3 years ago

I really need help with these questions !!!! Plzzz! 2-4

Mathematics

2 answers:

tresset_1 [31]3 years ago

6 0

The picture I sent is how to do #2

Igoryamba3 years ago

4 0

4) Triangle DMC is Isosceles because only two of its sides are equal and the other is not which is the bottom one therefore it makes it isosceles and not equilateral because not all of it’s sides are equal

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PLEASE HELP ME WITH THIS ONE QUESTION

vesna_86 [32]

Answer:

option C

Step-by-step explanation:

Total number of items = 5

Number of items to choose = 2

Therefore, the number of combinations is

$5C_2 = \frac{5 \times 4}{1 \times 2} = 10$

6 0

3 years ago

Anastasia is grocery shopping with her father and wonders how much shopping is left to do. "We already have 6 0 % 60%60, percent

Molodets [167]

If there are 12 items adding up to 60%, we want to know how many items more it will take to equal 100% So set up this equation 12/x = .6 then solve for x. x=12/.6 x = 20 now that we know the total you can subtract 12 from 20 and get 8, that is the number of items left on the list.

8 0

3 years ago

Read 2 more answers

Lee is thinking of two Numbers,the product is 18. the quotient is 2

defon

X, y - the numbers

The product is 18.
$xy=18$

The quotient is 2.
$\frac{x}{y}=2 \ \ \ |\times y \\
x=2y$

Substitute 2y for x in the 1st equation:
$2y \times y=18 \\
2y^2=18 \ \ \ |\div 2 \\
y^2=9 \\
y=\pm \sqrt{9} \\
y=3 \ \lor \ y=-3 \\ \\
x=2y \\
x=2 \times 3 \ \lor \ x=2 \times (-3) \\
x=6 \ \lor \ x=-6 \\ \\
(x,y)=(6,3) \hbox{ or } (x,y)=(-6,-3)$

The numbers are 6 and 3 or -6 and -3.

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3 years ago

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How do you simplify each expression 3-5w+12+2w-3

Wittaler [7]

3-5w+12+2w-3
(3+12-3)=12
(-5w+2w)=-3w
-3w+12

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2 years ago

If a diver is 100 feet below the surface, what is the pressure of the water on the diver?

Stella [2.4K]

I think the pressure is going to be hard when you dive 100 feet deep below surface

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3 years ago