The number of hours a group of 12 children in Mrs. Smith's kindergarten class read in a day.

Select the correct answer.

Afina-wow [57]

Answer:

$d)\ \frac{81}{m^{7}}$

Step-by-step explanation:

$(3m^-4)^3(3m^5)$

First, simplify $(3m^{-4})^3$ :

$(3m^{-4})^3\\\\3^3*m^{-4*3}\\\\27m^{-12}$

$27m^{-12}*3m^5\\\\27*3 *m^{-12+5}\\\\81m^{-7}\\\\81*\frac{1}{m^{7}} \\\\\frac{81}{m^{7}}$

Hope this helps!

5 0

2 years ago

Translate each of these statements into logical expressions by using quatifiers and predicates with one or two variables. (a) A

nikdorinn [45]

Answer:

a) $A = \{\exists x \in M, \exist y \in U\,|\,xGy \}$ , b) $B = \{\exists x \in M,\,\exists y \in H\,|\,xMy \}$ , c) $C = \{\forall x \in M\,|\,xI \}$ , d) $D = \{\exists x \in M,\,\forall y \in U\,|\,xJy \}$ , e) $E = \{\exists x \in M, \forall y \in V, V \subseteq U\,|\,xJy \}$

Step-by-step explanation:

a) x - A student, M - Set of students of discrete math class, G - has lived in, y - Florida, U - Set of states of the United States of America.

$A = \{\exists x \in M, \exist y \in U\,|\,xGy \}$

b) x - A student, M - Set of students of discrete math class, y - A perfect grade, H - Midterm I.

$B = \{\exists x \in M,\,\exists y \in H\,|\,xMy \}$

c) x - A student, M - Set of students of discrete math class, I - loves discrete math.

$C = \{\forall x \in M\,|\,xI \}$

d) x - A student, M - Set of students of discrete math class, J - has been in, y - a state, U - Set of states of the United States of America.

$D = \{\exists x \in M,\,\forall y \in U\,|\,xJy \}$

e) x - A student, M - Set of students of discrete math class, J - has been in, y - a city, V - At least one state of the United States of America, U - Set of states of the United States of America.

$E = \{\exists x \in M, \forall y \in V, V \subseteq U\,|\,xJy \}$

5 0

3 years ago

What is the answer to this question

Soloha48 [4]

(0,2),(-2,-1),(2,5)

-3x+2y=2

+3x +3x

2y/2=3x+2/2

y=1 1/2x+2

Plug in numbers for x then solve for y

7 0

3 years ago

Michael has $1.95 totally in his collection, consisting of quarters and nickels. The number of nickels is three more than the nu

madreJ [45]

6 quarters = $1.50
9 Nickels = $0.45

Total= $1.95

Answer is 6 quarters and 9 nickels.<span />

4 0

3 years ago

Read 2 more answers

A boat travels at a speed of 20 miles per hour in still water. It travels 48 miles upstream, and then returns to the starting po

Zanzabum

Answer:

pepepopo

Step-by-step explanation:

ubsbsvxvxvxvxvxb b

red

<em> $2216 \times x6 \sqrt[2 { \times y + 21 - 6 = 45022y82412. {9 {?}^{?} }^{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} \times \frac{?}{?} x \times = \sqrt[1 \times { < 0}^{ \: m} ]{?} \times \frac{?}{?} \times \frac{?}{?} }^{?} ]{?}$ </em>

3 0

4 years ago