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rewona [7]
2 years ago
15

NEED HELP PLEASE!!!!!

Mathematics
1 answer:
Ghella [55]2 years ago
6 0
1)  14/20=21/25+x
      x=5
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MAKE YOU THE BRAINLIEST EASY QUESTION Show the formula for finding the area of a triangle. Then find the area of a right triangl
lesya692 [45]

Answer:

Formula to find the area of a triangle is 1/2(bxh). The area of the right triangle is 28.

Step-by-step explanation:

To solve this problem you would plug in the base and height into the formula and follow the order of operations (P.E.M.D.A.S). So the equation would then read 1/2(5x11.2). Once you solve inside the parenthesis, the equation then reads, 1/2(56). Then you solve what half of 56 is, which is 28.


I hoped this helped you!

6 0
2 years ago
Read 2 more answers
Suppose a + b = 0.
Digiron [165]
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3 years ago
Answer for number 1?
Rufina [12.5K]

Answer:

you  need to draw a triangle on the grid

Step-by-step explanation:

find point -3 then 7

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8 0
2 years ago
Charles earned a total of $180 from working 12 hours. He earned the same amount each hour. Write an equation to describe the rel
olga2289 [7]

Answer:

he earns $15 an hour. the equation is 12h=t

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7 0
3 years ago
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
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