2 years ago

How do you figure out proofs

Mathematics

1 answer:

Monica [59]2 years ago

6 0

Answer:

By giving reasons to the statements

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Help due soon plss!!!!

Gelneren [198K]

Answer:

Cube=150cm^2

Triangular Prism=228ft^2

Step-by-step explanation:

Cube

$A=6a^2=6*5^2=150cm^2$

Triangular prism

Using these formulas

$A=2A_{B}+(a+b+c)h\\A_{B} =\sqrt{s(s*a)(s*b)(s*c)} \\s=\frac{a+b+c}{2}$

Solving for A

$A=ah+bh+ch+\frac{1}{2} \sqrt{-a^4+2(ab)^2+2(ac)^2-b^4+2(bc)^2-c^4} \\=6.5*11+5*11+6.5*11+\frac{1}{2} *\sqrt{-6.5^4+2*(6.5*5)^2+2*(6.5*6.5)^2-5^4+2*(5*6.5)^2-6.5^4} \\=228ft^2$

5 0

2 years ago

Work out m and c for the line: y -4x= − 1

Lelu [443]

Step-by-step explanation:

$y = 4x - 1 \\ m = 4 \\ c = - 1$

8 0

2 years ago

Read 2 more answers

PLEASE HELP ANSWER BOTH PARTS!!! DUE SOON

soldi70 [24.7K]

Answer:

c. 69

b. 7

Step-by-step explanation:

4 0

1 year ago

Plz help me with this! Thx in advance! <br> (I need to show work)

andrew-mc [135]

A. 35/100 * 240 = 35 * 240 / 100 = 84
B.125/100 * 80 = 125 * 80 /100 = 100
C. 60/ 75% = 60 * 100 / 75 = 8
D. 45 / 15% = 45 * 100/ 15 = 300

7 0

2 years ago

PLS HELP!

Marina CMI [18]

Answer:The domain for f(x) and g(x) is the set of all real numbers. Let f(x) = 2x2 + x − 3 and g(x) = x − 1. Find f(x) • g(x). The domain for f(x) ...

1 answer

How do you figure out proofs​

How do you figure out proofs