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zhannawk [14.2K]
3 years ago
13

Round to the nearest tenth (one decimal place)

Mathematics
1 answer:
Montano1993 [528]3 years ago
3 0

Answer:

b is 11 because x in the square root is 11

a is 22 because 11*2

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Have you ever been swimming in a pool, and your eyes were red when you get out? This means the chemicals in the pool were not ad
soldier1979 [14.2K]

pH = f(x) = -log₁₀x

1. Graphs

I used Excel to calculate the pH values and draw the graphs (see the Figure).

f(x) and f(x) +1 are plotted against the left-hand axis, while f(x+ 1) is plotted against the expanded right-hand axis.

The points at which pH = 0 and pH = 1 are indicated by the large red dots.

2. x = 0.5

When x = 0.5, pH ≈0.30. The point is indicated by the red diamond.

3. Transformations

(a) ƒ(x) = -log(x) + 1

This function has no y-intercept, because log(0) is undefined.

(b) ƒ(x +1) = -log(x + 1)

f(0) = -log(0 + 1) = -log(1) = 0

This function has a y-intercept at (0,0).

hope this helps please mark me brainliest!

3 0
3 years ago
Find the surface area of the composite figure.
ELEN [110]

Answer:

644cm^2

Step-by-step explanation:

First we'll work out the surface area of the pink figure.

That's the area of the two 5 by 6 rectangles on the top and bottom, plus the area of the two 5 by 20 and two 6 by 20 rectangles on the sides.

However, we note that the purple figure is blocking out a 6 by 12 section on the pink figure, so we'll need to subtract this.

The above works out to 2\times(30+100+120)-72=428 cm^2.

Then we'll work out the surface area of the purple figure.

This will be the area of the two 4 by 6 rectangles at the top and bottom, plus the area of the two 4 by 12 and one 6 by 12 rectangles on the sides. Note that there's only one 6 by 12 rectangle because the other face is joined to the pink figure, so it's blocked out.

That's 2\times(24+48)+72=216cm^2.

So the total surface area is 428+216=644cm^2.

6 0
2 years ago
The table shows the coordinates of four points on a line.
kondor19780726 [428]

Answer:f is slope

Step-by-step explanation:

6 0
3 years ago
Problem Page Donna had 2/7 acres of land. She planted 4/5 of it with corn. How many acres did she plant with corn?
Dafna11 [192]

Acres of planted corn = (2/7) * (4/5)

= (2/7) * .8 = 1.6 / 7 acres = 0.2285714286 acres


5 0
4 years ago
Write the percent as a fraction or mixed number in simplest form.<br><br> 0.8%
Oxana [17]

Answer:

4/5

Step-by-step explanation:

0.8 (to a fraction) 8/10

8/2=4

10/2=5

4/5

8 0
3 years ago
Read 2 more answers
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