1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anna35 [415]
2 years ago
12

Which expression has a negative value?

Mathematics
2 answers:
Igoryamba2 years ago
3 0

Answer:

A: 7 + 3 (negative 4) (2)

Step-by-step explanation:

Just as a rule of thumb, whenever you multiply or divide one negative number and one positive number, the outcome is always negative. However, whenever you multiply or divide two negative numbers OR two positive numbers, the outcome is always positive.

Now, let's first convert all these words into simple mathematical expressions and then solve them:

A) "7 + 3 (negative 4) (2)" = 7 + 3 * (-4) * 2 = 7 + (-24) = -17

B) "Negative 2 Left-bracket 12 divided by (negative 3) Right-bracket" =

-2 * [12/(-3)] = -2 * (-4) = 8

C) "(15 minus 7) minus (9 divided by 3)" = (15 - 7) - (9/3) = 8 - 3 = 5

D) "Negative 5 Left-bracket 7 + (negative 14) Right-bracket minus 30" =

-5 * [7 + (-14)] - 30 = -5 * (-7) - 30 = 35 - 30 = 5

The only expression that produces a negative value is the first one, A.

Hope this helps!

vredina [299]2 years ago
3 0

Answer:

First one

Step-by-step explanation:

7 + 3 (negative 4) (2)

7 + 3(-4)(2)

7 - 24

= -17

Negative 2 Left-bracket 12 divided by (negative 3) Right-bracket

-2(12/-3)

-2 × -4

8

(15 minus 7) minus (9 divided by 3)

(15 - 7) - (9/3)

8 - 3

5

Negative 5 Left-bracket 7 + (negative 14) Right-bracket minus 30

-5(7 + -14) - 30

-5(-7) - 30

35 - 30

5

You might be interested in
10 points What is the difference of the two polynomials? * (9x2 + 8x) - (2x2 + 3x) 7x² + 5x 7x² + 11x Option 1 Option 2 h 11x² +
Blizzard [7]

Answer:

The answer to your question is 7x2+5x

Step-by-step explanation:

4 0
3 years ago
Some one help me with this please
Klio2033 [76]
I believe it is C, not 101% positive, but I think it is C
6 0
3 years ago
Enter your answer in scientific notation
Oxana [17]

It takes 1.7 x 10 ^4 for light from the sun to reach the comet.

<h3>How do scientific notations work?</h3>

The number is written in the form  a \times 10^b where we have 1 \leq a < 10

Scientific notations have some of the profits as:

Better readability due to compact representation

Its value in terms of the power of 10 is known, which helps in the easy comparison of quantities differing by a large value.

A comet is about  5.1 \times 10 ^9 km from the sun.

Light travels at about 3.0 \times 10 ^5 km per second.

\dfrac{5.1 \times 10 ^9}{3.0 \times 10 ^5}

= 1.7 \times 10 ^4

Hence, It takes 1.7 x 10 ^4 for light from the sun to reach the comet.

Learn more about scientific notation here:

brainly.com/question/3112062

#SPJ1

4 0
2 years ago
Can some help me please.........
bezimeni [28]

Answer:

C

Step-by-step explanation:

Bc i'm smart and i know things

4 0
3 years ago
TRUE OR FALSE: DEFG is definitely a parallelogram.
LiRa [457]

Answer:

true

Step-by-step explanation:

ed and fg are parallel

6 0
2 years ago
Other questions:
  • On a 15 hour trip, Rob drove 35% of the time and Mark drove the remainder of the time. How many hours did Mark drive? Explain 9.
    5·1 answer
  • Describe how you would use a yardstick to measure a length of a rug
    5·1 answer
  • What is 3 and 8 tenths as a decimal
    12·1 answer
  • The area of circle can be expressed by the formula A = πr2where r is a radius of circle. express radius in terms of area of circ
    5·1 answer
  • Help me please and thank you
    11·1 answer
  • Anybody know this one? I was leaning towards D but not sure
    5·1 answer
  • I need help very fast please!
    14·2 answers
  • Angles: Arcs &amp; Angles need help thank you!!
    6·1 answer
  • Irri is traveling in a group of 888 cat warriors. Each cat needs 444 liters of milk per day to maintain good morale. Mirri has a
    14·1 answer
  • Find the explicit formula for the given sequence.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!