2 years ago

Which expression is equivalent to -2.1 + (-5.9) + (-3.7)?

1 answer:

4 0

I think the best answer would be (A) (2.1+5.9+3.7) but the only difference is that one is negative an the other is positive

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Please help asap!<br><br> Use the difference quotient to find the derivative of f(x)= 4/x at x=3.

saveliy_v [14]

F (x)= 4/x

F(3)= 4/3

4/3 I think

4 0

2 years ago

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Margo can purchase tile at a store for $0.69 per tile and rent a tile saw for $32. At another store she can

puteri [66]

Answer:

32 tiles

Step-by-step explanation:

32+0.69*n= 32.69

32.69*n= 32.69n-0.69

=32

7 0

2 years ago

2(3x – 1) = 6x – 2 number of solutions

Alexxandr [17]

Answer: All real numbers are solutions.

Step-by-step explanation:

Let's solve your equation step-by-step.

2(3x−1)=6x−2

Step 1: Simplify both sides of the equation.

2(3x−1)=6x−2

(2)(3x)+(2)(−1)=6x+−2(Distribute)

6x+−2=6x+−2

6x−2=6x−2

Step 2: Subtract 6x from both sides.

6x−2−6x=6x−2−6x

−2=−2

Step 3: Add 2 to both sides.

−2+2=−2+2

0=0

4 0

1 year ago

A standard New York car license plate has 3 letters followed by 4 numbers. If the letters and numbers can be repeated, the numbe

mel-nik [20]

since numbers and letters can be repeated it should be

26 x 26 x 26 x 10 x 10 x 10 x10 = 175,760,000

5 0

2 years ago

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A water molecule is made up of 3 atoms. One third of the atoms are oxygen and the remaining atoms are hydrogen. If there are 114

Mashcka [7]

Answer:

228 hydrogen atoms

Step-by-step explanation:

In a water molecule,

1/3rd is oxygen atoms, and

2/3rd (1 - 1/3 = 2/3) is hydrogen atoms

If there are 114 water molecules,

Total number of atoms would be:

3 * 114 = 342 (1 oxygen and 2 hydrogen atoms in 1 water molecule)

Out of these, 2/3rd would be hydrogen atoms, so:

$\frac{2}{3}*342=228$

There would be 228 hydrogen atoms

7 0

2 years ago