MATHEMATICS MIDDLE SCHOOL

Find the value for θ.sinθ=cos(θ−18.5)
Question 6 options:

35.75°

71.5°

54.25°

161.5°

Answers

Answer 1

Answer:

Answer:

$\theta=54.25\°$

Step-by-step explanation:

we know that

When the sine of angle X is equal to the cosine of angle Y, then angle X and angle Y are complementary angles

$X+Y=90\°$ ----> equation A

In this problem

$X=\theta$

$Y=(\theta-18.5)$

substitute in the equation A

$\theta\°+(\theta-18.5)\°=90\°$

$2\theta=90+18.5$

$2\theta=108.5$

$\theta=54.25\°$

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Sixty five percent of 8th grade class is selling magazines for the class fundraiser. If 112 students are selling magazines how many students are in the 8th grade

Answers

Answer:seven hundred thirty two

Completing the square x^2-14x+49=0

Answers

Answer:

(x -7)²

x = 7

Step-by-step explanation:

Given the quadratic function (polynomial):

x² - 14x + 49 = 0

The first term (x²) and the last term (49) are both perfect squares and the second term is the sum of the product of these two terms (-7 + -7 = -14):

(x - 7)(x - 7) = (x-7)²

Estimate the quotient 67 divide 4

Answers

4 goes into 67 16 times when whole, with a remainder of 3.

That 3 makes the quotient 16.75
If rounding to the next whole number, 17.
If rounding to the ones place, 16.8

:D

pamela wants to buy a new mercedes.The mercedes wheel has a radius of 35', what is the area of the mercedes wheel?

Answers

pamela wants to buy a new mercedes.The mercedes wheel has a radius of 35', what is the area of the mercedes wheel? the answer would be 3848.45

What is? 3.44 rounded to 1 decimal place
12.09 1 decimal place
18.39 1 decimal place
44.347 1 decimal place
82.383 1 decimal place
49.2532 1 decimal place

Answers

3.4, 13, 18.4, 44.3, 82.4, 49.3 :) hope this helped

3.44 = 3.4 since 4 in the hundredths is nearer to 0
12.09 = 12.1 since 9 is near the next digit
Do the same with these:
18.39 = 18.4
44.347 = 44.3
82.383 = 82.4
49.2532 = 49.3

Passes through ( -4, -5), slope = 3/4