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3 years ago

Could anyone help me with this easy math ?

Mathematics

2 answers:

Charra [1.4K]3 years ago

8 0

Answer:

alternate angle, opposite angles are the same, 3x-3 = 147

x = 144/3 , x =48

Step-by-step explanation:

Fofino [41]3 years ago

8 0

Answer:

Type is an acute angle! Key info is ¨(3x-3)* and 147*¨ equation would be (3x-3)-147

Step-by-step explanation:

hope this helps!! :)))

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Find the surface area! Thank you!!

Evgen [1.6K]

Answer:

$SA= 720 m^2$

Step-by-step explanation:

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hope it helps...

have a great day!!

6 0

3 years ago

Read 2 more answers

Can someone answer these questions ? thank you

Naya [18.7K]

Answer:

Step-by-step explanation:

12a)To rationalize the denominator, multiply the denominator and numerator by √5.

$\frac{15}{\sqrt{5}}=\frac{15*\sqrt{5}}{\sqrt{5}*\sqrt{5}}\\\\=\frac{15\sqrt{5}}{5}\\\\=3\sqrt{5}$

b) (a+b)² = a² + 2ab + b²

(1 +√3)² = 1² + 2*1*√3 + (√3)²

= 1 + 2√3 + 3

= 4 + 2√3

a = 4 ; b =2

13) (a + b)(a - b) = a² - b²

$\frac{(6-\sqrt{5})(6+\sqrt{5})}{\sqrt{31}}=\frac{6^{2}-(\sqrt{5})^{2}}{\sqrt{31}}\\\\ =\frac{36-5}{\sqrt{31}}\\\\=\frac{31}{\sqrt{31}}\\\\=\frac{31*\sqrt{31}}{\sqrt{31}*\sqrt{31}}\\\\=\frac{31\sqrt{31}}{31}\\\\=\sqrt{31}$

5 0

4 years ago

HELPPPP If y=4, 3y+6=7(2y-3)

Step2247 [10]

Answer:

i think your question is missing something??

Step-by-step explanation:

3(4) + 6 = 7 (2(4)-3)

12 + 6 = 7 (8-3)

18 = 7 (5)

18 = 35?

8 0

3 years ago