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2 years ago

6*9+(6+9)=? Plz I really need this in the next minute.

Mathematics

1 answer:

Romashka [77]2 years ago

5 0

6*9+(6+9)= 6*9+15= 54+15=69 you have to use Pemdas

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Plz help i dont know the answer

Yuliya22 [10]

Answer:

Im not 100 percent sure but I think you have to do this

Step-by-step explanation:

Add all numbers together to find total students

Then add the students in Chemistry and Physics and both together

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4 0

3 years ago

On paper, make a rectangle that has points A and B as two of its vertices and has a perimeter of 40 units. Draw and label the tw

Westkost [7]

Answer:

$A(x,y),B(x+10,y),C(x+10,y-10) \:and\: D(x,y-10)$

Step-by-step explanation:

If a Rectangle has a perimeter of 40 units, then we can write that formula and find the a formula for the coordinates:

$\left\{\begin{matrix}w+l=20 & \\ w*l=100 & \end{matrix}\right.\Rightarrow w=20-l\Rightarrow (20-l)l=100\Rightarrow -l^2+20l-100=0\Rightarrow l^2-20l+100\Rightarrow (l-10)(l-10)\Rightarrow l=10\therefore l=10\: and\: w=10$

Therefore we can say:

$A(x,y),B(x+10,y),C(x+10,y-10) \:and\: D(x,y-10)$

Technically when $w=l$ in this rectangle is a square, a degenerate square.

8 0

3 years ago

PLEASE HELP ME!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!

Delicious77 [7]

Answer:

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

When 40% of a number is added to twice the number, the result is 88. What is the number?

Leni [432]

17.6 because you do the working out backwards :)

7 0

3 years ago

Read 2 more answers

Find the area of the trapezoid to the nearest tenth.

NISA [10]

You know the missing side of the bottom base is 6 because of the 30 60 90 special right triangle. The height is 6sqrt3 because of what i said above too, The area of a trapezoid is 1/2 b1+b2*h so 30+36*6sqrt3 is 396sqrt3 divided by 2 is 298sqrt3

4 0

2 years ago