3 years ago

Evaluate 7 + (-3x^2) for x = 0. 4

Mathematics

1 answer:

Goshia [24]3 years ago

6 0

Step-by-step explanation:

By substituting x = 0.4 in equation 7 + (-3x^2)

= 7 - 3 (0.4)^2

First solving o.4^2 as per the rule of BODMAS

= 7- 3 (0.16)

Now multiplying -3 with 0.16

= 7 - 0.48

= 6.52 THIS IS THE ANSWER

You might be interested in

How fast did the plane descend?

ohaa [14]

Answer:

5 meters per second

Step-by-step explanation:

First you must find the slope of the graph. Take the rise/run of the function. The graph starts at 8500 meters and goes down to 7500 meters in 200 seconds. the difference between the change in meters is 1000 meters and the change in seconds is 200 seconds. That is 1000/200. This can be simplified to 5/1 which is 5 meters per second.

5 0

3 years ago

Read 2 more answers

Plz help fast. What is the value of x?

beks73 [17]

Answer is 7.b because of the angles

3 0

2 years ago

In kite ABCD, AB = BC and CD = DA. AB = (3x + 4), BC = x + 8, CD = y + 7, and DA = 2y + 5, find the perimeter of the kite

lana [24]

3x + 4 = x+ 8 > 3x - x = 2x > 2x + 4 = 8 > 8 - 4 = 4 > 2x / 2 crosses out > 4 / 2 = 2 > x=2
2y + 5 = y + 7 > 2y - y = y > y+ 5 = 7 > 7-5= 2 > y=2

the perimeter of the kite is 4

8 0

3 years ago

453.2 divided by 14 (Round to the nearest tenth)

Bond [772]

Answer:

${453.2 \div 14} \\ = \frac{453.2}{14} \\ \\ = { \boxed{32.4}}$