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liq [111]
3 years ago
6

I need help pleasssss

Mathematics
1 answer:
Yakvenalex [24]3 years ago
4 0

Answer:

  3)  16.2

Step-by-step explanation:

The supplement to the 115° angle on the right is 65°, the same as the angle at upper left. The vertical angles at C are the same measure, so this tells you that the two triangles FCB and ACD are similar by the AA similarity postulate. That being the case, corresponding sides are proportional:

  CB/CD = CF/CA

  CB = CD·CF/CA = 7.2·21.6/9.6

  CB = 16.2

_____

When given two "point-to-point" triangles like this, quite often there is some sort of similarity relationship involved. First, you need to figure out what it is; then you need to make use of it as needed to answer the question being asked.

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Can somebody help me out? I’ll mark as brainliest.
Fofino [41]

Answer:

f(x) = -5x - 14

Step-by-step explanation:

this table represent a straight line : y = mx +c

first find m which is the slope

m = (-24 - -19)/(2-1)  = -5

then find c

-19 = -5(1) + c , c = -14

thus f(x) = -5x -14

4 0
3 years ago
Which algebraic expression is a trinomial?
Goryan [66]

Answer: A trinomial consisting of three terms.

Step-by-step explanation: An example of trinomial is 6x squared + 3x + 5.

7 0
3 years ago
Factor the trinomial x^2 + 6x - 27
krek1111 [17]
If you factor the trinomial using the AC method the answer would be 

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5 0
3 years ago
Read 2 more answers
How do you round the area of a circle with 3.14?
kirill115 [55]

Answer:

(This is a example since you don’t have anything to round to)

Example Answer if the radius is 4 - 50.24

Step-by-step explanation:

Example Radius : 4

Area : 3.14

We have the mulitiply 3.14 times The Example Radius 2 times because The diameter of a circle is 2 times its radius.

( 3.14 x 4 x 4) 50.24

If you know the diameter, it’s a half or 1/2 as large.

Therefore, if the radius was 4, it would be 50.24.

Youre welcome :)

7 0
2 years ago
There are two similar packages. The ratio of the volumes is 8:125. Determine the dimensions of the bigger package. The dimension
GREYUIT [131]

Step-by-step explanation:

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Height of bigger package =<em><u>4</u></em><em><u>5</u></em><em><u>×</u></em><em><u>1</u></em><em><u>2</u></em><em><u>5</u></em><em><u>/</u></em><em><u>8</u></em><em><u>=</u></em><em><u>7</u></em><em><u>0</u></em><em><u>3</u></em><em><u>.</u></em><em><u>1</u></em><em><u>2</u></em><em><u>5</u></em><em><u>cm</u></em>

4 0
2 years ago
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