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
Tema [17]
2 years ago
15

How might we know whether X is a positive number negative number or 0 without solving the equation 5x=-16.5

Mathematics
1 answer:
Taya2010 [7]2 years ago
8 0

Answer:

Since 16.5 is negative, the only way to get that answer is to multiply 5 by something to negative(x)

Step-by-step explanation:

You might be interested in
6n- 15 = 6(5)? – 15<br> =
kozerog [31]

Answer:

what

j

Step-by-step explanation:

8 0
2 years ago
A cylindrical well has a radius of 8 feet and a height of 13 feet what is the volume of the well use 3.14 for pie round your ans
vitfil [10]
To find the volume of a cylinder, you use this formula:
V = \pir^{2}h

Plug in your numbers,
V = (3.14 * 8^{2}) * 13

Exponents:
V = (3.14 * 64) * 13

Parentheses:
V = 200.96 * 13

Multiply:
V = 2612.48ft^{2}
8 0
3 years ago
Find the angle between the given vector in degrees. u=&lt;6, 4&gt;, v=&lt;7, 5&gt; HELPPPPPPPPPP
Paladinen [302]

Recall that

\vec a\cdot\vec b=\|\vec a\|\|\vec b\|\cos\theta

where \theta is the angle between the vectors \vec a,\vec b whose magnitudes are \|\vec a\|,\|\vec b\|, respectively.

We have

\langle6,4\rangle\cdot\langle7,5\rangle=\sqrt{6^2+4^2}\sqrt{7^2+5^2}\cos\theta

\cos\theta=\dfrac{31}{\sqrt{962}}\implies\theta\approx88.2^\circ

7 0
2 years ago
Simplify the expression(a4−6a2b2+ b4)−(−2a4+5a2b2+ 3b4) and hence, find its value for a = 2and b = −1.
ELEN [110]

Answer:

(a) 3a^4 - 11a^2b^2 -2b^4

(b) 3a^4 - 11a^2b^2 -2b^4= 2

Step-by-step explanation:

Given

(a^4 - 6a^2b^2+ b^4) - (-2a^4+5a^2b^2+ 3b^4)

Solving (a): Simplify

(a^4 - 6a^2b^2+ b^4) - (-2a^4+5a^2b^2+ 3b^4)

Open brackets

a^4 - 6a^2b^2+ b^4 +2a^4-5a^2b^2- 3b^4

Collect Like Terms

a^4 +2a^4- 6a^2b^2-5a^2b^2+ b^4 - 3b^4

Simplify Like Terms

3a^4 - 11a^2b^2 -2b^4

Solving (b): Simplify when a = 2 and b = -1

3a^4 - 11a^2b^2 -2b^4

3*(2)^4 - 11*(2^2)*(-1)^2 -2*(-1)^4

3 * 16 - 11 * 4 * 1 - 2 * 1

48 - 44 - 2

= 2

Hence:

3a^4 - 11a^2b^2 -2b^4= 2

4 0
2 years ago
Below are two parallel lines with a third line intersecting them.
Korolek [52]

Answer:

x=88

Step-by-step explanation:

That third line is a transversal, making 92 and x supplementary to each other.

92+x=180

x=88

3 0
3 years ago
Read 2 more answers
Other questions:
  • Solve for y if : x=3 y= 5x+8
    5·1 answer
  • Owen uses colored pencils on his homework assignment.
    7·2 answers
  • Please use method of substitution numbers 9;10;11;12
    6·1 answer
  • Dave found that about 8/9 of the students in his class have a cell phone. What percent of the students in his class do not have
    8·2 answers
  • The graph shows the number of miles traveled by a train over a 5 hour trip.
    8·1 answer
  • 42x+45=56z<br> 43x+56=34z
    15·1 answer
  • The hanger image below represents a balanced equation.
    9·2 answers
  • Javier asks his mother how old a tree in their yard is. His mother says, “The sum of 10 and two-thirds of that tree’s age, in ye
    13·2 answers
  • What are the domain and range of this relationship?
    7·1 answer
  • Please help me with this it is hard for me but not for my seniors First person with correct answer gets Brainliest answer.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!