All categories

3 years ago

Choose whether each sum is positive or negative.

Mathematics

1 answer:

horrorfan [7]3 years ago

6 0

1: negative
2: positive
3: positive
4:negative

Hope this helps!

You might be interested in

Simplify tan9x-tan5x / 1+tan9xtan5x

Wittaler [7]

Answer:

The given expressions simplifies to tan (4x).

Step-by-step explanation:

Here, the given expression is : $\frac{tan9x - tan5x}{1+ tan9xtan5x}$

By TRIGONOMETRIC IDENTITY:

$tan (A-B) = \frac{tanA - tanB}{1+ tanAtanB}$

Putting this identity here, and taking A = 9 x, B = 5 x, we get

$\frac{tan9x - tan5x}{1+ tan9xtan5x} = tan (9x-5x)$

= tan(4x)

Hence, the given expressions simplifies to tan (4x).

5 0

3 years ago

g My Notes Water flows from the bottom of a storage tank at a rate of r(t) = 200 − 4t liters per minute, where 0 ≤ t ≤ 50. Find

Arada [10]

Answer:

4,200 liters

Step-by-step explanation:

The flow rate is given by:

$r(t) = 200 - 4t$

Integrating the flow rate expression from t=0 to t=30 minutes, yields the total volume that flows out of the tank during that period:

$\int\limits^{30}_0 {r(t)} = \int\limits^{30}_0 {(200 - 4t} )\, dt \\V=(200t - 2t^2)|_0^{30}\\V= (200*30 -2*30^2)-(200*0 -2*0^2)\\V=4,200\ liters$

4,200 liters of water flow from the tank during the first 30 minutes.

3 0

3 years ago

When factoring x2 – 3xy + 2y2 by grouping the first step can be:

blagie [28]

Answer:

x^2 – 3xy + 2y^2

Step-by-step explanation:

Factor the following:

x^2 - 3 x y + 2 y^2

Hint: | Factor the quadratic x^2 - 3 x y + 2 y^2.

The factors of 2 that sum to -3 are -1 and -2. So, x^2 - 3 x y + 2 y^2 = (x - 1 y) (x - 2 y):

Answer: (x - y) (x - 2 y)

8 0

3 years ago

F(x)=-10x-3 ; compressed horizontally by a factor of 5/8

notka56 [123]

Answer:

yes?

Step-by-step explanation:

7 0

3 years ago

In a function, every output value corresponds to exactly one input value true or false

svet-max [94.6K]

It Is True . For A Function Each Input Should Only Have One OutPut . Example ❤️ : Input | Output 01 | 05 02. | 08 03. | 06 It Wouldn't Be A Function If The Input Had Repeated Example ❤️ : Input | Output 07. | 03 09. | 01 09. | 12 03. | 02

6 0

3 years ago