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2 years ago

Someone please help me! Studying for finals and don’t understand how to complete problems like this! Thank you!

Mathematics

1 answer:

Drupady [299]2 years ago

6 0

Answer:

(d). $\frac{152}{377}$

Step-by-step explanation:

sin² β + cos² β = 1

cos (α + β) = cos α cos β - sin α sin β

cos α = √(1 - $\frac{400}{841}$ ) = 21 / 29

cos β = 12 / 13

sin β = √(1 - $\frac{144}{169}$ ) = 5 / 13

sin α = 20 / 29

cos (α + β) = $\frac{21}{29}$ × $\frac{12}{13}$ - $\frac{20}{29}$ × $\frac{5}{13}$ = $\frac{152}{377}$

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erastovalidia [21]

Answer:

5 1/5 miles

Step-by-step explanation:

Given that :

Library is located halfway between park and home ;

Distance between library and park = 1 3/10 miles

Hence, total distance between park and home :

1 3/10 + 1 3/10 = 2 6/10

The distance driven :

Home to park ; park back home

2 6/10 + 2 6/10 = 4 12/10

4 + 12/10 = 4 + 1 2/10

= 5 2/10

= 5 1/5 miles

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2 years ago

BRIANLIEST!!!BRAINLIEST!!!!BRAINLIEST!!!!BRAINLIEST!!!!

Irina18 [472]

Answer:

For the first one it would be A. x = -3, 4 because they where f(x) and g(x) intersect.

Step-by-step explanation:

For the second one it would be B. Fuction 1 has the larger maximum at (4,1) because the maximum point for Fuction 1 is at (4,1) becuase that the highest point/vertex it goes.

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2 years ago

An eagle perched 40 ft up in a tree looks down at a 35 degree angle(angle of depression) and spots a vole. How far is the vole f

maria [59]

Answer:

$X=49ft$

Step-by-step explanation:

From the question we are told that:

Height of Eagle $h=40ft$

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Generally the trigonometry equation for diagonal X is mathematically given by

$Cos\theta \textdegree=\frac{Adjacent}{Hypotenuse} }$

$Cos\theta \textdegree=\frac{h}{X} }$

$X=\frac{40}{Cos 35 } }$

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2 years ago

Write a point that is the same distance from (0,0) as (0,6)

Bess [88]

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2 years ago

WHOEVER SOLVES ALL OF THEM WILL BE MARKED BRAINLIEST

Alenkasestr [34]

Answer:

1. A(1;5), B(10;23), slope of 2

2. A(10;9), B(4;0), slope of 1.5

3. A(-35/4;6), B(9;-35/6), slope of -2/3

4. A(5;18), B(25,22), slope of 0.2

5. A(2/9;1/3), B(2/3,-1/3), slope of -1.5

Step-by-step explanation:

Substitute values with correct variable and slopemis coefficient of x when x and y-int. are on 1 side, y is on other side and has coefficient of 1. Hope it works!

4 0

2 years ago