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4 years ago

How many terms are in the algebraic expression 5x^4+6x^3-2x+7 A.3 B.4 C.2 D.5

Mathematics

2 answers:

Klio2033 [76]4 years ago

7 0

How many term it means
5x^4 is one
6x^3 is two
-2x is three
7 is four

answer is 4

answer is B

hram777 [196]4 years ago

3 0

Answer:

Option B is correct

4 terms are in the algebraic expression

Step-by-step explanation:

Terms defined as it can be a number , a constant term or a variable multiplied by a variables or variable term.

Given the expression:

$5x^4+6x^3-2x+7$

here, x is the variable terms.

by definition of terms;

Terms in the given expression are:

$5x^4$

$6x^3$

$2x$ and

$7$

Therefore, the total number of terms in the given expression is 4

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3 years ago

Solve the equation f- (-4) =12

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3 years ago

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A spherical balloon currently has a radius of 19cm. If the radius is still growing at a rate of 5cm or minute, at what rate is a

miv72 [106K]

Answer:

22670.8 cm³/min

Step-by-step explanation:

Given:

Radius of the balloon at a certain time (r) = 19 cm

Rate of growth of radius is, $\frac{dr}{dt}=5\ cm/min$

The rate at which the air is pumped in the balloon can be calculated by finding the rate of increase in the volume of the balloon.

So, first we find the volume of the sphere in terms of 'r'. As the balloon is spherical in shape, the volume of the balloon is equal to the volume of a sphere. Therefore,

Volume of balloon is given as:

$V=\frac{4}{3}\pi r^3$

Now, rate of increase of volume is obtained by differentiating both sides of the equation with respect to time 't'.

Differentiating both sides with respect to time 't', we get:

$\frac{dV}{dt}=\frac{d}{dt}(\frac{4}{3}\pi r^3)\\\\\frac{dV}{dt}=\frac{4\pi}{3}(3r^2)(\frac{dr}{dt})\\\\\frac{dV}{dt}=4\pi r^2(\frac{dr}{dt})$

Now, plug in 19 cm for 'r', 5 cm per minute for $\frac{dr}{dt}$ and solve for $\frac{dV}{dt}$ . This gives,

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4 years ago

Find the area of the shaded region. Express your answer in terms of π.

rusak2 [61]

Answer:

335.115

Step-by-step explanation:

First you find the area of the circles to do that you do pi times radius squared

For the top square do 3.14(pi)time 3²=28.26

For the middle square do 3.14 times 4.5²=63.585

For the bottom square do 3.14 times 6²=113.04

Now find the area of the entire thing do 18×12+9+6+3=18×30=540

Finally do 540-the area of the squares 28.26-63.585-113.04= 335.115

So the shaded region is 335.115

Hope this helps and have a great day!

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3 years ago

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