4x² - 3y, when x= 1/2 and y= -5

1x= y

Step-by-step explanation:

x being the weight and y being the cost

Answer:

Step-by-step explanation:

Look at the picture.

Only from point A do the lines pass through the corresponding vertices of both triangles.

Answer:

Jennifer feeds total fishes is 280

Step-by-step explanation:

Tony feeds total fishes is 56

Jennifer feeds 5 times as many fish as Tony feeds

Jennifer [tex]=[/tex] 5 × Tony

              [tex]=[/tex]   5 × 56

              [tex]=[/tex]   280

Jennifer feeds total fishes is 280

Final answer:

Jennifer feeds 280 fish.

Explanation:

To find out how many fish Jennifer feeds, we need to perform a simple multiplication. Since Jennifer feeds 5 times as many fish as Tony, and Tony feeds 56 fish, we can write the following equation to represent the situation:

f = 5 × 56

We then multiply 56 by 5:

f = 280

So, Jennifer feeds 280 fish.

HOPE IT HELPS YOU......

The value of function on x=1 is 0.5

Step-by-step explanation:

In order to find the value of a function on given input, the input is put at the place of variable in the function.

Given function is:

[tex]f(x) = (\frac{1}{2})^x[/tex]

We have to find the value of function on x = 1

Putting x = 1 in function

[tex]f(1) = (\frac{1}{2})^1\\= \frac{1}{2}\\= 0.5[/tex]

Hence,

The value of function on x=1 is 0.5

Keywords: Functions variables

Learn more about functions at:

LearnwithBrainly

Answer:

The equation of M is [tex]y=-(x+3)^2+6[/tex]

Step-by-step explanation:

we have that

The translation of M to N is

(-1,2) ----> (4,2)

The rule of the translation M to N is

(-1,2) ----> (x+a,y+b)

(-1,2) ----> (-1+a,2+b)

so

[tex]-1+a=4[/tex] ----> [tex]a=4+1=5[/tex]

[tex]2+b=2[/tex] ----> [tex]b=0[/tex]

The rule of the translation M to N is

(x,y) ----> (x+5,y)

The translation is 5 units right

I can say that the rule of the translation  N to M is

(x,y) ----> (x-5,y)

we have the equation of N

[tex]y=-(x-2)^2+6[/tex]

Is a quadratic equation open downward

The vertex is (2,6)

Find the vertex of M

Applying the rule of the translation N to M to the vertex

(2,6) ----> (2-5,6)

(2,6) ----> (-3,6)

therefore

The equation of M is

[tex]y=-(x+3)^2+6[/tex]

Answer:

[tex](8^{\frac{2}{3} } )^{4} = 256[/tex]

Step-by-step explanation:

Given

[tex](8^{\frac{2}{3} } )^{4}[/tex]

Required

Simplify

To simplify this, we apply law of indices but first we start by solving the expression in bracket.

8 =2 * 2 * 2

8 = 2³

So, we substitute 2³ for 8

[tex](8^{\frac{2}{3} } )^{4}[/tex] becomes

[tex]((2^{3})^{\frac{2}{3} } )^{4}[/tex]

From law of indices

[tex]a^{n} = (a^{m})^{\frac{n}{m} }[/tex] ==> [tex](a^{m})^{\frac{n}{m} } = a^{n}[/tex]

So, [tex](2^{3})^{\frac{2}{3} } = 2^{2}[/tex]

At this point we have

[tex]((2^{3})^{\frac{2}{3} } )^{4}[/tex] = [tex](2^{2})^{4}[/tex]

Also, from law of indices

[tex](a^{m})^{n} = a^{m.n}[/tex]

So,

[tex]((2^{3})^{\frac{2}{3} } )^{4}[/tex] = [tex](2^{2})^{4}[/tex]

[tex](2^{2})^{4} = 2^{2*4}[/tex]

[tex](2^{2})^{4} = 2^{8}[/tex]

[tex](2^{2})^{4} = 256[/tex]

Hence,

[tex](8^{\frac{2}{3} } )^{4} = 256[/tex]

Answer:  $100.70

Step-by-step explanation:

Answer:

100.70

Step-by-step explanation:

Answer:

Probability that a student chosen randomly from the class plays basketball or baseball is  [tex]\frac{23}{30}[/tex] or 0.76

Step-by-step explanation:

Given:

Total number of students in the class = 30

Number of students who plays basket ball = 19

Number of students who plays base ball = 12

Number of students who plays base both the games = 8

To find:

Probability that a student chosen randomly from the class plays basketball or baseball=?

Solution:

[tex]P(A \cup B)=P(A)+P(B)-P(A \cap B)[/tex]---------------(1)

where

P(A) = Probability of choosing  a student playing basket ball

P(B) =  Probability of choosing  a student playing base ball

P(A \cap B) =  Probability of choosing  a student playing both the games

Finding  P(A)

P(A) = [tex]\frac{\text { Number of students playing basket ball }}{\text{Total number of students}}[/tex]

P(A) = [tex]\frac{19}{30}[/tex]--------------------------(2)

Finding  P(B)

P(B) = [tex]\frac{\text { Number of students playing baseball }}{\text{Total number of students}}[/tex]

P(B) = [tex]\frac{12}{30}[/tex]---------------------------(3)

Finding [tex]P(A \cap B)[/tex]

P(A) = [tex]\frac{\text { Number of students playing both games }}{\text{Total number of students}}[/tex]

P(A) = [tex]\frac{8}{30}[/tex]-----------------------------(4)

Now substituting (2), (3) , (4) in (1), we get

[tex]P(A \cup B)= \frac{19}{30} + \frac{12}{30} -\frac{8}{30} [/tex]

[tex]P(A \cup B)= \frac{31}{30} -\frac{8}{30} [/tex]

[tex]P(A \cup B)= \frac{23}{30}[/tex]

Answer:

4x^2+20x+24

Step-by-step explanation:

(4x+8)(x+3)=4x^2+8x+12x+24=4x^2+20x+24

The value of f(x) * g(x) = 4[tex]x^{2}[/tex] + 20[tex]x[/tex] + 3

We have two functions -

f(x) = 4x + 8

g(x) = x + 3

We have to determine f(x)*g(x).

A function in mathematics is an expression with a independent variable (x) in it. The variable is called independent because it is not dependent on any value to get its value. Function also has a dependent variable (y) whose value depend on x. Ex -

y = f(x) = ax + d

According to the question, we have -

f(x) = 4x + 8

g(x) = x + 3

Therefore -

f(x) * g(x) = (4x + 8)(x + 3) = 4x(x + 3) + 8(x + 3) = 4[tex]x^{2}[/tex] + 20[tex]x[/tex] + 3

Hence, the value of f(x) * g(x) = 4[tex]x^{2}[/tex] + 20[tex]x[/tex] + 3

To solve more questions on Operations of functions, visit the link below-

https://brainly.com/question/24114937

#SPJ2

Final answer:

The equation representing the sentence is 'R *4 = 72', where R is Rita's height. Dividing both sides by 4 yields Rita's height as R = 18 units.

Explanation:

The sentence' 72 is the product of Rita’s height and 4' can be translated into the equation R *4 = 72, where R represents Rita's height in the appropriate unit (e.g., meters or feet).

To find Rita's height, you would divide both sides of the equation by 4, simplifying to R = 72 / 4. Therefore, Rita's height would be 18 units. In the context of the given examples, the algebraic representation involves setting up equations and solving for an unknown variable through techniques like cross multiplication and proportion.

Answer:

Gianna makes $18 per hour.

Step-by-step explanation:

Given Gianna makes 90$ for 5 hours. That means she should make [tex]$ \frac{90}{5} $[/tex] $  = 18$ every hour.

Therefore we have:

a.

HOURS                    DOLLARS

  1                                   18

  2                                  36

  3                                  54

  4                                   72

  5                                   90

  6                                   108

  7                                   126

b.

For the tabular column mark Hours on the x - axis and Dollars on the Y - axis. It can be plotted from the above table easily.

c.

If Gianna works for 8 hours she would have made 8 X 18 = 144$.

So, she will earn 144$ in 8 hours.

d.

To make 60$ she would have to work [tex]$ \frac{60}{18} $[/tex] hours = 3.33 hours.

[tex]\bf (\stackrel{x_1}{0}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{-3}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-3}-\stackrel{y1}{(-1)}}}{\underset{run} {\underset{x_2}{3}-\underset{x_1}{0}}}\implies \cfrac{-3+1}{3}\implies -\cfrac{2}{3}[/tex]

[tex]\bf \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-1)}=\stackrel{m}{-\cfrac{2}{3}}(x-\stackrel{x_1}{0}) \\\\\\ y+1=-\cfrac{2}{3}x\implies y=-\cfrac{2}{3}x-1[/tex]

Answer:

7/3

Step-by-step explanation:

7 1/3=22/3

22/3-5=22/3-15/3=7/3

Answer: 2 and 1/3

Step-by-step explanation: In this problem, we begin by subtracting the fractions. Since 5 has no fraction, imagine the fraction 0/3 so 1/3 - 0/3 is 1/3.

Next, subtract the whole numbers. 7 - 5 is 2 so 7 and 1/3 - 5 = 2 and 1/3.

Answer:

Step-by-step explanation:

Sec B

1) 5p⁻³ = 8*5⁻²      

p⁻³  = 2³*5⁻²/5            

p⁻³ =2³*5⁻³             { 1/a^m = a^-m}

p⁻³ = 5⁻³ /2⁻³            {a^m = 1/a^-m}

p⁻³ = (5/2)⁻³

p= 5/2

2) 4x²  = 81

x²  = 81/4

x²  = 9² /2²

x²  =(9/2)²

x = 9/2

3) 9^x/3 =81

9^x/3 = 9^2

Comparing the powers, x/3 = 2

                                         x = 2*3 =6

  x = 6

Answer:

The answers are 10/24 and 9/24.

Step-by-step explanation:

Given:

Tim has 5/12 of a jar of blackberry jam and 3/8  of a jar of strawberry jam.

Now, to write using a common denominator.​

So, we get the multiples of denominator of the fractions to get common denominator:

12 - 12, 24, 36.

8  -  8, 16, 24.

Here we see that 24 is the common denominator.

Now, we multiply the numerator and denominator with the same number to get the common denominator of the fractions:

⇒  [tex]\frac{5}{12}=\frac{5\times 2}{12\times 2} =\frac{10}{24}[/tex]

⇒  [tex]\frac{3}{8}=\frac{3\times 3}{8\times 3} =\frac{9}{24}[/tex]

Therefore, the answers are 10/24 and 9/24.

Answer:

D

Step-by-step explanation:

In probability,

a probability of 0 means that it is IMPOSSIBLE, sure that this event WILL NOT occur, ever. So, probability of anything less than 0 is not possible.

On the other hand, probability of 1 means that it is CERTAIN to happen. So, probabilty of anything greater than 1 can't happen.

So we can say:

0 <= Probability of an Event happening <= 1

Option A is 1/2, which is in the middle, so this is OKAY.

Option B is 10%, which is certainly close to 0 and between 0 and 1, so this is OKAY.

Option C is 0.7, which is close to 1 and greater than 0, so in between 0 and 1, certainly. So this is OKAY.

Option D is 3/2 which is 1.5, so this is GREATER THAN 1, so it can't ever be possible.

Option D is the correct choice.

They are left with 0.51 pounds of clay.

Step-by-step explanation:

Given,

Amount of clay bought = 3.8 pounds

Amount used by Martha = [tex]\frac{1}{4}\ of\ clay[/tex]

Amount used by Martha = [tex]\frac{1}{4}*3.8=0.95\ pounds[/tex]

Amount left after Martha's use= Total amount - amount used by Martha

Amount left = 3.8 - 0.95 = 2.85 pounds

Amount used by Scott = [tex]\frac{2}{5}\ of\ amount\ left[/tex]

Amount used by Scott = [tex]\frac{2}{5}*2.85=\frac{5.70}{5}[/tex]

Amount used by Scott = 1.14 pounds

Amount left after Scott's use = Amount left after Martha's - Amount used by Scott

Amount left after Scott's use = 2.85 - 1.14 = 1.71 pounds

Amount used by Alison = 1.2 pounds

Amount left = Amount left after Scott's use - Amount used by Alison

Amount left = 1.71 - 1.2 = 0.51 pounds

They are left with 0.51 pounds of clay.

Keywords: subtraction, fraction

Learn more about subtraction at:

#LearnwithBrainly

Answer:

No.

Step-by-step explanation:

Answer:

i think its km.

Step-by-step explanation:

(please correct me if im wrong)

Answer:

(-2 i) * (-3 i) = -6

Step-by-step explanation:

This is a product between imaginary numbers, so have in mind how the imaginary unit multiplies by itself: [tex]i\,*\,i = i^2=-1[/tex]

So let's work on the product:

[tex]-2\,i\,*\,(-3\,i)= (-2)\,*\,(-3)\,*\,i\,*\,i =(6)\,* i^2\,=(6)\,*\,(-1)= -6[/tex]

Answer:

X=15 divided by 2

Step-by-step explanation:

Where X equals 5.

Answer:

[tex]5x + 2\frac{1}{2} = 15[/tex]  and [tex]\frac{15 - 2\frac{1}{2} }{5}[/tex]

Step-by-step explanation:

Assume the length of each piece of wood is x feet.

We can say that the length of uncut board = (number of pieces × length of each piece) + length of leftover board, or [tex]15 = 5x + 2\frac{1}{2}[/tex].

Apply the Symmetric Property of Equality:

[tex]5x + 2\frac{1}{2} = 15[/tex]

Subtract [tex]2\frac{1}{2}[/tex] from both sides of the equation:

[tex]5x = 15 - 2\frac{1}{2}[/tex]

Divide both sides by 5: (See image)

Cancel out the common terms from the numerator and denominator:

[tex]x = \frac{5}{2}[/tex]

[tex]= 2\frac{1}{2}[/tex]

Answer:

[tex]10.50p+15\leq 65[/tex]

[tex]p\leq \frac{100}{21}[/tex]

Step-by-step explanation:

Let p represent pounds of Pumpkin Spice coffee.

We have been given that Lydia is at a coffee shop and knows  she can spend no more than $65  before tax. She sees this price list in  the coffee shop.

Item                                               Price per pound

Dark Roast Coffee                                 $7.50

Pumpkin Spice Coffee                         $10.50

Breakfast Tea                                       $23.50

Lydia wants to buy  2 pounds of  Dark Roast coffee, so the cost of 2 pounds of Dark Roast coffee would be [tex]\$7.50\times 2=\$15[/tex].

We are told that cost of each pound of Pumpkin Spice coffee is $10.50, so cost of 'p' pounds of Pumpkin Spice coffee would be [tex]10.50p[/tex].

Since Lydia can spend no more than $65  before tax, so the cost of 2 pounds of  Dark Roast coffee and 'p' pounds of Pumpkin Spice coffee must be less than or equal to 65.

We can represent this information in an inequality as:

[tex]10.50p+15\leq 65[/tex]

Therefore, our required inequality would be [tex]10.50p+15\leq 65[/tex].

[tex]10.50p+15-15\leq 65-15[/tex]

[tex]10.50p\leq 50[/tex]

Divide both sides by 10.50:

[tex]\frac{10.50p}{10.50}\leq \frac{50}{10.50}[/tex]

[tex]p\leq \frac{50*2}{10.50*2}[/tex]

[tex]p\leq \frac{100}{21}[/tex]

[tex]p\leq 4.76190[/tex]

Therefore, Lydia can buy less than or equal to [tex]\frac{100}{21}[/tex] pounds of Pumpkin Spice coffee.

Answer:

4 pounds of pumpkin spice coffee

Answer:

x=4

Step-by-step explanation:

Missing picture is attached.

As we can see in the picture drawn, there are two cord insecting outside the circle.

∴ we will use Intersecting secant theorem.

When two secant lines intersect each other outside a circle then the product of the length of the chord and the length of the part outside the circle are equal.  

Now, using the value in theoram as given in the picture.

⇒[tex]x\times 6= 3\times 8[/tex]

Dividing both side by 6

⇒ [tex]x= \frac{3\times 8}{6}[/tex]

∴x= 4

Answer:

Its 7 1/9! I hope this helped! Also what I used was mixed numbers calculator by calculator soup!  

Step-by-step explanation:

Answer:

see explanation

Step-by-step explanation:

(A) Given

4(2x - 3) = 4 ( divide both sides by 4 )

2x - 3 = 1 ( add 3 to both sides )

2x = 4 ( divide both sides by 2 )

x = 2

(B)

As a check substitute x = 2 into the left side of the equation and if equal to the right side then it is the solution.

4(2(2) - 3) = 4(4 - 3) = 4(1) = 4 = right side

Hence x = 2 is the solution

Answer:

The solution of the given equation is x = 2.

Step-by-step explanation:

The given linear equation is,

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

At first, we will eliminate '4' from the LHS by dividing both sides i.e., LHS and RHS by 4 because '4' is present in multiplication with the term containing unknown in LHS.

So, dividing both sides by '4', we get

[tex]\frac{4(2x-3)}{4} = \frac{4}{4}[/tex]

[tex]\implies 2x - 3 = 1[/tex]

Our next step will be to eliminate '3' from the LHS that is being subtracted from the term containg unknown variable. For this, we will add '3' on both sides of the above obtained equation.

So, adding '3' on both sides, we get

[tex]2x - 3 + 3 = 1 + 3[/tex]

[tex]\implies 2x = 4[/tex]

Now, we will eliminate '2' from the LHS that is in multiplication with the unknown variable 'x'.

For this, we will divide both sides of the above obtained equation by '2'.

So, dividing both sides by '2', we get

[tex]\frac{2x}{2}=\frac{4}{2}[/tex]

[tex]\implies x = 2[/tex]

CHECKING :

For this, we will substitute x = 2 in the LHS of the given equation and then check whether it is equal to RHS or not.

LHS = 4(2x - 3)

= 4(2 × 2 - 3)

= 4(4 - 3)

= 4 × 1

= 4

= RHS

So, the solution of the given equation is x = 2.

Answer:

It's <2 and <5.