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RoseWind [281]
2 years ago
12

Jamal drew a picture.

Mathematics
1 answer:
inessss [21]2 years ago
7 0

area of rectangle = l×b

So, area of drawing = l×b = 8cm×4cm = 32cm²

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What is the leading coefficient of the polynomial function? <br><br> y=-x^4+4x^2
attashe74 [19]
<h3>Answer:  -1</h3>

Explanation:

The given equation is the same as y = -1x^4+4x^2

The leading term is the term with the largest exponent, so it's -1x^4

The leading coefficient is the coefficient of the leading term.

In short, we circle the first coefficient we see. This is assuming that the polynomial is in standard form where the exponents decrease when going from left to right.

6 0
1 year ago
How to solve y = 8x - 9
Alex Ar [27]

Answer:

-72

Step-by-step explanation:

The answer is -72 because 8 * -9 = -72, I can't explain it to you any other way ;-;

6 0
2 years ago
Read 2 more answers
What are the values of a and b?
ivann1987 [24]

Answer:

<h2>a = 400/21, b = 580/21</h2>

Step-by-step explanation:

Small triangles are similar. Therefore, the sides are proportional

\dfrac{a}{20}=\dfrac{20}{21}               <em>cross multiply</em>

21a=(20)(20)       <em>divide both sides by 21</em>

a=\dfrac{400}{21}

For b, we can use the Pythagorean theorem:

b^2=\left(\dfrac{400}{21}\right)^2+20^2\\\\b^2=\dfrac{160000}{441}+400\\\\b^2=\dfrac{160000}{441}+\dfrac{176400}{441}\\\\b^2=\dfrac{336400}{441}\to b=\sqrt{\dfrac{336400}{441}}\\\\b=\dfrac{\sqrt{336400}}{\sqrt{441}}\\\\b=\dfrac{580}{21}

3 0
3 years ago
PLease evaluate this math problem for me!!
umka2103 [35]

8(1/4)

=(8/1)

=(8)(1)/(1)(4)

=8/4

=2

3 0
3 years ago
Please help me with a) and b) I’m very lost, please explain and how you got your answer
Karo-lina-s [1.5K]

To solve A, complete the square for both variables.

The center is (6,4)

8 0
3 years ago
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