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nydimaria [60]
4 years ago
13

PLEASE HELP I NEED TO PASS THIS CLASSS!!!!!!!!!!

Mathematics
1 answer:
Nuetrik [128]4 years ago
5 0

Answer:

1, 2, 4

Step-by-step explanation:

The triangles are similar by AAA or SSS (yes)

The sides are proportional (yes)

The length of AB is 21, not 15 (no)

The length of BC is 9 (yes)

The dilation is an enlargement, not reduction (no)

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A company president flew 990 miles in a corporate jet but returned in a smaller plane that could fly only half as fast. If the t
kotegsom [21]

I'm not completely sure but I think the answer is:

corporate jet 16.5 mph

smaller plane 33 mph

Good luck

5 0
3 years ago
If it takes 6.3 pounds of seed to plant one acre of grass, how many acres can be planted with 6.93 pounds of seed
ArbitrLikvidat [17]

Answer:

1.1 acre land

Step-by-step explanation:

7 0
3 years ago
F(x)=2x^2+1 using the derivate definition
morpeh [17]
\bf \stackrel{\textit{de} \textit{finition of a derivative as a limit}}{\lim\limits_{h\to 0}~\cfrac{f(x+h)-f(x)}{h}}\\\\
-------------------------------\\\\
f(x)=2x^2+1\implies \lim\limits_{h\to 0}~\cfrac{[2(x+h)^2+1]~~-~~[2x^2+1]}{h}
\\\\\\
\lim\limits_{h\to 0}~\cfrac{[2(x^2+2xh+h^2)+1]~~-~~[2x^2+1]}{h}
\\\\\\
\lim\limits_{h\to 0}~\cfrac{[2x^2+4xh+2h^2+1]~~-~~[2x^2+1]}{h}

\bf \lim\limits_{h\to 0}~\cfrac{\underline{2x^2}+4xh+2h^2\underline{+1}~~~~\underline{-2x^2-1}}{h}\implies \lim\limits_{h\to 0}~\cfrac{4xh+2h^2}{h}
\\\\\\
\lim\limits_{h\to 0}~\cfrac{2\underline{h}(2x+h)}{\underline{h}}\implies \lim\limits_{h\to 0}~2(2x+h)\implies \lim\limits_{h\to 0}~2(2x+0)\implies 4x
3 0
3 years ago
At 5:00 a.M., the temperature outside was 1°F below zero. By noon, it rose by 12°F. At 7:00 p.M., the temperature dropped by 6°F
denpristay [2]

Answer:

7

Step-by-step explanation:

1+12-6=7

7 0
3 years ago
How do you write 10 times the square root of 13
Nostrana [21]
You can use the symbol over 13 or you can write it like

10 square root (13)

The answer to that is 36.0555127546

Hope this helps!
7 0
3 years ago
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