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3 years ago

Please help 10 points

Mathematics

1 answer:

alexandr1967 [171]3 years ago

7 0

Answer:

80,160,320 is the answer

Step-by-step explanation:

you double each number as you go on

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bulgar [2K]

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3 years ago

The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and

lawyer [7]

Functions can be used to model real life situations.

The hose is 3.2 feet above the ground, at a horizontal distance of 4 fee

The function is given as:

$f(x) =-0.3x^2 + 2x$

At a horizontal distance of 4 feet, the value of x is 4

i.e. $x = 4$

Substitute 4 for x in f(x).

So, we have:

$f(4) =-0.3(4)^2 + 2(4)$

Evaluate the exponent

$f(4) =-0.3(16) + 2(4)$

Open both brackets

$f(4) =-4.8 + 8$

Add -4.8 and 8

$f(4) =3.2$

Hence, the hose is 3.2 feet above the ground

Read more about functions at:

brainly.com/question/10837575

7 0

3 years ago

Use the product of powers property to simplify the numeric expression.

motikmotik

Answer:

The value of $4^{\dfrac{1}{3}} {\cdot} 4^{\dfrac{1}{5}$ is $4^{\dfrac{8}{15}}$ .

Step-by-step explanation:

We need to simplify the numeric expression using property. The expression is as follows :

$4^{\dfrac{1}{3}} {\cdot} 4^{\dfrac{1}{5}$

The property to be used is : $x^a{\cdot} x^b=x^{a+b}$

This property is valid if the base is same. Here, base is x.

In this given problem, x = 4, a = 1/3 and b = 1/5

So,

$4^{\dfrac{1}{3}} {\cdot} 4^{\dfrac{1}{5}}=4^{\dfrac{1}{3}+\dfrac{1}{5}}\\\\=4^{\dfrac{5+3}{15}}\\\\=4^{\dfrac{8}{15}}$

So, the value of $4^{\dfrac{1}{3}} {\cdot} 4^{\dfrac{1}{5}$ is $4^{\dfrac{8}{15}}$ .

8 0

4 years ago

What are the two answers for x in decimal form? <br> 2x(x + 1.5) = -1

umka2103 [35]

Answer:

$x = - 1 \: and \: x = - 0.5$

Step-by-step explanation:

$2x(x + 1.5) = - 1 \\ 2x { }^{2} + 3x + 1 = 0 \\ (x + 1)(2x + 1) = 0 \\ x = - 1 \: and \: x = - 0.5$

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3 years ago

During a sale a store offered a 40% discount on a particular camera that was originally priced at $450. After the sale the disco

ddd [48]

During the sale,

   $450 x (100% - 40%)
   $450 x 60% =   450 x 0.6 = $270 = answer 1

After the sale,

   $270 x 1.4 = $378 = answer 2

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3 years ago