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3 years ago

15

What is the perimeter of the triangle? units

1 answer:

Brut [27]3 years ago

7 0

On my screen this projects wayyy too bright but to find this answer you need to count every square unit and if it's a half then add it to another half.

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A garden table and a bench cost $783 combined. The garden table costs $83 more than the bench. What is the cost of the bench?

sertanlavr [38]

Answer:

$557.5

Step-by-step explanation:

783/2

391.5 + 83 (more) =

557.5

8 0

2 years ago

What is 9 (4x^2 - 3) simplified?

Ahat [919]

Answer: 36x^2-27

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Solve x2 + 4x – 4 = 0

Damm [24]

Answer:

Quadratic Equations! Yes!

Step-by-step explanation:

Now, there are three methods to solving this:

1.Quadratic Formula

2.Factoring

3. Completing the square

Now, Based on the answers, I think it would be better if we used Quadratic Formula, as you cannot get the answer easily with factoring, and I'm a bit rusty on completing the square.

So, Quadratic Formula! To solve it using this method, we have to find x using this: $x=\frac{-b+-\sqrt{b^{2} -4ac} }{2a}$ (the +- before the square root means it could be both positive or negative)

Where a, b are coefficients and c is a term(in a quadratic equation form: $ax^{2} +bx+c=0$ )

So, we just have to input the stuff from our equation into the formula!

$x=\frac{-4+-\sqrt{32} }{2}$

Now, we can simplify the square root of 32 into 4 times the square root of 2

$x=\frac{-4+-4\sqrt{2} }{2}$

And, we can divide 2 from it all!

$x=-2+-2\sqrt{2}$

So, there you have it! The Answer is C, or 3.

Hope this helps!

4 0

3 years ago

Find the value of cos J rounded to the nearest hundredth, if necessary.

WARRIOR [948]

$\green{\huge{\red{\boxed{\green{\mathfrak{QUESTION}}}}}}$

Find the value of cos J rounded to the nearest hundredth

$\bold{ \red{\star{\blue{GIVEN }}}}$

HYPOTHESES= 13

PERPENDICULAR= 12

BASE = ?

$\bold{\blue{\star{\red{TO \: \: FIND}}}}$

$\cos(j) = ?$

$\bold{ \green{ \star{ \orange{FORMULA \: USED}}}}$

PYTHAGORAS THEROM
$\cos(j) = \frac{ BASE}{HYPOTENUSE}$

$\huge\mathbb{\red A \pink{N}\purple{S} \blue{W} \orange{ER}}$

<h2>FOR BASE:- </h2>

${h}^{2} = {p}^{2} + {b}^{2}$

${13}^{2} = {12}^{2} + {x}^{2} \\ 169 - 144 = {x}^{2} \\ 25 = {x}^{2} \\ \sqrt{25} = x \\ 5 = x = base$

<h2>NOW :- </h2>

$\cos(j) = \frac{ BASE}{HYPOTENUSE}$

$\cos(j) = \frac{5}{13} \\ \cos(j) = 0.34$

3 0

3 years ago

Read 2 more answers

Use ABC to find the value of sin A. <br> a. 12/37<br> b. 37/12<br> c. 35/37<br> d. 12/35

FromTheMoon [43]

Answer:

a. 12/37

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you ...

Sin = Opposite/Hypotenuse

sin(A) = BC/AB = 12/37

4 0

4 years ago