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Angelina_Jolie [31]
4 years ago
11

Help ASAP please!!!

Mathematics
2 answers:
inna [77]4 years ago
5 0

Answer: Option B  0.94 is correct

Explanation:

Mean is the sum of given observations divided by the total   observations given. It is also the average or arithmetic average of observations.

Here we have sum of observations is 1+0.5+0.3+0+0+0+1.2+3+0+1.1+0.7+2+1.3+2 =  13.1

and total observations are 14

mean=\frac{\text{sum of observations}} {\text{total observation}}

Now we substitute the values of sum of observation and total  observation into  above formula and we get  

Mean =  \frac{13.1}{14} = 0.93571 \approx 0.94  

Hence, mean = 0.94

So, option B is correct

tatyana61 [14]4 years ago
3 0
U should add all the #s together so... it = 11.3
then divide by the # of terms. so...... 11.3/ 14= 0.9357 (rounded makes 0.94) 


So .... B
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Two diameters of circle P are AB and CD. Find the measure of arc ACD and arc AC when arc AD has a measure of 20 degrees
steposvetlana [31]

Answer:

Hence measure of arc ACD and arc AC are 340 degrees and 160 degrees respectively.

Step-by-step explanation:

Given:

A Circle with p as center and AB and CD as 2 diameters for a circle.

To Find:

Measure of ACD, and arc AC when arc AD is 20 degrees.

Solution:

<em>As we know that , Diameter is biggest chord which passes through center of circle,</em>

<em>Hence it divides the circle into two equal parts and making center as midpoint of it</em> .

(Refer the attachment)

angle APD=20 degree or arc AD=20 degree.

So AB as diameter ,so  arc DB=160 degree  or BPD=160 degree as A-B-P are

and angle APD and BPC are vertical opposite angles so they are congruent BPC=20 degree

Now,

points A,C,B,D,A makes circle which measures 360 degrees.

to find ACD

measure of ACD=360-(meaure of arc AD or angle APD)

=360-20

=340 degree.

Now arc AC,

as AB is diameter with p as midpoint ,A-P-B

arc APB=180 and arc BC=20 or angle BPC=20 degrees.

For measure of arc AC= measure of arc APB- arc BC

arc AC=180-20 degrees.

arc AC=160 degrees.

5 0
4 years ago
4462 mm² in m²
Varvara68 [4.7K]

Answer:

0.004462m²

612000m²

0.0482m²

Step-by-step explanation:

Using the conversion

1mm² = 10^-6m²

4462mm² = x

Cross multiply

1 * x = 4462 * 10^-6

x = 4462 * 10^-6

x = 4.462 * 10^3 * 10^-6

x = 4.462*10^{3-6}

x = 4.462*10^-3

x = 0.004462m²

Hence 4462 mm² in m² is 0.004462m²

0.612 km² in m²

1km² = 10^6m²

0.612km² = y

Cross multiply

1 * y = 0.612 * 10^6

y = 0.612*1,000,000

y = 612000m²

Hence 0.612 km² in m² is 612000m²

482 cm² in m²

1cm² = 0.0001m²

482 cm²  = z

z = 482 * 0.0001

z = 0.0482m²

Hence 482 cm² in m² is 0.0482m²

6 0
3 years ago
Pls help extra points
Step2247 [10]

Answer:

B

the middle one

Step-by-step explanation:

3 0
3 years ago
What is the answer 101/8+(35/8+27/8
suter [353]

Answer:

\frac{163}{8}

Step-by-step explanation:

The sum already has common denominators so there is no need to change the denominators. Just add the numerators.

\frac{35}{8} + \frac{27}{8} = \frac{62}{8}

\frac{101}{8} + \frac{62}{8} = \frac{163}{8}

4 0
4 years ago
Read 2 more answers
The mass of a block of stone is 4,500 kg.. If the stone has a volume of 0.5 m3 , what is the density?
vodomira [7]

Answer:

your and is b.

Step-by-step explanation:

mass(m)=4,500

volume(v)=0.5m³

now,

density=<u>m</u>

v

=<u>4</u><u>5</u><u>0</u><u>0</u>

<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>0.5

=9000kg/m³

6 0
3 years ago
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