PLEASE HELP!!! ASAP!!! Thank youuuu

Mathematics

1 answer:

photoshop1234 [79]3 years ago

5 0

I'm assuming that the signs inside each circle is its sign. So, negative sign in the circle means it is a negative number and vice versa.

a.) Given:
7 circles w/ negative signs, 4 out of 7 circles are crossed out.

- 7 - 4 = -11

b) Given:
7 circles with positive sings and 5 circles with negative signs. The 5 negative circles are crossed out.

+ 7 - (-5) = 7 + 5 = 12

I'm not sure if I am correct but I answered based on what I understand from the given data.

You might be interested in

Your goal is to have an emergency fund equal to 3 months living expenses. Your living expenses are $700 a month. Your take-home

anyanavicka [17]

6.4 months Because 10% of $1,100 is $110

multiply 110 by 6.4 and you get 704

so 6.4 months

6 0

2 years ago

A ball is dropped from a height of 600 feet. The function describing the height of the ball at t seconds after it dropped is <im

bekas [8.4K]

The average velocity of the object after during the first three seconds is: 48m/s

The time at which the instantaneous velocity equals the average velocity within the first three seconds is 1.5 seconds.

<h3>What is instantaneous and average velocities?</h3>

Instantaneous velocity is the speed of an object at a particular point in time.

Average velocity is the velocity of an object after covering a certain distance for a period of time

Analysis:

Given

initial height = 600 feet

Height with respect to time = f(t) = -16 $t^{2}$ + 600

a) Height at t = 0 = 600 feet

Height at t = 3 seconds = f(3) = -16 $(3)^{2}$ + 600 = 456 feet

Distance travelled = 600 - 456 = 144 feet

Average velocity = distance travelled/time taken = 144/3 = 48 feet/seconds

b) instantaneous velocity at time t = $\frac{df(t)}{dt}$ = $\frac{d(-16t^{2} + 600) }{dt}$ = -32t

when instantaneous velocity equal average velocity

-32t = -48

t = 1.5 seconds

In conclusion, the Average velocity after 3 seconds is 48 feet per seconds and the time taken for the average velocity to equal the instantaneous velocity is 1.5 seconds.

Learn more about instantaneous and Average velocity: brainly.com/question/13372043

#SPJ1

7 0

2 years ago

PLS HELP 20 POINTS!!

Nitella [24]

Answer:

1. 144km

2. 96 km

3. 200 km

Step-by-step explanation:

see image