3 years ago

How can i prove this? Please someone help i get 100points

Mathematics

2 answers:

Varvara68 [4.7K]3 years ago

8 0

Answer:

I can look it up, what's this calle?

Step-by-step explanation:

MA_775_DIABLO [31]3 years ago

3 0

Typing.................

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which statement best explains why the sum of the areas of the two white squares in figure 2 is the same as the area of why squar

Stella [2.4K]

Answer:

"In each figure the total area is equal and the area of the 4 triangles is equal, so the remaining white area in each figure must also be equal."

Step-by-step explanation:

Both figures make up congruent squares, and they are made up of 4 congruent triangles, so the white area in between must be equal between the two figures

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3 years ago

5 and -7 are the solutions to (x-5) (x+7) =12

konstantin123 [22]

Answer: No

Step-by-step explanation:

$(x-5)(x+7)=12$

Replace x for 5 and -7 separately.

$(5-5)(5+7)=12\\0(12)=12\\0=12$

$(-7-5)(-7+7)=12\\-12(0)=12\\0=12$

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3 years ago

PLEASE SOMEBODY ANSWER

Kipish [7]

Answer:

Step-by-step explanation:

2ab cos C=a²+b²-c²

2×31×14 cos C=31²+14²-40²

868 cos C=961+196-1600=-443

cos C=-443/868

C=cos^{-1}(-443/868)≈120.688≈120.69°

by sine formula

m∠B=180-(62+55)=180-117=63°

$\frac{AC}{sin~B} =\frac{AB}{sin~C} \\\frac{240}{sin 63} =\frac{AB}{sin~55} \\AB=\frac{sin~55}{sin~63} \times 240 \approx 220.645 \approx 220.65 ~ft$

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3 years ago

What is the best estimate for the mass of a textbook, 1 gram or 1 kilogram

Delicious77 [7]

The best estimate would be one kilogram since one gram is about the mass of a paperclip.

7 0

3 years ago

Read 2 more answers

Please help:

Vedmedyk [2.9K]

Answer:

1 13/36

Step-by-step explanation:

i just subtracted 1 3/4 from 3 1/9

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3 years ago