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3 years ago

5-x=3 work out the value of 3x squared

Mathematics

1 answer:

kati45 [8]3 years ago

8 0

Answer:

z0mb13br41n5f1r3k1ng

Step-by-step explanation:

answer is 2

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Help me with #5 pleaseeeeeeeeeee

earnstyle [38]

Answer:

$\angle 1 = 45$ degrees

Step-by-step explanation:

Sum of 3 angles in a triangle is 180..

The angles given are:

7x + 12

So we sum to 180 and write:

$60+7x+12+\angle 1=180\\72+7x+\angle 1=180\\7x+\angle 1=108$

Also, straight angle is 180 degrees, thus Angle 1 and (14x + 9) angle is sum to 180, thus we can write:

$14x+9+\angle 1=180\\14x + \angle 1=171$

Or we can write this as:

$14x + \angle 1=171\\\angle 1 = 171 - 14x$

We substitute this expression for Angle 1 into 1st equation we got and solve for x first,

$7x+\angle 1 = 108\\7x+( 171 - 14x)=108\\-7x=-63\\x=9$

Since x = 9, the angle "14x + 9" would be:

14(9) + 9 = 135

Hence Angle 1 would be:

$\angle 1 + 14x + 9 = 180\\\angle 1 + 135 = 180\\\angle 1 = 45$

6 0

3 years ago

How to you solve 7 7/10- 3 4/5

Vera_Pavlovna [14]

Make them both improper fractions.
77/10 - 19/5

Give them common denominators (multiply the second fraction by 2)
77/10 - 38/10

Subtract
39/10 = 3 9/10

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3 years ago

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What is the slope below?? Please answer quickly! Due tonight.

rosijanka [135]

1.25 is the slope 5/4 rise over run

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2 years ago

A_____ function is a function that can be expressed as the quotient of two polynomial functions in wich the denominator does not

Korolek [52]

Answer:

rational

Step-by-step explanation:

that is literally the definition of a rational number, just change the part where it says function to number and polynomial functions to number as well.

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3 years ago

How many times can 27 go into 192

lutik1710 [3]

It can go into 192 7.1 times

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3 years ago

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