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ira [324]
3 years ago
15

If |x| = 7 and |y| = 13, then which of the following could be equal to x + y?

Mathematics
2 answers:
vichka [17]3 years ago
8 0

Answer:

Answer shown from explanation

Step-by-step explanation:

|x| means modulus of x such that positive or negative value of x evaluates to a positive value.

|x| = 7 is the same as x = -7 and x = 7

Similarly,

|y| = 13 is the same as y = -13 and y= 13;

Hence the possible values are;

7+13= 20

7-13= -6

-7-13= -20

-7 + 13 = 6

likoan [24]3 years ago
6 0

Answer:

20, -20, -6, 6

Step-by-step explanation:

x and y could be negative or positive.

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5. Point U is the midpoint of ty. Find the value of x. Round to the nearest tenth if necessary.
sattari [20]

The value of x is 8.5.

Solution:

U is the mid-point of TV.

TU = 6

UV = 2x - 11

TU = UV

6 = 2x - 11

Add 11 on both sides.

6 + 11 = 2x - 11 + 11

17 = 2x

Divide by 2 on both sides.

$\frac{17}{2} =\frac{2x}{2}

8.5 = x

Switch the sides.

x = 8.5

Option B is the correct answer.

7 0
3 years ago
Which is a solution of the equation?
dem82 [27]

Answer:

b

Step-by-step explanation:

to determine which point is a solution, substitute the x-coordinate of the point into the equation and if the value is equal to the y-coordinate of the point then it is a solution.

(a) (- 1, 3)

y = (- 2 × - 1) + 4 = 2 + 4 = 6 ≠ 3 ⇒(-1, 3) is not a solution

(b) (- 2, 8)

y = (- 2 × - 2) + 4 = 4 + 4 = 8 ⇒ (- 2, 8) is a solution

(c) (0, 1)

y = 0 + 4 = 4 ≠ 1 ⇒ (0, 1) is not a solution

(d) (4, 2)

y = (2 × 4) + 4 = 8 + 4 = 12 ≠ 2 ⇒ (4, 2) is not a solution


3 0
3 years ago
A person can pay $8 for a membership to the science museum and then go to the museum
kap26 [50]

Answer:

The maximum number of visits for a member of science museum is 36.

Step-by-step explanation:

Given,

Membership fee = $8

Per visit fee = $1

Total cost = $44

Let,

x be the number of visits

y be the total cost

Total cost = per visit fee*number of visits + membership fee

y = x+8

The maximum number of visits for a member of science museum is 36.

Keywords: variable, addition

8 0
3 years ago
Read 2 more answers
Any ideas? Thanks in advance
olasank [31]
To find the slope with two points use this simple equation
\frac{y2 - y1}{x2 - x1}
Then plug in the numbers
\frac{6 - 4}{ (- 10) - (- 5)}
Now solve
\frac{2}{ - 5}
Your slope is
\frac{2}{ - 5} or -0.4
8 0
3 years ago
I need help with this for class<br>A=<br>a=<br>b=
Aleks [24]
A=180-(41+90)

b= JUST LEARN CONSINUS AND SINUS RULES
5 0
3 years ago
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