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4 years ago

3135 divided 5 and 1052 divided 4

Mathematics

2 answers:

Vanyuwa [196]4 years ago

6 0

3135/5 is 627 and 1052/4 is 263

fenix001 [56]4 years ago

3 0

3135/5 = 627
1052/4 = 263

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Suppose that it takes 4 hours of labor time to paint a room and 4 hours to sand a floor. if two workers each spend 12 hours pain

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It would be three floors because 4x3= 12

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3 years ago

Do all 4 pls woowowowowowowowowoowwoowow owo thththth

Ivan

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1) -9

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3) -2

4) 9

Step-by-step explanation:

6 0

3 years ago

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A gallon of milk cost $2.90 in 2002. In 2018, it cost

lutik1710 [3]

Answer:

<em>The cost of a gallon of milk changed 31%</em>

Step-by-step explanation:

<u>Percent Change</u>

Is the difference between two values of the same variable in different times or conditions, expressed as a percentage of the original value.

The formula is:

$\displaystyle Pc=\left |\frac{v1-v2}{v1} \right |\cdot 100\%$

Where

v1 = original value

v2 = final value

The gallon of milk cost v1=$2.90 in 2002 and v2=$3.80 in 2018. The percent change is:

$\displaystyle Pc=\left |\frac{2.90-3.80}{2.90} \right |\cdot 100\%$

$\displaystyle Pc=\left |\frac{-0.9}{2.90} \right |\cdot 100\%$

Pc = 31%

The cost of a gallon of milk changed 31%

8 0

3 years ago

A central angle theta in a circle of radius 7 m is subtended by an arc of length 8 m. Find the measure of theta in degrees. (Rou

gogolik [260]

Answer: In degrees , The measure of $\theta=65.5^{\circ}$

In radians , the measure of $\theta =\dfrac{8}{7}\text{ radians}$ .

Step-by-step explanation:

We know that the formula for length of arc is given by :-

$l=\theta r$

, where $\theta$ = Central angle subtended by arc.

r= radius of the circle.

As per given , we have

Radius of circle : r=7 m

Length of arc : l= 8 m

Substitute these values in the above formula , we get

$8=\theta (7)\\\\\Rightarrow\ \theta =\dfrac{8}{7}\text{ radians}$

Hence, the measure of $\theta =\dfrac{8}{7}\text{ radians}$ .

To convert it into degrees we multiply it with $\dfrac{180^{\circ}}{\pi}$

The measure of $\theta =\dfrac{8}{7}\times\dfrac{180^{\circ}}{\pi}$

$=(\dfrac{8\times180}{7\times3.14})^{\circ}=65.5141037307^{\circ}$

$\approx65.5^{\circ}$

Hence, the measure of $\theta=65.5^{\circ}$

8 0

3 years ago

A company wants to estimate the mean net weight of all 32-ounce packages of its yummy taste cookies at 95% confidence. it is kno

Georgia [21]

Standard deviation= σ= 0.1
Confidence interval= 95%= 0.95
Significance level=α= 1-0.95= 0.05
α/2 = 0.025
At α/2 z( α/2 ) =1.960 [from statistic table]
Now,
the sample size at error of 0.02 is
0.02=z( α/2 )σ/√n
0.02=(1.960)*(0.1)/√n
5/49 = 1/√n
√n=49/5
n=96.04
n should be 96 or greater

4 0

3 years ago