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3 years ago

10

What is a simplified expression for (x + y)-(x + y)?

1 answer:

Evgesh-ka [11]3 years ago

5 0

Answer:

0

Step-by-step explanation:

(x + y)-(x + y)

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If the sin 90° is 1, then the cos ____ °= _____

lorasvet [3.4K]

That sentence is confusing...

That sentence is confusing...
There is no logical relationship between the prepositions.
You can put any angle and its cosine there.
You can put, for example:

Cos(90)=0 or Cos(0)=1... Both are correct options...

If your teacher wrote that, he doesn't know to write very good...

Good luck!
M.

7 0

3 years ago

(e) The number of bees spotted in Amelie's garden can also be modeled by the function B(x) = 50√ k + 2x where x is the daily hig

Lunna [17]

Answer:

$\frac{dB}{dt}=4$

Step-by-step explanation:

Derivative indicates rate of change of dependent variable with respect to independent variables. It indicates the slope of a line that is tangent to the curve at the specific point.

Given:

Number of bees is modeled by the function $B(x)=50\sqrt{k}+2x$

The daily high temperature is increasing at a rate of 2 °F per day when the number of bees spotted is 100.

To find:

rate of change of number of bees when 100 bees are spotted

Solution:

$B(x)=50\sqrt{k}+2x$

Differentiate with respect to t,

$\frac{dB}{dt}=0+2(\frac{dx}{dt}) \\\frac{dB}{dt}=2(\frac{dx}{dt}) \\$

Put $(\frac{dx}{dt}) =2$

$\frac{dB}{dt}=2(2)=4$

At x = 100, $\frac{dB}{dt}=4$

4 0

4 years ago

Brenda bought five hats. A week later half

VashaNatasha [74]

Answer:

Step-by-step explanation:

23 divided by X. X=half of 23. but really, you need to add to it. other than that i can't help ya, all i know is that half of 23 is 11.5

8 0

3 years ago

7th grade math pls help

leva [86]

Answer:

77

Step-by-step explanation:

308 divided by 4=77

4 sides

7 0

3 years ago

Plot the points (0, −5) and (2, 4) on the coordinate plane. PLZ B RIGHT I AM FAILING IN THIS SUBJECT, rEWARD WILL BE BRAINLIEST

natka813 [3]

Answer:

Step-by-step explanation:

Co-ordinate plane is a plane which is formed by a horizontal line called the x-axis and a vertical line which is called the y-axis.

The points on a co-ordinate plane is represented as:

$(x,y)$

where $x$ represents the $x-coordinate$ while $y$ represents the $y-coordinate$ .

To plot the points:

1) $(0,-5)$

For the point the $x-coordinate=0$ which means 0 on x-axis, and $y-coordinate=-5$ which means -5 units on y-axis.

2) $(2,4)$

For the point the $x-coordinate=2$ which means 2 units on x-axis, and $y-coordinate=4$ which means 4 units on y-axis.

4 0

4 years ago