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Brut [27]
3 years ago
15

How many roots does a quadratic have if it does not cross the x-axis? = 2 real roots

Mathematics
1 answer:
steposvetlana [31]3 years ago
4 0
False — if it doesn’t cross, it has no real roots.
You might be interested in
What is the equation of the line that passes through the point (-5, 4) and has a
Scilla [17]

Answer:

y=-3/5(x+5)+4

Step-by-step explanation:

y=m(x-h)+k

y=-3/5(x+5)+4

5 0
3 years ago
PROVING THEOREMS OF SQUAD can someone help me pleasee ASAP​
AfilCa [17]

Answer:

40 units

Step-by-step explanation:

For a square, all the sides are equal and the interior angles are equal and all equal to 90. Hence;

m<BOJ = 90 degrees

m<BOJ = 4x - 6

Equating both to get x;

4x - 6 = 90

4x = 90+6

4x = 96

x = 96/4

x = 24

Since all the sides are equal, hence BO = JO = 2x-8

JO = 2x - 8

Substitute x = 24 into JO

JO = 2(24) - 8

JO = 48 - 8

JO = 40

Hence the measure of JO is 40 units

6 0
3 years ago
4) Sumalee had some candy to give to her
jonny [76]

Answer:

31 pieces

Step-by-step explanation:

6 + 5 x 5 = 31

5 0
3 years ago
A function is created to represent the costs of living per person in the family. What restrictions would be made to the domain?
Nitella [24]

Let

x-------> the number of persons in the family

f(x)------> the function represent the cost of living

we know that

The domain of the function  would only include positive integers, because the number of persons can not be negative or a fraction

The range of the function would only include positive numbers, because the cost can not be negative

therefore

<u>the answer is the option B</u>

The domain would only include positive integers.

7 0
3 years ago
Read 2 more answers
What is the area of the shaded region between the two z-scores indicated in the standard normal curve shown below. z=-1.23 z=0.8
Reika [66]

Answer:

Correct option A: 0.6874

Step-by-step explanation:

Hello!

To calculate the area within the interval [-1.23; 0.83], you have to subtract to the probability accumulated till the lower value to the probability accumulated to the higher value, symbolically:

P(Z≤0.83)-P(Z≤-1.23)

You have to use the Z table to look for the corresponding values of probability. The negative value is in the left entry and the positive value is in the right entry. The first column shows the integer and first decimal value, the second decimal value is in the first row, you cross both values and find the value of probability.

P(Z≤0.83)-P(Z≤-1.23)= 0.7967 - 0.1093= 0.6874

I hope it helps!

6 0
3 years ago
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