answer.
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
V125BC [204]
2 years ago
7

A group of astronomers observed light coming from a star located a distance of 331,000,000,000,000,000,000,000,000 light-years f

rom Earth. What is this distance expressed in scientific notation?
Mathematics
2 answers:
Nikitich [7]2 years ago
8 0
3.31 x 10^26 im pretty sure
Anika [276]2 years ago
5 0
3.31 times 10 to the 26th power
You might be interested in
Which is equivalent toStartRoot 10 EndRoot Superscript three-fourths x ?
bagirrra123 [75]

Answer:

4

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
In a necklace the ratio of yellow beads to blue beads is 3:1. What percentage of beads are yellow?
navik [9.2K]
3 yellow beads and 1 blue bead
4 0
2 years ago
Read 2 more answers
a model car is one tenth of the size of the real car the models measures 42cm longs what the length of length of the real car
trapecia [35]
Just multiply 42 by 10 and that gives you 420 , so the real car has a length of 420cm or 4.2 metres :)
8 0
2 years ago
Read 2 more answers
Which hyperbola has one focus point in common with the hyperbola (y+11)^2/(15^2)-(x-7)^2/(8^2)=1
irina [24]
\bf \textit{hyperbolas, vertical traverse axis }\\\\
\cfrac{(y-{{ k}})^2}{{{ a}}^2}-\cfrac{(x-{{ h}})^2}{{{ b}}^2}=1
\qquad 
\begin{cases}
center\ ({{ h}},{{ k}})\\
vertices\ ({{ h}}, {{ k}}\pm a)
\end{cases}\\\\
-------------------------------\\\\
\cfrac{(y+11)^2}{15^2}-\cfrac{(x-7)^2}{8^2}=1\implies \cfrac{(y-(-11))^2}{15^2}-\cfrac{(x-7)^2}{8^2}=1\\\\
-------------------------------\\\\
c=\textit{distance from the center to either foci}\\\\
c=\sqrt{a^2+b^2}\implies c=\sqrt{15^2+8^2}\implies \boxed{c=17}

now, if you notice, the positive fraction, is the one with the "y" variable, and that simply means, the hyperbola traverse axis is over the y-axis, so it more or less looks like the picture below.

now, from the hyperbola form, we can see the center is at (7, -11), and that the "c" distance is 17.

so, from -11 over the y-axis, we move Up and Down 17 units to get the foci, which will put them at (7, -11-17) or (7, -28) and (7 , -11+17) or (7, 6)

5 0
2 years ago
Read 2 more answers
In △XYZ, m∠Z = 34, x = 61 cm, and z = 42 cm. Find m∠X. Round your answer to the nearest tenth of a degree.
Elza [17]
M∠X = 54.3°.

Using the Law of Sines, we have:
\frac{\sin{Z}}{z}=\frac{\sin{X}}{x}
\\
\\\frac{\sin{34}}{42}=\frac{\sin{X}}{61}

Cross multiplying gives us
61(sin 34) = 42(sin X)

Divide both sides by 42:
(61(sin 34))/42 = (42(sin X))/42
(61(sin 34))/42 = sin X

Take the inverse sine of both sides:
sin⁻¹((61(sin 34))/42) = sin⁻¹(sin X)
54.3 = X
8 0
2 years ago
Other questions:
  • The speed of the international space station is 27,576 kilometres per hour.
    9·1 answer
  • A cosmetic company tested a new lotion. Of the 2,500 people tested 15 had an allergic reaction. What percentage of the people ha
    6·2 answers
  • What is the point of intersection when the system of equations below is graphed on the coordinate plane? (1, –3) (–1, 3) (1, 3)
    14·2 answers
  • ANSWER ALL 5 PARTS.
    7·1 answer
  • Hannah's school hosted a book donation. There are 150 students at her school, and they donated a total of b books! Hannah donate
    10·1 answer
  • At Deb’s Deli, a customer may choose either a sandwich and a salad or a sandwich and a soup for the lunch special. There are 5 c
    10·1 answer
  • Which represents the solution set of the inequality 5 x minus 9 less-than-or-equal-to 21
    12·2 answers
  • The manufacturer of a certain type of new cell phone battery claims that the average life span of the batteries is 500 charges;
    14·1 answer
  • Abdullah is a quality control expert at a factory that paints car parts. He knows that 20\ , percent of parts have an error in t
    15·1 answer
  • PLEASE HELP!!! (two questions, will give brainliest for best answer)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!