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3 years ago

Solve for x. 5x2+70x+245 = 0

Mathematics

2 answers:

stepan [7]3 years ago

6 0

Answer:

x = -7

Step-by-step explanation:

Oxana [17]3 years ago

4 0

X is -7. You solve by factoring and setting X to one side of the equation

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Help Plz Due Tmrw. ......

romanna [79]

Answer:

i´ll help here

the smallest is (-3)^0

the second smallest or biggest is 16^1/2

the biggest one is (1/27)^-1/3

Step-by-step explanation:

hope this is correct

4 0

2 years ago

Read 2 more answers

Can someone pls explain how to do this

Rama09 [41]

The polynomial A is represented as x - 2, making option A the right choice.

In the question, we are asked to find the correct representation of A, when the algebraic expression (x² + x)/(x + 3) can be rewritten as the algebraic expression A + 6/(x + 3), where A is a polynomial.

Thus, we can write an equation,

A + 6/(x + 3) = (x² + x)/(x + 3),

or, A + 6/(x + 3) - 6/(x + 3) = (x² + x)/(x + 3) - 6/(x + 3) {Subtracting 6/(x + 3) from the both sides of the equation}

or, A = (x² + x)/(x + 3) - 6/(x + 3) {Simplifying},

or, A = (x² + x - 6)/(x + 3) {Subtracting the two fractions with the same denominator (x + 3)},

or, A = (x² + 3x - 2x - 6)/(x + 3) {Mid-term factorization},

or, A = {x(x + 3) - 2(x + 3)}/(x + 3) {Taking common},

or, A = {(x - 2)(x + 3)}/(x + 3) {Taking (x + 3) common},

or, A = x - 2 {Cancelling (x + 3) from the numerator and the denominator}.

Thus, the polynomial A is represented as x - 2, making option A the right choice.

Learn more about polynomials at

brainly.com/question/11434122

#SPJ1

5 0

1 year ago

What is the volume of this composite figure? Use the pi button on your calculator and round the answer to the nearest tenth.

8090 [49]

Notice that the figure is composed by a cylinder of height 4ft and diameter 16ft, and a cone with height 6ft and a diameter of 16ft.

Since the radius of a circle is half its diameter, in both cases the radius is equal to 8ft.

Find the volume of each figure and then add them to find the total volume of the composite figure.

Cone:

The volume of a cone with radius r and height h is given by the formula:

$V=\pi r^2\frac{h}{3}$

Substitute r=8ft and h=6ft:

$\begin{gathered} V=\pi(8ft)^2\cdot\frac{6ft}{3} \\ =\pi\cdot64ft^2\cdot2ft \\ =\pi\cdot128ft^3 \\ =128\pi ft^3 \end{gathered}$

Cylinder:

The volume of a cylinder with radius r and height h is given by the formula:

$V=\pi r^2h$

Substitute r=8ft and h=4ft:

$\begin{gathered} V=\pi(8ft)^2(4ft) \\ =\pi\cdot64ft^2\cdot4ft \\ =\pi\cdot256ft^3 \\ =256\pi ft^3 \end{gathered}$

Composite figure:

Add the volume of the cone and the cylinder to find the volume of the composite figure in terms of π:

$\begin{gathered} V=128\pi ft^3+256\pi ft^3 \\ =384\pi ft^3 \end{gathered}$

Use the π button on the calculator to find a decimal expression of 384π:

$\Rightarrow V=1206.371579\ldots ft^3$

Therefore, the volume of the composite figure, to the nearest tenth, is:

$V\approx1206.4\text{ }ft^3$

6 0

1 year ago

Based on this map, which crop was produced in most parts of Georgia in 1930?

aalyn [17]

Answer:

cotton

Step-by-step explanation:

7 0

2 years ago

PLEASE HELP ASAP!!

Ber [7]

Answer:

$2\sqrt{2}$

Step-by-step explanation:

A^2 + B^2 = C^2

1^1 + y^2 = 3^3

1 + y^2 = 9

y^2 = 8

y = $2\sqrt{2}$

8 0

3 years ago