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soldier1979 [14.2K]
3 years ago
8

How to factor 21x to the third +84 squared + 15x - 60​

Mathematics
1 answer:
svetlana [45]3 years ago
7 0

Answer:

x = 4

 x=  0.0000 - 0.8452 i

 x=  0.0000 + 0.8452 i

Step-by-step explanation:

im not sure tho

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Hi, can you please solve that fast?​
Elenna [48]

Answer:

A.

Step-by-step explanation:

4 < 6t + 1 ≤ 43 (Given)

3 < 6t ≤ 42 (Subtracted 1 on both sides)

1/2 < t ≤ 7 (Divided 6 on both sides)

You are looking for an open dot on 1/2 and a shaded dot on 7 with a line between them. Therefore, the answer is A.

8 0
3 years ago
Write an exponential equation in the form y = abx whose graph passes through points (−3, 24) and (−2, 12). y = 3x y = 3(0.5)x y
Bingel [31]

Answer:

Option B.

Step-by-step explanation:

The given exponential equation is

y=ab^x  ...(1)

It is given that the graph of above equation passes through points (−3, 24) and (−2, 12).

The graph passes through the point (-3,24), so substitute  x=-3 and y=24 in equation (1).

24=ab^{-3}   ...(2)

The graph passes through the point (-2,12), so substitute  x=-2 and y=12 in equation (1).

12=ab^{-2}   ...(3)

Divide equation (3) by equation (2).

\dfrac{12}{24}=\dfrac{ab^{-2}}{ab^{-3}}

0.5=b

Substitute b=0.5 in equation (2).

24=a(0.5)^{-3}

24=\dfrac{a}{(0.5)^{3}}

24=\dfrac{a}{0.125}

24\times 0.125=a

3=a

Substitute a=3 and b=0.5 in equation (1).

y=3(0.5)^x

Therefore, the correct option is B.

8 0
3 years ago
Compute each quotient using the identities you discovered in this lesson.x^4-16/x-2
luda_lava [24]

Answer:

The quotient will be (x^2+4)(x+2)

Step-by-step explanation:

We have given the equation \frac{x^4-16}{x-2}

We have to find the quotient

From algebraic equation we know that a^2-b^2=(a+b)(a-b)

So \frac{x^4-16}{x-2}=\frac{(x^2)^2-4^2}{x-2}=\frac{(x^2+4)(x^2-4)}{x-2}=\frac{(x^2+4)(x+2)(x-2)}{x-2}=(x^2+4)(x+2)

So the quotient will be (x^2+4)(x+2)

8 0
3 years ago
Volume of cylinder with a radius of 8cm and height of 25 cm
Anarel [89]

Answer:

V≈5026.55 cm³ is the exact answer! If you need to use only 3.14 for π then 5024 cm³

Step-by-step explanation:


7 0
4 years ago
A federal income tax exists to provide revenue for
djverab [1.8K]

Answer:

schools and other services

4 0
3 years ago
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