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3 years ago

"Five times the difference of twice a number and three,

Mathematics

1 answer:

Gala2k [10]3 years ago

7 0

Answer:

Step-by-step explanation:

5(2x-3)-(x+8) = 13

10x-15-x-8 = 13

9x = 36

x = 4

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A rectangular parking lot is enclosed by concrete barriers 5 feet long. There are 160 barriers in total. Determine the maximum a

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2 years ago

At the gas station, each liter of gas costs $3 but there's a promotion that for every beverage you purchase you save $0.20 on ga

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3 years ago

Rewrite ^5 square root of 4 * square root of 2 as a single radical

Irina-Kira [14]

The answer is the first one in the options

3 0

3 years ago

Read 2 more answers

Find the value of x.

Andrew [12]

Answer:

Step-by-step explanation:

We're given the adjecent and we're looking for the hypotenuse so we'll have to use cosine ratio.

11 / cos 38 = 13.959.....

x = 14.0

We can also use the tangent ratio to look for the opposite and then use pythagorean to find the hypotenuse.

11(tan 38) = 8.594......

8.594.....² + 11² = 194.859......

Square root of 194.859..... = 13.959.......

8 0

3 years ago

Could someone help me with this ASAP? thanks !

Maru [420]

<h3>Answer:</h3>

A. $6x^2$ +-5x+14x+-35

$6x^2$ +9x-35

B. $5x^4+-3x^3+10x^3+-6x^2$

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

C. $25x^2+-20x+20x+-16$

$25x^2-16$

D. $x^4+-4x^2+-7x^2+28$

$x^4-11x^2+28$

$====================================$

Step-by-step explanation:

A. (3x*2x)+(3x*-5)+(7*2x)+(7*-5)

Multiply and simplify.

$6x^2$ +9x-35

B. ( $x^2*5x^2$ )+( $x^2*$ -3x)+(2x $*5x^2$ )+(2x $*-3x$ )

Multiply and simplify.

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

C. $(5x*5x)+(5x*-4)+(4*5x)+(4*-4)$

Multiply and simplify.

$25x^2-16$

D. $(x^2*x^2)+(x^2*-4)+(-7*x^2)+(-7*-4)$

Multiply and simplify.

$x^4-11x^2+28$

I hope this helps!

But you should really do this yourself.

3 0

3 years ago