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Snezhnost [94]
3 years ago
7

If a^2=b^2, does a=b? Explain and justify your answer.

Mathematics
1 answer:
anygoal [31]3 years ago
4 0

Answer:

  not necessarily

Step-by-step explanation:

Taking the square root of both sides, you have ...

  ±a = ±b

Those four cases resolve to two unique cases:

  a = ±b

The given equation will be true if a = b or if a = -b. If a and b are constrained to have the same sign, then a=b is the only solution.

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I need help with this ok thanks I’m having a real hard time<br> BRANLIEST if you get thanks :)
Brrunno [24]

Answer:

1-11  2-4   3-14  4-9  5-8  6-12  7-15

Step-by-step explanation:plz mark brainliest

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3 years ago
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The diagram shows a solid which is half of a cone. Calculate the total surface area of the solid.
Vilka [71]

Answer:

<h2>100πcm².</h2><h2>None of the options is correct</h2>

Step-by-step explanation:

Total surface area of a cone S = \pi r^{2}+\pi  rl\\

Since the diagram is half of a cone, its surface area will be S = \frac{\pi r^{2} +\pi rl}{2}

r = radius of the cone

l = slant height

From the diagram diameter of the cone = 16m;

r = 16/2 = 8m

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5 0
3 years ago
Find the slope of the line that passes through the pair of points (–1.75, 14.5) and (–1, 4.4). Round to the nearest hundredth if
Feliz [49]

For this case we have that by definition, the slope of a line is given by:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}}

Two points are needed through which the line passes:

(x_ {1}, y_ {1}): (- 1.75; 14.5)\\(x_ {2}, y_ {2}}: (- 1; 4.4)

Substituting:m = \frac {4.4-14.5} {- 1 - (- 1.75)}\\m = \frac {-10.1} {0.75}\\m = -13.46666666

Rounding:

m = -13.47

Answer:

m = -13.47

5 0
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Answer:

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To find the slope of a line between two points, we use the equation

m = (y2-y1)/ (x2-x1)

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m = (12-8)/(4-10)

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6 0
3 years ago
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Number 24 ion know the answer
Stels [109]

Answer:

C.620

Step-by-step explanation:

125+185=310

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3 years ago
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