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3 years ago

Which point on the number line represents the rational number -2 3/5

Mathematics

1 answer:

erik [133]3 years ago

4 0

Answer:

Step-by-step explanation:

A number line is a line that can be used to show the position of directed numbers. It has the negative numbers to its left ( i.e before zero) and positive number to the right (i.e after zero).

Rational numbers are positive or negative integers, fractions or decimals.

The rational number -2 $\frac{3}{5}$ = - $\frac{13}{5}$ = -2.6 can be shown on the number line as indicated in the image attached to this answer.

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Can someone please help me with 44. And 45?

Angelina_Jolie [31]

Problem 44

The term "bisect" means "cut in half".

Since BD bisects angle ABC, this means the smaller angles ABD and DBC are congruent.

angle ABD = angle DBC

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60 = 3x

3x = 60

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<h3>Answer: x = 20</h3>

========================================================

Problem 45

We use the same idea as the previous problem

angle ABD = angle DBC

2x+35 = 5x-22

35+22 = 5x-2x

57 = 3x

3x = 57

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3 years ago

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Please Help I Don't Undertand.

frozen [14]

If triangles AMN and ABC are similar, then

AM/AB = AN/AC

AM/(AM + MB) = AN/(AN + NC)

Check if this is true:

AM/AB = 21/(21 + 9) = 21/30 = 7/10

AN/AC = 14/(14 + 6) = 14/20 = 7/10

The angle at vertex A is common to both of the triangles.

Then by the side-angle-side (SAS) similarity theorem, the triangles are indeed similar.

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2 years ago

Multiply and simplify<br><br><img src="https://tex.z-dn.net/?f=35%20%5Ctimes%20%20%5Cfrac%7B7%7D%7B10%7D%20" id="TexFormula1" ti

Kobotan [32]

We can convert 7/10 to a decimal first.

7/10 = 0.7

Now we can multiply this problem easier.

35 x 0.7 = 24.5

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3 years ago

Olivia goes to Egypt and saw a model of triangle shaped pyramid. She enlarged it using a scale factor of 1.2. What will be the p

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3 years ago

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Tanzania [10]

Answer:

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Step by step explanation-

Given-

Diameter of circle (d) = 23 units
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Now,

<h3> $\mathfrak {circumference \: of \: circle = \pi d }$ </h3>

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3 years ago

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