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3 years ago

Lucy has a 40-inch T.V. This means the diagonal distance from one corner of the T.V. to the other is 40 inches.

1 answer:

5 0

Using Pathogorean Theorem.....

40 = the square root of 24^2 + 32^2
40 = the square root of 576 + 1024
40 = the square root of 1600
40 = 40

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What is the simplified expression for Negative 3 (2 x minus y) + 2 y + 2 (x + y)?

Lana71 [14]

Answer:

$7y - 4x$

Step-by-step explanation:

$-3 (2x-y)+2y+2(x+y)\\$

Step 1: Open the brackets

$= -6x+3y +2y +2(x+y)\\=-6x +3y + 2y +2x + 2y$

Step 2: Bring the similar variables together

$=-6x +2x \ +3y + 2y + 2y$

Step 3: Simplify by adding/subtracting the coefficients of the similar variables

$= - 4x +7y$

Step 4: Rearrange as required.

5 0

3 years ago

Read 2 more answers

1.) An American tourist changed US $925 into Trinidad and Tobago currency at the exchange rate US $1.00= TT $ 4.25

storchak [24]

Step-by-step explanation:

1)a) 925×4.25=3931,25

b) 1806.25:4.25=425

I don't know second one.

3)a 55×1.12=61.6

8 0

3 years ago

Please needed as soon as possible thank you

stich3 [128]

Answer:

43. $= \frac{.0045}{100}$

44. $4\frac{9}{10}$

45. 8

Step-by-step explanation:

43. 0.45% = .0045

$= \frac{.0045}{100}$

44. $\frac{1}{2}$ • $9\frac{4}{5}$

= $4\frac{9}{10}$

45. VIII = 8

3 0

3 years ago

Test scores for a Statistics class have a mean of 78 with a standard deviation of 6. Suppose a student gets an 81 on that test.

Ostrovityanka [42]

Answer:

0.3209

in case you dont know A z-score tells you if the distribution it comes from is normal.

Step-by-step explanation:

5 0

3 years ago

Answer with explanation please!

VLD [36.1K]

Answer:

Step-by-step explanation:

The external angle of a triangle is equal to the sum of the 2 opposite interior angles.

8x + 15 is an external angle of the triangle, thus

8x + 15 = 3x + 20 + 4x + 5, that is

8x + 15 = 7x + 25 ( subtract 7x from both sides )

x + 15 = 25 ( subtract 15 from both sides )

x = 10

Thus none of them on the list → E

3 0

3 years ago