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
8090 [49]
3 years ago
5

The estimate of 6.8×2.3

Mathematics
2 answers:
zhuklara [117]3 years ago
6 0
7 x 2 = 14
6.8 x 2.3 = 15.64
steposvetlana [31]3 years ago
5 0
The estimate is about 15.60
You might be interested in
What is the answer to <br> x=3x-20 and y=-6+30
NISA [10]

Answer:y=24 and x=10

Step-by-step explanation:

To find the value of x and y in x=3x-20 and y=-6+30

We gets

y=24

To get x

x=3x-20

Collect like terms

x-3x=-20

Divide through by -2

-2x=-20

x=10

5 0
3 years ago
If f(x) = -3x - 5 and g(x) = 4x - 2, find (f+ g)(x).
STALIN [3.7K]

Answer:

-40x

Step-by-step explanation:

f(x) =-3x-5

g(x) =4x-2

(f+g)(x) =?

now,

f(g(x))

=f(4x-2)

=-3×4x-2-5

=-10×4x

=-40x

7 0
2 years ago
A star is a swirling mass of dense gases powered by thermonuclear reactions. The great solar furnace transforms 7 million tons o
marta [7]

Answer:

2.20752 x 10^{24}

Step-by-step explanation:

The first thing you have to do is to look for the number of seconds in one year. You have to multiply 365 days by 86,400 seconds.

  • 365 days refer to the total number of days per year
  • 86,400 seconds refer to the number of seconds per day

Let's solve.

  • 365 x 86,400 = 31,536,000 or 3.1536 x 10^{7}

<em>Therefore, one year has 3.1536 x </em>10^{7}<em> seconds.</em>

Next, you have to know the number of seconds in 10 billion years.

  • (3.1536 x 10^{7}) x  (1.0 x 10^{10}) = 3.1536 x 10^{17}

The last step is to multiply the number of seconds in 10 billion years to 7 million tons of mass per second.

  • (3.1536 x 10^{17}) x 7,000,000 = 2.20752 x 10^{24}
6 0
2 years ago
What is the equation of the graphed line written in standard form?
Leno4ka [110]

Answer:

x= -3

Step-by-step explanation:

x equals to -3 is the standard form

5 0
3 years ago
Read 2 more answers
What is the surface area of the composite figure
leva [86]

Answer:

The answer is 672.

Step-by-step explanation:

To solve this problem, first let's find the surface area of the rectangular prism. To do that, multiply each dimension with each (times 2 | just in case you don't understand [what I'm talking about is down below]).

8 x 8 x 2 = 128

8 x 11 x 2 = 176

8 x 11 x 2 = 176

Then, add of the products together to find the surface area of the rectangular prism.

176 + 176 + 128 = 480

Now, let's find the surface area of the square pyramid. Now, for this particular pyramid, let's deal with the triangles first, then the square. Like we did with the rectangular prism above, multiply each dimension with each other (but dividing the product by 2 | in case you don't understand [what i'm talking about is down below]).

8 x 8 = 64.

64 ÷ 2 = 32.

SInce there are 4 triangles, multiply the quotient by 4 to find the surface area of the total number of triangles (what i'm talking about is down below).

32 x 4 = 128.

Now, let's tackle the square. All you have to do is find the area of the square.

8 x 8 = 64.

To find the surface area of the total square pyramid, add both surface areas.

128 + 64 = 192.

Finally, add both surface areas of the two 3-D shapes to find the surface area of the composite figure.

192 + 480 = 672.

Therefore, 672 is the answer.

6 0
3 years ago
Other questions:
  • Archbridge Bus Company have a very small road on the exit of their bus garage. This means they need to be aware of when this roa
    6·1 answer
  • Subtracting integers is the same as adding what?
    13·2 answers
  • If two lines are parallel to the same line, then they are _____
    13·2 answers
  • Solve for x.
    6·1 answer
  • Please help it an emergency and I give Brainiest.
    14·2 answers
  • Ezzzzzzzzzzzzzzy points
    5·1 answer
  • Solve - 4x + 2 2 26.<br> O A. X&gt;6<br> O B. X&lt;6<br> O C. X&gt;6<br> O D. X&lt;-6
    6·1 answer
  • What is the value of x?<br><br> Enter your answer in the box.
    15·1 answer
  • Your home was built 5 years ago, and there were three ants. The ant population grows in such a way that each year the number of
    6·1 answer
  • mr. salmon is getting pool ready for summer. The pool liner had some holes in it, so he decides to replace it. In order to repla
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!