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3 years ago

11/2 z + 9/5 = 1.8 + 12z -6.5z=?

Mathematics

2 answers:

storchak [24]3 years ago

5 0

Answer:

Step-by-step explanation:

grin007 [14]3 years ago

3 0

Answer/Step-by-step explanation:

11/2z+9/5=1.8+12z-6.5z

We move all terms to the left:

11/2z+9/5-(1.8+12z-6.5z)=0

Domain of the equation: 2z!=0

z!=0/2

z!=0

z∈R

We add all the numbers together, and all the variables

11/2z-(5.5z+1.8)+9/5=0

We get rid of parentheses

11/2z-5.5z-1.8+9/5=0

We calculate fractions

There is no solution for this equation

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Tema [17]

Answer:

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Step-by-step explanation:

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A trapezoid has a height of 6 feet. The measures of the bases are 12 units and 18

Alik [6]

The area of this trapezoid is 90 square feet.

<h3>Explanation : </h3>

Before we know the answer, let's we know the formula first. The formula for count the area of trapezoid is :

$\boxed {\bold {A = \frac {(a+b) \times h}{2}}}$

If :

A = area of trapezoid
a = bottom bases of trapezoid
b = top bases of trapezoid
h = height of trapezoid

Okay, let's we count its :

We know that :

a = bottom bases of trapezoid = 18 feet
b = top bases of trapezoid = 12 feet
h = height of trapezoid = 6 feet

Question : A = area = ... ?

Answer :

$A = \frac {(a+b) \times h}{2} \\ A = \frac {(12+18) \times \cancel6}{\cancel2} \\ A = 30 \times 3 = 90 \: {ft}^{2}$

Subject : Mathematics

Keyword : Count The Area of a shape

8 0

3 years ago

A painting contractor paints with a brush at a rate of 192 square feet per hour. using a paint sprayer, she is able to cover 576

lara31 [8.8K]

Hi there,

2400 + 1632 = 4032

3 * 192 = 576

4032 - 576 =>

3532 - 76 =>

3532 + 24 - 76 - 24

3556 - 100

3456

3456 / 576 => 6

Therefore, 6 hours of sprayer work

Hope this helps!

Sincerely,

Dus4nR

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3 years ago

Please help need it quick will give brainliest thanks

Norma-Jean [14]

Use the Pythagorean theorem:

$x^2+8^2=11^2\\\\x^2+64=121\ \ \ |-64\\\\x^2=57\to x=\sqrt{57}\\\\x\approx7.5$

Answer: C. 7.5

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3 years ago

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11/2 z + 9/5 = 1.8 + 12z -6.5z=?​

11/2 z + 9/5 = 1.8 + 12z -6.5z=?