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Ksenya-84 [330]
3 years ago
5

I need help ASAP!

Mathematics
1 answer:
Readme [11.4K]3 years ago
7 0

Answer:

i) Equation can have exactly 2 zeroes.

ii) Both the zeroes will be real and distinctive.

Step-by-step explanation:

x^{2} - 7x + 3 is the given equation.

It is of the form of quadratic equation a^{2} + bx + c and highest degree of the polynomial is 2.

Now, FUNDAMENTAL THEOREM OF ALGEBRA

If P(x) is a polynomial of degree n ≥ 1, then P(x) = 0 has exactly n roots, including multiple and complex roots.

So, the equation can have exact 2 zeroes (roots).

Also, find discriminant D = b^{2}  - 4ac = (-7)^{2}  - 4(1)(3) = 49 - 12 = 37

⇒ D = 37

Here, since D > 0, So both the roots will be real and distinctive.

You might be interested in
A map's scale is 1 inch : 3.5 miles.
mylen [45]

Answer:

28

Step-by-step explanation:

1 in.=3.5

so 8×3.5=28

so it is 28 miles

3 0
3 years ago
Find the area of the figure below<br><br> A.288.62<br> B.266.22<br> C.186.66<br> D.236.6
Archy [21]

Answer:

A. 288.62

Step-by-step explanation:

Area of two triangles = 15.3 * 10.4 = 159.12

Area rectangle = hypotenuse triangle * 7

hypotenuse = √108.16 + 234.09

Hypotenuse = 18.5

Area rectangle = 18.5 * 7 = 129.5

129.5 + 159.12 = 288.62

Answer = A. 288.62

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

8 0
3 years ago
What is the step by step process of this question
drek231 [11]
Hello there!

In order to solve this system of equations, you would first need to make one equation have a negative variable.

2a + 3b = -1
(3a + 5b = -2) -1

2a + 3b = -1
-3a - 5b = 2

Now, we have to modify the equations for it to be able to cancel out a variable. To do this, you would need to look at the least common multiple.

2: 2, 4, 6, 8, 10
3: 3, 6, 9, 12, 15

One least common multiple would be 6 so let's modify the equation!

(2a + 3b = -1) 3
(-3a - 5b = 2) 2

6a + 9b = -3
-6a - 10b = 4

Now, let's cancel out the variable and solve for b.

9b = -3
-10b = 4

-1b = 1
b = -1

In order to solve for a, just plug in the b into one equation and solve for a.

2a + 3(-1) = -1
2a - 3 = -1
2a = 2
a = 1

The answer would be a = 1 and b = -1


7 0
4 years ago
On the trip, Jerry had his cruise control set at 60mi/h for 4 hours.
Bess [88]

We are given that Jerry had his cruise control set at 60mi/h for 4 hours.

The rate of change is the second name of slope.

We are given rate of 60 miles per hour.

Thereofore, slope would be just 60.

And because it's keep 60 miles per hour for next 4 hours that is constant for next four hours.

Therefore it would stay positive.

So, we can say

1. Slope = 60

2. Positive.


8 0
4 years ago
Tell whether the angles are complementary or supplementary. then find the value of x
chubhunter [2.5K]

Hello,

In Q5. Being a straight line the angles are supplementary to each other.

And x = 70°

In Q6.

The angles sum up to 90° , so 25x + 30° = 90

25x = 60°

x= 60°/25 = 2.4°

Hope this helps.

7 0
3 years ago
Read 2 more answers
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