3 years ago

Which of the following phrases are inequalities?

Mathematics

1 answer:

Wewaii [24]3 years ago

6 0

Answer:

11 > (w- 4)

y < 3

5 + 9 < 5.9

So these are the phrases which are inequalities.

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How many oxygen atoms are in the product H2O+ CO2

Zielflug [23.3K]

For CO2 there is one atom of carbon and two atoms of oxygen. For H2O, there is one atom of oxygen and two atoms of hydrogen.

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2 years ago

The surface of a rectangular table has an area of 8 square feet and a perimeter of 12 feet. What are the dimensions of the table

nirvana33 [79]

Answer:

4 ft by 2 ft

Step-by-step explanation:

4*2=8

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3 years ago

Nagaraj has a party length sandwich that is 56 inches long and is to be cut into three pieces. The middle piece will be 6 inches

aliina [53]

X shortest piece
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X+8 longest piece
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3 years ago

Find a ·<br> b. |a| = 80, |b| = 50, the angle between a and b is 3π/4.

mart [117]

Answer:

$a\cdot b=-2000\sqrt{2}$

Step-by-step explanation:

Given information: |a| = 80, |b| = 50, the angle between a and b is 3π/4.

We need to find the dot product a · b.

The formula of dot product is

$a\cdot b=|a||b|\cos \theta$

where, θ is the angle between a and b.

Substitute the given values in the above formula.

$a\cdot b=(80)(50)\cos (\frac{3\pi}{4})$

$a\cdot b=4000\cos (\pi-\frac{\pi}{4})$

$a\cdot b=-4000\cos (\frac{\pi}{4})$ $[\because \cos (\pi-\theta)=-\cos \theta]$

$a\cdot b=-4000\frac{1}{\sqrt{2}}$

$a\cdot b=-\frac{4000}{\sqrt{2}}$

Rationalize the above equation.

$a\cdot b=-\frac{4000}{\sqrt{2}}\times \frac{\sqrt{2}}{\sqrt{2}}$

$a\cdot b=-\frac{4000\sqrt{2}}{2}$

$a\cdot b=-2000\sqrt{2}$

Therefore, the value of a · b is $a\cdot b=-2000\sqrt{2}$ .

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2 years ago

Read 2 more answers

What adds to be the bottom number but also multiplies to be the top?

frozen [14]

3 can be multiplied to 5 and the answer would be 15
3 can be added to 5 and the answer would be 8

6 0

3 years ago