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slamgirl [31]
3 years ago
6

Which quadratic equation is equivalent to (x + 2)2 + 5(x + 2) – 6 = 0?

Mathematics
2 answers:
Dahasolnce [82]3 years ago
5 0

Answer:

u2 + 5u – 6 = 0 where u = (x + 2)

Darya [45]3 years ago
3 0
Quadratic is in the form
ax^2+bx+c=0

so distribute and stuff and simplify
remember
a(b+c)=ab+ac

(x+2)^2+5(x+2)-6=0
remember order of opertaions
(x+2)(x+2)+5(x+2)-6=0
x^2+4x+4+5x+10-6=0
add like terms
x^2+9x+8=0
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What happens to the function f(x)=x4 when it becomes f′(x)=x4+5?
elena-s [515]
I think it moves 5 units to the right Im not sure tho!!
8 0
3 years ago
Question 3.<br> X and Y are<br> supplementary angles. Given X=72°, find the value of Y.
Natalija [7]

Answer:

<h2>Y = 108°</h2>

Step-by-step explanation:

Since X and Y are supplementary angles it means that the sum of their angles add up to 180°

To find Y , add X and Y and equate it to 180° and solve

That's

X + Y = 180

Y = 180 - X

X = 72°

Y = 180 - 72

We have the final answer as

<h3>Y = 108°</h3>

Hope this helps you

4 0
3 years ago
What is the combined cost of of the sweatshirt and hat shown
irina1246 [14]

Answer:

$44.89

Step-by-step explanation:

Add 25.15 + 19.74 = 44.89

7 0
3 years ago
Read 2 more answers
Help with MATH please
evablogger [386]

Answer:

Step-by-step explanation:

4). By applying cosine rule for angle R,

    cos(∠R) = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

    cos(33°) = \frac{x}{19} [Equation]

    x = 19cos(33°)

       = 8.39

5). By applying sine rule,

    cos(20°) = \frac{\text{Opposite side}}{\text{Hypotenuse}}

    cos(20°) = \frac{15}{x} [Equation]

    x = \frac{15}{\text{cos}20}

    x = 15.96

6). By applying tangent rule,

    tan(40°) = \frac{\text{Opposite side}}{\text{Adjacent side}}

    tan(40°) = \frac{15}{x} [Equation]

     x = \frac{15}{\text{tan}40}

     x = 17.88

5 0
3 years ago
Choose the function whose graph is given below.
Natalija [7]

Answer:

option C is correct, i.e. y = sec(x).

Step-by-step explanation:

Given is a graph of a trigonometric function.

We have four choices to select from:-

A. y = cot(x)

B. y = tan(x)

C. y = sec(x)

D. y = csc(x)

We can check the y-intercept from the graph that is (0, 1).

Substituting x=0 in each option as follows:-

A. y = cot(0) = ∞.

B. y = tan(0) = 0.

C. y = sec(0) = 1.

D. y = csc(0) = ∞.

Hence, option C is correct, i.e. y = sec(x).

6 0
4 years ago
Read 2 more answers
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