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3 years ago

M<2=34 find m<4 and explain how you know

Mathematics

1 answer:

Naily [24]3 years ago

6 0

Angle 4 equals 34 degrees since angle 2 and 4 are opposite angles and opposite angles are congruent

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Which are the solutions of x2 = –7x – 8?

vovangra [49]

Answer:

The solutions are:

$x_1=\frac{-7+\sqrt{17}}{2}$ $x_2=\frac{-7-\sqrt{17}}{2}$

Step-by-step explanation:

We have the following quadratic equation

$x^2 = -7x - 8$

We can rewrite the equation as follows

$x^2+7x + 8=0$

Now we use the quadratic formula to solve the equation

For an equation of the form $ax ^ 2 + bx + c = 0$ the quadratic formula is:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

In this case:

$a=1,\ b=7,\ c=8$

Then:

$x=\frac{-7\±\sqrt{7^2-4(1)(8)}}{2(1)}$

$x=\frac{-7\±\sqrt{49-32}}{2}$

$x=\frac{-7\±\sqrt{17}}{2}$

$x_1=\frac{-7+\sqrt{17}}{2}$

$x_2=\frac{-7-\sqrt{17}}{2}$

7 0

3 years ago

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Anyone know what 422,391÷28=

saul85 [17]

15085.3929
Explanation
Use a calculator

5 0

2 years ago

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help pls The circumference of the hub cap of a tire is 80.1 centimeters. Find the area of this hub cap. Use 3.14 for pi. Use pen

Liula [17]

Answer: The area is 510.25 cm². If the circumference of the cap were smaller then the area would be smaller as well

Step-by-step explanation:

First, you must find the radius

80.1 ÷ 3.14 = 25.5

25.5 ÷ 2 = 12.75 <---- radius

Then from that, you find the area

A=πr²

12.75² = 162.5

162.5 × 3.24 = 510.25

Hope this was helpful!

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2 years ago

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0.54 can it be written as a fraction? and also dose it repeat decimal of care on repeats numbers.

Ostrovityanka [42]

0.54 = fiftyfour hundredths = 54/100

8 0

3 years ago

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I need help with now please help

Zinaida [17]

I am pretty sure it is 120 or 30

6 0

3 years ago