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2 years ago

What is the measure of this angle? A. 60 B. 120 C. 125 D. 80

Mathematics

1 answer:

Umnica [9.8K]2 years ago

3 0

60, because 120 is bigger than a right angle, and the picture shows that it is definitely smaller than a right angle.

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Find cos x if sin x cot x = 0.5

vova2212 [387]

Answer:

cos x = 0.5

Step-by-step explanation:

cot x = (cos x) / (sin x)

sin x (cot x) = 0.5

cos x = 0.5

7 0

2 years ago

The sum of 6 times a position number and 1 is the same as the sauare of 1 less than the number

stepan [7]

If the number is x, then:
6x+1= (x-1)^2

Now we just need to simplify it
6x+1=(x-1)*(x-1)
6x+1=x^2-2x+1
8x=x^2
8=x

The number is 8.

To check the answer
6*8+1=7^2
49=49
correct :)

5 0

3 years ago

Paul has $78 in the bank and saves $30 each week. What is the initial value? Be sure to use negative signs if needed.

marin [14]

Answer:

The initial value is $78

Step-by-step explanation:

Given

$Base\ Amount = \$78$

$Additional = \$30$ (weekly)

Required

Determine the initial value

The initial value is the amount he has in its bank account before making his weekly savings.

From the question, we have that his initial balance is $78.

Hence, the initial value is $78

However, his weekly balance can be expressed as:

$Balance = Base\ Amount + Additional * number\ of weeks$

Represent number of weeks with x; So, we have:

$Balance = 78 + 30 * x$

$Balance = 78 + 30 x$

6 0

2 years ago

Find the mistake in the problem. tell what is is.<br>6th grade math

nirvana33 [79]

He / she didn’t drop down the 2 after subtracting 19 from 242, instead he / she dropped down a 0.

7 0

3 years ago

Find the value of 5x-6 given that 2x-7=9

erik [133]

Answer:

Step-by-step explanation:

Given that

2x - 7 = 9 ← solve for x

Add 7 to both sides

2x = 16 ( divide both sides by 2 )

x = 8

Substitute x = 8 into 5x - 6

5x - 6 = (5 × 8) - 6 = 40 - 6 = 34

4 0

2 years ago