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2 years ago

14

2 ⋅ √ 2 + √ 8 - simplify

2 answers:

Ivanshal [37]2 years ago

6 0

Answer:

$4\sqrt2$

Step-by-step explanation:

$2\sqrt{2} +\sqrt{8}=2\sqrt{2}+2\sqrt{2}=4\sqrt{2}$

8090 [49]2 years ago

3 0

Step-by-step explanation:

i sent the solution in the photo pls check it

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A six-pack of soda costs $1.69, a 12-pack of soda costs $3.99, and a 24-pack of soda costs $5.90. Which pack was the best deal?

navik [9.2K]

Answer:

The 24 because it is suposed to cost 6.76 and it cost 5.90.

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3 years ago

Based on a study of population projections for 2000 to 2050, the projected population of a group of people (in millions) can b

Olegator [25]

Answer:

(a) 0.107 million per year

(b) 0.114 million per year

Step-by-step explanation:

$A(t) = 11.19(1.009)^t$

(a) The average rate of change between 2000 and 2014 is determined by dividing the difference in the populations in the two years by the number of years. In the year 2000, $t=0$ and in 2014, $t=14$ . Mathematically,

$\text{Rate}=\dfrac{A(2014) - A(2000)}{2014-2000}=\dfrac{11.19(1.009)^14-11.19(1.009)^0} {14}$

$A(0)=\dfrac{12.69-11.19}{14}=\dfrac{1.5}{14}=0.107$

(b) The instantaneous rate of change is determined by finding the differential derivative at that year.

The result of differentiating functions of the firm $y=a^x$ (where $a$ is a constant) is $\dfrac{dy}{dx}=a^x\ln a$ . Let's use in this in finding the derivative of $A(t)$ .

$A\prime(t) = \dfrac{A}{t}=11.19\cdot1.009^t\ln1.009$

In the year 2014, $t=14$ .

$A\prime(14) =11.19\cdot1.009^14\ln1.009=0.114$

6 0

3 years ago

Write an algebrale expression for the phrase "elghe more than three times a<br> number

gavmur [86]

x 3

Step-by-step explanation:

5 0

3 years ago

A line with a slope of 3 passes through the points (-8,f) and (-9,7). What is the value of f

larisa [96]

Answer:

Step-by-step explanation:

Slope can be calculated by:

$m = \frac{y_2-y_1}{x_2-x_1}$

We know M, y1, x2, and x1. We want to calculate for y2

$\frac{f-7}{-8-(-9)} = 3\\\frac{f-7}{1} = 3\\f-7 = 3\\f = 10\\$

3 0

3 years ago

Read 2 more answers

let A = R .suppose R is the relation on A DEFINED by aRb if and only if a >= b . Determine if R is a partial order.

liberstina [14]

Answer:

R is a partial order

Step-by-step explanation:

The relation is reflexive

That is to say, aRa

$a\geq a \; \forall a \in \mathbb{R}$

The relation is antisymmetric, if aRb and bRa, then a=b

$(a\geq b)\land (b\geq a) \Rightarrow a=b$

The relation is transitive, if aRb and bRc, then aRc

$(a\geq b)\land (b\geq c) \Rightarrow a \geq c$

6 0

4 years ago