!!!! Help! I don’t know this I’m so bad at math please help !!!

Answer:

The function is:

a)

If x = 300, the value of y is:

b)

If y = 500, the value of x is:

c)

In this case k = 2

If k increases, and for example k = 3, it will cause the size of balloon increase 3 times per temperature (or decrease as temperature decreases).

Answer:

sq rt of 66 is 8.12 so 8.1 closest

Answer:

8.1

I hope it will help you a lot.

HOPE your day goes great.

Answer:

I'm pretty sure it's 12.55

Step-by-step explanation:

12.55 because

8 makes the 7 a and that 8 makes the 4 a 5

Step-by-step explanation:

+-2,-(-2)etc dont know if this is corect tho

Answer:

how are u?

Step-by-step explanation:

7x7=49x1023=50127

Answer:

I'm not exactly sure yet but i believe the 3rd choice is best!

Comment!

(Soon i will give reasoning and answer or change it unless i am right)

Tell me stuff in comments i'll see what i can do.

Step-by-step explanation:

Hope i helped!

Thanks,

Your helper :)

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Answer: D

Step-by-step explanation:

You just have to test pi/6

[tex]\dfrac{30}{cos(6*\dfrac{Pi}{6})} =\dfrac{30}{cos(\Pi)} =-30[/tex]

Answer:

2 2/5 inches

Step-by-step explanation:

3/5 x 4

3/5 x 4/1

3/5 x 4/1 = 12/5

12/5 = 2 2/5

Answer:

Step-by-step explanation:

2(b-9) > 20

b - 9 > 20/2

b - 9 > 10

b > 10+9

b > 19

Answer:

$3.378 or $3.38 rounded

Answer: I had this question on test I put D

I haven’t gotten it graded

Step-by-step explanation:

Answer:

-7 - 8n

Step-by-step explanation:

Another way would be to rearrange the terms = -7 - 8n

Answer: 81

Step-by-step explanation: divided 135 bultos entre 15 bancas, te da 9, entonces 9 x 9 son 81

Tenemos un problema simple sobre algebra.

Encontraremos que para constrir 9 bancas se necesitan 81 bultos de cemento.

La información dada es:

Se necesitan 135 bultos de cemento para construir 15 bancas.

Entonces la cantidad de bultos que se necesitan para cada banca está dada por el cociente entre la cantidad de bultos usados y la cantidad de bancas que salen de eso.

Esto es:

135/15 = 9

Es decir cada banca necesita 9 bultos de cemento.

Por lo tanto, para construir 9 bancas se necesitaran 9 veces 9 bultos de cemento:

9×9 = 81 bultos de cemento.

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Step-by-step explanation:

N = 0.733t + 8.398

N = 0.733(1971) + 8.398

N = 1,453.141

Step-by-step explanation:

Solution,

According to question,

N=0.733t + 8.398

When t= 1971, then

N=0.733×(1971) + 8.398

N=1453.141

Answer:

1

Step-by-step explanation:

( 1 )( 1 ) = 1

3-2=1

1.5-0.5= 1

1x1=1

Answer:

x = -12

Step-by-step explanation:

4x - 2(x + 1) = 3x + 10

First, you use distribution for - 2(x + 1) to better simplify teh equation:

4x - 2x - 2 = 3x + 10

Then, you subtract 4x - 2x:

2x - 2 = 3x + 10

Next, you subtract 2x from both sides of the equation to get x on one side:

(2x - 2x) - 2 = (3x - 2x) + 10

-2 = x + 10

Finally, you subtract 10 on both sides to get your answer:

(-2 - 10) = x (+ 10 - 10)

-12 = x

x = -12

The coordinate points of smaller and larger x -value from the origin is (-7, 0 ) and (7, 0) respectively.

The given point which is 7 unit from the origin, is equivalent to the radius of a circular curve.

The general equation is written as follows;

[tex]x^2 + y^2 = 7^2[/tex]

The corresponding positive and negative values of x are obtained when y = 0

[tex]x^2 + 0 = 7^2\\\\x^2 = 49 \\\\x = +/- \ \ \sqrt{49} \\\\x = +/- \ 7[/tex]

The coordinate of smaller x -value becomes;

(x, y) = (-7, 0)

The coordinate of larger x-value becomes;

(x, y) = (7, 0)

Thus, the coordinate points of smaller and larger x -value from the origin is (-7, 0 ) and (7, 0) respectively.

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Answer:

1. x = -4 or x = 5

2.  x = 3 or x = -7

Step-by-step explanation:

1. x^2 - x - 20 = 0

⇒ x^2 - x - 20 = 0

⇒ x^2 + 4x - 5x - 20 = 0

⇒ x (x + 4) - 5 (x + 4) = 0

⇒ (x + 4) (x - 5) = 0

⇒ (x + 4) = 0 or (x - 5) = 0

⇒ x = -4 or x = 5 ------> final solution

2. x^2 + 4x - 21 =0

⇒ x^2 + 4x - 21 = 0

⇒ x^2 - 3x + 7x - 21 = 0

⇒ x (x - 3) + 7 (x - 3) = 0

⇒ (x - 3) (x + 7) = 0

⇒ (x - 3) = 0 or (x + 7) = 0

⇒ x = 3 or x = -7  ------> final solution

Answer: 240

Step-by-step explanation: there was 300 and 60 went missing that means there was 240 left

Answer:

There are 240 stickers

Step-by-step explanation:

At first there were 240 stickers, but then 60 went mssing, so we cant tell it is a subtracton problem. You should have set your problem like this:

300-60=?

After you should have gotten the answer 240.

In concluson, there are now 240 stickers.

Answer:

I hope it will help you....

Answer:

2.9

Step-by-step explanation:

9 is in the tens place, and 3 is in the hundreds place. If the number in the hundreds place is less than the number in the tens place, the tens place stays the same. You just shorten the number.

So 2.932789 becomes 2.9

Answer:

(3) f(x) = x - 1 (4)  f(x) = x  (5) f(x) = 4x + 31 (6) f(x) = 2x - 3

Step-by-step explanation:

General Theorem:

When any curve shifted towards the left then the equation of shifted curve is obtained by adding the shifted value to the abscissa and vice versa for shifting the curve towards the right.

(3) f(x)=x-5: Translation 4 units to the left.

The equation will changes to f(x) = x + 4 - 5

                                                  f(x) = x - 1

(4) f(x) = x + 2; translation 2 units to the right

The equation will changes to f(x) = x - 2 +2

                                                  f(x) = x

(5) f(x) = 4x +31 + 2; translation 2 units down

The equation will changes to f(x)+2 =4x + 31 + 2

                                                  f(x) = 4x + 31

(6) f(x) = 2x - 9; translation 6 units up

The equation will changes to f(x) - 6 =2x - 9

                                                  f(x) = 2x - 3

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Step-by-step explanation:

f(x) = 8 - 3x

when x =3, then

f(3) = 8 - 3×3

=8-9

=-1

Answer:

Step-by-step explanation:

f(x)=8-3x       If x=3

Substitute 3 in x,

f(3)=8-3(3)

f(3)=8-9

f(3)=-1 ANS

Hope it helps;)

Answer:

x = 1/2

Step by step explanation:

Two numbers a and b are each greater than zero.

i.e a > 0 and b > 0

And;

[tex] \sqrt{a} \: = \: \sqrt[3]{b} [/tex]

Since the square root of a is equal to cube root of b then,

a = b = 1

[tex] {a}^{2x \: - \: 1} \: = \: b[/tex]

[tex] {1}^{2x \: - \: 1} = {1}^{0} [/tex]

2x - 1 = 0

x = 1/2

Two numbers are 'a' and 'b'.

And a > 0, b > 0

[tex]\sqrt{a}=\sqrt[3]{b}[/tex]

[tex]a^{\frac{1}{2} }=b^{\frac{1}{3}}[/tex]

[tex]a=(b)^{\frac{2}{3} }[/tex]

We have to find the value of [tex]x[/tex] if [tex]a^{2x-1}=b[/tex],

By substituting the value of [tex]a[/tex] in the given expression,

[tex](b^{\frac{2}{3}})^{2x-1}=b[/tex]

Now use the laws of exponents,

[tex]b^{\frac{2}{3}(2x-1)}=b[/tex] [Since, [tex](a^m)^n= a^{mn}[/tex]]

By comparing the exponents on both the sides,

[tex]\frac{2}{3}(2x-1)=1[/tex]

[tex]2(2x-1)=3[/tex]

[tex]4x-2=3[/tex]

[tex]4x=5[/tex]

[tex]x=\frac{5}{4}[/tex]

[tex]x=1.25[/tex]

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Answer:

It is integer and rational .....

Step-by-step explanation:

Hope it helps

Answer:cap. Cap

Step-by-step explanation:cap. Cap

Answer:

82.6

Step-by-step explanation:

First you add 53 and 29 which equals 82 then you do 4 plus 2 which equals 6 and so the answer is 82.6

[tex]\red{\bigstar}[/tex] The final evaluation of the given expression is [tex]\large\leadsto\boxed{\rm\purple{- 40}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

✯ Substitute the given values of each variable in the expression.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\bold{ax^2 + bx + c}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf (-2) \times (-3)^2 + (5) \times (-3) + (-7)[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf (-2) \times (9) + (-15) + (-7)[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ [tex]\sf - 18 - 15 - 7[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

★ [tex]\bold\red{\large{- 40}}[/tex]

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

[tex]\pink{\bigstar}[/tex] Therefore, the the final evaluation of the given expression is -40.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

[tex]\pink{\bigstar}[/tex] Hence, the Option. C

[tex]\huge\text{Hey there!}[/tex]

[tex]\huge\boxed{\mathsf{ax^2 + bx + c}}[/tex]

[tex]\huge\boxed{\mathsf{= -2(-3)^2 + 5(-3) + (-7)}}[/tex]

[tex]\huge\boxed{\mathsf{= (-2)(9) - 15 - 7}}[/tex]

[tex]\huge\boxed{\mathsf{= -18 - 15 - 7}}[/tex]

[tex]\huge\boxed{\mathsf{= -33 - 7}}}[/tex]

[tex]\huge\boxed{\mathsf{= -40}}[/tex]

[tex]\huge\boxed{\rm{Therefore, your \ answer\ is: \boxed{\mathsf{Option\ C. -40}}}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

Answer:

The interior angle would measure [tex]108^{\circ}[/tex]. Assuming that this polygon is regular, it would contain [tex]5[/tex] sides.

Step-by-step explanation:

An exterior angle in a polygon is supplementary with the interior angle that shares the same vertex with the exterior angle. In other words, the sum of these two angles would be [tex]180^{\circ}[/tex].

In this question, the exterior angle measures [tex]72^{\circ}[/tex]. Therefore, the interior angle that shares the same vertex with this [tex]72^{\circ}\![/tex] exterior angle would measure [tex](180^{\circ} - 72^{\circ})[/tex], which is [tex]108^{\circ}[/tex].

The sum of all interior angles in a polygon with [tex]n[/tex] sides (regular or not) is [tex]180\, (n - 2)[/tex] degrees.

All the interior angles in a regular polygon are equal. Hence, in a regular polygon with [tex]n[/tex] sides (and hence [tex]n\![/tex] vertices,) each of the [tex]n\!\![/tex] interior angles would measure [tex]180\, (n - 2) / n[/tex] degrees.

Assume that the polygon in this question is regular. Again, let [tex]n[/tex] be the number of sides in this polygon. Each interior angle would measure [tex]180\, (n - 2) / n[/tex] degrees. However, it was also deduced that an interior angle of this polygon measures [tex]108^{\circ}[/tex]. That is:

[tex]\displaystyle \frac{180 \, (n - 2)}{n} = 108[/tex].

Solve for [tex]n[/tex]:

[tex]180\, n - 2 \times 180 = 108\, n[/tex].

[tex](180 - 108)\, n = 360[/tex].

[tex]\begin{aligned}n &= \frac{360}{180 -108} \\ &= \frac{360}{72} \\ &= 5\end{aligned}[/tex].

In other words, if this polygon is regular, it would contain [tex]5[/tex] sides.