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3 years ago

Please help me?

Mathematics

2 answers:

lys-0071 [83]3 years ago

4 0

<span>B. -6y = 12 is the asnwer</span>

ANEK [815]3 years ago

3 0

Your answer would be B

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In order to set rates, an insurance company is trying to estimate the number of sick days that full-time workers at an auto repa

kotegsom [21]

Answer: 31

Step-by-step explanation:

Formula to find the sample size is given by :_

$n=(\dfrac{z^*\cdot \sigma}{E})^2$

, where z*= critical value corresponds to confidence level.

$\sigma$ = population standard deviation.

E= Margin of error.

As per given , we have

$\sigma=2.8$

E=1

We know that critical value corresponding to 95% confidence level = z*=1.96

Then, the required sample size would be :

$n=(\dfrac{(1.96)\cdot (2.8)}{1})^2$

$n=(5.488)^2$

$n=30.118144\approx31$

Hence, the required minimum sample size = 31

3 0

4 years ago

What is the value of x?

sladkih [1.3K]

If the angles are 90,45,45 so the sides except hypotenuse are congruent
and the hypotenuse is equal to :
${6 \sqrt{2} }^{2} + {6 \sqrt{2} }^{2} = {x}^{2} \\ {8.5}^{2} + {8.5}^{2} = {x}^{2} \\ 72.25 + 72.25 = {x}^{2} \\$
${x}^{2} = 144.5 \\ x = 12$

the answer is 12

hope this helps

6 0

4 years ago

Jeffrey is biking through the mountains. He bikes for six hours every day. When he started his ride one day the temperature was

Mashcka [7]

Answer:

Step-by-step explanation:

6 0

4 years ago

Trevor Linden, a former player for the Vancouver Canucks, is 1.93 m tall. On a hockey card, he is 5.4 cm tall. What scale was us

Anastaziya [24]

Answer:

scale used to print the hockey card is 27/965

scale used to print the hockey card in decimal is 1/35.74

Step-by-step explanation:

we know that in scale problems

scale is used in drawing to enlarge or reduce size of object by a certain amount

scale = size of object in drawing/ actual size of object

Height of trevor = 1.93 m

we know that 1 m = 100 cm

Height of trevor in cm = 1.93 m*100 = 193 cm (actual size)

(this is done so that unit of measurement is same for card and trevor's height i.e cm)

Trevor's card on hockey card = 5.4 cm(size in drawing)

scale used = Trevor's card on hockey card /Height of trevor in cm

= 5.4/193 = 54/ 1930 = 27/965

scale used to print the hockey card is 27/965

scale used to print the hockey card in decimal is 1/35.74

7 0

4 years ago

What percent of 21 is 88.83

statuscvo [17]

88.83×21=4.23%. plz follow for more answers

6 0

3 years ago