What is the value of X?

Answer:

x=7

Step-by-step explanation:

5x-9=8x-30

8x-5x=-9+30

3x=21

x=21/3=7

Answer:

[tex]y = -\frac{5}{2}x +30[/tex]

Situation: You start out with $30 and spend $2.50 every day on a soda.

Step-by-step explanation:

The equation of a line is y = mx + b

b = y-intercept

m = slope, rise/run

The line crosses the y axis at 30, so b is 30

Now for the slope, rise/run.

Start at 30 on the y-axis and go down to 25, that is a rise of -5. Now you are at (0, 25) on x-axis. Move right to the point (2, 25). The run is 2.

m = -5/2

The equation of the line is y = -5/2x + 30

Answer: The answer is 94.1

Step-by-step explanation:

Because if it's a percent then the total number would be 100%. So if 5.9% were diagnosed and the rest of the 100% weren't, you would do 100-5.9 which would give you an answer of 94.1.

12x ≥ 420

is solution, simple

the answer is 2 2/3
asdasdsadjklhsjkadgashjkvdjbzvxczxc

Step-by-step explanation:

[tex] \frac{ \tan {}^{2} (x) + 1 }{ \tan {}^{2} (x) } = \csc {}^{2} (x) [/tex]

[tex] \frac{ \tan {}^{2} (x) }{ \tan {}^{2} (x) } + \frac{1}{ \tan {}^{2} (x) } = \csc {}^{2} (x) [/tex]

[tex]1 + \frac{1}{ \tan {}^{2} (x) } = \csc {}^{2} (x) [/tex]

[tex]1 + \cot {}^{2} (x) = \csc {}^{2} (x) [/tex]

[tex] \csc {}^{2} (x) = \csc {}^{2} (x) [/tex]

Step-by-step explanation:

let the unknown members be X

At first, the club had 20 + X members

After the first year,

2( 20+X)

The second year,

2( 20 +X/2) +40

The third year,

3[2(20+ X/2) +40]

Total number =

20+X + 2(20+X) + 2( 20 +X/2) +40 +3[2(20+ X/2) +40]

= 20+ X + 40+ 2X + 40 +2X/2 +40 +3[40+2X/2 +40]

= 20+40+X +2X +40+X+ 40 + 3[ 40+40+X]

= 60 +3X +80+X + 3[80+X]

= 140+4X + 240+3X

=380 + 7X

-380=7X

X = -54.3

Answer:

82.30

Step-by-step explanation:

Mark your place, look next door, five or greater add one more!

Answer:

r < 15.5

Step-by-step explanation:

r - 4.5 < 11

  + 4.5   + 4.5

r < 15.5

r can be any number less than 15.5

Answer:

57y

Step-by-step explanation:

23y+34y = 57y

Answer:

Step-by-step explanation:

range is the y values or ouputs

domain is inputs or x vvalues

we can use any x value

but at a certain y value, w can't go below that

find thatminimum

find the vertex

for

ax^2+bx+c

the x value of the vertex is

-b/2a

plug that in to the equaiton to get the y value

-b/2a=-(-6)/(2*2)=6/4=3/2

plug that in

2(3/2)^2-6(3/2)-9

2(9/4)-9-9

9/2-18

4.5-18

-13.5

domain=all real numbers

range=from -13.5 to positive infinity

mark me as brainliest

The domain and range of function is Domain:  (−∞,∞), {x| x ∈ R},

Range: (−∞, 29/2], {y| y ≤ 29/2}.

The constituent parts of a function are its domain and range. A function's domain is the set of all its input values, and the function's range is the possible output. Range, Function, and Domain. If the function f exists: A is the domain and B is the co-domain if every element in A is mapped to elements in B. Under the relation R, the image of the element a is represented by b, where (a, b) ∈ R.

Given function

f(x) = -2x² + 10x + 2.

range is the y values or ouputs

domain is inputs or x values

we can use any x value

but at a certain y value, w can't go below that

find that minimum

find the vertex

for

ax² + bx + c

the x value of the vertex is

-b/2a

plug that in to the equation to get the y value

-b/2a = -10/(-4) = 5/2

substitute value of x

f(x) =  -2x² + 10x + 2

f(x) = -2(5/2)² + 10(5/2) + 2

f(x) =  -25/2 + 50/2  + 2

f(x) = 29/2

Domain:  (−∞,∞), {x| x ∈ R}

Range: (−∞, 29/2], {y| y ≤ 29/2}

Hence, Domain:  (−∞,∞), {x| x ∈ R}

Range: (−∞, 29/2], {y| y ≤ 29/2}.

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Answer:

  a.  y > 2x +3

Step-by-step explanation:

Your worksheet tells you that the > and < symbols will show as a dashed line. That eliminates the last two choices. (They use the ≥ and ≤ symbols.)

The shading is above the line, so the appropriate relation is the one that includes y-values greater than those on the line:

  y > ...    (matches choice a.)

Answer:

.065

Step-by-step explanation:

6 1/2 %

=6.5%

=.065

When changing a percent to a decimal, move the decimal point two places to the left.

OR,

percent means per hundred.

(6 1/2)/100

= (13/2)/100

= 13/2 × 1/100

= 13/200

= .065

OR

6 1/2 %

= 6.5/100

=.065

Answer: true

Step-by-step explanation:

Answer:

33

Step-by-step explanation:

to get from 2 to 3 you add 1

to get from 3 to 5 you add 2

to get from 5 to 9 you add 4

to get from 9 to 17 you add 8

as you can see the numbers are doubling each time you add on

to get the next number double 8 = (8 × 2) = 16

so now 17 + 16 = 33

the next number is 33

[tex]\qquad\huge\underline{\boxed{\sf AnSwEr}}[/tex]

[tex]\small\underline\purple{\sf Given}[/tex]

[tex]\sf\longmapsto side \: of \: a \: square \: park \: = \: 100m \: [/tex]

[tex]\sf\longmapsto width \: of \: the \: pathway \: = 5m \: [/tex]

[tex]

\small\underline\purple{\sf To \: find}

[/tex]

[tex]\sf\longmapsto area \: of \: the \: pathway \: [/tex]

[tex]\small\underline\purple{\sf Solution}[/tex]

[tex]\sf\longmapsto side \: of \: inner \: sq \: = 100 - (5 + 5)[/tex]

[tex]\sf\longmapsto 90m[/tex]

[tex]\sf\longmapsto area \: of \: outer \: sq \: = 90 \times 90 {m}^{2} [/tex]

[tex]\sf\longmapsto 8100 {m}^{2} [/tex]

[tex]\sf\longmapsto area \: of \: pathway \: \: = \: area \: of \: outer \: - \: inner \: [/tex]

[tex]\sf\longmapsto 10000 - 8100[/tex]

[tex]\sf\longmapsto 1900 {m}^{2} [/tex]

Hope it helps ~

Answer:

B

Step-by-step explanation:

That is the answer

Answer:

The answer is B 17:21

Step-by-step explanation:

68:84

68/2=34

84/2=42

34:42 but we can also divide again so 34:42 can't be the simplest form of 68:84

so 34/2=17

42/2=21

17:21

Hi!

The answer to your question would be x

Here's why:

The question is asking to find the variable.

A variable is a letter in a mathematical equation representing an unknown number.

Thus, x would be your variable

I hope this helps!

Have an amazing day/night!

God bless!

It should be noted that this is addition of numbers and the value will be 953.

It should be noted that the question is about an appropriate and interesting word sum for 439 and 514.

This will be Joy has 439 pencils in a bag and Michael has 514 pencils in another bag. How many pencils for they have together?

This will be;

= 439 + 514

= 953.

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Answer:

0.81.

Step-by-step explanation:

1) the required probability Hot_from_Large can be calculated as:

[tex]P(Hot \ | \ Large)=\frac{LargeHot}{LargeHot+LargeCold};[/tex]

2) according to the ratio above:

[tex]P(Hot \ | \ Large)=\frac{22}{22+5} =0.(814)=0.81.[/tex]

The probability that a customer ordered hot drink given that he or she ordered a large 29.3%.

Probability can be defined as the ratio of the number of favourable outcomes to the total number of outcomes of an event.

We know that, probability of an event = Number of favourable outcomes/Total number of outcomes.

Here,

P(Large| Hot) = n(Large and Hot)/n(Hot)

Using the data on the given table, we have:

P(Large| Hot) = 22/(5 + 48 +22)

P(Large| Hot)  = 22/75

= 0.2933

= 29.3%

Hence, the probability that a customer ordered hot drink given that he or she ordered a large 29.3%.

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Answer:

(2,6)

Step-by-step explanation:

Use the midpoint formula: (x1+x2/2, y1+y2/2)

The missing data values of the linear function are: B. missing x: 0 missing y:1

The equation, y = mx + b represents a linear function, where m is the slope and b is the y-intercept of the function.

Find the slope using two given pairs of points from the table, (-9, 3) and (-6, 2):

Slope (m) = change in y/change in x = (3 - 2)/(-9 -(-6))

Slope (m) = 1/-3 = -1/3.

Find b by substituting (x, y) = (-9, 3) and m = -1/3 into y = mx + b:

3 = -1/3(-9) + b

3 = 3 + b

3 - 3 = b

0 = b

b = 0

Plug in m = -1/3 and b = 0 into y = mx + b

y = -1/3x

Use the equation to find the missing data values:

When y = 0, x would be:

0 = -1/3x

x = 0

When x = -3, y would be:

y = -1/3(-3)

y = 1

The missing data values are: B. missing x: 0 missing y:1

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Answer:

40%

Step-by-step explanation:

Percent markup = new price - original price/original price

Do the subtraction first.

58.80 - 42.00 = 16.80

Now do the division

16.8/42 = 0.40

Change the decimal to a percent by moving the decimal two place to the right.

0.40 = 40%

The total number of ships on both days 2x + 5

The total in all the 5 days is 7x +2

From the given table;

The total number of ships on both days = x - 4 + x + 9

The total number of ships on both days 2x + 5

b) To get the total for all the days;

Total for all days = 2x + 5 + 2x + 3x - 7 + 4

Total for all days = 7x + 2

Hence the total in all the 5 days is 7x +2

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