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2 years ago

Each of the interior angles in a polygon are equal in measure

Mathematics

1 answer:

Bond [772]2 years ago

5 0

Answer:

No, only sometimes.

Step-by-step explanation:

Only a regular polygon has interior angles that are all congruent.

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2 Points

SOVA2 [1]

distributive property

-4x - y + 2x - 6y

Combine like terms

-2x - 7y

6 0

2 years ago

Read 2 more answers

Which of the following numbers is not written in scientific notation?

Sonja [21]

Answer A

Step-by-step explanation:

Because there is a zero at the begining.

8 0

2 years ago

Using the quadratic formula to solve 4x2 – 3x + 9 = 2x + 1, what are the values of x?

yaroslaw [1]

Answer:

The value of x is:

$x=\dfrac{5\pm \sqrt{103}i}{8}$

Step-by-step explanation:

we have to use the quadratic formula to solve for x.

The equation is given as:

$4x^2-3x+9=2x+1$

which could also be written as:

$4x^2-3x+9-2x-1=0\\\\4x^2-3x-2x+9-1=0\\\\\\4x^2-5x+8=0$

The quadratic formula for the quadratic equation of the type:

$ax^2+bx+c=0$ is given as:

$x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

Here we have:

a=4, b=-5 and c=8.

Hence, by the quadratic formula we have:

$x=\dfrac{-(-5)\pm \sqrt{(-5)^2-4\times 8\times 4}}{2\times 4}\\\\x=\dfrac{5\pm \sqrt{25-128}}{8}\\\\\\x=\dfrac{5\pm \sqrt{103}i}{8}$

Hence, the value of x is:

$x=\dfrac{5\pm \sqrt{103}i}{8}$

8 0

2 years ago

Read 2 more answers

Please help me 13-18. I have MS and can’t focus on these problems and missed a lot of the lessons learning this.

olchik [2.2K]

Answer:

Please, see the attached files.

Step-by-step explanation:

Please, see the attached files.

Thanks.

4 0

2 years ago

Can someone help me figure out the answer?

Marina86 [1]

Answer:

f(t) = 5×0.87^t

Step-by-step explanation:

The general form for an exponential function described in this fashion is ...

... f(t) = (starting value) × (1 + (percent change))^t

Here, the "percent change" is -13%, or -0.13.

Then the value (1 + percent change) is (1 + (-0.13)) = 0.87. Putting this and the starting value into the form above, we have ...

... f(t) = 5 × 0.87^t

3 0

2 years ago