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3 years ago

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The equation below shows the area of a trapezoid, A, with a height of 9 cm, and one base 35 cm A = 9 over 2(b + 35). Which of th

e following formulas correctly solves for the other base, b? A. b = 2A over 9 + 35. B. b = 2 multiplied by A over 9 - 35. C. b = 2 multiplied by A plus 35, all over 9 D. b = 2 multiplied by A minus 35, all over 9

2 answers:

stepladder [879]3 years ago

8 0

B - the other base;
A = 9/2 ( b + 35 ) / * 2 ( we will multiply both sides of the equation by 2 )
2 A = 9 ( b + 35 )
b + 35 = 2 A / 9
b + 35 - 35 = 2 A / 9 - 35
b = (2 A / 9 ) - 35
Answer: B ) b = 2 multiplied by A over 9 - 35

TiliK225 [7]3 years ago

3 0

Answer:

b

Step-by-step explanation:

b - the other base;

A = 9/2 ( b + 35 ) / * 2 ( we will multiply both sides of the equation by 2 )

2 A = 9 ( b + 35 )

b + 35 = 2 A / 9

b + 35 - 35 = 2 A / 9 - 35

b = (2 A / 9 ) - 35

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<h2>3</h2>

Step-by-step explanation:

The equation of line passing through the two points is $\frac{y-y_{1} }{x-x_{1} }=\frac{y_{2} -y_{1}}{x_{2} -x_{1}}$

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which when simplified is $y=3\times x$

The line clearly passes through origin.

The distance between two points is $\sqrt{(y_{1}-y_{2} )^{2}+(x_{1}- x_{2} )^{2}}$

Distance between origin and $(2,6)$ is $\sqrt{40}$ .

Distance between origin and $(6,18)$ is $\sqrt{360}$

Scale factor is $\frac{distance\text{ }of\text{ }p_{2}\text{ from origin}}{distance \text{ } of \text{ } p_{1}\text{ from origin}}$

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3 years ago

On an exam you get two points for every question answered correctly, zero points for each question left blank and lose one-half

Paraphin [41]

Using multiplication, the total score on the exam if you answered 13 questions correctly, leave 7 questions blank and answer 5 questions incorrectly is 39 point.

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For each question left blank, you get 0 points, and there are 7 questions left blank, so multiply 7 by 0

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For each incorrect question, you get -1 point, and there are 5 incorrect questions, so multiply 5 by -1

5 * (-1) = -5 points.

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3 years ago

A farmer has both pigs and chickens on his farm there are 78 fee and 27 heads how many pigs and how many chickens are there

Andre45 [30]

Assuming health non-mutated animals:
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