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4 years ago

What does x =? please help me

Mathematics

1 answer:

Zielflug [23.3K]4 years ago

6 0

Answer

This part is already solved in the question:

The graph is shown at the bottom

The given equation is:

6 - 2x = 3

-2x = 3-6

-2x = -3

2x = 3

x = 3/2

x = 1.5

This can also be solve by seeing the graph. The equation which was given to us was y = 6 - 2x, and in this part we have to find the value of 3 = 6 -2x , which means y=3.

We can see in the graph that y = 4 when x = 1 and y = 2 when x = 2, so as y=3 is the midpoint of 4 and 2, the values corresponding to y = 3 should be midpoint of 1 and 2 i.e 1.5

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In the given figure find the area of the shaded region if AC = 24 CM AB = 7cm and O is the centre

wariber [46]

See the attached figure to better understand the problem

we know that

<span>The inscribed angle in a circle measures half of the arc it comprises.

</span>in this problem
the inscribed angle= ∠ACB
and the arc it comprises measures 180°
then
the ∠ACB=180°/2-------> ∠ACB=90°

<span>applying the Pythagorean theorem
</span>AC²+CB²=AB²-------> AB²=24²+7²-------> AB²=625------> AB=25 cm

the diameter of circle is AB
radius=25/2--------> r=12.5 cm

[the area of a half circle]=pi*r²/2------> pi*12.5²/2--------> 245.44 cm²

[area of triangle ABC]=AC*CB/2--------> 24*7/2-------> 84 cm²

[the area of the shaded region]=[the area of a half circle]-[area of triangle ABC]

[the area of the shaded region]=245.44-84-------> 161.44 cm²

the answer is
the area of the shaded region is 161.44 cm²

5 0

3 years ago

Read 2 more answers

After being arranged and simplified which of the following equations could be solved using the quadratic formula?

AlekseyPX

Answer:

Polynomial equations that can be solved with the quadratic formula have the following properties, assuming all like terms have been simplified.

1. degree = 2 (i.e. the highest power equals exactly two)

2. the linear term (e.g. 4x, or -5x...) and constant term (e.g. 5, -30, pi, etc.) may or may not be present.

Now let's simplify and examine the given equations, and see if each can be solved with the quadratic formula:

The degree (highest power) is three, so it is not "exactly two". NO.

The degree (highest power) is two, so it is "exactly two". YES.

The degree (highest power) is one, so it is not "exactly two". NO.

The degree (highest power) is two, so it is "exactly two". YES.

Note that it is very important to simplify the equations before checking the degree.

Step-by-step explanation:

7 0

3 years ago

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The y-value of y = tan(x) when x = -90° and x = 90° is 0.<br><br> True<br><br> False

Lyrx [107]

We know, Tanx = sinx / cosx
Tan 90 = sin90 / cos 90
Tan 90 = 1/0

As zero is in the denominator, it can't be defined.

In short, Your Answer would be: "False"

Hope this helps!

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4 years ago

The ratio of Shauntay's cards to Jessica's cards is 5 to 3. After Shauntay gives Jessica 12 of her cards, both girls have the sa

Zepler [3.9K]

Answer:

They have 48 cards.

Step-by-step explanation:

let s be the number of Shauntay's cards and j be the number of Jessica's cards.

The ratio of Shauntay's cards to Jessica's cards is 5 to 3, then

(1) $\frac{s}{j}$ = $\frac{5}{3}$

After Shauntay gives Jessica 12 of her cards, both girls have the same number of cards, then

(2) s-12 =j+12.

From (2), we get s= j+24. If we put j+24 instead of s in (1) we get:

$\frac{j+24}{j}$ = $\frac{5}{3}$

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After Shauntay gives Jessica 12 of her cards, Shauntay and Jessica would have 48 cards.

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3 years ago

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Answer:

D) all of the above

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3 years ago