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valentinak56 [21]
3 years ago
12

7) Find the distance between the points B(-2, 14) and C(3, 8) to the nearest tenth.

Mathematics
1 answer:
RoseWind [281]3 years ago
8 0

\bf ~~~~~~~~~~~~\textit{distance between 2 points} \\\\ B(\stackrel{x_1}{-2}~,~\stackrel{y_1}{14})\qquad C(\stackrel{x_2}{3}~,~\stackrel{y_2}{8})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ BC=\sqrt{[3-(-2)]^2+[8-14]^2}\implies BC=\sqrt{(3+2)^2+(8-14)^2} \\\\\\ BC=\sqrt{25+36}\implies BC=\sqrt{61}\implies \stackrel{\textit{rounded up}}{BC=7.8}

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Luis measures a plant and finds it is 12.5 centimeters tall.
VARVARA [1.3K]

Answer:

125mm

Step-by-step explanation:

12.5 x 10 = 125

6 0
3 years ago
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</span>21^o= \frac{arc \ RU-arc \ SU}{2}= \frac{119^o-arc \ SU}{2}  \ \to \ \\ \\ 42= 119-arcSU \\ arc \ SU=119-42=77^o<span>
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3 years ago
What number can be used to complete the volume statement for the cone?<br> 4m h<br> 3 m base
Mariana [72]
The volume of a cone is calculated through the equation,

     V = (πD²/4)(H)/3

where V is volume,
     D is diameter
     H is height

Substituting the known values,

    V = (π(3m)²/4)(4m)/3

Simplifying,
    V = 3π m³

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8 0
3 years ago
Anna is given the equation 3 + 2x = 2x + 3 The replacement set is {2, 3, 4, 5} Anna says the solution is {3}, but the teacher ma
alexira [117]

<u><em>Answer:</em></u>

The given equation has <u>infinite number of solutions</u>. This means that <u>any real number</u> can be considered a solution to the given equation.

Since the given replacement set {2,3,4,5} consists of real numbers, therefore, the whole set is considered as a solution to the given equation.

This is because, when solving the given equation for x, we will end up with 0 = 0, this means that whatever the value of x is, both sides of the equation will always be equal.

<u><em>Explanation:</em></u>

To solve for x, we need to isolate the x on one side of the equation.

<u>This can be done as follows:</u>

3 + 2x = 2x + 3 (subtract 3 from both sides)

2x = 2x (subtract 2x from both sides)

0 = 0

This means that whatever, the value of x is, both sides of the equation will be equal. This means that all real numbers are considered a solution for this equation.

<u>Let's verify this using the given replacement set {2,3,4,5}:</u>

<u>For x = 2: </u>

Left hand side: 3 + 2(2) = 3 + 4 = 7

Right hand side: 2(2) + 3 = 4 + 3 = 7

Both sides are equal.

<u>For x = 3:</u>

Left hand side: 3 + 2(3) = 3 + 6 = 9

Right hand side: 2(3) + 3 = 6 + 3 = 9

Both sides are equal.

<u>For x = 4:</u>

Left hand side: 3 + 2(4) = 3 + 8 = 11

Right hand side: 2(4) + 3 = 8 + 3 = 11

Both sides are equal.

<u>For x = 5:</u>

Left hand side: 3 + 2(5) = 3 + 10 = 13

Right hand side: 2(5) + 3 = 10 + 3 = 13

Both sides are equal.

Hope this helps :)


5 0
3 years ago
QUUUUU
Arlecino [84]

Answer:

D

Step-by-step explanation:

I did the thing

6 0
3 years ago
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