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4 years ago

For what value of b do the lines bx+3y=10 and x–2y=4 intersect at a point on the x-axis?

Mathematics

1 answer:

MatroZZZ [7]4 years ago

5 0

Answer:

b=2.5

Step-by-step explanation:

every point on x axis has y coordinate =0

so bx=10

x=4

4b=10

b=10/4=5/2=2.5

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How do you get 2/3 + 7/2 into 25/5.

BartSMP [9]

2/3 is the same 4/6

7/2 is the same as 21/6

4/6 + 21/6 = 25/6

So the answer is 25/6, not 25/5.

4 0

3 years ago

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Complete the table for the function

IgorLugansk [536]

Answer:

Step-by-step explanation:

y(x) = x^(1/3)+7

y(-8)=(-8)^(1/3)+7=5

y(-1)=(-1)^(1/3)+7=6

y(1)=(1)^(1/3)+7=8

y(8)=(8)^(1/3)+7=9

4 0

3 years ago

Please help and thank you

Mariana [72]

Answer:

B. l = (S - πr^2) / πr

Step-by-step explanation:

S = πrl + πr^2 solve for l

πrl = S - πr^2

l = (S - πr^2) / πr

Answer is B. l = (S - πr^2) / πr

7 0

3 years ago

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Help me with this math question please

Maksim231197 [3]

the solution is where the line cross on the y axis, which is on 0

so y = 0

6 0

3 years ago

This question has two parts. Be sure to answer both parts of the question. One inequality in a system is shown below. -12x + 3y

fgiga [73]

The inequality is -12x + 3y > 9.

PART A:

The sytem has no solution if inequality does not share a common area. The inequality -12x + 3y > 9 consist the region to left of line -12x + 3y = 9. So for no solution the region to left of equation -12x + 3y = 9 is suitable.

Thus inequality for no solution is, -12x + 3y < 9.

PART B:

For infinite solution the region of both inequality must overlap each other, or the inequality is same with some multiplication of divison factor. So inequality for infinite many solutions is,

$\begin{gathered} (-12x+3y>9)\times-1 \\ 12x-3y$

Thus inequality for infinite many solution is 12x - 3y < -9.

7 0

1 year ago