The diagonals of a rhombus are 24 cm, 32 cm. Its perimeter is

Mathematics

1 answer:

Marysya12 [62]2 years ago

7 0

Answer:

80cm

Step-by-step explanation:

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In which sentence is the underlined word an indefinite article? A. Our dog ate the bone quickly. B. One bird flew over us. C. I

Yanka [14]

It is c i believe hope this is right

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3 years ago

If I walk 3/4 mile to work and 3/4 mile home each day, how long will it take me to walk 3 miles?

anastassius [24]

Answer:

2 days

Step-by-step explanation:

for a day you walk 1.5 mile (0.75 + 0.75)

so it will only take 2 days

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3 years ago

What is 9| - z/3| + 6 < 30

Reil [10]

9|⁻¹/₃z| + 6 < 30
9|⁻¹/₃z| + 6 < ±30
9|⁻¹/₃z| + 6 < 30 or 9|⁻¹/₃z| + 6 > -30
9(¹/₃z) + 6 < 30 or 9(¹/₃z) + 6 > -30
3z + 6 < 30    or    3z + 6 > -30
- 6   - 6 - 6 - 6
3z < 24    or       3z > -24
3 3   3   3
z < 8      or       z > -8

Solution Set: {z|z < 8 or z > -8} and (-∞, 8) or (-8, ∞)

4 0

2 years ago

Read 2 more answers

Final exam scores are normally distributed with a mean of 74 and a standard deviation of 6. Approximately, what percentage of fi

notka56 [123]

Answer:

81.86%

Step-by-step explanation:

We have been given that final exam scores are normally distributed with a mean of 74 and a standard deviation of 6.

First of all we will find z-score using z-score formula.

$z=\frac{x-\mu}{\sigma}$

$z=\frac{68-74}{6}$

$z=\frac{-6}{6}=-1$

Now let us find z-score for 86.

$z=\frac{86-74}{6}$

$z=\frac{12}{6}=2$

Now we will find P(-1<Z) which is probability that a random score would be greater than 68. We will find P(2>Z) which is probability that a random score would be less than 86.

Using normal distribution table we will get,

$P(-1$