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diamong [38]
3 years ago
15

6a squared - 15a - 8a + 20

Mathematics
2 answers:
Novosadov [1.4K]3 years ago
5 0
First we factor out 3a and -4. 3a(2a-5)-4(2a-5) =Now we take out (2a-5) our what’s left in brackets.(2a-5)(3a-4)
Sav [38]3 years ago
4 0
Heya!

Here is your answer:

6a²-15a-8a+20


= 3a(2a-5) -4(2a-5)

= (3a-4)(2a-5)

:)
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What is the solution set of the quadratic inequality 6x2 + 1 <_ 0
padilas [110]

Answer : x^2\leq -1/6

Explanation:

6x^2 +1 \leq 0

shifting 1 to Right hand side becomes -1

6x^2\leq -1

shifting 6 on right hand side will divide -1 becomes -1/6

x^2\leq -1/6

Quadratic equation is the equation having degree 2 and inequality which is not  equal  to right hand side

7 0
3 years ago
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Pls help!!!
natka813 [3]

Answer:

The area of the base B is equal to 770\ cm^{2}

The volume  is equal to 10,087\ cm^{3}

Step-by-step explanation:

I will proceed to resolve the problem indicated in the attached figure.

The figure shown a inverted rectangular pyramid

The base is a rectangle

The area of the base B is equal to

B=(35)(22)=770\ cm^{2}

To find how many cubic centimeters of titanium are needed to manufacture one tip, calculate the volume of the figure

<em>Find the volume of the inverted rectangular pyramid</em>

The volume of the pyramid is equal to

V=\frac{1}{3}BH

we have

B=770\ cm^{2}

H=39.3\ cm

substitute

V=\frac{1}{3}(770)(39.3)=10,087\ cm^{3}

5 0
3 years ago
Can yall help me PLEASE LOL and please explain n get the answer right :p
sergiy2304 [10]

Answer:

80

Step-by-step explanation:

Rossi has 5 different movies to choose from, 8 restaurants to choose from, and 2 sporting events to choose from.

For each movie, he has 8 different restaurants to choose from, and for each of those restaurants, he has 2 sporting events to choose from.

Since he plans to go to each event in a specific order (movie -> restaurants-> sporting event), there are 5\cdot 8\cdot 2 =\boxed{80} different dates possible.

6 0
3 years ago
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What is the length of EF¯¯¯¯¯? Enter your answer as a decimal in the box. Round only your final answer to the nearest tenth. ft
Dovator [93]
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Now, you just have to input all your data in the formula, 

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c^2 = 36+121 - 2(6)(11)(0.77)
c^2 = 157 - 101.12
c^2 = 55.88
c = square root of 55.88
c = 7.48 ft

Length of EF is 7.48 ft
4 0
3 years ago
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From a tank holding 1.54t of fuel oil, 30% is used. <br> How much remains?
Andrew [12]
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.462 is 30 percent

subt this from 1.54 to find what is left.

1.08 rounded (1.078)
5 0
3 years ago
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