Notice the tickmarks on the graph, those two sides are equal, and those two angles are also equal, now, the (4x-10) side, is shared by both triangles above and below.
namely the triangles above and below have a [S]ide and then an [A]ngle and then a [S]ide in common, thus they're congruent by SAS.
what does that mean? well, it means that 8x-2 = 3x - 5, and you know the rest then.
though for some reason you put a line through the -, to make it 3x+5, so, dunno what it might be, but those sides are congruent either way.
A. Convert to vertex form:-
= -0.8(x^2 - 4x) + 6
= -0.8 ((x - 2)^2 - 4)) + 6
= -0.8(x - 2)^2 + 9.2
Maximum height of the ball is 9.2 feet Answer
b. horizontal distance at this height = 2 feet. Answer
c. this distance will be the positive root of f(x) = 0
-0.8(x - 2)^2 = -9.2
(x - 2)^2 = 11.5
xi-2 = sqrt 11.5 = 3.39
required distance = 5.39 = 5.5 feet answer
A) Here's your table as far as I can determine. Start by filling in the given numbers. The rest is simple addition and subtraction.
B) 5/100 = 5% of respondents don't like either volleyball or soccer.
C) 20% dislike soccer; 55% dislike volleyball. It seems that there is a greater dislike for volleyball.
Answer:
the answer is 611.2
how,-3.3x
611.2
=6
there before 614.2 there come always+if there is nothing
then,there is- before-3.3x then rule=
<h3>- + +=-</h3>
so we have to substract it
1) 3 people
2) 20 people like mathematics only
3) 7 people like both mathematics and English
<h3>What is set?</h3>
A set is a collection of well defined elements.
Analysis:
number of people in the class = 45
number that like mathematics or English or both = 42
number that like both subject = x
number that like mathematics only = 27 - x
number that like English only = 22 - x
1) number that did not like any subject = 45 - 42 = 3
27 - x + x + 22 -x = 42
49 - x = 42
x = 49 - 42 = 7
2) number that like mathematics only = 27 - 7 = 20
3) number that like mathematics and English = 7
Learn more about set: brainly.com/question/2166579
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