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3 years ago

Determine the y-intercept of the following parabola: y = (x - 3)(x + 7)

Mathematics

2 answers:

NARA [144]3 years ago

7 0

Answer:

Step-by-step explanation:

For any function, its y-intercept will be the y value when x = 0.

You can simply plug in 0 for x in the function:

y = (0-3)(0+7)

= (-3)(7)

= -21

Therefore, the y-intercept of this parabola is -21.

Fofino [41]3 years ago

4 0

Answer:

The y intercept is -21

Step-by-step explanation:

y = (x - 3)(x + 7)

To find the y intercept, set x =0 and solve for y

y = (0-3) (x+7)

y = -3*7

y = -21

The y intercept is -21

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If mBGC = 16x - 4 and mCGD = 2x + 13, find the value of x so that BGD is a right angle

Lelu [443]

Hi there! :)

Answer:

$\huge\boxed{x = 4.5}$

m∠BGC = 16x - 4

m∠CGD = 2x + 13

m∠BGC + m∠CGD sums up to 90°, therefore:

(16x - 4) + (2x + 13) = 90

Combine like terms and simplify:

16x + 2x - 4 + 13 = 90

18x - 4 + 13 = 90

18x + 9 = 90

18x = 81

18x/18 = 81/8

x = 4.5

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2 years ago

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Zolol [24]

Answer:

Step-by-step explanation:

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3 years ago

1. Split the biconditional into two conditionals: Zipzorps

bagirrra123 [75]

Answer:

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Converse: If Flygers are therapeutic, then ZipZorps are jumpy.

Step-by-step explanation:

ZipZorps are jumpy.

Flygers are therapeutic.

These are the 2 statements.

You have to have a true conditional and converse statement to create a biconditional statement.

8 0

3 years ago

Combine any like terms in the expression. If there are no like terms, rewrite the expression.

stich3 [128]

Answer:

40w^3

Step-by-step explanation:

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1 year ago

NYS COMMON CORE MATHEMATICS CURRICULUM Lesson 17 Date Name Lesson 17 Solutions Eric's father works two part-time jobs, onc in th

Law Incorporation [45]

Answer:

Eric's father work 5 hours each afternoon

Step-by-step explanation:

Let x be the no. of hours Eric's father work each afternoon

He works for hours in morning each day = 3

He works for total hours in morning in 5 days= $3 \times 5 = 15$

He works for total hours in afternoon in 5 days=5x

We are given that he works a total of 40 hours each 5-day workweek.

ATQ

15+5x=40

5x=25

x=5

Hence Eric's father work 5 hours each afternoon

8 0

2 years ago