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3 years ago

How many metres are there in ½ of ⅕ km

Mathematics

1 answer:

Lorico [155]3 years ago

5 0

Step-by-step explanation:

1/5=1/5×1000=200

1/2 of 200

1/2×200=100

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The coordinates of point T are (0,4). the midpoint of ST is (7,-5). find the coordinates of point S

Nonamiya [84]

The formula of a midpoint:

$M_{ST}\left(\dfrac{x_S+x_T}{2},\ \dfrac{y_S+y_T}{2}\right)$

We have:

$T(0,\ 4)\to x_T+0,\ y_T=4\\M(7,\ -5)\to x_M=7,\ y_M=-5$

Substitute:

$\dfrac{x_S+0}{2}=7\qquad|\cdot2\\\\x_S=14\\\\\dfrac{y_S+4}{2}=-5\qquad|\cdot2\\\\y_S+4=-10\qquad|-4\\\\y_S=-14$

<h3>Answer: S(14, -14).</h3>

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4 years ago

Let f(x) = 5x + 12. Find f−^1(x)

soldi70 [24.7K]

${f}^{ - 1}(x) = \frac{x - 12}{5}$

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3 years ago

8. Describe this expression using words<br> 3(x + 2)

kenny6666 [7]

Answer:

Three times the sum of a number and 2.

Step-by-step explanation:

Sum of a number and 2 = x + 2

3 times = 3 multiplied

6 0

3 years ago

Find the product (a^2-b)(5a^2+6b)

Pie

Answer:

5a^4+a^2b−6b^2

Step-by-step explanation:

1. Use the FOIL method: (a+b)(c+d)=ac+ad+bc+bd.

5a^4+6a^2b−5ba^2−6b^2

2. Collect like terms.

5a^4+(6a^2b−5a^2b)−6b^2

3. Simplify.

5a^4+a^2b−6b^2

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3 years ago

1/2 of 3 inches is what inches<br><br><br>

muminat

Answer:

1.5 inches

Step-by-step explanation:

half of 3 is 1 1/2 or 1.5

7 0

3 years ago

How many metres are there in ½ of ⅕ km​

How many metres are there in ½ of ⅕ km