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Otrada [13]
2 years ago
8

Find the zeros of f(x) = 7x² + 42.

Mathematics
1 answer:
goblinko [34]2 years ago
7 0

Answer:

0,42

that should be the answer

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Is (0,1) , (1,3) , (2,5), (3,7) a function?​
igomit [66]

Answer:

9

Step-by-step explanation:

3 0
3 years ago
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Shonda made a model of a solid ice cream cone with a spherical scoop of ice cream on top, made out of clay.
IrinaVladis [17]

How sad, that you didn't include the list of choices.

The volume of the cone is    (1/3) x (π) x (radius²)  .

The volume of the sphere is  (4/3) x (π) x (radius³) .


5 0
3 years ago
Find a rational number halfway in between the two numbers. three sevenths and one tenth
strojnjashka [21]
Answer:
The rational number is : 37/140

Explanation:
The first number given is three sevenths which can be written as 3/7
The second number given is one tenth which can be written as 1/10

Now, we want to get the midpoint between these two numbers. The midpoint can be calculated as follows:
midpoint = (first number + second number) / 2
midpoint = [(3/7) + (1/10)] / 2 
midpoint = 37/140

Hope this helps :)
4 0
3 years ago
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Solve the system by substitution.<br> -8x - y = 30<br> -2y = x
masya89 [10]

Answer:

Solution:  (-4, 2),   x= -4 and  y =2

Step-by-step explanation:

-8x - y = 30

-2y = x

Substitute for x

-8*(-2y)   - y = 30

16y  - y = 30

15y = 30

y = 30/15 = 2

Then  x = -2y = -2*(2) = -4

Solution:  (-4, 2),   x= -4 and  y =2

4 0
3 years ago
Help pleasee asaapp im lost
avanturin [10]

Answer:

C

Step-by-step explanation:

The area of a circle is pi * r^2.  The radius is 7 because the diameter is 14 so the radius is 14/2.  The square of 7 is 49.  Pi is approximately 3.14, so 49 * 3.14 is about 154.

4 0
3 years ago
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