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3 years ago

Factoring polynomial 40a2 -32a

Mathematics

1 answer:

professor190 [17]3 years ago

8 0

factor out 8a from the expression 8a(5a-4)

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The angle of elevation of the top of a tree from a point 100 meters from the foot of the tree is 36 degrees. How high is the tre

Veseljchak [2.6K]

To answer this question we can think Soh Cah Toa. If we are 100 ft from the tree and at an angle of 36 degrees and we want what I call the rise we can us the Toa formula tan(36)=o/100 then manipulate algebraically until we get the following o=tan(36)(100) this give us the height (o) to be 72.65 meters

7 0

3 years ago

In the Mississippi River Delta, fresh water (0% salinity) mixes with salt water from the Gulf of Mexico (3 1 2% salinity). If 1,

Rina8888 [55]

Answer:

The total resulting gallons of water is 4,000 gallons

The concentration of the resulting solution is 2.625% salinity

Step-by-step explanation:

The salinity of the fresh water from the Mississippi River Delta = 0%

The salinity of the water from the Gulf of Mexico = 3 1/2%

Therefore, if 1,000 gallons of river water mixes with 3,000 gallons from the Gulf, we have;

The total resulting gallons of water = 1,000 + 3,000 = 4,000 gallons

The total resulting gallons of water = 4,000 gallons

The concentration of the resulting solution is found as follows;

The concentration of the resulting solution = (3 × 3 1/2)/400 × 100 = 2.625%

The concentration of the resulting solution = 2.625% salinity.

8 0

3 years ago

La tonya has 16 photos on her phone and luis has p photos in his wallet

Alja [10]

*(Information)*=

-This question is asking for a expression

- She has 16 photo on her phone (Since this is a number this is a constant)

- $p$ is the variable

- Variables are unknown numbers

-Constants is a number like $9, 10, 25, 1,$ and more

*(Answer)*= $p+16$

*(Explanation)*= Te reason why it is $p+16$ is because p is the unknown number. The constant is 16 in this question.

7 0

4 years ago

Which measure correctly completes the statement?

PolarNik [594]

1,127.5 milligrams = 1.1275 grams

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3 years ago

A pond had 60 fish.

Irina-Kira [14]

Should be 11 if i did it correctly

6 0

3 years ago