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2 years ago

Find 12+23+34+...100101

Mathematics

1 answer:

Rzqust [24]2 years ago

5 0

Answer:

What kind of mathematics is this?

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What is the inverse function of f(x) = (x+4)/(x-2) ?

Pie

The answer is $f^-1(x)= -2(2+x)/1-x$ .

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2 years ago

To find the height of a pole, a surveyor moves 160 feet away from the base of the pole and then, with a transit 6 feet tall, mea

Artyom0805 [142]

Answer:

306.8 feet

Step-by-step explanation:

Refer the attached figure .

A surveyor moves 160 feet away from the base of the pole i.e. ED = 160 m

Referring the image .

AC=ED=160 m

A transit i.e. AE is 6 feet tall.

AE = CD=6 feet

With a transmit the angle of elevation to the top of the pole to be 62° i.e. ∠BAC = 62°

To Find BC , use tigonometric ratio.

$Tan\theta = \frac{Perpendicular}{Base}$

$Tan 62^{\circ}=\frac{BC}{AC}$

$Tan 62^{\circ}=\frac{BC}{160}$

$1.88*160=BC$

$300.8=BC$

Now, the height of the pole = BC+CD =300.8+6=306.8 feet

Hence the height of the pole is 306.8 feet

7 0

3 years ago

PLEASE HELP ILL GIVE BRAINLIEST

Schach [20]

Answer:

is 6

Step-by-step explanation:

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6 0

2 years ago

Sonji has $5.25 in nickels and dimes.The coin value can be modeled by the equation 0.10d + 0.05n = 5.25, where d represents the

barxatty [35]

To find the number of nickels and dimes, we can use this equation: 0.10d + 0.05n = 5.25

We are given the information that Sonji has 21 dimes (which means that d=21). We can use the equation to find the number of nickels n.

0.10d + 0.05n = 5.25
0.10(21) + 0.05n = 5.25
2.10 + 0.05n = 5.25
0.05n = 3.15
n = 3.15 / 0.05
n = 315 / 5
n = 63

Sonji has 63 nickels.

Let's check our answer.
21(0.10) + 63(0.05) = 2.10 + 3.15 = 5.25
It seems that our answer is correct.

7 0

3 years ago

Read 2 more answers

Determine all the factors for the following expression(Note: you will need to use the Rational Root Theorem more than one time)

Aleks [24]

ANSWER

Possible rational roots: ±1,±2,±3,±4,±6,±12±1,±2,±3,±4,±6,±12

Actual rational roots: 1,−1,2,−2,−3

see attachments for all steps.