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4 years ago

Which expressions are not polynomials?

Mathematics

1 answer:

Naddika [18.5K]4 years ago

8 0

Answer:

The middle two expressions shown are not polynomials

Step-by-step explanation:

Polynomial terms have positive integer exponents on any variables. A 2/3 power is not an integer exponent. Division by y is equivalent to an exponent of -1, which is not a positive integer.

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Draw two identical rectangle. Shade 1 seventh of one rectangle and 1 tenth of the other. Lavel the unit fractions. Use you recta

Bumek [7]

Answer:

1/7 is greater than 1/10 using coordinates and its area of the division concept.

Step-by-step explanation:

We have to draw two identical rectangles and have to shade them.

Here is the diagram attached with.<em> (With some approximation)</em>

We can see that $\frac{1}{7} > \frac{1}{10}$ .

Rectangles are identical.

When we look upon $\frac{1}{10}$ it can be observed that each division on the coordinate plane have 2 boxes only...

Where as $\frac{1}{7}$ fraction consists more than 2 boxes ..

So we can say that the area covered for each division in $\frac{1}{7}$ is more than that of $\frac{1}{10}$ .

Mathematical concept:

If the numerator are same then to compare fractions we look upon denominators values.

Greater the denominator lesser is the fraction values.

So,

Finally we can say that 1/7 is greater than 1/10 .

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3 years ago

A bakery sold 275 mocha cupcakes in a day, which was 55% of the total number of

Morgarella [4.7K]

Answer:

151 cupcakes

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Chance can wash the car in 2 hours, while Sandy can wash the same car in 4 hours. How many hours would it take for them to wash

san4es73 [151]

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3 years ago

Suppose theta= 11pi/12. How do you use the sum identity to find the exact value of sin theta?

SIZIF [17.4K]

The better way is, first we have to find the equivalent in degrees

$2\pi=360\º$

$\frac{11\pi}{12}=345\º$

now we can change this value to $-15\º$

how do we get an angle like this?!

$30\º-45\º=-15\º$

then

$sin(30\º-45\º)=sin(30\º)*cos(45\º)-sin(45\º)*cos(30\º)$

$\begin{Bmatrix}sin(30\º)&=&\frac{1}{2}\\\\sin(45\º)&=&cos(45\º)&=&\frac{\sqrt{2}}{2}}\end{matrix}\\\\cos(30\º)&=&\frac{\sqrt{3}}{2}\end{matrix}$

now we replace this values

$sin(-15\º)=\frac{1}{2}*\frac{\sqrt{2}}{2}-\frac{\sqrt{2}}{2}*\frac{\sqrt{3}}{2}$

$sin(-15\º)=\frac{\sqrt{2}}{4}-\frac{\sqrt{6}}{4}$

$\boxed{\boxed{sin(-15\º)=sin(345\º)=\frac{\sqrt{2}-\sqrt{6}}{4}}}$

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3 years ago

Let f(x) = 1/x. Find a number b so that the average rate of change of f on the interval

Bezzdna [24]

Answer:

huh try multiplying

Step-by-step explanation:

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4 years ago