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3 years ago

I need help with this 4 problems.please

Mathematics

2 answers:

zepelin [54]3 years ago

8 0

The awnsers are b f and d and j

seropon [69]3 years ago

3 0

The answer are b, f, d and j

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Can you solve this problem please

Afina-wow [57]

Answer:

k = 11

Step-by-step explanation:

Given the points are collinear then the slopes between consecutive points are equal.

Using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (5, 1) and (x₂, y₂ ) = (1, - 1)

m = $\frac{-1-1}{1-5}$ = $\frac{-2}{-4}$ = $\frac{1}{2}$

Repeat with another 2 points and equate to $\frac{1}{2}$

with (x₁, y₁ ) = (1, - 1) and (x₂, y₂ ) = (k, 4)

m = $\frac{4+1}{k-1}$ , then

$\frac{5}{k-1}$ = $\frac{1}{2}$ ( cross- multiply )

k - 1 = 10 ( add 1 to both sides )

k = 11

6 0

3 years ago

Read 2 more answers

Elements can have a positive charge, a negative charge, or no charge. Determine the magnitude of each element given below. Eleme

Ipatiy [6.2K]

Answer: $||q_{A}||=5$ , $||q_{B}||= 3$ , $||q_{C}|| = 0$ .

Step-by-step explanation:

The magnitude is an absolute value by definition. Hence, each element has the respective value:

$||q_{A}|| = 5\\||q_{B}|| = 3\\||q_{C}|| = 0\\$

5 0

3 years ago

You bought a magazine for $3 and two notepads. You spent a total of $13. How much did each notepad cost? *

sweet-ann [11.9K]

Answer:

Step-by-step explanation:

We want to find the cost of a notepad considering a magazine costs $3 and we buy 2 notepads and the total cost of the magazine and the 2 notepads is $13 so we can set up an equation to represent this situation. Let 'n' be notepads and that's the value we are solving for so,

⇒ Form the equation

→ 2n + 3 = 13

⇒ Minus 3 from both sides to isolate 2n

→ 2n = 10

⇒ Divide both sides by 2 to find the cost of one notepad

→ n = 5

The cost of one notepad is $5 considering that a magazine cost's $3 and two notepads and total is $13.

4 0

3 years ago

Between 10 a.M. And 11 a.M., 48 people came into Brad's store. 40 of them made a purchase. What is the experimental probability

irina [24]

Answer: The required probability is $\dfrac{5}{6}$