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3 years ago

I need help on this question: Identify the bases and faces of each figure. Then name the figure

Mathematics

1 answer:

noname [10]3 years ago

3 0

Answer:

thsrtgfdgfdg

Step-by-step explanation:

gfhgdfhfdhdfhdfg

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Cos 90 - 2sin45 + 2tan180

riadik2000 [5.3K]

Answer:

- $\sqrt{2}$

Step-by-step explanation:

cos90° - 2sin45° + 2tan180°

= 0 - ( 2 × $\frac{\sqrt{2} }{2}$ ) + 2(0)

= 0 - $\sqrt{2}$ + 0

= - $\sqrt{2}$

4 0

1 year ago

How do you give BRAINLYIST for mathematics

Sergeu [11.5K]

You have to wait until 2 people answer the question and then go back to your question and there will be a button above both answers saying “mark as brainliest” and the click the button that’s above the answer that you want to mark

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2 years ago

Read 2 more answers

Which statement is true about exponential functions?

Lapatulllka [165]

First you have to sketch out the graph for both the exponential function and the logarithmic function.
Then you will see that the first statement and the second statement is incorrect
Hence the third statement is the correct statement where the x values of the logarithmic function are the y values of the exponential function.

5 0

2 years ago

.John has $40. He will use some of the money to buy books, and he wants to have at least $10 left to put in his savings account.

Crank

Answer:

The required inequality is $40-6b\leq 10$ .

Jhon can buy at most 5 books.

Step-by-step explanation:

Consider the provided information.

Part(A)

Let b represent the number of books John buys.

He wants at least $10 in his savings account which means if we subtract the cost of books from $40 we have at least $10 left.

$40-6b\leq 10$

The required inequality is $40-6b\leq 10$ .

Part(B)

$40-6b\leq 10$

$-6b\leq 10-40$

$b \leq\frac{30}{6}$

$b\leq 5$

Part(C): Jhon can buy at most 5 books.

3 0

3 years ago

Given the system

Irina-Kira [14]

we have

y > -2 x + y < 4

using a graph tool

see the attached figure

The shaded area is the solution of the system

Part 1) Name an ordered pair that is a solution to this system and explain how you know that this is a solution point

Let

A ( -40,20)

The point A is solution of the system because the point lie on the shaded area

Check

If the point A is solution of the system must satisfy both system inequalities

point A

x=-40

y=20

substitute

y > -2-------> 20 > -2-------> is ok

x + y < 4----> -40+20 < 4-----> -20 < 4-----> is ok

therefore

the answer Part 1) is

The point A is a solution of the system

Part 2) Name an ordered pair that is not a solution to the system and explain how you know that it is not a solution

Let

B(20,20)

The point B is not solution of the system because the point not lie on the shaded area

Check

If the point B is not solution of the system must not satisfy both system inequalities

point B

x=20

y=20

substitute

y > -2 -------> 20 > -2-------> is ok

x + y < 4---->20+20 < 4-----> 40 < 4------> is not ok

therefore

the answer part 2) is

The point B is not a solution to the system

6 0

3 years ago