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3 years ago

How in the heck do I do this?

Mathematics

1 answer:

Fudgin [204]3 years ago

6 0

The measure of a triangle is 180 degrees. In other words the sum of the angles of a triangle is 180 degrees

To solve for x set all of the expressions of angles equal to 180 and isolate x

11x - 3 + 7x + 5 + 13x - 8 = 180

31x + (- 6 + 6) = 180 + 6

31x/31 = 186 / 31

x = 6

To find the measure of each angle plug 6 into the x into each individual expression

Hope this helped!

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In each of the following problems, type the price per unit per oz in blanks a. and b, then pick the best buy.

Kaylis [27]

Answer:

B the 2 lb bread for 1.75

Step-by-step explanation:

The dollar per ounce for bread is $0.058 .

The dollar per ounce of bread is $0.055 .

b is the best buy .

Step-by-step explanation:

First part

As given

Bread, 1 lb. loaf for 96¢ would .

1 dollar = 100 cent

Now convert 96¢ into dollars .

= $0.96

As 1 pound = 16 ounce

Thus

Bread 16 ounce loaf for $0.96 .

Therefore the dollar per ounce for bread is $0.058 .

Second part

Bread, 2 lb. loaf for $1.75

As 1 pound = 16 ounce

2 pound = 2 × 16 ounce

= 32 ounce

Dollar per ounce = $ 0.055

Therefore dollar per ounce of bread is $0.055 .

Third part

As dollar per ounce for Bread, 2 lb. loaf for $1.75 is less as compared to Bread 1 lb. loaf for 96¢ .

Therefore b is the best buy .

3 0

2 years ago

Multiply: (sqrt10 +2 sqrt8)(sqrt10-2 sqrt8)

vesna_86 [32]

Answer:

(√10 +2√8)(√10 -2√8)=

(10 -8√5 + 8√5 -32)

10+0-32

10-32

= -22

Hope this helps.

6 0

3 years ago

Oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well. Initially there were 3 mill

abruzzese [7]

Answer:

V' = -0.11552 *V\\= -0.11552(1.8)\\ \\=-0.20794 million per year

Step-by-step explanation:

Given that oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well. Initially there were 3 million barrels of oil in the well; six years later 1,500,000 barrels remain.

i.e. if V stands for volume of oil, then

$V' =kV\\dv/V= kdt\\ln V = kt+C\\V = Ae^{kt}$

To find A and k

V(0) = A = 3 million

Hence V = $3e^{kt}$

V(6) = 1.5

i.e. $1.5 = 3e^{6k}\\ln 1.5 =ln 3 +6k\\k = -0.11552$

$V(t) = 3e^{-0.11552t}$

a) Using the above value of k , we have

$V' = -0.11552 *V\\= -0.11552(1.8)\\ \\=-0.20794$ million per year.

4 0

3 years ago

Please help will mark brainliest

Lynna [10]

Z^5/8

You can tell this because exponents get added together when multiplying and the fact that the fraction goes down by a multiple of 1/8.

6 0

2 years ago

If x=4 and y=3 what is the value of 5x+2y-6 show how you got the answer.

Oksana_A [137]

Answer:

Given x = 4 and y = 3

Step-by-step explanation:

5x +2y -6 = 5*4 + 2*3 -6

= 20 + 6 - 6

7 0

3 years ago

Read 2 more answers

How in the heck do I do this?​

How in the heck do I do this?