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klasskru [66]
1 year ago
12

Solve negative four and one fifth ÷ two and one fourth.

Mathematics
1 answer:
goldfiish [28.3K]1 year ago
6 0

Answer:

  • B. negative one and 39 over 45

Step-by-step explanation:

Convert this into expression:

  • negative four and one fifth ÷ two and one fourth
  • - 4 1/5 ÷ 2 1/4

<h3>Step 1</h3>

Convert each to improper fraction:

  • - 4 1/5 = - 21/5
  • 2 1/4 = 9/4

<h3>Step 2</h3>

Divide the fractions:

- 21/5 ÷ 9/4  =

- 21/5 × 4/9 =

- 84 / 45 =

- 1 13/15

The matching choice is B.

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Given the following matrices, what 3 elements make up the first column of the product matrix DA?
Misha Larkins [42]

We have to figure out what the product of DA is,

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We know that,

\begin{bmatrix}a&b&c\\d&e&f\\g&h&i\\\end{bmatrix}\begin{bmatrix}x\\y\\z\\\end{bmatrix}=\begin{bmatrix}ax+by+cz\\dx+ey+fz\\gx+hy+iz\\\end{bmatrix}

So,

a=-1\cdot1+2\cdot3+3\cdot5=-1+6+15=20

b=8\cdot1+(-4)\cdot3+0\cdot5=8-12=-4

c=6\cdot1+7\cdot3+1\cdot5=6+21+5=32

So the solution is,

a,b,c=\boxed{20,-4,32}

Hope this helps :)

4 0
3 years ago
The graph of function f(x) = √|x − 5| − 2
Bingel [31]

Answer:

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7 0
3 years ago
Question 2
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Answer:

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Step-by-step explanation:

Given that :

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Probability of purchasing vanilla ; p(vanilla) = 2/5 = 0.4

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