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3 years ago

Solve the equation. 7z2 = 112

Mathematics

1 answer:

stellarik [79]3 years ago

6 0

Answer:

Step-by-step explanation:

7z^2=112

Divide by 7 on both sides

x^2=16

Take the square root of both sides

x=4

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Compute the value of the discriminant and give the number of real solutions of the Quadratic equation 3x^2+9x-1=0 PLSS HELPP

FrozenT [24]

Answer:

Discriminant = 93, two real roots/solutions

Step-by-step explanation:

Discriminant = b² - 4ac = (9)² - 4(3)(-1) = 81 + 12 = 93

Since 93>0, the quadratic equation has two real roots/solutions.

3 0

3 years ago

The height of a cuboid is 12cm,the volume is 1200cm3 find the side of the of a cuboid

Tasya [4]

Answer:

area=volume/height

area=1200cm cubed/12cm

area=100cm squared

5 0

2 years ago

A fair die is rolled in a board game to determine how many spaces a player can move on their turn. It has one of the numbers 1,2

Jet001 [13]

Answer:

(a)6 (b)3 (c)0.5

Step-by-step explanation:

Given a fair die with the numbers 1,2,3,4,5, or 6 on each of its faces.

Event A is the event of rolling an even number

Event B is the event of rolling an odd number.

(a)The sample space for the outcomes in this experiment is {1,2,3,4,5,6}

There are 6 outcomes in the sample space.

n(S)=6

(b)

Event A is the event of rolling an even number

Sample space of A = {2,4,6}

There are 3 outcomes in event A.

n(A)=3

(c)The probability of event A

$P(A)=\dfrac{n(A)}{n(S)} =\dfrac{3}{6} =0.5$

P(A) =0.5 is the probability that you choose an even number.

6 0

3 years ago

A certain computer can perform a maximum number of operations per second. If this computer is running at 23% of the maximum and

N76 [4]

Answer:

I believe 457 operations

8 0

3 years ago

. Describe the transformation of the function, y = x + 4, from y = x.

USPshnik [31]

There are two interpretations we could go for:

Adding 4 to the end means we add 4 to each y coordinate (since y = x). This shifts the entire line 4 units up
Replacing x with x+4 means the xy axis is shifted 4 units to the right. If the line y = x is held completely still while the axis moves, then it gives the illusion the line is moving 4 units to the left

Check out the diagram below.

Point A on the red line y = x has two locations it could end up. If we follow method 1, then point A shifts upward to point B. Do this to every point on the red line and the entire red line shifts up 4 units.

Or if you decide to shift 4 units to the left (method 2), then point A moves to point C's location. Doing this to every point on the red line shifts the entire line 4 units to the left.

3 0

2 years ago