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Pani-rosa [81]
4 years ago
12

The sum of 2/3m and 1/5

Mathematics
1 answer:
riadik2000 [5.3K]4 years ago
7 0
13/15


Hope this helps
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If i have 250 ft. and subtract 12ft. 9 in. ?​
Westkost [7]
You would have 237 feet and 3 inches
3 0
4 years ago
Please help will give brainlest +30 points!
erica [24]
B is 1 because when you plug in they both equal 1
7 0
3 years ago
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Expand.<br> If necessary, combine like terms.<br> (3+4.)(3 - 4x) =
gogolik [260]

Answer:

-16x^2 +9

Step-by-step explanation:

To start this problem I would rearrange so that the terms with the x's come first. Making it look like this

(4x+3)(-4x+3)

Now you take the 4x and distribute it to the -4x and the 3.  

-16x^2+12x  This is the first part

Take the 3 and distribute it to the -4x and the 3 as well.

-12x+9

All you do now is combine the twoso you'd have

-16x^2 +12x -12x +9  Notice there are two terms that have a regular x with no exponent. This means you can combine them to simplify further.

-12x+12x=0  So you no longer have to include this term in your answer.

-16x^2+9 Would then be your final answer.

4 0
3 years ago
The angle of elevation from a park bench 778 feet from the base of the Gateway Arch in St. Louis, Missouri is 39 degrees. How ta
svetlana [45]

Answer:

630 .18 feet tall is the gateway arch .

Step-by-step explanation:

As given

The angle of elevation from a park bench 778 feet from the base of the Gateway Arch in St. Louis, Missouri is 39 degrees.

Now by using the trignometric property

tan\theta = \frac{Perpendicular}{Base}

As diagram is given below .

\theta = 39^{\circ}

tan39^{\circ}= \frac{AB}{CB}

CB = 778 feet

tan 39^{\circ} = 0.81 (Approx)

0.81= \frac{AB}{778}

AB = 0.81 × 778

AB = 630 .18 feet

Therefore the 630 .18 feet tall is the gateway arch .


6 0
3 years ago
Evaluate: 3x + 6x for x=-1
bekas [8.4K]

Answer:

-9

Step-by-step explanation:

you put in -1 where there is an x in the equation

3(-1) + 6(-10)

-3 - 6

-9 is the answer

3 0
3 years ago
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