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2 years ago

Help me with the attached question please

Mathematics

1 answer:

sergejj [24]2 years ago

6 0

Answer:

284.72

Step-by-step explanation:

there you go

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Write the recurring decimal 0.4 as a fraction in its simplest form.

Ugo [173]

Answer:

2/5

Step-by-step explanation:

0.4 = 4/10 which in simplest form is 2/5

8 0

2 years ago

Read 2 more answers

Geometry

Elan Coil [88]

By definition, the number $\pi$ is the ratio between the circumference and the diameter:

$\pi=\dfrac{C}{d}$

This implies that

$C=\pi d$

And so your circumference is $8\pi$

3 0

2 years ago

Factor Completely: 10x + 15

tankabanditka [31]

Answer:

5(2x + 3)

Step-by-step explanation:

$10x + 15 \\ \\ = 2 \times 5 \times x + 3 \times 5 \\ ( take \: common \: factors \: out )\\ = 5(2 \times x + 3) \\ \\ = 5(2x + 3)$

3 0

2 years ago

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Find the value of z.

AVprozaik [17]

Answer:

z = 110°

Step-by-step explanation:

Angles z and the one marked 70° form an linear pair, hence are supplementary.

z = 180° -70° = 110°

<h3>Angles where chords cross</h3>

The angle made by two chords is half the sum of the arcs intercepted by those chords. Here, that means ...

70° = 1/2(60° +x) ⇒ x = 140° -60° = 80°

The arc w completes the circle of 360°, so we have ...

w +x +79° +60° = 360° ⇒ w = 360° -219° = 141°

Finally, z is the average of w and 79°:

z = (w +79°)/2 = (141° +79°)/2 = 110° . . . as above

8 0

2 years ago

A local health clinic surveys its patients about their waterdrinking habits. It found the data is normally distributed,the mean

satela [25.4K]

In this case, we'll have to carry out several steps to find the solution.

Step 01:

Data:

water drinking habits:

mean = 62 ounces

standard deviation = 5.2 ounces

Step 02:

normally distribution:

95% ===> 2 SD

(62 + 5.2 + 5.2) ounces = 72.4 ounces ==> + 2 SD

(62 - 5.2 - 5.2) ounces = 51.6 ounces ==> - 2 SD

The answer is:

51.6 ounces - 72.4 ounces

3 0

1 year ago