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2 years ago

Can someone please answer this, ill give you brainliest Would be very appreciated.

Mathematics

2 answers:

Genrish500 [490]2 years ago

7 0

Answer:

x-intercept: (4, 0), (-5, 0)

y-intercept: (0, -20)

Explanation:

x² + x - 20

x² + 5x -4x -20

x(x+ 5) -4(x +5)

(x-4)(x + 5)

Their x-intercept: (at x intercept, y will be 0)

(x-4)(x + 5) = 0

x = 4, x = -5

Their y intercept: (at y intercept, x will be 0)

y = (x-4)(x + 5)

y = (0-4)(0 + 5)

y = -20

sesenic [268]2 years ago

7 0

Answer:

x-intercepts : (4, 0) and (-5, 0)
y-intercept : (0, -20)

Step-by-step explanation:

Finding x-intercept(s)

The x-intercept's y-coordinate will be 0
⇒ 0 = (x - 4)(x + 5)
⇒ x = 4 and x = -5
The x-intercepts are : (4, 0) and (-5, 0)

Finding y-intercept

The y-intercept's x-coordinate will be 0
⇒ y = 0² + 0 - 20
⇒ y = -20
The y-intercept will be (0, -20)

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A rectangle has a height of 4 and a width of 2x^2- 2.

Mekhanik [1.2K]

Answer:

2 − 4

Step-by-step explanation:

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2 years ago

Christopher plays quarterback for a

jeka94

Answer:

70%

Step-by-step explanation:

$42\div60$

Calculate

$\frac{42}{60}$

Cross out the common factor

$\frac{7}{10}$

Multiply a number to both the numerator and the denominator

$\frac{7}{10}\times\frac{10}{10}$

Write as a single fraction

$\frac{7\times10}{10\times10}$

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$\frac{70}{100}$

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I hope this helps you

:)

8 0

1 year ago

The additional cost per month of a sunroof, spoiler and stereo is represented by three consecutive even integers, respectfully.

lesya [120]

Answer:

Step-by-step explanation:

First of all, I think it was "respectively", not "respecfully", =))). A noticeable point.

From the problem, three item's costs are represented by three consecutive even integer.

Thus, we can call cost of spoiler is x, sunroof is x-2, stereo is x + 2. It is conditioned that x is an even number.

Since the sum of the three is 48, we have

(x-2) + x + (x+2) = 48

x+x+x -2 +2 = 48

3x =48

x=16

So the spoiler is 16; thus, the sunroof is 14 and the stereo is 18

3 0

3 years ago

CHALLENGE PROBLEM Danny's Department Store advertises savings of

Oksanka [162]

Discount are used to reduce the costs of items

The percent paid to determine the advertisement is incorrect

<h3>How to determine the correct percentage</h3>

The initial prices are given as: $44.00 to $152.00

And the discount is: 45% to 51%

At a discount of 45%, the price of the items would be:

$Price = \$44.00 * (1 - 45\%)$

$Price = \$24.2$

$Price_2 = \$152.00 * (1 - 45\%)$

$Price_2 = \$83.6$

At a discount of 51%, the price of the items would be:

$Price = \$44.00 * (1 - 51\%)$

$Price = \$21.56$

$Price_2 = \$152.00 * (1 - 51\%)$

$Price_2 = \$74.48$

The calculates prices show that the percent paid to determine the advertisement is incorrect