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fiasKO [112]
3 years ago
8

Answer pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee omg

Mathematics
1 answer:
Sphinxa [80]3 years ago
3 0
The best estimate of r is 0.
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PLEASE HELPPPPPP!!!!
lord [1]

Answer:

So I am not sure my answers are correct but I hope they help:

A. y = 6x+14

B. 6 people

8 0
3 years ago
Explain how to use the sales tax rate to determine an item's total cost.
Sedbober [7]

Answer:

  A. Multiply the purchase price by the tax rate. Then add the result to the purchase price.

Step-by-step explanation:

The amount of tax is found by multiplying the taxed amount by the tax rate. The customer generally pays the sales tax, so the amount the customer will pay will be the sum of the purchase price and the tax.

7 0
2 years ago
A biology test is worth 100 points and has 36 questions.
Ad libitum [116K]

Answer:

(a) 7 essays and 29 multiple questions

(b) Your friend is incorrect

Step-by-step explanation:

Represent multiple choice with M and essay with E.

So:

M + E= 36 --- Number of questions

2M + 6E = 100 --- Points

Solving (a): Number of question of each type.

Make E the subject of formula in M + E= 36

E = 36 - M

Substitute 36 - M for E in 2M + 6E = 100

2M + 6(36 - M) = 100

2M + 216 - 6M = 100

Collect Like Terms

2M - 6M = 100 - 216

-4M = - 116

Divide both sides by -4

M = \frac{-116}{-4}

M = 29

Substitute 29 for M in E = 36 - M

E = 36 - 29

E = 7

Solving (b): Can the multiple questions worth 4 points each?

It is not possible.

See explanation.

If multiple question worth 4 points each, then

2M + 6E = 100 would be:

4M + xE = 100

Where x represents the number of points for essay questions.

Substitute 7 for E and 29 for M.

4 * 29 + x * 7 = 100

116 + 7x = 100

Subtract 116 from both sides

116-116 + 7x = 100 -116

7x = 100-116

7x = -16

Make x the subject

x = -\frac{16}{7}

Since the essay question can not have worth negative points.

Then, it is impossible to have the multiple questions worth 4 points

<em>Your friend is incorrect.</em>

6 0
2 years ago
What is the ratio of the radius of a circle to its circumference 12π 1πr 1π 2π
aleksklad [387]
The circumference is (2 pi) (radius) . The ratio of radius to circumference is (1)/(2 pi).
4 0
3 years ago
Help needed pleaseee
ohaa [14]

Answer:

A

Step-by-step explanation:

Since we're dealing with perpendicular lines, we take the recipricol of the m value of the original equation.

So the slope we're dealing with is 1/2.

And the equation we have so far is

y = 1/2x + b

Now we solve for b by plugging in the point (4,2).

2 = 1/2(4) + b

2 = 2 + b

b = 0

So the final equation is

y = 1/2x

8 0
3 years ago
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