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sp2606 [1]
2 years ago
12

Simplify the expression.

Mathematics
1 answer:
Neporo4naja [7]2 years ago
3 0

Answer:

D

Step-by-step explanation:

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Three lengths of 2.25 feet each are cut from a board 12 feet long. How long is the remaining piece of wood?
k0ka [10]
12 -3 × 2.25 = 12.00 - 6.75 = 5.25 feet ;
5 0
3 years ago
X^2=7^2+8^2-2(7)(8)(cos32)
Natasha_Volkova [10]

Answer:

x ≈4.244833711

Step-by-step explanation:

x^2=7^2+8^2-2(7)(8)(cos32)

Determine the powers

x^2=49+64-2(7)(8)(cos32)

Multiply from left to right

x^2 = 49+64 - 112cos32

x^2 = 49+64 - 94.98138677

Add and subtract

x^2 =113-94.98138677

x^2 = 18.01861323

Take the square root of each side

sqrt(x^2) = sqrt(18.01861323)

x = sqrt(18.01861323)

x ≈4.244833711

x^2 =113

3 0
3 years ago
Solve:<br> 10c + 20 = 40<br> c =
Dvinal [7]
C= 2


...................................
8 0
3 years ago
Need Help
masya89 [10]
So you subtract $22.89 from $54.73 to get a total of $31.84 and that’s how much the customer paid.
6 0
3 years ago
Help on this assignment please :(
topjm [15]

Answer:

x = 16

Step-by-step explanation:

The diagram can be misleading because angle A does not correspond to angle F. Rather angle F corresponds to angle C.

In congruent triangles, corresponding angles have the same measure. The sum of angles is always 180°, so we have ...

... m∠A +m∠B +m∠C = 180°

... (3x+6)° +50° +(9x -68)° = 180°

... 12x -12 = 180 . . . . . divide by °, collect terms

... x -1 = 15 . . . . . . . . . .divide by the coefficient of x

... x = 16 . . . . . . . . . . . add 1

_____

<em>Check</em>

m∠A = (3x+6)° = 54°

m∠C = (9x -68)° = 76°

The total of angles is 54° +50° +76° = 180°. . . . . as it should be

7 0
3 years ago
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