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3 years ago

Use the graphing calculator to graph the quadratic function y=2x^2 + 2x -40. what are the zeros of the function

Mathematics

1 answer:

ahrayia [7]3 years ago

3 0

Answer:

The zeroes of this function are x=-5 and x=4

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25% discount for AED 4000

Lostsunrise [7]

Answer:

The 25% discount on AED 4000 will be: 1000 AED

Step-by-step explanation:

Given

The amount = 4000

Discount = 25%

In order to determine a 25% discount on the amount AED 4000, all we need means is to multiply 25/100 or (0.25) by 4000.

i.e

Discount amount = 25% of 4000

= 25/100 × 4000

= 0.25 × 4000

= 1000 AED

Thus, the 25% discount on AED 4000 will be: 1000 AED

5 0

3 years ago

A dance floor is in the shape of a rectangle. it is 25 meters long and 24 meters wide. what is its perimeter

Valentin [98]

The perimeter is 98 meters.

6 0

3 years ago

20 POINTS , ALSO GIVING BRAINLIEST , PLEASE HURRY !!

liq [111]

Answer:

.5236

Step-by-step explanation:

Formula for sphere volume:

V = $\frac{4}{3} \pi r^{3}$

substiture 0.5 for r:

$\frac{4}{3} \pi 0.5^{3}$ = .5236

5 0

3 years ago

The runner has to race for 21km. She has to finish race before 1h 40min. What avarage speed She has to run to gain such goal?

abruzzese [7]

Answer:

The rate of the runner is 3.5 meters per second.

Step-by-step explanation:

To get this answer in meters per second, we first have to convert each of the terms into either meters or seconds. We can do that by multiplying by unit rates.

21 km * 1000 = 21,000 meters

1 hour * 3600 = 3,600 seconds

40 minutes * 60 = 2,400 seconds

Now we divide the meters by the total number of seconds to get the rate.

21,000 meters / (3,600 + 2,400) secs

21,000 meters / 6,000 secs

3.5 meters per second.

7 0

3 years ago

What is the probability that a student writes chicken

xxMikexx [17]

Answer:

Chicken

Step-by-step explanation: 7829219882 / 278892828891271289289

depends on the situation like this one at times :)

7 0

3 years ago