Can someone plz help me understand this
Can someone plz help me understand this - 1

Answers

Answer 1
Answer:

Answer:

The length of the guy wire is 17ft.

Step-by-step explanation:

c = \sqrt{a^(2)+b^(2) }

a = 15ft

b = 8ft

c = \sqrt{15^(2) + 8^(2) }

c = √(225 + 64)

c = √(289)

c = 17

The length of the guy wire is 17ft.

Answer 2
Answer:

Answer:

17

Step-by-step explanation:

c=15×15+8×8

c=225+64

c=289=17


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The augmented matrix of a system of equations has been transformed to an equivalent matrix in​ row-echelon form. Using​ x, y, and z as​ variables, write the system of equations corresponding to the following matrix. If the system is​ consistent, solve it.left bracket Start 3 By 3 Matrix 1st Row 1st Column 1 2nd Column 2 3rd Column 2 2nd Row 1st Column 0 2nd Column 1 3rd Column negative 3 3rd Row 1st Column 0 2nd Column 0 3rd Column 1 EndMatrix Start 3 By 1 Table 1st Row 1st Column 4 2nd Row 1st Column 9 3rd Row 1st Column negative 2 EndTable right bracket1 2 20 1 −30 0 149−2Which of the following system of equations corresponds to the given​ matrix?A.x plus 2 y plus 2 zx+2y+2zequals=44y minus 3 zy−3zequals=99zequals=minus−22B.2 x plus 2 y2x+2yequals=44negative 3 y−3yequals=99zequals=minus−22C.2 x plus 2 y plus 4 z2x+2y+4zequals=1negative 3 y plus 9 z−3y+9zequals=1minus−zequals=1D.xequals=442 x plus y2x+yequals=992 x minus 3 y plus z2x−3y+zequals=minus−22Select the correct choice below and fill in any answer boxes in your choice.A.The solution set isStartSet nothing EndSet{}.​(Type an ordered​ triple.)B.The solution is the empty set.
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Math final help.........

I need help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The answer is
A:positive
It would be negative

Write and evaluate the expression. Then, complete the statements. nine more than the product of seven and a number decreased by three The expression to model the situation is 1. 3 - 9(7n) 2. 9 + 7/n - 3 3. 9 + (7 + n) - 3 4. 9 + 7n - 3 . The value of the expression when n = 8 is 1. 6 7/8 2. 71 3. 62 4. 501

Answers

Answer: 4. 9 + 7n - 3

3. 62

Step-by-step explanation:

Given statement: nine more than the product of seven and a number decreased by three

Let n be the number.

Then, required expression: 9+7n-3

Correct option is 4.

When n= 8 ,  

The value of expression = 9+7(8)-3= 9+56-3 =62

Hence, value of the expression when n = 8 is 62.

Correct option is 3.

Find the constant of proportionality for the table and write in the form y = kx.A) y = 9x

B) y = 10x

C) y = 90x

D) y = 1/10x

Please give an honest answer = )

Answers

Answer:

B) y = 10x

Step-by-step explanation:

It should not be too hard for you to determine that every number on the bottom row is the same as the number on the top row with a zero appended.

Appending a zero to a number is the same as multiplying it by 10. For example, ...

... 90 = 10·9

... y = 10x

_____

In case that observation doesn't work out for you, you can always solve the given equation for k, then choose values from the table to fill in.

... y = kx

... k = y/x . . . . . divide by the coefficient of k, which is x

Fill in values from the table

... k = 20/2 = 10 . . . . . . from the second column

Now put this value where k is in the equation. After you do that, you know ...

... y = 10x

slope = (30 - 20)/(3 - 2) = 10 /1 = 10

equation

y = 10x

Answer

B) y = 10x


How much is 4+2x(10-5)

Answers

4+20x-10x
4+10x
10x+4
hope this helps!!!

Which equation has the same solution as x -12 = 40

Answers

Steps to solve:

x - 12 = 40

~Ad 12 to both sides

x = 52

Best of Luck!

Help plsssssssssssss

Answers

Answer:

z =  (x)/(y)

Step-by-step explanation:

Let x be the price of carton of ice cream

Let y be the number of grams in carton

Let z be price per gram.

z =  (x)/(y)

Which means price of carton of ice cream divided by the number of grams in carton equals price per gram.

Hope this helps ;) ❤❤❤