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3 years ago

PLSSSS HELLPPPP MEEEEE I WILLL GIVEEE BRAINLIESSSTTT!!!!

Mathematics

1 answer:

VMariaS [17]3 years ago

8 0

Answer:

Step-by-step explanation:

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At 3pm, Mikayla’s shadow was 1.2 meters long. Mikayla is 1.7 meters tall. She measures a tree’s shadow to be 7.5 meters. How tal

NeX [460]

2.5 meters is the answer

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3 years ago

Read 2 more answers

What is the square root of -6.76

mojhsa [17]

Answer:

2.6i

Step-by-step explanation:

undo the - by making it: √-6.76= √6.76 x √-1

then, √-1 would be converted to imaginary number -> i

now rewrite it as √6.76 x i or i√6.76 which is the same as the squareroot of 6.76 which is 2.6 times i.

Then just write your final answer as 2.6i

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3 years ago

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What is 0.95 to the 9th power?

Dahasolnce [82]

Answer:

0.6302494097

Step-by-step explanation:

Multiply 0.95, 9 times. Not 0.95×9 though.

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3 years ago

What is the midpoint of a segment with These endpoints (-12,-3) and (3,-8)

Savatey [412]

Answer:

$(\frac{-9}{2},\frac{11}{2})$

Step-by-step explanation:

you have to use the midpoint formula which is

$(\frac{x1+x2}{2},\frac{y1+y2}{2})$

so you plug your numbers in

$(\frac{-12+3}{2},\frac{-3+-8}{2})$

Add the tops

$(\frac{-9}{2} ,\frac{-11}{2} )$

if possible simplify

and that is your answer

8 0

3 years ago

Prove that : sinA/1+cosA + 1+cosA/sinA=2cosecA

tekilochka [14]

Step-by-step explanation:

$\frac{sinA}{1+cosA} +\frac{1+cos}{sinA} =2cosec\\\\\\\frac{sin^{2}A+(1+cos)^{2} }{sinA(1+cosA)} \\\\$

$\frac{sin^{2}A+1+cos^{2}+2cos}{sinA(1+cosA)} \\\\$ and we have $sin^{2}+cos^{2} =1$

so $\frac{1+1+2cosA }{sinA(1+cosA)} \\\\$

$\frac{2+2cosA }{sinA(1+cosA)} \\\\$

$\frac{2(1+cosA)}{sinA(1+cosA)} \\\\$

$\frac{2}{sinA}$ we have $\frac{1}{sin}=cosec\\$

Finally $2cosecA$

I really hope this helps coz it took much time

3 0

3 years ago