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const2013 [10]
3 years ago
15

I Need Help Pleaseeeee

Mathematics
1 answer:
kicyunya [14]3 years ago
3 0
What is the question
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GIVING BRAINLIEST TO WHOEVER GETS IT RIGHT
ahrayia [7]

Answer:

x=3             x = -1

Step-by-step explanation:

f(x) = x^2 − 2x − 3

Set the function equal to zero

0 = x^2 − 2x − 3

Factor

What two numbers multiply to -3 and add to -2

-3 *1 = -3

-3+1 = -2

0 = (x-3)(x+1)

Using the zero product property

x-3 =0     x+1 =0

x=3             x = -1

7 0
3 years ago
Read 2 more answers
A sphere has a radius of 7 millimeters. A second sphere has a radius of 4 millimeters. What is the difference of the volumes of
sattari [20]
The difference would be 371 1/3 





3 0
3 years ago
Fred has 36 strawberries and 42 blueberries. He wants to use them to garnish desert so that each desert has the same number of b
DENIUS [597]
To do this problem you must find the GCF or the greatest common factor of 36 and 42. For example 36 can be made by 1 and 36 2 and 18 3 and 12 4 and 9 and 6 and 6. 42 can be made by 1 and 42 2 and 21 3 and 14 and 6 and 7. The highest common factor is 6. So, if you put 6 berries on all of the desserts, you will put 6 strawberries on 6 tarts and 6 blueberries on 7 tarts. That’s a total of 13 desserts
7 0
3 years ago
A jogging trail measures 252 feet from start to finish. Cheryl ran the trail 2 times.
sergiy2304 [10]
Cheryl ran the trail twice, so:

252 x 2 = 504

She ran 504 feet. Now convert 504 feet to yards:

3 feet : 1 yard
504 feet : ? yards

Answer: 168 yards
Hope it helped :)
5 0
3 years ago
Read 2 more answers
PLEASE I NEED HELP INSTANTLY <br> I WILL GIVE BRAINLY AND THANKS
Goryan [66]

Answer:

so you're going to need to find the slope. in order to do that use (y2-y1)/(x2-x1)

(7-(-2))/(0-8)

simplify

9/-8

simplify -9/8

now using y=mx+b, we need to find b. so we can plug in the coordinates of (0,7) or (8,-2). let's use (8,-2) because it involves more math.  

y=mx+b

-2=(-9/8)(8)+b

multiply (-9/8) by 8 to get -9

-2=-9+b

add 9 to both sides

7=b

so our equation is now

y=-(9/8)x+7

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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