All categories

3 years ago

I need the answer this is the last question

Mathematics

2 answers:

svp [43]3 years ago

7 0

Answer:8

Step-by-step explanation:

max2010maxim [7]3 years ago

4 0

Answer:

Hope this helps

Step-by-step explanation:

You might be interested in

Which statement is not true about the data shown?

Dmitrij [34]

Answer:

believe it is "the median is 82."

Step-by-step explanation:

55,66,82,89,90,92

there are 6 numbers so in order to find the median here you would have to add 82 and 89 together and then divide by 2.

82+89=171

171/2=85.5

hence "the median is 82." is the right answer

3 0

3 years ago

A cohort study was conducted to study the association of coffee drinking and anxiety in a population-based sample of adults. Amo

azamat

Answer: Relative risk of anxiety associated with coffee use is 5 times the anxiety associated with non coffee use.

Step-by-step explanation:

Since we have given that

Number of coffee drinkers = 10000

Number of whom developed anxiety = 500

Number of non coffee drinkers = 20000

Number of whom developed anxiety = 200

So, probability of getting anxiety from coffee drinkers = $\dfrac{500}{10000}=0.05$

Probability of getting anxiety from non coffee drinkers = $\dfrac{200}{20000}=0.01$

so, Relative risk of anxiety associated with coffee use is given by

$\dfrac{0.05}{0.01}=5$

Hence, Relative risk of anxiety associated with coffee use is 5 times the anxiety associated with non coffee use.

6 0

3 years ago

Renata ganó una rifa y se le entregaron 7832 pesos. Ella decidió repartirlos de la siguiente manera: a su mamá 3/8 del total, a

gogolik [260]

Answer:

A su mamá

= 2937 pesos

A su hermano

= 1566.4 pesos

El resto para ella

= 3328.6 pesos

Step-by-step explanation:

El número total de pesos que cada uno consiguió se calcula como:

Su madre

= 3/8 del total

= 3/8 × 7832

= 2937 pesos

Su hermano

= 1/5 del total

= 1/5 × 7832

= 1566.4 pesos

Sí misma

= El resto

= 7832 - (2937 + 1566,4)

= 7832 - 4503.4

= 3328.6 pesos

5 0

3 years ago

Find the length of arc AB

marissa [1.9K]

Step 1: Find the circumference of the circle

Formula for circumference: C = 2 * pi * r

C = 2 * pi * 27

C = 54pi

Step 2: Find the length of the desired arc

We are only looking for 20 degrees out of 360 degrees, therefore we can multiply our circumference by 20/360.

20/360 * 54pi = 3pi units

Hope this helps!

7 0

3 years ago

P(x) = x^4+ax^3-x^2+bx-12 has factors of (x-2) and (x+1). Solve the equation P(x)=0

Feliz [49]

Answer:

because P(x) has factors of (x-2) and (x+1) => x = 2 and x = -1 are the solutions of P(x)

so we have:

$\left \{ {{2^{4}+2^{3}a-2^{2}+2b-12 =0} \atop {1-a-1-b-12=0}} \right.\\=>\left \{ {{8a+2b=0} \atop {a+b=-12}} \right.\\\left \{ {{4a+b=0} \atop {a+b=-12}} \right.\\\left \{ {{a=4} \atop {b=-16}} \right.$

=> $P(x)=x^{4} + 4x^{3}-x^{2} -16x-12$

With P(x) = 0

=> $x^{4}+4x^{3}-x^{2} -16x-12 = 0$

=> ........

Step-by-step explanation:

5 0

3 years ago