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2 years ago

100 POINTS!!!!!!!

Mathematics

1 answer:

Fed [463]2 years ago

5 0

Answer:

a,b,c

Step-by-step explanation:

divide first

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Help Me Figure Out With This Question Please

adoni [48]

Answer:

Step-by-step explanation:

Since you know the angle is a right angle, you can say that the two equations equal 90. A right angle is 90 degrees

3x+40+4x-6=90

Then Simplify

7x+34=90

Then Subtract:

7x=56

Then Divide:

x= 8

After, plug x into the angle equations

1. 3(8)+40= 64

2.4(8)-6= 26

The angles are 64 and 26

6 0

2 years ago

Read 2 more answers

1+secA/sec A = sin^2 A / 1-cos A

Fofino [41]

Answer: see proof below

Step-by-step explanation:

$\dfrac{1+\sec A}{\sec A}=\dfrac{\sin^2 A}{1-\cos A}$

Use the following Identities:

sec Ф = 1/cos Ф

cos² Ф + sin² Ф = 1

Proof LHS → RHS

$\text{LHS:}\qquad \qquad \dfrac{1+\sec A}{\sec A}$

$\text{Identity:}\qquad \qquad \dfrac{1+\frac{1}{\cos A}}{\frac{1}{\cos A}}$

$\text{Simplify:}\qquad \qquad \dfrac{\frac{\cos A+1}{\cos A}}{\frac{1}{\cos A}}\\\\\\.\qquad \qquad \qquad =\dfrac{1+\cos A}{1}$

$\text{Multiply:}\qquad \qquad \dfrac{1+\cos A}{1}\cdot \bigg(\dfrac{1-\cos A}{1-\cos A}\bigg)\\\\\\.\qquad \qquad \qquad =\dfrac{1-\cos^2 A}{1-\cos A}$

$\text{Identity:}\qquad \qquad \dfrac{\sin^2 A}{1-\cos A}$

$\text{LHS = RHS:}\quad \dfrac{\sin^2 A}{1-\cos A}=\dfrac{\sin^2 A}{1-\cos A}\quad \checkmark$

3 0

3 years ago

A rectangular plot of land has an area 9/10 square mile.The length is 3/2miles whats the width

Georgia [21]

A = L * W
(9/10) = (3/2) * W
Divide both sides (3/2)
(9/10) / (3/2) = W
(9/10) * (2/3) = W
18/30 = W
6/10 = W
W = 3/5 mile

6 0

3 years ago

Read 2 more answers

Given that x = 7.3 m and θ = 52°, work out AB rounded to 3 SF.

trapecia [35]

Answer:

223hjvfcnv5ctdydxrxr hgho8

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2 years ago

D) xºy - 64y4 please solve this question First one brainliest

nexus9112 [7]

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2 years ago