3 years ago

Write a word sentences as an expression. A number x decreased by 3 is 5.

Mathematics

1 answer:

devlian [24]3 years ago

6 0

Answer:

c: x-3=5

Step-by-step explanation:

what grade is this for?

hope this helps

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Evaluate the expression: –(31 + 2) + 72 – (–5)2.

Rudiy27

Answer:

Step-by-step explanation:

Order of operations rules require that we do any work inside parentheses first. Thus,

–(31 + 2) + 72 – (–5)^2

becomes:

-33 + 72 - 25, or

Important: Please use " ^ " to denote exponentiation; (-5)2 is incorrect, whereas (-5)^2 or (-5)² is correct.

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3 years ago

Through:(-1, 2) and (0,2)

Elis [28]

What are you asking for exactly ?

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3 years ago

If cosθ=2/3 find cscθ using identities. This is in quad. 1.

laiz [17]

Step-by-step explanation:

cos θ = 2/3

$\quad \twoheadrightarrow\sf {cos \; \theta = \dfrac{Base}{Hypotenuse} } \\$

Hence, base = 2 units and hypotenuse = 3 units.

$\quad \twoheadrightarrow\sf { H^2 = B^2 + P^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = H^2 - B^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = (3)^2 - (2)^2} \\$

$\quad \twoheadrightarrow\sf { P^2 = 9- 4} \\$

$\quad \twoheadrightarrow\bf { P = \sqrt{5}} \\$

Now, we know that :

$\quad \twoheadrightarrow\sf {cosec \; \theta = \dfrac{Hypotenuse}{Perpendicular} } \\$

$\quad \twoheadrightarrow\bf{cosec \; \theta = \dfrac{3}{\sqrt{5}} } \\$

Therefore, the required answer is 3/√5.

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2 years ago

Distributive property 7(2n+3)

Black_prince [1.1K]

its 14n+21. 7×2n is 14n, and 3×7 is 21

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3 years ago

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it should just be 2 + 27 in order to find her age!

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3 years ago

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