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Nimfa-mama [501]
3 years ago
15

Subtract 3-9 = ???????

Mathematics
2 answers:
klemol [59]3 years ago
7 0

Answer:

-6

Step-by-step explanation:

marusya05 [52]3 years ago
4 0

Answer:

-6

Step-by-step explanation:

come on

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What is 1/4 + 1/2? hurry i need help
Ivenika [448]

Answer: the answer is 3/4

Step-by-step explanation: because 1/4+1/2= 0.75 and 0.75 as a fraction is 3/4

5 0
3 years ago
Read 2 more answers
Is the line through points P(–3, –2) and Q(2, 3) perpendicular to the line through points R(10, –1) and S(15, –6)? Explain.
Alexus [3.1K]

Answer:

B. Yes. Their slopes have product -1.

Step-by-step explanation:

Given:

Line passing through P(-3, -2) and Q(2, 3)

Line passing through R(10, -1) and S(15, -6)

Required:

To determine if both lines are perpendicular.

SOLUTION:

Two lines are considered perpendicular if the product of their slopes equal -1.

To determine if both lines given in the question are perpendicular, first, calculate their slope using: m = \frac{y_2 - y_1}{x_2 - x_1}

Slope of line passing through P(-3, -2) and Q(2, 3):

Let,

P(-3, -2) = (x_1, y_1)

Q(2, 3) = (x_2, y_2)

m = \frac{3 -(-2)}{2 -(-3)}

m = \frac{5}{5} = 1

Slope of line passing through R(10, -1) and S(15, -6):

Let,

R(10, -1) = (x_1, y_1)

S(15, -6) = (x_2, y_2)

m = \frac{-6 -(-1)}{15 - 10}

m = \frac{-5}{5} = -1

The product of their slopes = 1 × -1 = -1

<u><em>Therefore, the lines are perpendicular.</em></u>

The answer is: <em><u>B. "Yes. Their slopes have product -1."</u></em>

5 0
4 years ago
What is the value of x?
andrew11 [14]
Hope this will help you .

answer is 68

given than 2 sides are equal therefor 2 angles are also equal ,

so, angle 1 + angle2 + angleX = 180 [ASP]

2angle1 + angle X = 180
angle x = 150 - [56][2]
angle x = 180-112

ANGLE x = 68 DEGREE
MARK IT BRAINIEST IF IT WAS REALLY HELPFUL.
4 0
3 years ago
What is the value of x and what is the length of MN?
Galina-37 [17]

Answer:

Step-by-step explanation:

\frac{3x+4}{12}=\frac{15}{6}\\3x+4=30\\3x=26\\x=\frac{26}{3}\\MN=3x+4=30

5 0
3 years ago
Write an equation of the line that passes through (-1,7) and is perpendicular to the line y=-1/8x -1
kirill115 [55]

Answer:

y = 8x + 15

Step-by-step explanation:

Step 1: Find slope of perpendicular line

<em>Take the negative reciprocal of the 1st equation</em>

m = 8

y = 8x + b

Step 2: Find <em>b</em>

7 = 8(-1) + b

7 = -8 + b

b = 15

Step 3: Rewrite perpendicular equation

y = 8x + 15

8 0
4 years ago
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