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3 years ago

47100 was rounded to the nearest hundred. What is the lower bound? Help plz

Mathematics

1 answer:

alexgriva [62]3 years ago

4 0

Answer:

47,100.00

Step-by-step explanation:

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The relationship between women’s whole-number shoe sizes and foot lengths is an arithmetic sequence, where an is the foot length

ad-work [718]

Answer:

The explicit formula for Arithmetic Sequence is $a_n=7.02+0.33n$

Step-by-step explanation:

Given: Foot length & shoe size in AP.

$a_n$ is foot length and n is shoe size.i.e., $a_{12}=11\:and\:a_7=9.33$

To find: Formula for Arithmetic sequence .i.e., $a_n$

From question,

$a_{12}-a_7=11-9.33=1.67$

Also, we know that

$a_{12}=a_7+5d\\5d=a_{12}-a_7\\5d=1.67\\d=\frac{1.67}{5}\\\\d=0.33$

Now, consider

$a_7=a_1+6d\\a_7=a+6d\\a=a_7-6d\\a=9.33-6\times0.33\\a=9.33-1.98\\a=7.35$

Thus using formula of $a_n$ we get,

$a_n=a+(n-1)d\\a_n=7.35+(n-1)\times0.33\\a_n=7.35+0.33n-0.33\\a_n=7.02+0.33n$

Therefore, The explicit formula for Arithmetic Sequence is $a_n=7.02+0.33n$

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3 years ago

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PLEASE LOOK AT PICURE!!! I WILL MARM BRAINIEST TO WHOEVER IS CORRECT!!!

VikaD [51]

Answer:

Step-by-step explanation:

If you want it in decimal form it should be 8.94427190.. and so on it wants it to the nearest hundredth so its just 8.94? I hope this helps the exact form not in decimal form is 4√5.

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3 years ago

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Find the midpoint between 1,5 and 7,-3

vivado [14]

Answer:

the midpoint is (4,0)

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4 years ago

An isosceles right angled triangle is shown. The area of the triangle is 200cm squared.Work out the value of the x

Licemer1 [7]

Answer:

x=20 cm

Step-by-step explanation:

Let x be the length of equal sides.

Area of triangle= $200cm^2$

We have to find the values of x.

We know that

Area of right triangle= $\frac{1}{2}bh$

Where b=Base of triangle

h=Height of triangle

Using the formula

Area of right triangle= $\frac{1}{2}x^2$

$200=\frac{x^2}{2}$

$x^2=200\times 2$

$x^2=400$

$x=\sqrt{400}$

$x=20cm$

Hence, the value of x=20 cm

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3 years ago

What is shift y = 5x 3 units up.

alukav5142 [94]

Y=5x+3. because your y axis is moved

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3 years ago