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3 years ago

Can someone help me? I’ll reward points + brainalist

Mathematics

1 answer:

Tpy6a [65]3 years ago

4 0

Answer:

Step-by-step explanation:

The given box in both questions are cuboid.

Question 3:

Volume of cuboid = length * width * height

= 3 * 3 * 5 = 45 units.

Question 4:

Volume of cuboid = length * width * height

= 4 * 2 * 6 = 48 units

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180 red marbles to 145 blue marbles

saul85 [17]

Answer:

325

Step-by-step explanation:

180+145 xDDDD

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3 years ago

Which of the following is the midsegment of abc Help me please

Likurg_2 [28]

Answer:

Option C -LM

Step-by-step explanation:

Mid segment is a straight line joining the midpoints of two segments.A midsegment of a triangle is a segment connecting the midpoints of two sides of a triangle.In the given triangle ABC ,L and M are midpoints of sides AB and CB.LM is the line joining the midpoints of sides AB and CB.

LM is called the midsegment of triangle ABC.

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3 years ago

Read 2 more answers

Frame the polinomial whiose sum product of zeros are -3and2

Virty [35]

Answer:

P(x) =x² + 3x + 2

Step-by-step explanation:

You have two zeros, so the polynomial is a quadratic.

The general form of a quadratic is

P(x) = ax² + bx + c

Sum of zeros = -b

Product of zeros = c

The polynomial becomes

P(x) = x² - (sum of zeros)x + (product of zeros)

Sum of zeros = -3 and product of zeros = 2, so

P(x) = x² + 3x + 2

The graph of P(x) (below) shows that the zeros are at -2 and -1

Sum of zeros = -2 + (-1) = -3

Product of zeros = -2 × (-1) = 2

8 0

3 years ago

For a new Blueberry muffin recipe, Ms. Morrison used 44 blueberries for 8 muffins. What fraction of blueberries are in each muff

lesya [120]

Answer:

2over11

Step-by-step explanation:

8 over 44

3 0

2 years ago

Read 2 more answers

A public health official is planning for the supplyof influenza vaccine needed for the upcoming flu season. She wants to estimat

Marizza181 [45]

Answer:

$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

Step-by-step explanation:

We know that the sample proportion have the following distribution:

$\hat p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

In order to find the critical value we need to take in count that we are finding the interval for a proportion, so on this case we need to use the z distribution. Since our interval is at 90% of confidence, our significance level would be given by $\alpha=1-0.90=0.1$ and $\alpha/2 =0.05$ . And the critical value would be given by:

$z_{\alpha/2}=-1.64, z_{1-\alpha/2}=1.64$

The margin of error for the proportion interval is given by this formula:

$ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}$ (a)

And on this case we have that $ME =\pm 0.04$ and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}$ (b)

We assume that a prior estimation for p would be $\hat p =0.5$ since we don't have any other info provided. And replacing into equation (b) the values from part a we got:

$n=\frac{0.5(1-0.5)}{(\frac{0.04}{1.64})^2}=420.25$

And rounded up we have that n=421

5 0

4 years ago