [639]

The first and the second one.

-2*-2=4

Absolute value of -4 is 4

7 0

3 years ago

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 419 gram setting. It is

Dahasolnce [82]

Answer:

The calculated t- value = 1.09 > 3.19 at 0.025 level of significance

Null hypothesis is rejected

There is sufficient evidence to support the claim that the bags are underfilled

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given the mean of the Population(μ) = 419 grams

The sample size 'n' =19

Given mean of the sample x⁻ = 412

Given variance of the sample S² = 784

S = √784 = 28

<u><em>Step(ii)</em></u>:-

<u><em>Null hypothesis: H₀</em></u>: There is no sufficient evidence to support the claim that the bags are underfilled.

<u><em>Alternative hypothesis: H₁:</em></u>

There is sufficient evidence to support the claim that the bags are underfilled.

Test statistic

$t = \frac{x^{-} -mean}{\frac{S}{\sqrt{n} } }$

$t = \frac{412 -419}{\frac{28}{\sqrt{19} } }$

t = -1.09

|t| = |-1.09|

<em>Degrees of freedom ν = n-1 = 19-1 =18</em>

<em>t₀.₀₂₅ = 3.19</em>

<u><em>Final answer:</em></u><em>-</em>

The calculated t- value = 1.09 > 3.19 at 0.025 level of significance

Null hypothesis is rejected

There is sufficient evidence to support the claim that the bags are underfilled

8 0

3 years ago

Can someone help me on this question?

notsponge [240]

Answer:

x = 19.6

Step-by-step explanation:

By applying cosine rule in ΔBCD,

cos(30)° = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

= $\frac{BC}{BD}$

$\frac{\sqrt{3}}{2}=\frac{BC}{16}$

BC = $8\sqrt{3}$

Now, by applying sine rule in ΔBAC,

sin(45)° = $\frac{\text{Opposite side}}{\text{Hypotenuse}}$

$\frac{1}{\sqrt{2}}=\frac{AB}{BC}$

$\frac{1}{\sqrt{2}}=\frac{x}{8\sqrt{3}}$

x = $8\sqrt{6}$

x = 19.59

x ≈ 19.6

3 0

3 years ago

PLS help me with this question

Vinvika [58]

Answer:

80, 20 suvs in 45 vehicles, 45 is 1/4 of 180, so just multiply 20 times 4 and the answer you get is 80

4 0

3 years ago