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3 years ago

6

Write the equation in general form. x^2 +6x = -2

1 answer:

Anastaziya [24]3 years ago

3 0

Answer:

x^2 + 6x + 2 = 0

Step-by-step explanation:

Just add 2 to both sides, obtaining x^2 + 6x + 2 = 0; this is in "general form" for a quadratic equation.

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Can a Scalene triangle be a isosceles triangle?<br><br> A: Always<br> B: Never<br> C: Sometimes

arsen [322]

A scalene triangle can never be an isosceles triangle. How? Well, let's take a look at the definition of a scalene triangle. In short, a scalene triangle is a classification of a triangle that does not have any congruent sides. On the other hand, an isosceles triangle is a triangle in which its legs are both congruent. Therefore, if a scalene triangle has two congruent legs, it wouldn't even be a scalene triangle, but instead it would be an isosceles triangle. Hope this helped!

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3 years ago

How many cups are in a gallon°ω°

Evgen [1.6K]

Answer:

16 cups

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

ms. jeffers is splitting $775 among her three sons. of the oldest gets twice as much as the youngest and the middle son gets $35

Angelina_Jolie [31]

The oldest son will get $370, the middle will get $220 and the youngest will get $185.

Step-by-step explanation:

Given,

Total amount to be split = $775

Let,

Oldest son's share = x

Middle son's share = y

Youngest son's share = z

According to given statement;

x+y+z=775 Eqn 1

the oldest gets twice as much as the youngest

x = 2z Eqn 2

the middle son gets $35 more than the youngest

y = z+35 Eqn 3

Putting value of x and y from Eqn 2 and 3 in Eqn 1

$2z+(z+35)+z=775\\2z+z+35+z=775\\4z=775-35\\4z=740\\$

Dividing both sides by 4

$\frac{4z}{4}=\frac{740}{4}\\z=185$

Putting z=185 in Eqn 2

$x=2(185)\\x=370$

Putting z=185 in Eqn 3

$y=185+35\\y=220$

The oldest son will get $370, the middle will get $220 and the youngest will get $185.

Keywords: linear equation, substitution method

Learn more about substitution method at:

#LearnwithBrainly

4 0

3 years ago

Those 2 questions I need help with . find sec θ and tanθ

Zielflug [23.3K]

STEP - BY - STEP EXPLANATION

What to find?

The the value of secθ.

Given:

(4, 3)

⇒(x, y) = (4, 3)

Step 1

Draw a sketch.

Step 2

Substitute the values into the trig. ratio formula below.

$tan\theta=\frac{opposite}{adjacent}$

From the sketch above, opposite = 3 and adjacent = 4

$tan\theta=\frac{3}{4}$

Step 3

Find the value of the hypotenuse side using Pythagoras theorem.

let h be the hypotenuse side.

$\begin{gathered} h^2=4^2+3^2 \\ \\ =16+9 \\ \\ =25 \\ \\ h=5 \end{gathered}$

Hence, hypotenuse = 5

Step 4

Substitute the values into the formula below:

$\begin{gathered} cos\theta=\frac{adjacent}{hypotenuse} \\ \\ =\frac{4}{5} \end{gathered}$

But,

$sec\theta=\frac{1}{cos\theta}=\frac{1}{\frac{4}{5}}=\frac{5}{4}$

ANSWER

secθ= 5/4

tanθ=3/4

7 0

1 year ago

Which of the following would be a solution to the system of inequalities below?

shutvik [7]

I think it should be C

7 0

2 years ago