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madreJ [45]
2 years ago
11

A^2 + 3b ÷ c - 2d A = 3 , B = 8 , C = 2, D = 5 please help me!

Mathematics
1 answer:
s2008m [1.1K]2 years ago
6 0

Answer:

11

Step-by-step explanation:

Substitute the given values into the expression

3² + 3(8) ÷ 2 - 2(5)

= 9 + 24 ÷ 2 - 10 ← evaluate division before addition/ subtraction

= 9 + 12 - 10

= 21 - 10

= 11

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-HELPPP!
suter [353]

Answer:

p(x) = A(x - 4i)(x + 4i)(x - 3)(x + 3), with A = 1.

it matches

8 0
2 years ago
What is the slope of a line that passes through the points (2,5) and (4,9)
ahrayia [7]

Answer:

2

Step-by-step explanation:

slope = difference of y/ difference of x

m = (9-5) / (4-2) = 4/2 = 2

8 0
3 years ago
Help with #7 please I don’t understand
quester [9]

Answer:

A

Step-by-step explanation:

(2x^2 + 3x - 4) (x + 4)


FOIL.


2x^2 times x = 2x^3

3x times x is 3x^2

-4 times x = -4x

2x^2 times 4 = 8x^2

3x times 4 = 12 x

-4 times 4 = -16


Combine like terms to get 2x^3 + 11x^2 + 8x - 16.

4 0
3 years ago
Read 2 more answers
Hey can you please help me posted picture of question
zimovet [89]
The parabola opens towards left, this means the squared term is y with negative coefficient.

The vertex is given to be the point (-1,-3). So, the general equation of the parabola will be like:

x=-a(y+1)^{2}-3

where a is any constant.

In the given options, only 1 such equation is available and that is option C.

So the answer to this question is option C
5 0
3 years ago
For which of the following equations are x = 5 and x = –5 both solutions?
Minchanka [31]
Short Answer B
Argument
A
A will give you x = +/- 5i 
x^2 + 25 = 0
x^2 = - 25       Take the square root.
sqrt(x^2) = +/- sqrt(-25)
x = +/- (5)i which is a complex number.


B
Is the answer
x^2 = 25
sqrt(x)^2 = sqrt(25)
x = +/- 5

C
Can't be factored just by looking at it. You can show that C is not true just by putting 5 into the equation
f(x) = x^2 + 10x - 25
f(5) = 25 + 10*5 - 25
f(5) = 50
C is not true.

D
D can be eliminated as C was
f(x) = x^2 - 5x - 25
f(5) = -25 ( l'll let you show this is not true). 5 is not a solution because it does not make f(x) = 0
6 0
3 years ago
Read 2 more answers
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