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3 years ago

I NEED HELP!!!!!!!!!!!

Mathematics

1 answer:

zhuklara [117]3 years ago

3 0

Answer:

D. 7/4, sqrt of 6, and pi

Step-by-step explanation:

7/4 equals to 1.75

Sqrt of 6 is approximately 2.45 rounded to the nearest hundredth

pi is 3.14 in the mathematical format

Therefore, the least to greatest would be 1.75, 2.45, and 3.14

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F( x) = 8x – 9 when x=3

Elan Coil [88]

Answer:

f = 5, x = 3.

Step-by-step explanation:

8x = 24

24 - 9 = 15.

3(5) = 15.

hope this helps.

3 0

2 years ago

Read 2 more answers

in a given year, the rate of flu infection for the general public was 8.3%. And sample of 200 people who receive the flu vaccine

makkiz [27]

Answer:

$\fbox{\begin{minipage}{10em}Option A is correct\end{minipage}}$

Step-by-step explanation:

Step 1: Define significance level

In this hypothesis testing problem, significance levels α is selected: $0.05$ , the associated z-value from Laplace table:

Φ( $z$ ) = α - $0.5 = 0.05 - 0.5 = -0.45$

=> $z$ = $-1.645$

Step 2: Define null hypothesis ( $H_{0}$ ) and alternative hypothesis ( $H_{1}$ )

$H_{0}$ : rate of flu infection $p$ = 8.3% or 8.3/100 = 0.083

$H_{1}$ : rate of flu infection $p$ < 8.3% or 8.3/100 = 0.083

Step 3: Apply the formula to check test statistic:

$K = \frac{f - p}{\sqrt{p(1 - p)} } * \sqrt{n}$

with $f$ is actual sampling percent, $p$ is rate of flu infection of $H_{0}$ , $n$ is number of samples.

The null hypothesis will be rejected if $K < z$

Step 4: Calculate the value of K and compare with $z$

$K = \frac{(\frac{3.5}{100}) - 0.083}{\sqrt{0.083(1 - 0.083)} } * \sqrt{200} = -2.46$

We have $-2.46 < -1.645$

=>This is good evidence to reject null hypothesis.

=> The actual rate is lower. (As $H_{1}$ states)

Hope this helps!

5 0

3 years ago

Martia orders 12yd of material to make banners. If she needs 1 foot of fabric for each banner, how many banners can she make?

SOVA2 [1]

You can make 36 banners. there are 3 feet in 1 yard so if you multiply 12 and 3 you get 36

4 0

4 years ago

#15 I don’t know how to do the proof

Mila [183]

What's the question.....

3 0

3 years ago

LING'S HALLWAY IS 10 FEET LONG AND 4 FEET WIDE. HE PAID $200 TO TILE HIS HALLWAY FLOOR. HOW MUCH DID LING PAY PER SQUARE FOOT FO

ivanzaharov [21]

Answer:

Step-by-step explanation:

10x4/200=5

5 0

4 years ago