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astra-53 [7]
3 years ago
8

Solve the system of equations Algebraically.

Mathematics
1 answer:
grandymaker [24]3 years ago
4 0
Since y=x+3 (given)
Put value of y in equation x+y=(-3)
x+x+3=(-3)
2x=(-6)
x=(-3)
Put x=(-3) in x+y=(-3)
(-3)+y=(-3)
y=0
So, x=(-3)
y=0
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18 of the last 30 cars that passed by you were black. what is the probability the next car will be black. (0.18, 0.6, or 0.30)
Black_prince [1.1K]
18 divided by 30 is 0.6. So I would say that B, or 0.6, is the correct answer.
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The circle's radius is 10 units. Find the length of RH . You may use a calculator's pi button or 3.14 for pi, then round your an
Trava [24]

Answer:

RH = 8.2 units

Step-by-step explanation:

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A group of friends wants to go to the amusement park. They have no more than $155
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Answer:

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4 0
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I really need help. Find a. Round to the nearest tenth.
valina [46]

Answer:

a ≈ 1.8

Step-by-step explanation:

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a = (2 /sin 105°) x sin 60°

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6 0
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Use the drop-down menus to complete the statements about the function p(x) = x(x – 1) + 1. The value of a is . The value of b is
Ludmilka [50]

Answer: The value of a is 1. The value of b is -1. The value of c is 1. The value of the discriminant is -3. The quadratic function will not intersects the  x-axis.

Explanation:

The standard form of a quadratic equation is,

p(x)=ax^2+bx+c

The given function is,

p(x)=x(x-1)+1

It can be written as,

p(x)=x^2-x+1

By comparing this equation with the standard form of quadratic equation. we get,

a=1

b=-1

c=1

The formula for discriminant is,

D=b^2-4ac

D=(-1)^2-4(1)(1)

D=1-4

D=-3

The value of the discriminant is -3.

If D<0, it means the function have no real roots.

If D=0, it means function have one real roots.

If D>0, it means function have two real roots.

Since D<0 it means the function have no real roots. So the function will not intersect the x-axis at any point.

8 0
3 years ago
Read 2 more answers
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