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2 years ago

HELP ME PLEASE WILL GIVE ALL POINTS

Mathematics

1 answer:

Luba_88 [7]2 years ago

4 0

Answer:

28.5

Step-by-step explanation:

x + 14 = 3x - 15

29 = 2x

x = 14.5

14.5 + 14 = 28.5

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The mean of a particular set of 7 numbers is 4. Six of the numbers in the set are known: 1,2,2,5,7,and 8.

Setler [38]

$\dfrac{1+2+2+5+7+8+x}{7}=4\\
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3 years ago

Which percentage is equivalent to 14/25

Leviafan [203]

46% is equal to 14/25

14/25 is equal to 46/100 (multiply 14/25 times 4/4) and that is 46%

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2 years ago

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Find the co-ordinates of the point of trisection of the line joining the points A(1,8) and B(4,2).

Licemer1 [7]

<u>coordinates of the point are (2,6) and (3,4)</u>

Answer:

Solution given:

let the given point be A(1,8) and B(4,2).

P and Q are the two points on AB such that

AP=PQ=QB=k

now

comparing AP and PB

AP=k

PB=2k

ratio of AP and PB = $\frac{1k}{2k}$ = ratio 1:2

now

finding p

for this

$(m_1,m_2)=(1,2)$

For AB

$(x_1,y_1)=(1,8)$

$(x_2,y_2)=(4,2)$

now by using division formula

$(x,y)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})$

$=(\frac{1*4+2*1}{1+2},\frac{1*2+2*8}{1+2})=(2,6)$

similarly

Q divides AB

Ratio of AQ and QB = $\frac{2k}{1k}$ = ratio 2:1

$(x_1,y_1)=(1,8)$

$(x_2,y_2)=(4,2)$

$(m_1,m_2)=(2,1)$

by using division formula

$(a,b)=(\frac{m_1x_2+m_2x_1}{m_1+m2},\frac{m_1y_2+m_2y_1}{m_1+m2})$

$=(\frac{2*4+1*1}{2+1},\frac{2*2+1*8}{2+1})=(3,4)$

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3 years ago

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ddd [48]

Answer:

Step-by-step explanation:

if BU and BN weren't congruent, then the two triangles couldn't be proved to be congruent

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2 years ago

Simplify 8d-6e - 3d + 4e.

Anastasy [175]

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Step-by-step explanation:

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