2 years ago

Complete the statement using always, sometimes, or never.

Mathematics

1 answer:

Fynjy0 [20]2 years ago

5 0

I believe that, "A quadrilateral is sometimes a trapezoid”.

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19. A quadratic equation is shown below.

victus00 [196]

Answer:

$\{\sqrt b, -\sqrt b\}$

Step-by-step explanation:

Given

$a^2 - b = 0$

Required

Determine the solution

Since b is a perfect square, the equation can be expressed as:

$a^2 - (\sqrt b)^2 = 0$

Apply difference of two squares:

$(a - \sqrt b)(a + \sqrt b) = 0$

Split:

$(a - \sqrt b)= 0 \ or\ (a + \sqrt b) = 0$

Remove brackets:

$a - \sqrt b= 0 \ or\ a + \sqrt b = 0$

Make a the subject in both equations

$a =\sqrt b \ or\ a =-\sqrt b$

The solution can be represented as:

$\{\sqrt b, -\sqrt b\}$

6 0

2 years ago

X+8=17 what is the value of x makes the sentece true

melisa1 [442]

Answer:

x = 9

Step-by-step explanation:

Step 1: Write equation

x + 8 = 17

Step 2: Solve for <em>x</em>

Subtract 8 on both sides: x = 9

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

9 + 8 = 17

17 = 17

7 0

3 years ago

Which angle measures of 45°

ludmilkaskok [199]

Answer:

first

Step-by-step explanation:

half of right angle

5 0

2 years ago

Help help pleaseeeeeeeeeee

kaheart [24]

18 should be correct

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2 years ago

Family passes to the amusement park cost $54 each which expression can be used to find the cost in dollars of eight families pas

Lelu [443]

54 x 8 is an expression you can use to find the cost of eight passes.

7 0

3 years ago