3 years ago

What is the measure of angle TRV? 20° 50° 60° 130°

Mathematics

1 answer:

Svetllana [295]3 years ago

8 0

Answer: 130

Step-by-step explanation:

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What is the m ZACB? 10° 50° 90° 180°

kifflom [539]

Answer:

50 deg

Step-by-step explanation:

In an right triangle, the acute angles are complementary. That means their measures have a sum of 90 deg.

m<C + m<B = 90

7x - 20 + 4x = 90

11x = 110

x = 10

m<ACB= 7x - 20

m<ACB = 7(10) - 20

m<ACB = 70 - 20

m<ACB = 50

Answer: m<ACB = 50 deg

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2 years ago

Find each unit cost $12 for 4 square yards $3.45 for 3.7 oz $9 for 5 L

Alinara [238K]

$3 for 1 square yard
$0.93 for 1 oz
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3 years ago

What should be added to a²-2ab+b² to get a²-ab-2b²

dybincka [34]

SOLUTION:

what should be added to a²-2ab+b² to get a²-ab-2b²

let the added no is P

$\pmb{P+(a^2-2ab+b^2)=(a^2-ab-2b^2) }$

$\pmb{P=(a^2-ab-2b^2)-(a^2-2ab+b^2) }$

$\pmb{P=a^2-ab-2b^2-a^2+2ab-b^2 }$

$\pmb{P=ab-3b^2 }$

$\therefore{\pmb{ab-3b^2 }}$ should be added to a²-2ab+b² to get a²-ab-2b²

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2 years ago

5. If circle A. AB=DE B. BC=DE C. CF AE D. BFC = DFC

notka56 [123]

First option is correct. AB=DE

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3 years ago

Read 2 more answers

a storage tank has the dimensions shown below how many storage tanks are needed to contain 60000 cubic meters of liquid

Sladkaya [172]

First find the volume of that container

R = pi (r)^2h
R = pi (15.21)(12.4)
R = 592.5169408

60,000 / R = 101.2629275

102 storage tanks

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3 years ago