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4 years ago

Find the angle measure that makes the statement true. Sin 25° = Cos ____ °

Mathematics

2 answers:

svetoff [14.1K]4 years ago

8 0

Answer:

sin 25° = cos 65°

Step-by-step explanation:

We have trigonometric result

sin θ = cos (90 -θ)

Here we asked to convert Sin 25° in to cosine.

So,

sin 25° = cos (90 -25) = cos 65°

sin 25° = cos 65°

Mashcka [7]4 years ago

3 0

65.

You simply have to put cos-1(sin(25))

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kherson [118]

Answer:

Step-by-step explanation: 36 divided by 4 is 9.

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3 years ago

The system of equations is graphed on the coordinate plane.

Zepler [3.9K]

Answer:

(-1,-2)

Step-by-step explanation:

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4 years ago

(-3, 6) & m = -¹/2 what’s this equation in point slope form

Gre4nikov [31]

The equation of the line in point-slope form is y - 6 = (-1/2)(x - (-3)) which can be simplified as x + 2y = 9.

The equation of a line that has a slope m, and passes through the point (x₁, y₁) is given by the point-slope form of a line, which can be shown as:

(y - y₁) = m(x - x₁).

In the question, we are asked to find the equation of the line in point-slope form, that passes through the point (-3, 6) and has a slope m = -1/2.

We know that the equation of a line that has a slope m, and passes through the point (x₁, y₁) is given by the point-slope form of a line, which can be shown as:

(y - y₁) = m(x - x₁).

Taking (x₁, y₁) as (-3, 6) and m = -1/2, in the point-slope form, we get the equation of the line as;

y - 6 = (-1/2)(x - (-3)).

This can be simplified as:

2y - 12 = - x - 3,

or, x + 2y = 9.

Thus, the equation of the line in point-slope form is y - 6 = (-1/2)(x - (-3)) which can be simplified as x + 2y = 9.

Learn more about the point-slope form at

brainly.com/question/11624671

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4 0

1 year ago

To the nearest tenth of a precent, 78 is what precent of 82

forsale [732]

Answer:

95.1

Step-By-Step Explanation

78:82*100 =

(78*100):82 =

7800:82 = 95.12

Now we have: 78 is what percent of 82 = 95.12

Question: 78 is what percent of 82?

Percentage solution with steps:

Step 1: We make the assumption that 82 is 100% since it is our output value.

Step 2: We next represent the value we seek with x.

Step 3: From step 1, it follows that 100%=82

Step 4: In the same vein, x%=78

Step 5: This gives us a pair of simple equations:

$100\%=82(1)

$x\%=78(2)

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS

(left hand side) of both equations have the same unit (%); we have

100% over x% = 82 over 78

Step 7: Taking the inverse (or reciprocal) of both sides yield

x% over 100% = 78 over 82

x = 95.12%

Therefore, 78 is 95.12% of 82

I only 1 more Brainliest to get to the next level so getting one would be lovely

6 0

3 years ago

Solve the equation. 78 = -2(m + 3) + m Question 11 options: –42 –28 –84 –72

alexandr1967 [171]

Before we begin, note the following:
+ve * +ve = +ve
-ve * -ve = +ve
+ve * -ve = -ve
-ve * +ve = -ve

Now, for the given question:
The given equation is:
78 = -2(m+3) + m

To solve for m, we need to isolate m on one side of the equation and compute its value as follows:
78 = -2(m+3) + m
78 = -2m - 6 + m
m-2m = 78+6
-m = 84
m = 84/-1
m = -84

7 0

3 years ago

Read 2 more answers