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MaRussiya [10]
2 years ago
13

I’m looking for number 3 on the picture attached

Mathematics
1 answer:
Nataliya [291]2 years ago
8 0
25 is the answer for number 3
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Solve ( x - 2)( x + 7) =0
lara31 [8.8K]

Answer:

x = 2 or

x = -7

Step-by-step explanation:

(x - 2)(x + 7) = 0

x - 2 = 0

Add 2 to both sides

x - 2 + 2 = 2 + 0

x = 2

OR

x + 7 = 0

Subtract 7 from both sides

x + 7 - 7 = 0-7

x = -7

Therefore

x = 2 or

x = -7

6 0
3 years ago
the population of a type of local dragonfly can be found using an infinite geometric series where a1= 65 and the common ratio is
LiRa [457]
Sum of  infinite series of a GS  is  a1 / (1-r)

so here it is  65 / (1 - 1/6)  =  65 / 5/6  = 65*6 / 5 = 78  answer
7 0
3 years ago
Question down below need help fast
shtirl [24]

Answer: E. 40

Step-by-step explanation:

The x-intercept of a line is when the y coordinate is equal to zero, so input zero in for y and solve for x to find the x-intercept.

1/2x + 3/5(0) = 20

1/2x = 20    

 x = 40

8 0
3 years ago
What are all of the x-intercepts of the continuous function in the table? (0, 8) (–4, 0) (–4, 0), (4, 0) (–4, 0), (0, 8), (4, an
crimeas [40]

Answer:

The  x-intercepts of the continuous function in the table are:

(-4,0) and (4,0).

Step-by-step explanation:

We are given a table of values of the continuous functions as:

(0, 8) (–4, 0) (–4, 0), (4, 0)

The x-intercept of a function is a point on the x-axis i.e. where y=0. (i.e. The x-intercept is where a line crosses the x-axis ).

Here y=f(x).

Hence from the given set of values we have:

f(x)=0 when x= -4 and x=4.

Since we are given the points as (-4,0) and (4,0).

Hence, the x-intercepts of the function f(x) is: (-4,0) and (4,0).


5 0
2 years ago
A parachutist's speed during a free fall reaches 75 meters per second. What is this speed in feet per second? At this speed, how
Alex

<span>Polly uses a probability simulator to pull colored ribbons from a bag 60 times and to flip a coin 60 times. The results are shown in the tables below:

</span>

<span><span>Color of RibbonNumber of Times Pulled</span><span><span>White25</span><span>Green14</span><span>Orange21</span></span></span>

<span><span>HeadsTails</span><span>3822</span></span>

<span>Using Polly's simulation, what is the probability of pulling an orange ribbon and the coin landing on tails?</span>
3 0
3 years ago
Read 2 more answers
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