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Salsk061 [2.6K]

2 years ago

13

The chart below shows the distribution of the number of books in a library.Sahira chooses a random sample from the library and r

ecords the type of books in the chart below.

1 answer:

nignag [31]2 years ago

5 0

Answer:

you have jbjhgbjhih7g6ginyfygino

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Sunny_sXe [5.5K]

Answer:

cosx = sqrt(15)/4, -sqrt(15)/4

Step-by-step explanation:

cos²x = 1 - sin²sin x

cos²x = 1 - (1/4)²

cos²x = 15/16

cosx = sqrt(15)/4, -sqrt(15)/4

5 0

3 years ago

Guys i need help please

klio [65]

I would help but I’m not sure how, please do not press that link or else it will track your address! <33

5 0

2 years ago

Determine the value(s) of h such that the matrix is the augmented matrix of a consistent linear system. [Start 2 By 3 Matrix 1s

Leni [432]

Answer: h = 9

Step-by-step explanation: A system of linear equations is consistent when it has at least one solution.

The matrix given is:

$\left[\begin{array}{ccc}-15&21&h\\5&-7&-3\end{array}\right]$

Transform this matrix in a row-echelon form:

$\left[\begin{array}{ccc}-15&21&h\\5&-7&-3\end{array}\right]$ $R_{2} = 3R_{2}+R_{1}$ $\left[\begin{array}{ccc}-15&21&h\\0&0&-9+h\end{array}\right]$

For this row-echelon form to have solutions:

-9 + h = 0

h = 9

For this system to be consistent: h = 9.

3 0

3 years ago

Abe real estate is developing 15 solar homes per states. If the cost of each home is estimated at 80,000 what’s the projected co

Soloha48 [4]

Answer:

the Total cost= 1,200,000*number of states

Step-by-step explanation:

Given the cost of each home is $80,000

The number of homes per state are 15

The Total cost of the project is = (Total number of houses per state) * (cost of each house) * (the number of states).

Therefore the total cost =15*80000*Number of states.=1,200,000*number of states

3 0

3 years ago

I really need help with this equation as soon as possible :D

viktelen [127]

The subtraction sign in front of the second set of parenthesis changes the signs on the terms inside those parenthesis. So this could be rewritten as $x-3x^4+2x^2+x^3-4x^6$ . None of the exponents on the x are the same, so we will just express it in terms of descending powers of x. $-4x^6-3x^4+x^3+2x^2+x$ . This is also the same as $4x^6+3x^4-x^3-2x^2-x$ if you don't like to start with a negative. Either one is correct.

7 0

2 years ago