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3 years ago

A B C D PLEASE HELP ME NOW 15 POINTS

Mathematics

1 answer:

Mama L [17]3 years ago

6 0

Answer:

carry on

Step-by-step explanation:

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Donna is on her way home in her car. She has driven

kakasveta [241]

50 miles is her total length of drive

5 0

3 years ago

Cassandra cut 5/16 inch of the top of a photo and 3/8 inch off the bottom. How much shorter is the total height of the photo now

IRINA_888 [86]

3/8 -> 6/16

5+16 = 21

21/16 = 1 5/16

1 5/16 in shorter

6 0

3 years ago

What requirements are necessary for a normal probability distribution to be a standard normal probability distribution?Choose t

-BARSIC- [3]

Answer:

B.The mean and standard deviation have the values of mu equals 0and sigma equals 1

Step-by-step explanation:

The mean and standard deviation have the values of µ = 0 and σ = 1.

This is the requirement for any normal distribution curve to fulfil in order to be a standard normal probability distribution.

3 0

3 years ago

The height of a fountain’s water stream can be modeled by a quadratic function. Suppose the water from a jet reaches a maximum h

Grace [21]

Answer:

h(d)= -2d^2 +4d +6

Step-by-step explanation:

Vertex (1,8)

Landing Point (3,0)

Applying the vertex formula, a quadratic equation can be described by its vertex v(x,y) as follows:

$h=a*(d-x)^2 +y$

Since the vertex in this situation is at v (1,8):

$h=a*(d-1)^2 +8$

To solve for 'a', apply the other given point (landing point) into the equation:

$0=a*(3-1)^2 +8\\4a= - 8 \\a=-2$

Expanding the equation yields:

$h=-2*(d-1)^2 +8\\h=-2(d^2 -2d +1) +8\\h= -2d^2 +4d +6\\$

5 0

4 years ago

Banabas must pay his ex-wife an amount of R350 000 in two years’ time. Calculate the amount that he must invest today to have th

White raven [17]

Answer:

He must invest R297 521 today.

Step-by-step explanation:

The compound interest formula is given by:

$A(t) = P(1 + \frac{r}{n})^{nt}$

Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.

Banabas must pay his ex-wife an amount of R350 000 in two years’ time.

This means that $t = 2, A(t) = 350000$