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2 years ago

Who kno the answer ? Please help

Mathematics

2 answers:

Aleks04 [339]2 years ago

4 0

It's the last one. .........

Naya [18.7K]2 years ago

3 0

Answer:

Step-by-step explanation:

√39(√6 + 7)

= √234 + 7√39

= √(9 × 26) + 7√39

= 3√26 + 7√39

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Please help due tonight

morpeh [17]

Answer: In pretty sure the answer is C im very much sorry if its not C

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2 years ago

Write the solution in interval notation {x| 3 less than or equal to x}

klemol [59]

Answer:

Set in Interval Notation is: [ 3, ∞)

Step-by-step explanation:

Here, the given expression is:

R = {x| 3 less than or equal to x}

Here, the given set is given in the ROSTER FORM of set.

Now, converting the statement in mathematical form, we get:

R = { x : 3 ≤ x}

So, here: R is the SET OF AL ELEMENTS SUCH THAT each element is either EQUAL TO 3, or GREATER THAN 3.

Writing the st in SET BUILDER FORM, we get:

R = { 3, 4, 5, 6, ....... }

So, R in Interval Notation is: [ 3, ∞)

4 0

3 years ago

Read 2 more answers

Assume that the weight of two year old babies have distribution that is approximately normal with a mean of 29 pounds and a stan

Lana71 [14]

Answer:

25.15 ponds is the weight of two year old baby corresponds to 10th percentile.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 29 pounds

Standard Deviation, σ = 3 pounds

We are given that the distribution of weight of two year old babies is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.10

P(X < x)

$P( X < x) = P( z < \displaystyle\frac{x - 29}{3})=0.10$

Calculation the value from standard normal z table, we have,

$P(z < -1.282) = 0.10$

$\displaystyle\dfrac{x - 29}{3} = -1.282\\x = 25.154 \approx 25.15$

Thus, 25.15 ponds is the weight of two year old baby corresponds to 10th percentile.

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3 years ago

Ingrid walked her dog and washed her car. The time she spent walking her dog was one-fourth the time it took her to wash her car

STALIN [3.7K]

1/4 of 14 is 7/2 which is 3 1/2 which is 3.5

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2 years ago

Read 2 more answers

Sixteen blocks are needed to build a four-step double staircase like

OleMash [197]

16 blocks = 4 steps
x blocks = 50 steps
(16 blocks x 50 steps)/4 steps
= 200 blocks

6 0

2 years ago