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3 years ago

Please answer 1 and 2 and if you can explain!!! i need help asap i’ll mark brainliest!!!

Mathematics

1 answer:

boyakko [2]3 years ago

7 0

Answer:

1) A.

2) No

Step-by-step explanation:

1 is A because the shaded line extends over numbers greater than -8 but less than -1. The reason it is greater than or EQUAL to -1 is because the dot above -1 is shaded in.

2 is No because in order to solve this equation, you plug in the numbers from the coordinates into the inequality. An ordered pair is always structured as (x,y), so in this case x = -1 and y = 4. To solve, the first step is to plug the numbers in, and you end up with 4< 2(-1) +5.

Then, simplify by adding and multiplying as needed. Now you will end up with 4<-2 +5. Simplify again. Finally you end up with 4<3. The reason the answer is NO, not a solution is because the statement '4<3' (four is less than three) is false. if the equation had ended up being 4>3, then it would have been true.

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A square pyramid is shown below:

madreJ [45]

Let Surface Area A, a the base edge and h the height:

A = a²+2a√(a²/4+h²)

h=?

pythagorean theorem:

h²=c²-a²

h=√(c²-a²)

h=√(8²-(.7/2)²)= 8

plug it in the above equation A= 11.7ft²

So A is correct

8 0

4 years ago

Read 2 more answers

Determine the equation of the line that is parallel to the given line, through the given point

bixtya [17]

The equation of the line that is parallel to the given line, through the given point is y = -5x - 7

Given equation,

y = -5x + 1

Slope = m

= -5

For two lines to be parallel, slope is equal.

Therefore, m = -5 for another line.

Let the equation of the line be y = mx + c

This line passes through A(-2,3)

Therefore, 3 = -5(-2) + c

3 = 10 + c

c = 3 - 10

= -7

Hence, equation of line is y = -5x - 7.

To learn more about equation of the line here:

brainly.com/question/21511618

#SPJ1

8 0

1 year ago

Solve the equation 2 cos x + 1 = 0 , 0 <= x <= 2pi PLEASE HELP! WILL AWARD!

Keith_Richards [23]

It would be pi over 6, 5 pi over 6, and 3 pi over 6.

6 0

3 years ago

Read 2 more answers

You are seeking to be emancipated from your parents. You are

FromTheMoon [43]

It will take 20 months for the cost to be same.

Step-by-step explanation:

Apartment A;

Security deposit = $1000

Each month cost = $1200

Let,

x be the number of months.

A(x) = 1000 + 1200x

Apartment B;

Security deposit = $1500

Each month cost = $1175

B(x) = 1500 + 1175x

The cost will be same when the functions are equal, therefore,

A(x) = B(x)

$1000+1200x=1500+1175x\\1200x-1175x=1500-1000\\25x=500$

Dividing both sides by 25

$\frac{25x}{25}=\frac{500}{25}\\x=20$

It will take 20 months for the cost to be same.

Keywords: function, division

Learn more about functions at:

#LearnwithBrainly

5 0

3 years ago

I need the assistance of smarter beings than I..... I'm so lost.....

alukav5142 [94]

Answer:

$\sf \bold{ 1 * (-3)^{n-1}}$

Explanation:

first term, a₁ = 1

difference between the terms: -3

used geometric formula : $\bold{\sf a_1 * (r)^{n-1}}$

<u>where "a₁ is first term" and "r refers to common difference"</u>

formula for this nth term: $\sf \bold{ 1 * (-3)^{n-1}}$

4 0

2 years ago