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
Softa [21]
2 years ago
13

25) 3 NaHCO3 Na H = C =_0 =

Mathematics
1 answer:
jeka57 [31]2 years ago
7 0
H=3. C=3 O= 9 the total is 18
You might be interested in
Write the slope-intercept form of the given line. Include your work in your final answer. Type your answer in the box provided o
kolbaska11 [484]
Answer: y = x -1

reasoning: the slope is 1 because the rise/run = 1/1, which simplifies to 1.
                 the y intercept is -1 because the line passes through the y axis at -1.

hope this helps!
8 0
3 years ago
Solve the following function for y when x=5 round to the nearest tenth
Wittaler [7]

In the given question , we have a function given , which is

y= 13(0.5^x)

And we need to find the value of y when x=5.

So we substitute 5 for x and solve for y, that is

y=13(0.5^5) = 0.40625

And on rounding to the nearest tenths, we will get

y=0.4

So when x=5, y=0.4

7 0
3 years ago
Which scatterplot(s) show a positive correlation A. Plot B B. Plot D. C. Plots A and C D. Plots A, C and D
adoni [48]
The anwser is a&c they go forward and up
3 0
3 years ago
Please help I will give 10 pt
Mrac [35]

The expressions 100×10 and the more complicated

(100 - 4a)(10 + a)

are calculating annual (expected) revenue.  In 100×10 the 100 is the number of decks and the 10 is the price per deck.  In (100 - 4a)(10 + a) the 100-4a is the number of decks and the 10+a is the price per deck.  So a must be the amount the price increases.

Answer: amount of price increase, last choice

4 0
3 years ago
Read 2 more answers
The bisector of one of the angles of a rectangle also bisects a side of the rectangle. Find the perimeter of the rectangle if yo
enot [183]
The answer is 60... Draw a rectangle. Now draw a line that splits the bottom left corner in two but also cuts the long side on the top in half. A rectangle has 4 right angles right? So the bisector, or a line that splits something in half, splits the right angle, a 90 degree angle, in half making it a 45 degree angle. Did you notice the bisector made a triangle?
A triangle has angle measures that always add up to 180 degrees. So you know that triangle has two angles: a 45 and 90 degree angle... Add those up and you get 135. 180-135 gives you the other angle: 45 degrees...
So you know that the triangle is a 45-45-90 triangle... The two legs or side lengths that I marked on the triangle with a small line are congruent in a 45-45-90 triangle and since the short leg of the rectangle is equal to 10cm and the split in half long side of the rectangle is also 10 which you double to 20. 20+20+10+10=60.
5 0
3 years ago
Other questions:
  • The function f(t) = −5t 2 + 20t + 60 models the approximate height of an object
    12·2 answers
  • At the instant the traffic light turns green, an automobile starts with a constant acceleration a of 2.70 m/s2. at the same inst
    6·1 answer
  • Which statement about the equation is true?
    8·2 answers
  • Help me Please!! Ive got a deadline!! Thanks! (:
    6·1 answer
  • Write a proportionality statement for the following triangles:
    9·1 answer
  • The diameter of a small gear is 16 cm this is 2.5 centimeters more than 1/4 of the diameter of a large clear what is the diamete
    11·1 answer
  • 2.85 rounded to the nearest hundreth
    15·2 answers
  • An audio books club charges an initial joining fee of $20.00. The cost per audio book is $15.00. The graph shows the cost of bel
    10·2 answers
  • acob wanted to buy some ice cream, but did not know what flavor to get so he asked Caitlyn to pick for him. The shop has 4 flavo
    13·1 answer
  • A car moving at a constant speed passed a timing device at t=0. After 9 ​seconds, the car has traveled 837 ft. Write a linear fu
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!