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2 years ago

Please help answer these questions

Mathematics

1 answer:

vfiekz [6]2 years ago

8 0

Step 1

given

Step 2

$\angle HKM \cong \angle OKM, \angle HMK \cong \angle OMK$

Step 3

$\overline{KM} \cong \overline{KM}$

Reason: Reflexive property

Step 4

ASA

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3) If 3 folders cost $2.70, then how much would 8 folders cost? *

Troyanec [42]

Answer:

2.70/3=0.9

0.9x8=7.20

Answer is 3 - $7.20

3 0

3 years ago

Read 2 more answers

Of 60 students, 24 students have a pet.

Sophie [7]

Answer:

Step-by-step explanation:

Ttl students are 60

No. Of students having pets is 24

Therefor

24:60 with pets

30:60 withot pets

8 0

3 years ago

Read 2 more answers

Evaluate the series: 2-10+50-250..., n=8

garik1379 [7]

The sum of first 8 terms of series is -130208

Solution:

Given that,

2 - 10 + 50 - 250 , ....

n = 8

Find the common ratio between a term and its previous term

$r = \frac{-10}{2} = -5\\\\r = \frac{-250}{50} = -5$

Thus common ratio is same

This is a geometric series

The sum of terms of geometric sequence is given as:

$S_n = \frac{a_1(1-r^n)}{1-r}$

Where,

r is the common ratio

n is the nth term

$a_1$ is the first term of series

From series,

$a_1 = 2\\\\r = -5\\\\n = 8$

Therefore,

$S_8 = \frac{2 \times (1 - (-5)^8)}{1-(-5)}\\\\S_8 = \frac{2 \times (1-390625)}{6}\\\\S_8 = -130208$

Thus sum of first 8 terms of series is -130208

6 0

4 years ago

Describe how to draw a line that passes through the origin and has a slope of -2/-3?

Sophie [7]

First of all you know it wiill be a positive slope as both the rise and the run are negative. a negative divided by a negative equals a positive. so you can plot the points (2,3) and (-2,-3) as they will be points on this line. next you take a straight line and place it so that both points are intercepted. then extend the line outwards.

7 0

4 years ago

Growth or decay help!!!!

Vsevolod [243]

If the antique's value increases over time, it must be growing (not decaying) in value.

We're told the value increases by 12.12%, which means that if the current value is $x$ , then the value after 1 year is $x+0.1212x=1.1212x$ . Each year, the value increases by the same factor, which means after 2 years, the value is $1.1212(1.1212x)=1.1212^2x$ ; after 3 years, the value is $1.1212^3x$ ; and so on.

Here $x$ is the starting value of the antique. So the answer is the second choice.

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3 years ago