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4 years ago

8 centenas x 10 Help meeeee

Mathematics

1 answer:

djverab [1.8K]4 years ago

3 0

Answer:

80 centimeters

Step-by-step explanation:

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The executives of CareFree Insurance, Inc. feel that "a majority of our employees perceive a participatory management style at C

Mandarinka [93]

Answer:

Step-by-step explanation:

$H_0: p = 0.5\\H_a : p >0.5$

(One tailed test at 5% significance level)

Sample size =200 and sample proportion = $\frac{80}{200} =0.40$

Std error of p = $\sqrt{\frac{pq}{n} } \\=\sqrt{\frac{0.4(0.6)}{200} } \\=0.0346$

Test statistic = p diff/std error = -2.89

p value = 0.001926

So we reject H0 and accept alternate hypothesis.

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4 years ago

Draw a Picture graph that

Ulleksa [173]

Got your answer.

I drew it out on a digital drawing software I have.

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4 years ago

Let f(x)=x2+14x+36 .

azamat

Answer:

see explanation

Step-by-step explanation:

The vertex form of f(x) is

f(x) = (x - h)² + k

where (h, k) are the coordinates of the vertex

To obtain this form use the method of completing the square

add/subtract ( half the coefficient of the x- term )² to x² + 14x

f(x) = x² + 2(7)x + 49 - 49 + 36

= (x + 7)² - 13

The minimum value of f(x) is the y- coordinate of the vertex

vertex = (- 7, - 13), that is minimum value = - 13

6 0

4 years ago

Use the fact that 2 1/2 divide 1/8 =20 to find 2 1/2 divide 5/8

Tasya [4]

Answer:

Step-by-step explanation:

Given that $2\frac 1 2 \div \frac 1 8 =20$

$\Rightarrow \frac 5 2 \div \frac 1 8 =20$

$\Rightarrow \frac 5 2 \times 8 1 =20 \cdots(i)$

Now, $2\frac 1 2 \div \frac 5 8$ $= \frac 5 2 \div \frac 5 8$ $=\frac 5 2 \times \frac 8 5$

This can be written as

$\frac 5 2 \times \frac 8 5=\frac 5 2 \times \left( \frac 8 1 \times \frac 1 5\right)$ [as $\frac 8 5=\frac 8 1 \times \frac 1 5$ ]

$=\left(\frac 5 2 \times \frac 8 1 \right)\times \frac 1 5$

$=20 \times \frac 1 5$ [ by using equation (i)]

Hence, $2\frac 1 2 \div \frac 5 8=4$

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3 years ago

Simplify the expression 4×3+4×x

Alborosie

Answer:

12+4x

Step-by-step explanation:

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3 years ago