What are all the correct equations

Answer:

x = 7

Step-by-step explanation:

Given

3(2x - 9) = 15 ( divide both sides by 3 )

2x - 9 = 5 ( add 9 to both sides )

2x = 14 ( divide both sides by 2 )

x = 7

Answer:

D

Step-by-step explanation:

Because that’s the answer Lol

Answer: the second function

Step-by-step explanation:

Answer:

-19/8+5x/8

Step-by-step explanation:

Answer:

912

Step-by-step explanation:

8x19= 152

152x5= 760

760+152=

equal sides of an isosceles triangle are given as 30 cm each if the perimeter of the triangle is 67 cm,find the third sides

Answer:

y=1/5x+12/5

Step-by-step explanation:

The slope is the same

In this triangle it is clear that the unknown side x is the hypotenuse of both the triangles that are being formed . So , let us take any one of the triangles and with it's length let us find the length of their hypotenuse which is side x .

= 5² + 5² = x² ( according to the pythagorean theorem the square on the hypotenuse will be equal to the sum of the squares on the other two legs )

= 25 + 25 = x²

= 50 = x²

= 7.0710678119 = x

But they have given that we have to round it off to the nearest tenths , so ;

= 7.0710678119 will be equal to = 7.10

= 7.1 = x

Therefore , the length of the unknown side x = 7.1 .

Answer:

y = 1

Step-by-step explanation:

3(7) - 2y = 19y

21 - 2y = 19y

21 = 21y

y = 1

Answer:

163          

 ——— = 3.39583

 48            

Step-by-step explanation:

           47

Simplify   ——

           12

Equation at the end of step

1

:

 117    47

 ——— -  ——

 16     12

STEP

2

:

           117

Simplify   ———

           16

Equation at the end of step

2

:

 117    47

 ——— -  ——

 16     12

STEP

3

:

Calculating the Least Common Multiple

3.1    Find the Least Common Multiple

     The left denominator is :       16

     The right denominator is :       12

       Number of times each prime factor

       appears in the factorization of:

Prime

Factor   Left

Denominator   Right

Denominator   L.C.M = Max

{Left,Right}

2 4 2 4

3 0 1 1

Product of all

Prime Factors  16 12 48

     Least Common Multiple:

     48

Calculating Multipliers :

3.2    Calculate multipliers for the two fractions

   Denote the Least Common Multiple by  L.C.M

   Denote the Left Multiplier by  Left_M

   Denote the Right Multiplier by  Right_M

   Denote the Left Deniminator by  L_Deno

   Denote the Right Multiplier by  R_Deno

  Left_M = L.C.M / L_Deno = 3

  Right_M = L.C.M / R_Deno = 4

Making Equivalent Fractions :

3.3      Rewrite the two fractions into equivalent fractions

Two fractions are called equivalent if they have the same numeric value.

For example :  1/2   and  2/4  are equivalent,  y/(y+1)2   and  (y2+y)/(y+1)3  are equivalent as well.

To calculate equivalent fraction , multiply the Numerator of each fraction, by its respective Multiplier.

  L. Mult. • L. Num.      117 • 3

  ——————————————————  =   ———————

        L.C.M               48  

  R. Mult. • R. Num.      47 • 4

  ——————————————————  =   ——————

        L.C.M               48  

Adding fractions that have a common denominator :

3.4       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

117 • 3 - (47 • 4)     163

——————————————————  =  ———

        48             48

Final result :

 163          

 ——— = 3.39583

 48            

Answer:

n = 6

Step-by-step explanation:

5n = 30

Divide each side by 5

5n/5 = 30/5

n = 6

Answer:

n = 6

Step-by-step explanation:

5n = 30

Divide each side by 5

5n/5 = 30/5

n = 6

Answer:

They are similar

Step-by-step explanation:

(Let me know if you need me to be more specific)

Answer:  The slope is 0

Step-by-step explanation:

The slope is the difference between the y coordinates divided by the difference between the x coordinates.

Y:  9 - 9 = 0

x: -7-2 =   -9

0/-9= 0  

Answer: 3, 323 metric tons

Step-by-step explanation:

Answer:

£972.41

Step-by-step explanation:

1 x 0.5 =1.05

1.05x 800 ^4= £972.405

rounded is  £972.41

First off there is not any choices, second off the answer is it would take

165.5 minutes

It will take the balloon 165 minutes 30 seconds to reach an altitude of 11,000

A function can be defined as the outputs for a given set of inputs.

The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.

Given, A weather balloon is launched in Texas from an altitude of 240 feet above sea level, and the balloon rises at a constant rate of 65 feet per minute.

Let the height of the balloon is h(t) where t represents time in minutes.

∴ The function that represents the height of the balloon at any point of time is h(t) = 65t + 240.

So, time required to reach the balloon an altitude of 11,000 feet is,

11000 = 65t + 240.

65t = 11000 = 240.

65t = 10760.

t = 10760/65.

t = 165.5 minutes or 165 minutes 30 seconds.

learn more about functions here :

https://brainly.com/question/12431044

#SPJ2

Answer:

1/9

Step-by-step explanation:

This is basically 1/3*1/3. The way you do this is multiply the top numbers together and then the bottom numbers, so 1*1=1 and 3*3= 9 so your answer is 1/9. Hope this helps you!

Answer:

titutex=cos\alp,\alp∈[0:;π]

\displaystyle Then\; |x+\sqrt{1-x^2}|=\sqrt{2}(2x^2-1)\Leftright |cos\alp +sin\alp |=\sqrt{2}(2cos^2\alp -1)Then∣x+

1−x

2

∣=

2

(2x

2

−1)\Leftright∣cos\alp+sin\alp∣=

2

(2cos

2

\alp−1)

\displaystyle |\N {\sqrt{2}}cos(\alp-\frac{\pi}{4})|=\N {\sqrt{2}}cos(2\alp )\Right \alp\in[0\: ;\: \frac{\pi}{4}]\cup [\frac{3\pi}{4}\: ;\: \pi]∣N

2

cos(\alp−

4

π

)∣=N

2

cos(2\alp)\Right\alp∈[0;

4

π

]∪[

4

3π

;π]

1) \displaystyle \alp \in [0\: ;\: \frac{\pi}{4}]\alp∈[0;

4

π

]

\displaystyle cos(\alp -\frac{\pi}{4})=cos(2\alp )\dotscos(\alp−

4

π

)=cos(2\alp)…

2. \displaystyle \alp\in [\frac{3\pi}{4}\: ;\: \pi]\alp∈[

4

3π

;π]

\displaystyle -cos(\alp -\frac{\pi}{4})=cos(2\alp )\dots−cos(\alp−

4

π

)=cos(2\alp)…

1

Top

Display

Answer: the night temperature was 3 degrees below the afternoon temperature

Step-by-step explanation:

Answer:

Domain: { 16, 13 , 8 }

Range: { −16, 16, 7 }

Step-by-step explanation:

The domain is the set of all the values of  x.

The range is the set of all the values of  y .

Answer: 5.18

Step-by-step explanation:

Z= 3.06+2.12=5.18

Answer:

$8.05(7.5)= $60.375

Step-by-step explanation:

Just multiply the two together.

I think you would round to $60.38

but 60.375 is the exact answer

Answer:

the answer is 2x^2 − x − 2

Answer:

5+5=10

6+6=12

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

5+5=10

6+6=12

add them up

22

=======================================================

Explanation:

Start by graphing the system of equations

[tex]\begin{cases}x-y = 6\\2x+5y = -4\\ x = -1\end{cases}[/tex]

This is represented as the boundary lines. The first two equations produce solid boundary lines. The last equation makes a dashed boundary line. We use solid boundary lines whenever "or equal to" is involved with the inequality sign.

Note how 7 separate regions result from the intersecting lines. Check out the diagram below to see the different regions.

--------------------------

To graph [tex]x-y \le 6[/tex] which is the same as [tex]y \ge x-6[/tex], we will shade in regions 1, 2, 4 and 5. All of these regions are above the boundary line y = x-6

Ignore any other region (3,6, and 7) since they don't make the first inequality true.

Of regions 1, 4, 5 and 6, only regions 4 and 5 are below the boundary line 2x+5y = -4. So we cross off regions 1 and 6.

We're now down to just two regions: 4 and 5

We cross off region 5 because it is not to the right of the vertical line x = -1

All that's left is region 4. Any point in region 4 makes all of the three original inequalities true.

So the solution will only have region 4 shaded like choice D shows.

Answer:

b = c/a

Step-by-step explanation:

Answer:

-4 and 4

Step-by-step explanation:

You count between the zeros like when you jump on a number line or just don't count the zero

_ _ _ _ _ _ _ _

     -4, -3, -2 ,-1, 0, 1, 2 ,3, 4

I'm not 100% so plz tell if right!! I'm 90% sure.

Answer:

1 and -7

Step-by-step explanation:

Answer:

what u need help with?

Step-by-step explanation:

Answer:

the slope is 0.6

Step-by-step explanation: ΔY /ΔX