All categories

3 years ago

Which two of these fractiobns are eqivelent to 1/4? A.3/15 B.2/8 C.5/20 D.11/40

Mathematics

2 answers:

Pavel [41]3 years ago

6 0

Answer:

2/8

Step-by-step explanation:

they can both be divides by two making 1/4 or multiply 1/4 by 2 and youll get 2/8

Arisa [49]3 years ago

3 0

It’s B and C because 2/8 simplified is 1/4 and 5/20 simplified to the lowest from is 1/4 hope this helped :)

You might be interested in

Rewrite the expression in the form... (PLZ HELP QUICK I'LL GIVE BRAINLIEST)

ivanzaharov [21]

Answer: $3*z^\frac{2}{9}$

Step-by-step explanation:

The exponent 1/3 is the same thing as cube rooting the expression.

$\sqrt[3]{27\sqrt[3]{z^2} }$

3* $z^{2/9}$

Hope it helps <3

4 0

3 years ago

One third divided by 4

MA_775_DIABLO [31]

Answer:

1/12

I used keep change flip.

7 0

3 years ago

Read 2 more answers

A coffee packaging plant claims that the mean weight of coffee in its containers is at least 32 ounces. A random sample of 15 co

Luda [366]

Answer:

We conclude that the mean weight of coffee in its containers is at least 32 ounces which means that the data support the claim.

Step-by-step explanation:

We are given that a coffee packaging plant claims that the mean weight of coffee in its containers is at least 32 ounces.

A random sample of 15 containers were weighed and the mean weight was 31.8 ounces with a sample standard deviation of 0.48 ounces.

Let $\mu$ = mean weight of coffee in its containers.

SO, Null Hypothesis, $H_0$ : $\mu \geq$ 32 ounces {means that the mean weight of coffee in its containers is at least 32 ounces}

Alternate Hypothesis, $H_A$ : $\mu$ < 32 ounces {means that the mean weight of coffee in its containers is less than 32 ounces}

The test statistics that would be used here One-sample t-test statistics as we don't know about population standard deviation;

T.S. = $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample mean weight = 31.8 ounces

s = sample standard deviation = 0.48 ounces

n = sample of containers = 15

So, the test statistics = $\frac{31.8 -32}{\frac{0.48}{\sqrt{15} } }$ ~ $t_1_4$

= -1.614

The value of t test statistics is -1.614.

Now, at 0.01 significance level the t table gives critical value of -2.624 at 14 degree of freedom for left-tailed test.

Since our test statistic is more than the critical value of t as -1.614 > -2.624, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which we fail to reject our null hypothesis.

Therefore, we conclude that the mean weight of coffee in its containers is at least 32 ounces which means that the data support the claim.

8 0

3 years ago

Outside a home, there is aa 44-key keypad numbered 11 through 44. The correct sixsix-digit code will open the garage door. Th

olya-2409 [2.1K]

Answer:

a) 4,096

b) 0.000244

Step-by-step explanation:

By the Fundamental rule of counting, there are

4*4*4*4*4*4 = 4,096

ways of forming six-digit arrangements where each position has 4 possibilities (1 to 4)

The probability of entering the correct code on the first try, assuming that the owner does not remember the code is

1/4096 = 0.000244

5 0

3 years ago

Which rule describes the function in the graph below?

m_a_m_a [10]

The function that models the graph is given as: $f(x)=\left \{ {{-\frac{1}{3}x+\frac{4}{3} \ \ -8 < x < 2} \atop {-x^2+6\ \ -2 < x < 0}} \atop {6\ \ 0 < x < 4}, \ \ x+2\ \ 4 < x < 7 \right.$

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

The equation shown in the graph represents a piecewise function. Hence:

From the line through the point (-8, 4) and (-2, 2), the equation is f(x) = -(1/3)x + 4/3

From the curve through the point (-2, 2) and (0, 6), the equation is f(x) = -x² + 6

From the line through the point (0, 6) and (4, 6), the equation is f(x) = -6

From the line through the point (4, 6) and (7, 9), the equation is f(x) = x + 2

The function that models the graph is given as: $f(x)=\left \{ {{-\frac{1}{3}x+\frac{4}{3} \ \ -8 < x < 2} \atop {-x^2+6\ \ -2 < x < 0}} \atop {6\ \ 0 < x < 4}, \ \ x+2\ \ 4 < x < 7 \right.$

Find out more on equation at: brainly.com/question/2972832

#SPJ1

3 0

2 years ago