MATHEMATICS COLLEGE

Solve the equation:

a+20=11

Answers

Answer 1
Answer:

Answer:

a=

Step-by-step explanation:

a +20=11

-20-20

a= -9
Answer 2
Answer: subtract 20 on each side, you get a=-9

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What is the area of the trapezoid? If necessary, round your answer to the nearest tenth. A trapezoid with bottom side length of 8.5 feet, top side length of 5.5 feet, and height of 6.5 feet. 35.8 feet squared 45.5 feet squared 46.8 feet squared 55.3 feet squared

Answers

Answer:

45.5 sq. feet

Step-by-step explanation:

Area of trapezoid is given by 1/2(sum of parallel sides) * height of trapezoid.

In the problem

Parallel sides are  bottom and top sides with  length of 8.5 feet and 5.5 feet

Thus sum of Parallel sides =  8.5 feet + 5.5 feet = 14 feet

Height =  6.5 feet.

Thus,

area of  trapezoid = 1/2*(14)* 6.5 feet = 7*6.5 feet = 45.5 sq. feet

The area of the trapezoid is whose sides are 8.5 feet and 5.5 feet with a height of 6.5 feet is 45.5 feet squared.

What is the area of a trapezoid?

A trapezoid is a quadrilateral with parallel opposite sides and a height.

Mathematically, the area of a trapezoid can be calculated by using the expression:

\mathbf{Area \ of\ a \ trapezoid = (1)/(2)(a+b)* h}

where:

  • a and b =the two parallel sides of the trapezoid
  • h = height

\mathbf{Area \ of\ a \ trapezoid = (1)/(2)(8.5+5.5)* 6.5}

\mathbf{Area \ of\ a \ trapezoid = (1)/(2)(14)* 6.5}

\mathbf{Area \ of\ a \ trapezoid = 45.5 \ ft^2}

Learn more about calculating the area of a trapezoid here:

brainly.com/question/1410008

#SPJ2

Which of the following expression are equivalent to 2x+4 select three answers?A.6x
B.1/3(18x)
c.1/3(6x+12)
d.2/3(3x+6)
e.2(x+4)
f.4(1/2x+1)

Answers

Answer:

A.6x

Step-by-step explanation:

hope i helped!! ...............

diane draws abtuse, isoscules triangle with one of the angle mesuring 35. what i sthe messer of teh obtuse triangle

Answers

Answer:

All angle = (110°, 35°, 35°)

Step-by-step explanation:

Given:

Triangle is a Obtuse isosceles triangle

One angle = 35°

Find:

All angle

Computation:

In the Obtuse isosceles triangle, one angle is obtuse and the other two angles are acute so, two equal angles are 35°

So,

Sum of angle property

x + 35° + 35° = 180°

x = 110°

Obtuse angle = 110°

All angle = (110°, 35°, 35°)

how many pounds of chamomile tea that costs 18.20 per pound must be mixed with 12lb of orange tea that costs 12.25 per pound to make a mixture that costs 14.63 per pound

Answers

8 pounds of chamomile tea must be mixed to make a mixture that costs 14.63 per pound.              

Step-by-step explanation:

We are given the following in the question:

Chamomile tea:

Unit cost = 18.20 per pound

Amount = x pounds

Total cost =

18.20* x = 18.20x

Orange tea:

Unit cost = 12.25 per pound

Amount = 12 pounds

Total cost =

12.25* 12 = 147

Total mixture:

Unit cost = 14.63 per pound

Amount = (12+x) pounds

Total cost =

14.63* (12+x) = 175.56 + 14.63x

We can write the equation that cost of mixture is equal to cost of chamomile tea and orange tea.

18.20x + 147 = 175.56 + 14.63x\n\Rightarrow 18.20x- 14.63x = 175.56-147\n\Rightarrow 3.57x = 28.56\n\Rightarrow x = 8

Thus, 8 pounds of chamomile tea must be mixed to make a mixture that costs 14.63 per pound.

1.682 inches rounded to the nearest whole number is 1 inch. True or False

Answers

The answer is false

Step-by-step explanation:

6 is closer to 10

Find the standard form of the equation
(-7,-13) and (7,-11)

Answers

Answer:

x-7y=84

x-7y-84=0

Step-by-step explanation:

y=mx+c

y=ax+b

ax+by=c or ax+by-c=0

m= 1/7

y=1/7x-12

x-7y=84

x-7y-84=0
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