All categories

3 years ago

Evaluate the expression! 5 + (-1) • 12 ÷ 4

Mathematics

1 answer:

galben [10]3 years ago

4 0

Answer:

Step-by-step explanation:

First, according to PEMDAS or PEMA, we do multiplication and then division so:
$-1*12$

which equals to

$-12$

and then we have $-12/4$

which equals to $-3$

then, we do addition, so

$5+(-3) =\\5-3=\\2$

And we have 2 as our answer.

Hope this helped :)

You might be interested in

Can someone please help me with math

allsm [11]

Answer:

the answer is D

Step-by-step explanation:

the graph has a negative correlation

5 0

3 years ago

How do i add and subtract polynomials?<br>(4v-6v)-(v-5v^3)+(5v^3+4)

Ksenya-84 [330]

Distribute and add like terms and you are good

alirghty

we can make it easier by simplifying what we can

(4v-6v)=-2v so

(-2v)-1(v-5v³)+(5v³+3)=
-2v-v+5v³+5v³+3=
10v³-3v+3

7 0

3 years ago

Suppose that P(n) is a propositional function. Determine for which improper subset of the domain of n the statement P(n) must be

Alinara [238K]

Answer:

a) P(n) is true for all 'n' in the set ; { 0,2,4,6,8 ….. }

b) P(n) is true for all 'n' in the set ; { 0,1,2,3,4,5 ............ }

Step-by-step explanation:

a) As P(0) is true

we will assume that

P(2) is true
P(4) is true
P(6) is true

this simply means that ; P(n) is true for all 'n' in the set

{ 0,2,4,6,8 ….. }

b) since P(0) and P(1) are true

we will assume that

P( 0+2 ) = P(2) is true

also P(1) and P(2) are true

we will assume that

P(1+2) = P(3) is true

Also from the previous answers it can be seen that P(2) + P(3) is true

we will assume

P(2+2) = P(4) is true

This simply means that P(n) is true for all 'n' in the set

{ 0,1,2,3,4,5 ............ }

8 0

3 years ago

7) Alicia has a board game that is 18 inches wide and 18 inches long.

zysi [14]

Answer:

324 inches

Step-by-step explanation:

18 x 18 or 18² is 324

7 0

3 years ago

Read 2 more answers

New streetlights will be installed along a section of the highway. The posts for the streetlights will be 7.5 m tall and made of

SIZIF [17.4K]

First, we determine the volumes of the posts may it be cylindrical in shape or rectangular prism.

(A) cylindrical:
( π(26.7/100)² - π(24.2/100)²)*(7.5) = 0.3 m³
(B) rectangular prism:
(40/100)²(7.5) - (35/100)²(7.5) = 0.28125 m³

Then, we calculate for the amount of substance
(A) cylindrical: (0.3 m³)(2700 kg/m³) = 810 kg
(B) rectangular prism : (0.28125 m³)(2700 kg/m³) = 759.375 kg

Then, calculate for the costs
(A) (810 kg)($0.38/kg) = $307.8
(B) (759.375 kg)($0.38/kg) = $288.56

Thus, the answer for A is rectangular post
B. About $19.24 can be saved.

6 0

3 years ago