(easy math question please help) find the value of x question #9

Awnser:

9,12,18

Step-by-step explanation:

you have to add the smallest numbers together and it has to be greater that the greatest number.

9+12= 21

21>18

Answer:

Step-by-step explanation:

Given function:

This is exponential decay because:

and it represents 70% decrease every hour (if it is time in hours)

Correct choice is C

Answer:

C

Step-by-step explanation:

Both models represent half of the gymnasium, its just that one is vertical and one is horizontal. Both are basically correct. C is the right answer since it says both models are correct. Each class also does occupy 1/12 of the gymnasium since they get 1/6 of 1/2 of the gymnasium. Of means multiply so 1/6 * 1/2 = 1/12.

Answer:

The unknown number is 12

Step-by-step explanation:

2(x+26)=76

or,x+26=76÷2

or,x=38-26

Therefore,x=12.

Answer:

6

Step-by-step explanation:

We need to find the slope

We have 2 points

(0,0) and (1,6)

m = (y2-y1)/(x2-x1)

   = (6-0)/(1-0)

   = 6/1

  = 6

y = 6x

The constant of proportionality is 6

Answer:

The constant of proportionality is 6.

Step-by-step explanation:

(0,0) and (1,6)

m = (y2-y1)/(x2-x1)

→ (6-0)/(1-0)

→ 6/1

So, y = 6x.

Answer:

15x+30y-220

Step-by-step explanation:

Answer:

21:50

Step-by-step explanation:

We need to find the ratio of 420 m to 1 km.

We know that,

1 km = 1000 m

So,

The ratio becomes,

[tex]\dfrac{420\ m}{1\ km}=\dfrac{420\ m}{1000\ m}\\\\=\dfrac{42\ m}{100\ m}\\\\=\dfrac{21}{50}[/tex]

So, the required ratio is 21:50.

Answer:

3, 9, 15, 21

Step-by-step explanation:

3x1=3 v

3x2=6

3x3=9 v

3x4=12

3x5=15 v

3x6=18

3x7=21 v

Skip one each time, 3, 9, 15, 21

Answer:

[tex]pressure = \frac{force}{area} \\ = \frac{40}{5} \\ = 8 \: N {m}^{ - 2} [/tex]

Answer:

2

Step-by-step explanation:

first nomber,

19247

second nomber,

7429

third nomber,

924

fourth nomber,

42

fifth nomber,

2

Answer:

2

Step-by-step explanation:

no. 1 is 19247

no. 2 is 7429 ,so the last four number of 19247 are reply

no. 3 is 924 ,so the last three number of 7429 are reply

no. 4 is 42 ,so the last two number of 924 are reply

no. 5 is 2,so, the last number of 42 are reply

Answer:

The expression f(0) represents the y-intercept on the graph of f(x). The y-intercept of a graph is the point where the graph crosses the y-axis.

Step-by-step explanation:

HOPE IT HELPS ❤

Answer:

12

Step-by-step explanation:

Doing the test rn

Answer:

45 = 3z

Step-by-step explanation:

On the left we have 45

On the right we have 3 z's

45 = 3z

Answer:

45 = 3 z

Step-by-step explanation:

LHS = RHS.

45 = 3 z

Answer:

he got payed 5 dollars an hour

Answer:

Y(n) = 400(2.5)^n

Y = 3,814,697 rice weevils

16.1 weeks

Step-by-step explanation:

To predict the population of rice weevil for any week after the start of the study ; wwe use an exponential function for this purpose :

y(n) = A(1 + r)^n

Where;

Y(n) = population at week n

r = growth rate ; n = number of weeks

A = initial population at the start of the study

r = 150% = 1.5

Hence, we have the equation :

Y(n) = 400(1 + 1.5)^n

Y(n) = 400(2.5)^n

B.)

Population after 10 weeks

n = 10

Y(10) = 400(2.5)^10

Y = 400 * 9536.7431640625

Y = 3814697.265625

Y = 3,814,697 rice weevils

C)

When population will reach 1,000,000,000

We have :

1,000,000,000 = 400(2.5)^n

1000000000 / 400 = 2.5^n

2500000 = 2.5^n

Take the log of both sides :

log(2500000) = nlog(2.5)

6.3979400 = n * 0.3979400

n = 6.3979400 / 0.3979400

n = 16.077649

n = 16.1 weeks approximately

Answer:

-15b+31

Step-by-step explanation:

f(x)=-5x+6

f(3b-5)=-5(3b-5)+6=-15b+25+6=-15b+31

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

Explanation:

Angles EGD and BGF are vertical angles. Both are unknown and equal to x.

Notice how angle AGD is adjacent to angle CGD. These two angles form a straight angle (180 degrees) and angle CGD is a right angle. That must mean AGD is also a right angle.

Angles AGE and EGD must add to 90 degrees since AGD is 90

----------

(angleAGE)+(angleEGD) = (angle AGD)

(30) + (x) = 90

x = 90-30

x = 60

Answer:

C. It can make decision making more efficient.

Step-by-step explanation:

Answer:

2nd one

Step-by-step explanation:

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

Answer:

A

Step-by-step explanation:

Answer:

Plane

Step-by-step explanation:

There are three undefined geometric terms:

1. Point: A point is just a location. It has no size.

2. Line: A line has no width and extends infinitely in one dimension.

3. Plane: A plane extends infinitely in two dimensions.

So the answer is plane.

Answer:

5^2 + h^2 = 10^2

Step-by-step explanation:

This is a clear example of the Pythagorean Theorem, a relation of all sides in a right triangle. The equation itself is a^2 + b^2 = c^2. By simply plugging in the given values into the triangle, you would get the answer.

Answer:

To determine the height we will use a² = b²+c²

(10m)²= (5m)²+(h)²

<=> 100m²=25m²+h²

<=> 100m²-25m²=75m²=h²

<=> √ 75m² = h = 8,660m

Answer: 1: Combine multiplied terms into a single fraction

2: Multiply the numbers

3: Add the numbers

4: Solution

= 43/2

Step-by-step explanation:

Answer:

v = 43/2.

Step-by-step explanation:

2/7v - 1/7 + 14 = 20

2/7 v = 20 - 14 + 1/7

2/7 v = 6 1/7

2/7 v = 43/7

v = 43/7 / 2/7

v = 43/7 * 7/2

v = 43/2

Answer:

[tex] \cos(x) = \frac{24}{30} [/tex]

OPTION C

Answer:

B. 12

Step-by-step explanation:

A to E = 1         1

C to G = 1        2

D to H = 1        3

B to F = 1         4

A to B = 1         5

E to F = 1          6

C to D = 1         7

G to H = 1         8

A to C = 1         9

E to G = 1         10

B to D = 1         11

F to H = 1         12

12 line segments

Answer:

The triangle's perimeter is 61.77 inches.

Step-by-step explanation:

Since an altitude is drawn from the vertex of an isosceles triangle, forming a right angle and two congruent triangles, and as a result, the altitude cuts the base into two equal segments, and the length of the altitude is 26 inches, and the length of the base is 9 inches, to find the triangle's perimeter the following calculation must be performed:

Isosceles triangle = 2 equal sides

To obtain the value of the sides, the Pythagorean theorem must be applied on the right triangle formed with the altitude.

(9/2) ^ 2 + 26 ^ 2 = X ^ 2

4.5 ^ 2 + 26 ^ 2 = X ^ 2

20.25 + 676 = X ^ 2

√ (20.25 + 676) = X

√696.25 = X

26.38 = X

26.3865 x 2 + 9 = X

52.77 + 9 = X

61.77 = X

Therefore, the triangle's perimeter is 61.77 inches.

Answer:

y=6

the first equation:

3(1)+y=9

3+y=9

y=6

the second equation:

y= -4(1)+10

y= -4+10

y=6

I hope this helped! :)

Answer:

[tex]f(6)=-21\\\\g(-3)=-52[/tex]

Step-by-step explanation:

When given the following two functions,

[tex]f(x) =-3x-3\\g(x)=2x^3+2[/tex]

One is asked to evaluate the functions for, (f(6)) and (g(-3)). One can do this by substituting the values (6) into the function (f) and (-3) into the function (g). These values will replace the parameter (x).

[tex]f(6)=-3(6)-3\\[/tex]

Simplify,

[tex]f(6)=-18-3\\f(6)=-21[/tex]

Now repeat this process for the guncion (g(x)) to evaluate for (g(-3))

[tex]g(-3)=2(-3)^3+2[/tex]

Simplify,

[tex]g(-3)=2(-27)+2\\g(-3)=-54+2\\g(-3)=-52[/tex]

Answer:

Drinking coffee and drinking water are independent events because

P(A|B)=P(A)and P(B|A)=P(B)

Step-by-step explanation:

Drinking coffee and water are independent events. People can choose to have both, none or any one. It is on their own will. Those who drink coffee can also drink water. The total of people who drink coffee may include those who drink water also.

Answer: x =8

Step-by-step explanation:

-12 + 9x = 60 (the other angles are 60, 180 - (60 + 60) = 60)

9x = 72

x = 8

Answer:

x = 8°

Step-by-step explanation:

We know that sum of interior angles of a triangle is 180°, therefore;

(Angle 1) + (Angle 2) + (Angle 3) = 180°

(60)° + (60)° + (-12 + 9x)° = 180°

120° + (-12 + 9x) = 180°

108° + 9x° = 180°

9x = 180 - 108

9x = 72°

x = 72/9

x = 8°

Therefore the value of x is 8°.

Hope this helps!