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Andreas93 [3]
3 years ago
8

What are the vertex, axis of symmetry, maximum or minimum value, and range of y = 3x2 + 6x − 1?

Mathematics
1 answer:
Basile [38]3 years ago
6 0

Answer: 29

Step-by-step explanation: You have 3+2 that = 5 then you get that 5 and x that by 6 that = 30 then you - 30 from 1 then you have 29

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A 44 ft ladder leans against a building so that the top of the ladder touches the building at a point 27 ft above the ground. To
Veseljchak [2.6K]
Answer is option 4. working out attached

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4 0
3 years ago
trent, pam, and linda will work together to paint a poster that is 4 feet long Each student will paint an equal length of the po
Tasya [4]
The whole length of the poster is 4 feet. There are three people who will paint an equal length, so this means that we need to divide the 4 feet of the poster between 3 people.

4 ÷ 3 <span>≈ 1.3

Each student will paint 1.3 feet, or 1 foot and 4 inches of the poster.</span>
8 0
3 years ago
2. You spin a spinner that has eight equal-sized sections numbered one to eight. Which event is
hodyreva [135]

Answer:

Getting a multiple of 5 is the least likely outcome.

Step-by-step explanation:

We spin a spinner that has 8 equal-sized sections numbered 1 - 8.

We have to find which is the least likely to occur.

The number is even when outcomes are 2,4,6 or 8.

Number of outcomes = 4

If the number is less than 3, the number of possible outcomes are 2 that is 1 and 2.

If the number is greater than 3 , number of possible outcomes is 5 which are 4,5,6,7 and 8.

If the number is a multiple of 5, only 1 outcome is there which is 5 itself.

Hence getting a multiple of 5 is the least likely outcome.

6 0
3 years ago
It is given that y is directly proportional to x.
Lerok [7]

Answer:-4

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The administrator of a nursing home would like to do a time-and-motion study of staff time spend per day performing nonemergency
WINSTONCH [101]

Answer:

32 days must be sampled to test the proposed hypothesis.

Step-by-step explanation:

Consider the provided information.

The average number of person-hours per day spent on these task was \mu_0=16.

The actual value of μ is 12 hours or less i.e μ=12

She wants a test having α=0.05

The probability of a type II error of at most β=0.10 and σ=7.64.

δ = μ-μ0

   = 12-16

  = -4

Now use the formula for calculating the sample size:

N=\frac{(Z_{\alpha}+Z_{\beta})^2\sigma^2}{\delta^2}

Substitute the respective values.

N=\frac{(Z_{0.05}+Z_{0.1})^2(7.64)^2}{(-4)^2}

N=\frac{(1.6449+1.2816)^2(7.64)^2}{16}

N=31.2437958482\approx 32

Hence, 32 days must be sampled to test the proposed hypothesis.

5 0
3 years ago
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