3 years ago

Solve for the value of y

Mathematics

2 answers:

dlinn [17]3 years ago

5 0

Y = 8 i hope you do good !

skad [1K]3 years ago

4 0

Answer:

y=8

Step-by-step explanation:

the sum of the three angles is 180

57 + 90 + 5y-7 = 180

5y + 140 = 180

5y = 40

y = 8

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Nesterboy [21]

Answer:

1. 110

2. 84

Step-by-step explanation:

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2 years ago

Given that f(x) = x2 – 3x – 28 and g(x) = x - 7, find

gregori [183]

Answer:

$(f-g)(x)=x^2-4x-21$

Step-by-step explanation:

We are given the two functions:

$f(x)=x^2-3x-28\text{ and } g(x)=x-7$

And we want to find:

$(f-g)(x)$

This is equivalent to:

$=f(x)-g(x)$

Substitute:

$=(x^2-3x-28)-(x-7)$

Distribute:

$=x^2-3x-28-x+7$

Rearrange:

$=(x^2)+(-3x-x)+(-28+7)$

Hence:

$(f-g)(x)=x^2-4x-21$

6 0

2 years ago

I need h3lpppppppppppppppppppppppppppppppppp

Amanda [17]

The answer is E because during 5:00-9:00 the temperature didn’t change

7 0

3 years ago

This rectangle represents the base of a rectangular prism. The height of the rectangular prism is 56 m.

elena-14-01-66 [18.8K]

Answer:

1,960

Step-by-step explanation:

35 times 56 = 1,960

35 is the base, to get the base you do length times width.

the height is 56. To get the volume do base (or length times width) times hight.

Hope that helps!

5 0

2 years ago

Read 2 more answers

Gemma recently rode her bicycle to visit her friend who lives 6 miles away. On her way there, her average speed was 16 miles per

DochEvi [55]

first speed --- x mph

return speed -- x+16 mph

6/x + 6/(x+16) = 1

times each term by x(x+16)

6(x+16) + 6x = x(x+16)

x^2 + 4x - 96 = 0

(x-8)(x+12) = 0

x = 8 or x is a negative

her first speed was 8 mph

her return speed was 24 mph

check:

6/8 + 6/24 = 1 , that's good!

8 0

2 years ago