Can someone help with these questions please even if you don't answer all some will help.

Mathematics

1 answer:

sergij07 [2.7K]3 years ago

7 0

Answer:

Step-by-step explanation:

13) for ASA

here we know A and E are 90

given AC ≅ EF

so we need angle C and F need to be equal

because we need two angles and in between side

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The diameter of a circle is 12.6 cm find its perimeter

LiRa [457]

39.58 cm ! hope this helps !(:

4 0

4 years ago

Given the functions f(x) = 4x2 − 1, g(x) = x2 − 8x + 5, and h(x) = –3x2 − 12x + 1, rank them from least to greatest based on the

kvasek [131]

The axis of symmetry of a quadratic function $f(x)=ax^2+bx+c$ is given by the equation $x=h$ , where h is the x-coordinate of the vertex and is equal to $\frac{-b}{2a}$ .

1.
$f(x)=4x^2-1 \\
a=4 \\ b=0 \\ \Downarrow \\
h=\frac{-0}{2 \times 4}=0 \\ \\
\hbox{the axis of symmetry:} \\
x=0$

2.
$g(x)=x^2-8x+5 \\
a=1 \\ b=-8 \\ \Downarrow \\ h=\frac{-(-8)}{2 \times 1}=\frac{8}{2}=4 \\ \\
\hbox{the axis of symmetry:} \\
x=4$

3.
$h(x)=-3x^2-12x+1 \\
a=-3 \\ b=-12 \\ \Downarrow \\ h=\frac{-(-12)}{2 \times (-3)}=\frac{12}{-6}=-2 \\ \\
\hbox{the axis of symmetry: \\
x=-2$

The functions ranked from least to greatest based on their axis of symmetry: h(x), f(x), g(x).

7 0

3 years ago

24 men in a room 1/2 wearing red shirt 1/3 wearing green shirt the rest are wearing blue shirt

iogann1982 [59]

Answer:

12 red shirts

8 green shirts

4 blue shirts

Step-by-step explanation:

1/2 of the 24 people are wearing red shirts

Of means multiplication, so...

1/2 * 24 = 24/2 = 12, and do the same for the rest!