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3 years ago

Please help multiply mixed numbers

Mathematics

2 answers:

andreev551 [17]3 years ago

6 0

2 5/6 times 2 1/2 equals 85/12 but if you want to simplify it, it equals 7 1/2

soldi70 [24.7K]3 years ago

5 0

85/12 because you have to simplify 2 5/6 and it’s 17 /6 and the 2 and 1/2 which turns into 5/2 and you multiply 17/6 x 5/2 and it’s - 85/12

Read more about line segments at:

brainly.com/question/18983323

7 0

2 years ago

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

What is the prduct of 33 and 6925?

liubo4ka [24]

Answer:

228525-Look below for steps:)

Step-by-step explanation:

Step 1:

6925

* 33

______

Step 2:

5*3=15

carry the one

3*2+1=7

9*3=27

carry the 2

6*3+2=20

SO your first number is 20775 but we are NOT done yet!

add a zero below 5

5*3=15

carry the one

3*2+1=7

9*3=27 carry the 2

then 6*3+2=20

then add 207750+20775

which equals....

228525

so 228525 is your answer!!!

I really do hope this made sense!

Have a great day!

- Hailey: D

(NOTHING IS COPIED AND PASTED!!!!!)

3 0

3 years ago

Please help 15 points will give brainliest

torisob [31]

Answer:

Step-by-step explanation:

m∠1 = 3 times of m∠2

m∠2 = (1/3) times of ∠1

$= \dfrac{1}{3}*72\\\\= 24$

m∠2 = 24°

6 0

3 years ago

Translate the Verbal phrase into a Math Expression: Four more than twice a number

alukav5142 [94]

Answer:

2x+4 or 4+2x

Step-by-step explanation:

3 0

3 years ago