3 years ago

Which of the following have both 2 and -5 as solutions.

2 answers:

5 0

$x_1=2\ \ \ and\ \ \ x_2=-5\\\\ \Rightarrow\ \ \ (x-x_1)(x-x_2)=(x-2)(x+5)=x^2+5x-2x-10=\\\\.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ =x^2+3x-10\ \ \ \Rightarrow\ \ \ Ans.\ a.$

Stella [2.4K]3 years ago

3 0

$x_1=2;\ x_2=-5\\\\(x-2)(x-(-5))=(x-2)(x+5)=x^2+5x-2x-10=x^2+3x-10\\\\Answer:a.$

You might be interested in

Find the area of a regular pentagon with side equal to 3 and apothem equal to K

viva [34]

a regular polygon has all equal sides.

a PENTA=5, pentagon has 5 sides, so a regular pentagon has 5 equal sides.

$\bf \textit{area of a polygon}\\\\ A=\cfrac{1}{2}ap~~ \begin{cases} a=apothem\\ p=perimeter\\[-0.5em] \hrulefill\\ a=K\\ p=\stackrel{3+3+3+3+3}{15} \end{cases}\implies A=\cfrac{1}{2}K15\implies A=\cfrac{15}{2}K$

7 0

3 years ago

Read 2 more answers

What was the approximate percent decrease in the price of her groceries due to the coupons?

vovangra [49]

Answer:

The approximate percent would be 25%

Step-by-step explanation:

3 0

2 years ago

Can someone please help with this i don’t know that answer and I want to pass

Nataliya [291]

¹¹/48 of the full cup

Step-by-step explanation:

We add the two fraction first to determine the total ratio

¹/4 + ²/3 = ¹¹/12

She uses ¼ cup grape juice for ¹¹/12 cup full of diluted grape juice

Therefore;

¼ : ¹¹/12

How How much grape juice does Sarah use for each full cup of water, i.e ¹²/12

? (x) : ¹²/12

We cross multiply the ratios;

¹²/12 * ¼ = ¹¹/12 * x

³/12 = ¹¹/12 x

³/12 * ¹²/11 = x

¹¹/48 = x

5 0

2 years ago

Reflections preserve length and size. Give a quality the a reflection does not preserve.

Lemur [1.5K]

The answer is b.) Orientation

3 0

2 years ago

Read 2 more answers

4x-5.2y + 6y + 7.9x - 8x

Ipatiy [6.2K]

Answer:

3.9x + 0.8y

Step-by-step explanation:

this is your answer

5 0

2 years ago