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2 years ago

HELP ILL MARK BRAINLIEST Please just do questions 4. And 5.

Mathematics

2 answers:

KonstantinChe [14]2 years ago

6 0

Answer:

Step-by-step explanation:

4. 1/8 > 0.12

5. -6/7 < -5/6

6. 3/10 + (-7/10) = -4/10= -2/5

7. -4/9 - 1/9 = -5/9

Evgesh-ka [11]2 years ago

5 0

Answer:

1/8 will be 0.125 as a decimal so that is greater than 0.12! so it will be this $1.8 \geq 0.12$

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The equation of the line WX is 2X plus Y equals -5 what is the equation of a line perpendicular to line WX in slope intercept fo

tensa zangetsu [6.8K]

Answer:

$y = \frac{1}{2}x - \frac{3}{2}$

Step-by-step explanation:

The equation of the line WX is, 2x + y = - 5

⇒ y = - 2x - 5 .......... (1)

This equation is in slope-intercept form and the slope is - 2 and the y-intercept is - 5.

Now, if a line perpendicular to equation (1) having slope m then, m × (- 2) = - 1

⇒ $m = \frac{1}{2}$

{Since the product of slopes of two mutually perpendicular straight line is - 1}

Therefore, the equation of the perpendicular line is

$y = \frac{1}{2}x + c$ , where c is a constant and we have to find it.

This above line passes through the point (-1,-2) and hence

$- 2 = \frac{1}{2}(- 1) + c$

⇒ $c = - \frac{3}{2}$

Therefore, the equation of the line will be $y = \frac{1}{2}x - \frac{3}{2}$ (Answer)

4 0

3 years ago

A rectangle an an area of 30 square meters anda has dimensionsperimeter of 34 meters. What are the of the rectangle

vazorg [7]

The sides of the rectangle are:
xy = 39
2x + 2y

Solve by simultaneous equation:
ysquared -17y + 30 = 0

Solution:
The sides are equal to 15 and 2

6 0

2 years ago

PLEASE HELP Word problem involving average rate of change

oee [108]

Answer:

(a): 26.1

(b): 27.9

Please see below for the steps.

Step-by-step explanation:

(a):

Use points (0,0) and (3, 78.3)

Use slope formula. The slope formula is also used to find average rate of change (just so you know).

y2-y1/x2-x1

78.3-0/3-0=78.3/3=26.1

Answer for (a) is 26.1

(b):

Use points (4, 147.6) and (9, 287.1)

Use slope formula.

y2-y1/x2-x1

287.1-147.6/9-4=139.5/5=27.9

The answer for (b) is 27.9

Hope this helps!

Please mark as brainliest if correct!

Have a great day!

5 0

8 months ago

Suppose you deposit into a savings account one cent on January 1, two cents on January 2, four cents on January 3, and so on, do

OverLord2011 [107]

Answer: day 10 you would deposit 5.12

Step-by-step explanation:

4 0

3 years ago

The quotient of a number and -4 is -72.. find the number

SOVA2 [1]

288 because -4 x -72 = 288.
x/-4=-72.

8 0

3 years ago