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3 years ago

Help Me! Fake Answers will be reported. How many triangles are there in this picture?

Mathematics

1 answer:

vaieri [72.5K]3 years ago

8 0

Im sorry if you get this wrong but im going with 14 only because i did this question with my class in school and a boy said 14 and got it right.

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Find the slope of the line perpendicular to the graph y-1/5x =7

Dmitrij [34]

Answer:

-5

Step-by-step explanation:

y- 1/5x = 7

y= 1/5x +7

So, the slope of the line is 1/5

Perpendicular slopes are always the reciprocal with an inverse sign.

So, -5

8 0

3 years ago

- 18.5 = - 2(7f + 7.5)

olasank [31]

-18.5 = -2 (7f + 7.5)
-18.5 = -2×7f + (-2)×7.5
-18.5 = -14f + (-15)
-18.5 = -14f - 15

add 15 to both sides
-18.5 +15 = -14f - 15 + 15
-3.5 = -14f

f = -3.5/-14 = 0.25

6 0

3 years ago

An infinite geometric series has 1 and 1/5 as its first two terms: 1, 1/5, 1/25, 1/125, . . . What is the sum, S, of the infinit

dezoksy [38]

Answer: $\dfrac{5}{4}$

Step-by-step explanation:

Given: The first term of Geometric series : a=1

The seconds term of Geometric series : $ar=\dfrac{1}{5}$

The common ratio between the terms is given by :-

$r=\dfrac{ar}{a}=\dfrac{\frac{1}{5}}{1}=\dfrac{1}{5}$

We know that the sum of infinite geometric series is given by :-

$S_{\infty}=\dfrac{a}{1-r}\\\\\Rightarrow\ S_{\infty}=\dfrac{1}{1-\frac{1}{5}}=\dfrac{1}{\frac{4}{5}}\\\\\Rightarrow\ S_{\infty}=\dfrac{5}{4}$

Hence, the sum of the given infinite series = $\dfrac{5}{4}$

7 0

3 years ago

HELP ASAP PLEASE

bearhunter [10]

I think is D,,,,,,,,,,,,,,,,,,,,

3 0

3 years ago

Write 0.4 as a fraction or mixed number

sammy [17]

the answer of 0.4 is 2/5 or 2 1/5

4 0

3 years ago

Read 2 more answers