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2 years ago

Simplify (3 + √5 )(2 + √5)need the answer ASAP, WILL GIVE BRAINLIEST

Mathematics

2 answers:

Oduvanchick [21]2 years ago

8 0

Answer:

the answer is 11+5√5

Step-by-step explanation:

B/c (a+b).(c+d)=ac+ad+bc+bad
(3+√5)(2+√5)=3.2+3.√5+√5.2+√5√5
=6+3√5+2√5+√5√5
=6+3√5+2√5+5
=11+3√52√5
=11+5√5

d1i1m1o1n [39]2 years ago

6 0

Answer:

11 + 5√5

Step-by-step explanation:

6 + 3√5 +2√5 + 5

11 + 5√5

root n * root n = n , which is why there is a 5 at the end

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(2x-7)-(4x^2+6x-3)+(x^2+4)

masha68 [24]

Answer:

$-3x^2-4x$

Step-by-step explanation:

Simplify:

$\left(2x-7\right)-\left(4x^2+6x-3\right)+\left(x^2+4\right)$

$=2x-7-\left(4x^2+6x-3\right)+x^2+4$

Group same factor:

$=-\left(4x^2+6x-3\right)+x^2+2x-7+4$

Add :

$=-\left(4x^2+6x-3\right)+x^2+2x-3$

Apply the distributive law: -(a+b) = -a - b

$-\left(4x^2+6x-3\right)=-4x^2-6x+3$

$=-4x^2-6x+3+x^2+2x-3$

Group same factor:

$=-4x^2+x^2-6x+2x+3-3$

Subtract:

$=-4x^2+x^2-6x+2x$

Add:

$=-3x^2-6x+2x$

Group same factor:

$=-3x^2-4x$

Hence answer = $-3x^2-4x$

<u><em>~lenvy~</em></u>

8 0

2 years ago

Is 95/72 closer to 0, 1, 2 or 3

kozerog [31]

1.3 so closer to 1 !! Best of luck

6 0

3 years ago

Read 2 more answers

What os the mean of 90,90,100,95,95,85,100,100,80,100

trapecia [35]

Answer:93.5

Step-by-step explanation:

1.Add all the numbers up which is 935.

2.divide that amount by how much numbers there are, 10. So do 935 divided by 10 which is 93.5

4 0

3 years ago

Continue the pattern 31, 5, 32, 10, 33, 15, blank blank blank

klemol [59]

Answer:

34, 20, 35, ...

Step-by-step explanation:

From what I see, it is alternating between two patterns: +5 starting at 5, and +1 starting at 31.

7 0

3 years ago

Read 2 more answers

At the local gas station gasoline costs $2.75 for per gallon and diesel costs $3.02 per gallon. Gabriel needs to purchase 15.2 g

Ainat [17]

Answer:

The total amount paid by Gabriel at the local gas station is $70.49.

Step-by-step explanation:

Cost of gasoline per gallon = $2.75

Cost of diesel per gallon = $3.02

Amount of gasoline Gabriel needs = 15.2 gallons

Amount of diesel Gabriel needs = 9.5 gallons

Compute the total amount paid by Gabriel at the local gas station as follows:

Total Cost = Cost of gasoline × Amount of gasoline

+ Cost of diesel × Amount of diesel

$=(2.75\times 15.2)+(3.02\times 9.5)\\\\=41.8+28.69\\\\=70.49$

Thus, the total amount paid by Gabriel at the local gas station is $70.49.

7 0

3 years ago

Simplify (3 + √5 )(2 + √5)need the answer ASAP, WILL GIVE BRAINLIEST ​

Simplify (3 + √5 )(2 + √5)need the answer ASAP, WILL GIVE BRAINLIEST