All categories

2 years ago

PLEASE HELP ASAP!!!

1 answer:

6 0

2x^2 - 7x - 6 = 0

$x1 = \frac{- b + \sqrt{ {b}^{2} - 4ac }}{2a}$
$x2 = \frac{- b - \sqrt{ {b}^{2} - 4ac }}{2a}$
where a=2
where b=-7
where c=-6

solve for x1 and x2

x1=4.21
x2=-0.71

You might be interested in

What is the simplified version of 4+5y-6y+y

oee [108]

Answer:

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

At a museum shop, Alysa bought two books for $28.50 and some cards for $3.25 each. Her total purchase came to $44.75. How many c

PSYCHO15rus [73]

Answer:

Step-by-step explanation:

44.75 - 28.50 = 16.25 so 16.25 divided by 3.25 equals 5 and 5 times 3.25 equals 16.25 and 16.25 plus 28.50 equals 44.75 so she bought 5 cards.

7 0

2 years ago

For the rectangle shown, which equation can be used to find the value of x?

sweet-ann [11.9K]

Answer:

The 4th one: 3^2 + 13^2 = x^2

Step-by-step explanation:

The <u>pythagorean theorem</u> is a^2 + b^2 = c^2. In this case 3 is a, 13 is b, and x is c.

happy to help

7 0

2 years ago

Read 2 more answers

Use the given values of n and p to find the minimum usual value μ − 2σ and the

aivan3 [116]

The answer to this question is 39.28; 65.12

7 0

2 years ago

Help me with #22 Please i need steps too

VladimirAG [237]

Answer:

$\frac{1}{2} (8)(x+4)=3(x+6)\\x=2$

Step-by-step explanation:

$\frac{1}{2} bh=bh\\\\\frac{1}{2}(8)(x+4)=3(x+6)\\4(x+4)=3x+18\\4x+16=3x+18\\4x=3x+2\\x=2$

1. set the equation for the area of each shape equal to each other

2. simplify each side until you get $4x+16=3x+18$

3. subtract 16 from both sides which will give you $4x=3x+2$

4. subtract 3x from both sides which will give you the value of x. $x=2$

5. check that $x=2$ is correct by plugging it into the equations

triangle:

$area=\frac{1}{2} (8)(2+4)\\area=4(6)\\area=24$

rectangle:

$area=3(2+6)\\area=3(8)\\area=24$

the areas are the same

4 0

2 years ago