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3 years ago

Find the surface area of each figure to the nearest tenth.

Mathematics

1 answer:

astra-53 [7]3 years ago

5 0

The answer to the question is 48cm^2

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The diameter of a circle is 4 ft. Find its area to the nearest tenth.

daser333 [38]

Answer:

.09ft^2

Step-by-step explanation:

8 0

3 years ago

Help I need one more number but I have no clue what it is!!!!!!!!!!!!!

VARVARA [1.3K]

Answer:

The point of intersection with the x axis are (-2,0) and (8,0)

Step-by-step explanation:

given circle equation x²+y² = 25

x² + y² = r²

r is the radius.

✓(25) = 5

given the center is at (3,0) and radius of 5

(3+5,0) and (3-5,0)

(8,0) and (-2,0)

(Please heart the answer if you find it helpful, it's a motivation for me to help more people)

7 0

3 years ago

Read 2 more answers

Logarithm 2. The alkalinity of a fluid (pH) can be modeled in terms of its hydrogen ion concentration (H^+,measured in moles/lit

makkiz [27]

ok. We are given the following equation:

$ph=-\log (H)$

Where:

$\begin{gathered} P=\text{ alkalinity} \\ H=\text{ hydrogen ion concentration} \end{gathered}$

Since we are asked to determine "H" we will solve for "H" in the equation. To do that we will first multiply both sides by -1:

$-ph=\log (H)$

Now, we will use the following property of logarithms:

$\log _aB=c\rightarrow B=a^c$

Applying the property and having into account that:

$\log (H)=\log _{10}(H)$

We get:

$10^{-pH}=H$

Now we substitute the given value of "pH = 4.5":

$10^{-4.5}=H$

Solving the operation:

$0.000032=H$

Therefore, the hydrogen ion concentration of the fluid is 0.000032

7 0

1 year ago

I really need help with these 2 geometry questions tysm

qwelly [4]

Answer:

180 + 9 - 4 = 185

5x = 185

185/5= 37

A = 37 X 2 - 9 = 65

B = 37 X 2 + 4 = 78

C = 37

A + B + C = 180

65 + 78 + 37 = 180

A = 65 degrees

B = 78 degrees

7 0

3 years ago

William works at a nearby electronics store. He makes a commission of 6%6\% 6% 6, percent on everything he sells. If he sells a

Vikki [24]

The answer is $45.84

Step by step explanation:

Commission William makes on the things he sells = 6%

Selling price of the computer = $764

So the commission William will make is =

$\frac{6}{100}\times764$ = 45.84

Hence, William will make a commission of $45.84 on the computer he will sell for $764.

6 0

3 years ago

Read 2 more answers