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10 months ago

99 times 5 distributive property

Mathematics

1 answer:

Juli2301 [7.4K]10 months ago

3 0

Answer:

495

Step-by-step explanation:

expressing 99 as 90 + 9 , then

5 × 99

= 5(90 + 9) ← multiply each term in parenthesis by 5

= 450 + 45

= 495

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bija089 [108]

Step-by-step explanation:

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Someone plz help me 1-1\2c=6

GarryVolchara [31]

1 - 1/2c = 6

1 -1 - 1/2c = 6 -1 (subtract 1 on both sides)

-1/2c = 5 (next do the inverse operation)

c = 5 ÷ 1/2

c = -10

to check your answer substitute the value of c in the equation;

1- 1/2c = 6

1- 1/2(-10) = 6

1 + 5 = 6

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3 years ago

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3 years ago

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Fantom [35]

Answer:

Given: $\sin(x) = (4/5)$ .

Assuming that $0 < x < 90^{\circ}$ , $\cos(x) = (3/5)$ while $\tan(x) = (4/3)$ .

Step-by-step explanation:

By the Pythagorean identity $\sin^{2}(x) + \cos^{2}(x) = 1$ .

Assuming that $0 < x < 90^{\circ}$ , $0 < \cos(x) < 1$ .

Rearrange the Pythagorean identity to find an expression for $\cos(x)$ .

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Given that $0 < \cos(x) < 1$ :

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Hence, $\tan(x)$ would be:

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