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Norma-Jean [14]
4 years ago
10

Help me with number nine please it's for my homework.

Mathematics
1 answer:
TiliK225 [7]4 years ago
6 0
D, because in a 45, 45, 90 triangle the hypotenuse is equal to one leg times the square root of two.
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liraira [26]

Answer:

mustard

Step-by-step explanation:

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5 0
3 years ago
Read 2 more answers
Herb has sold 93, 30, 138 and 61 copiers in the last
luda_lava [24]

Answer:

73

Step-by-step explanation:

Mean is the number of copiers combined / number of months

79 * 5 = 395

93 + 30 + 138 + 61 = 322

395 - 322 = 73

3 0
4 years ago
Another way to write 1/2
earnstyle [38]
½=0.5.................
3 0
4 years ago
Read 2 more answers
A bag of chips costs $3.79, including tax. Mr. Connor wants to purchase chips for his class and has a $15 budget. Write an inequ
Verizon [17]

Answer:

D. $3.79x \leq $15

<em>Brainliest, please!</em>

Step-by-step explanation:

It costs $3.79 per bag of chips, and Mr. Connor can pay NO MORE THAN $15.

6 0
3 years ago
Read 2 more answers
What is the quadratic regression equation for the data set? ​ ​ ​ <br><br> PLEASEE HELP ME
Soloha48 [4]
You're trying to find constants a_0,a_1,a_2 such that \hat y=a_0+a_1\hat x+a_2{\hat x}^2. Equivalently, you're looking for the least-square solution to the following matrix equation.


\underbrace{\begin{bmatrix}1&6&6^2\\1&3&3^2\\\vdots&\vdots&\vdots\\1&9&9^2\end{bmatrix}}_{\mathbf A}\underbrace{\begin{bmatrix}a_0\\a_1\\a_2\end{bmatrix}}_{\mathbf x}=\underbrace{\begin{bmatrix}100\\110\\\vdots\\70\end{bmatrix}}_{\mathbf b}

To solve \mathbf{Ax}=\mathbf b, multiply both sides by the transpose of \mathbf A, which introduces an invertible square matrix on the LHS.

\mathbf{Ax}=\mathbf b\implies\mathbf A^\top\mathbf{Ax}=\mathbf A^\top\mathbf b\implies\mathbf x=(\mathbf A^\top\mathbf A)^{-1}\mathbf A^\top\mathbf b

Computing this, you'd find that

\mathbf x=\begin{bmatrix}a_0\\a_1\\a_2\end{bmatrix}\approx\begin{bmatrix}121.119\\-3.786\\-0.175\end{bmatrix}

which means the first choice is correct.
8 0
4 years ago
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