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laila [671]
3 years ago
9

What is the area of the shape below? Hint: use the formula: A =1/2 h (b1 + b2) *

Mathematics
1 answer:
Inga [223]3 years ago
5 0

Answer:

B. 172.5 yd squared

Step-by-step explanation:

FIrst, we must find half of the height, which is 15/2 or 7.5.

Next we have to multiply 7.5 times (15+8) which is B.

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Which rules of exponents will be used to evaluate this expression? Check all that apply.
tatyana61 [14]

Answer:

Actual correct answer (I checked because the first answer was wrong)

Step-by-step explanation:

x product of powers

quotient of powers

power of a power

x power of a product

negative exponent

x zero exponent

I got this right the second time.

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3 years ago
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The definition of parallel lines requires the undefined terms line and plane, while the definition of perpendicular lines requir
Tomtit [17]
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4 0
3 years ago
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What is the value of x? <br><br><br>Enter your answer in the box. <br><br><br>x =
Triss [41]

Answer:

x = 4.1

Step-by-step explanation:

6x-3 + 3x+6 + 5x = 60

14x + 3 = 60

14x = 60 - 3

14x = 57

x = 57/14

x = 4.1

4 0
3 years ago
Find an equation of the tangent line to the curve <br> xey + yex = 5
Harman [31]
I got:

<span>y′=(−y<span>e^−x</span>−e^y)/xe^y+e^x</span>
then plugged in x and y and got slope of (-5-e^5)
and ended with equation of y=(-5-e^5)x+5

I'm not sure with my solution though i hope this might help you.

I hope my answer has come to your help. Have a nice day ahead and may God bless you always!
8 0
3 years ago
Please I need help does anyone know a hack for khan academy
Evgesh-ka [11]

Answer:

Answer:

0.3643

Step-by-step explanation:

Standard Form and Scientific Notation

What is standard form of numbers?

Standard form is the normal way of writing numbers no matter how big or small the number is.

Examples:

15,000,000

0.0000000678

What is scientific notation?

Scientific notation is a different way of expressing numbers. It is a short way of expressing very big numbers or very small numbers. It is also known as exponential form. Scientific notation is written as the product of a number and a power of 10.

Examples:

1.3 × 10⁶

34.5 × 10^⁻9

Going back to the question above, we need to convert the given scientific notation to its standard form.

Converting of Scientific Notation to Standard Form

To convert a number from scientific notation to standard form, move the decimal point.

The exponent tells the direction and the number of times we need to move the decimal point.

The positive exponent indicates a large number so we need to move the decimal point to the right.

The negative exponent indicates a small number so we need to move the decimal point to the left.

Do not write the power of 10 anymore.

Solution:

Now, let us convert 3.643 x 10^-1 in standard form.

The exponent is negative 1 so we will move the decimal point to the left once.

3.643 = 0.3643

7 0
2 years ago
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