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3 years ago

Need help w algebra 2!!

Mathematics

1 answer:

Harlamova29_29 [7]3 years ago

3 0

For number 6, use the equation S= a1/1-r which is basically s=210/1-(1/10). The answer is 233

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Solve the following new equation

mixer [17]

Answer:

<h3>x = 1.54 or x = - 4.54 to 2 decimal places</h3>

Step-by-step explanation:

x² + 3x - 7 = 0

Using the quadratic formula

a = 1 b = 3 c = - 7

$x = \frac{3 ± \sqrt{ {3}^{2} - 4(1)( - 7) } }{2(1)} \\ x = \frac{ - 3± \sqrt{9 + 28} }{2} \\ \\ x = \frac{ -3 ± \sqrt{37} }{2} \\ \\ x = \frac{ - 3 + \sqrt{37} }{2} \: \: \: \: \: or \: \: \: x = \frac{ - 3 - \sqrt{37} }{2} \\ \\ x = 1.54 \: \: \: or \: \: x = - 4.54$

Hope this helps you

7 0

2 years ago

If the total area of a picture measuring 10 inches by 12 inches plus a matting of uniform width surrounding the picture is 224 s

ELEN [110]

Let
x-----------> <span>uniform width surrounding the picture

we know that
(10+2x)*(12+2x)=224-----> 120+20x+24x+4x</span>²=224
4x²+44x+120-224=0
4x²+44x-104=0

using a graph tool-----> to resolve the second order equation
see the attached figure

the solution is
x=2 in

the answer is
2 inches

4 0

2 years ago

Find the area of the following figure. Explain or show how you found your answer.

zaharov [31]

Answer:No clue

Step-by-step explanation:

3 0

2 years ago

Evaluate the expression for the given value of the variable.

Stels [109]

Answer:

4 * (3 + 5)

4 * 8

Step-by-step explanation:

5 0

2 years ago

Your family is traveling 345 miles to an amusement park. You have already traveled 131 miles. How many more miles must you trave

Svetllana [295]

Answer:

214 miles

Step-by-step explanation:

To find the difference between miles already traveled and total miles you need to travel, you subtract ...

345 miles - 131 miles = 214 miles

You must travel 214 more miles to complete your 345 mile journey.

7 0

2 years ago