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11Alexandr11 [23.1K]
3 years ago
11

Can somebody help me. Will Mark brainliest.

Mathematics
1 answer:
cricket20 [7]3 years ago
4 0

Answer:

around 81.2 degrees

Step-by-step explanation:

use inverse tangent

remeber tan = O/H

divide it first

84/13

6.461538461538462

then use invese tan(tanx^{-1})

81.20258929000894

or around 81.2 degrees

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PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS
worty [1.4K]

Answer:

(0, -3)

explanation:

  • original coordinates of C: (0, -7)

If reflected over y axis, there will be additive inverse in x unit

use the formula:  (x,y) → (−x, y)

  • new coordinates: (0, -7)

Then if translated vertically, there will be change in y axis:

(0, -7+4) → (0, -3)

5 0
2 years ago
Solve the following quadratic equation for all values of x in simplest form.
NNADVOKAT [17]

Answer:

x = ± 1

Step-by-step explanation:

Given

3(x² - 4) + 7 = - 2 ( subtract 7 from both sides )

3(x² - 4) = - 9 ( divide both sides by 3 )

x² - 4 = - 3 ( add 4 to both sides )

x² = 1 ( take the square root of both sides )

x² = ± \sqrt{1} = ± 1

Thus

x = - 1, x = 1

8 0
3 years ago
Use the graphing calculator to graph the system.
Gekata [30.6K]

The solutions to the system are -11.3 and 11.3.

The length of one leg of the sun shade is 11.3 feet.

Steps:

graph y=1/2 x^2

graph y=64

zoom out.

find the points of intersection.

done.

7 0
3 years ago
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The mass of an object
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2 years ago
Identify the domain of the following rational expression:
Zinaida [17]

The domain for the rational expression as given in the task content is; All real numbers except -5.

<h3>Domain of Rational functions</h3>

The domain of a rational function such as that given in the task content includes all possible values of the variable except that which renders the expression undefined.

On this note, the expression is undefined when, 3x + 15 = 0.

Hence, the domain is All real numbers except -5.

Read more on rational functions;

brainly.com/question/13763081

4 0
2 years ago
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