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2 years ago

23 - 8x + 5x + 1 Plz help

Mathematics

2 answers:

klio [65]2 years ago

8 0

Answer:

-3x+24

Step-by-step explanation:

Arturiano [62]2 years ago

8 0

Answer:

Step-by-step explanation:

23-8x+5x+1=

We move all terms to the left:

23-8x+5x+1-()=0

We add all the numbers together, and all the variables

-3x=0

x=0/-3

x=0

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What is the total surface area

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We have two right triangles and three different rectangles.

The formula of an area of a right triangle:

$A_T=\dfrac{1}{2}l_1l_2$

l₁, l₂ - legs

We have l₁ = 20cm and l₂ = 21cm. Substitute:

$A_T=\dfrac{1}{2}(20)(21)=(10)(21)=210\ cm^2$

The formula of an area of a rectangle:

$A_R=lw$

l - length

w - width

We have:

rectangle #1: l = 22cm, w = 29cm

$A_{R1}=(22)(29)=638\ cm^2$

rectangle #2: l = 22cm, w = 21cm

$A_{R2}=(22)(21)=462\ cm^2$

rectangle #3: l = 22cm, w = 20cm

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The total Surface Area of the triangular prism:

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2 years ago

Simplify sin^2y/sec^2 y−1 to a single trigonometric function

liubo4ka [24]

Answer:

$\frac{ { \sin}^{2} y}{ { \sec}^{2}y - 1 } = { \cos }^{2} y$

Step-by-step explanation:

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Also , ${ \tan}^{2} y = \frac{ { \sin }^{2} y}{ { \cos }^{2}y }$

So ,

$\frac{ { \sin }^{2}y }{ { \sec }^{2}y - 1 } = \frac{ { \sin}^{2} y}{ { \tan }^{2} y} = \frac{ { \sin }^{2}y }{ \frac{ { \sin}^{2} y}{ { \cos}^{2}y } } = { \cos }^{2} y$

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2 years ago

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3 years ago

What is -2 = x/-4 + 9

svetlana [45]

<em>I would say that your answer is </em><em>44</em>

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3 years ago

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A and B are two cities.

Yuri [45]

<h2><u>Answer: </u></h2>

The bearing of B from A is 28 degrees, approximately

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Step-by-step explanation:

The bearing of B from A is 28 degrees, approximately

The bearing of A from B is 180+28=208 degrees, approximately.

The reason for approximation is from distortion of image.

See attached image to understand ohw the measurement has been obtained.

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