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2 years ago

The triangles below are congruent and the corresponding parts are marked

Mathematics

1 answer:

Ilia_Sergeevich [38]2 years ago

6 0

Answer:

Step-by-step explanation:

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HELP DUE IN 20 MINS! Leave answers as simplified fractions if necessary. m =??

mezya [45]

The answer is M = -24

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3 years ago

Read 2 more answers

As John walks 16 ft towards a chimney, the angle of elevation from his eye to the top of the chimney changes from 30° to 45°. Id

levacccp [35]

ANSWER

The height is $22ft$

EXPLANATION

Let the height of the chimney be x.

$\tan(45 \degree) = \frac{x}{y}$

$1 = \frac{x}{y}$

$x = y$

$\tan(30 \degree) = \frac{x}{16+ y}$

$\frac{ \sqrt{3} }{3} = \frac{x}{16 + y}$

Cross multiply

$\sqrt{3} (16 + y) = 3x$

$16 \sqrt{3} + y \sqrt{3} = 3x$

Put

$y = x$

into the equation;

$16 \sqrt{3} + x \sqrt{3} = 3x$

Group similar terms:

$16 \sqrt{3}= 3x - x \sqrt{3}$

$16 \sqrt{3}= (3 - \sqrt{3})x$

$\frac{16 \sqrt{3} }{3 - \sqrt{3} } = x$

$x=21.856$

The height of the chimney to the nearest feet is 22

6 0

3 years ago

6) Work out 4 x 10-5 x 6 x 1012 Give your answer in standard form.

julia-pushkina [17]

Answer:

4 × 5 × 6 × 1012 = 121440

= 1.2 × 10⁵

5 0

3 years ago

Original grade: 80 New grade: 100 Find the percent of increase. 107

Kipish [7]

Step-by-step explanation:

Based on the given conditions,

Formulate:(100-80)÷80

Calculate the sum or difference:20/80

Cross out the common factor:1/4

Multiply a number to both the numerator and the denominator:1/4×25/25

Write as a single fraction :25/4×25

Calculate the product or quotient :25/100

Rewrite a fraction with denominator equals 100 to a percentage:25%

Answer : 25%

5 0

3 years ago

Solve these problems for me and i will do a 100 point giveway

matrenka [14]

Answer:

1st page is 2

2nd page is -2

Step-by-step explanation:

3 x -4 = -12

-12 / -2 = 2

-6 / 3 = -2

negative time a negative is a positive and a positive times a negative is a positive

5 0

3 years ago