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egoroff_w [7]
3 years ago
7

(3x + 7)5 Simply the expression

Mathematics
2 answers:
babunello [35]3 years ago
8 0

Answer:

15x+35

Step-by-step explanation:

(3x + 7)5

Use 5 to open the bracket

3x \times 5 = 15x \\ 7 \times 5 = 35

15x + 35

alexdok [17]3 years ago
4 0

Answer:

3x+35

Step-by-step explanation:

the ( is a times, you times 7 by 5 and get 35. there is no other number that has a x with it so it stays by itself. You can only do something with the x number if there is another x number.

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The number obtained on rationalizing the denominator of 1/(√7--2) is
Slav-nsk [51]

\frac{1}{ \sqrt{7}  -(- 2)}  \\ rationalizing \:  \:  \: the \:  \:  \: denominator \:  \:  \: we \:  \:  \: have \\  =  \frac{1}{ \sqrt{7} + 2 }  \times  \frac{ \sqrt{7}  - 2}{ \sqrt{7}  - 2}  \\  =  \frac{ \sqrt{7}  - 2}{ {( \sqrt{7} )}^{2} -  {(2)}^{2}  }  \\  =  \frac{ \sqrt{7} - 2 }{7 - 4}  \\  =  \frac{ \sqrt{7}   - 2}{3}

Hope you could get an idea from here.

Doubt clarification - use comment section.

3 0
2 years ago
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I will give brainliest
jasenka [17]

Answer:

24 Units.

Step-by-step explanation:

3 0
3 years ago
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Find the equation of the straight line passing through the point (3,5) which is perpendicular to the line y=3x+2
Levart [38]

Answer:

the desired equation is y = (-1/3)x + 6

Step-by-step explanation:

Let the given line be A:  y=3x+2

The slope of line A is m = 3.

The slope of any line B which is perpendicular to line A is the negative reciprocal of the slope of A:  m = -(1/3).

The particular perpendicular line that passes through (3, 5) is then

5 = (-1/3)(3) + b, which simplifies to 5 = -1 + b, or b = 6.

Thus, the desired equation is y = (-1/3)x + 6

7 0
3 years ago
2+2= what +6 HA they cant repo this so u guys can get points
Rzqust [24]

Answer:

10

Step-by-step explanation:

2+2=4

4+6= 10

5 0
3 years ago
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Help solving this I’m don’t understand
ladessa [460]

AB is a chord that passes through the center O, which means the central angles BOC and AOC are supplementary. So

m\angle BOC+m\angle AOC=180^\circ\implies m\angle AOC=180^\circ-55^\circ=125^\circ

Central angles and the arcs they subtend have the same measure, so that

m\widehat{AC}=m\angle AOC=125^\circ

m\widehat{CBA}=m\widehat{BC}+m\widehat{AB}=m\angle BOC+m\angle AOB=55^\circ+180^\circ=235^\circ

4 0
3 years ago
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