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2 years ago

Somebody help me with this please

Mathematics

2 answers:

Vlada [557]2 years ago

5 0

Answer:

9 units

Step-by-step explanation:

Length of a segment RV is a difference of values of V and R. According to the number line, R is -7 and V is 2.

The difference or change in two values is 2 - (-7) = 2 + 7 = 9 units.

Henceforth, the segment RV is 9 units.

netineya [11]2 years ago

4 0

Answer: 9 units

Step-by-step explanation: R is at -7 and is at 2. Think of how far away -7 is from 2. -7+9=2.

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Find the intercepts for the graph of the equation given. X +7y=0

Citrus2011 [14]

Answer:

They are both (0,0)

The x intercept is when y is equal to zero.

VICE VERSA

x + 7(0) = 0

(0) + 7y = 0

Hope this helps!!!

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3 years ago

Which of the following are solutions to the equation 2cos2x-1=0

loris [4]

Answer:

x = π/4 and 5π/4

Step-by-step explanation:

Given the expression;

2cos²x - 1 = 0

2cos²x = 0+1

2cos²x = 1

cos²x = 1/2

cos x = ±√1/2

cos x = ±0.7071

x = arccos(±0.7071)

x = ±45 degrees

Convert to radians

Sence 180° = π rad

45° = x

x = 45π/180

x = π/4

If x = -45°

Since cos is negative in the 3rd quadrant

x = 180 + 45

x = 225°

x = 225π/180

x = 45π/36

x = 5π/4

8 0

3 years ago

What slope is perpendicular to m= 5/8 m=-5/8 m=5/8 m=-8/5 m=8/5

MrRa [10]

Answer:

C) $m =\frac{-8}{5}$

The slope of the perpendicular line $m =\frac{-8}{5}$

Step-by-step explanation:

Explanation:-

Given that the slope of the given line is

$m =\frac{5}{8}$

The slope of the perpendicular line

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

The slope of the perpendicular line

= $\frac{-1}{\frac{5}{8} }$

Final answer

The slope of the perpendicular line

$m =\frac{-8}{5}$

7 0

3 years ago

A quarter is 1/5 of an inch thick and 5 quarters weigh one ounce. Stephanie built a toothpick bridge that could safely hold 3 po

AleksandrR [38]

Answer:

Maximum height of quarter tower = 9.6 inches.

Step-by-step explanation:

The thickness of a quarter = $\frac{1}{5}$ inches

Weight of a quarter = 1 ounce

The maximum weight that could safely hold = 3 pounds.

The conversion factor for ounce to pound is 1 ounce = 0.0625 pound

The number of quarter used in the tower = no of ounces equivalent to 3 pounds.

No of ounces equivalent to 3 pounds = $\frac{3}{0.0625}$

No of ounces equivalent to 3 pounds = 48

So the height of quarter tower = 48 \times $\frac{1}{5}$ inches

= 9.6 inches.

4 0

3 years ago

What number is 12 more than 43

Nata [24]

55. If it says 12 more, you add 12 to 43 to get 55.

4 0

3 years ago

Read 2 more answers