JUST HELP ME PLS THANKS

Answer:

2)

Step-by-step explanation:

plug in a random number for x i used 2. So y=2^x+14x-3 which equals 29 and 1)=253 2)=29 3)=207 4)=35

Tim received 8 SMS on Monday, 4 emails on Thursday, and 0.52 of the communications were emails, which is the solution to (a), (b), and (c).

When two sets of data are joined and their frequencies are combined, a composite bar chart is utilized. Two pieces of data—emails and texts—are included in this inquiry, but they both fall under the same heading, "messages." With regard to question (a), it is clear from the diagram that Tim got 8 texts on Monday. In order to answer question (b), we must determine how many emails Tim received on Thursday. To do this, we must look at the bar for Thursday and divide the total number of texts by the total number of messages to determine the number of emails received. 15-11=4, indicating that Tim received 4 emails on Thursday.

given

Tim for five days, total the emails received, and then determine the percentage of emails relative to messages.

Total messages: 14+16+14+15+14=73.

Emails totaled: 6 + 10 + 10 + 4 + 8 = 38

Email to message ratio is equal to 0.52.

Emails made up 0.52 of the messages, therefore.

Tim got 8 texts on Monday, 4 emails on Thursday, and 0.52 of the messages were emails, according to an analysis of the composite bar chart we used to determine the answers to the three questions.

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The complete question is :- The composite bar chart Messages received shows the number of messages Tim received each day for five days.

a) How many texts did Tim receive on Monday?

b) How many emails did Tim receive on Thursday?

c) In total, what fraction of the messages were emails?

Give your answer in its simplest form.

Where a and b are determined by the value of D.

A parabola is a type of graph, or curve, that is represented by an equation of the form y = ax² + bx + c. The vertex of a parabola is the point where the curve reaches its maximum or minimum point, depending on the direction of the opening of the parabola. In this case, the vertex of the parabola is at (-4,-1).
To find the equation of the parabola, we need to know two more points on the graph. We are given that when the y-value is 0, the x-value is 10-D. We can use this information to find another point on the graph.
When the y-value is 0, we have:
0 = a(10-D)² + b(10-D) + c
Simplifying this equation gives:
0 = 100a - 20aD + aD² + 10b - bD + c
Since the vertex is at (-4,-1), we know that:
-1 = a(-4)² + b(-4) + c
Simplifying this equation gives:
-1 = 16a - 4b + c
We now have two equations with three unknowns (a,b,c). To solve for these variables, we need one more point on the graph. Let's use the point (0,-5) as our third point.
When x = 0, y = -5:
-5 = a(0)² + b(0) + c
Simplifying this equation gives:
-5 = c
We can now substitute this value for c into the other two equations to get:
0 = 100a - 20aD + aD² + 10b - bD - 5
-1 = 16a - 4b - 5
Simplifying these equations gives:
100a - 20aD + aD² + 10b - bD = 5
16a - 4b = 4
We now have two equations with two unknowns (a,b). We can solve for these variables by using substitution or elimination. For example, we can solve for b in the second equation and substitute it into the first equation:
16a - 4b = 4
b = 4a - 1
100a - 20aD + aD² + 10(4a-1) - D(4a-1) = 5
Simplifying this equation gives:
aD² - 20aD - 391a + 391 = 0
We can now use the quadratic formula to solve for D:

D = [20 ± sqrt(20² - 4(a)(391a-391))]/2a
D = [20 ± sqrt(400 - 1564a² + 1564a)]/2a
D = 10 ± sqrt(100 - 391a² + 391a)/a
There are two possible values for D, depending on the value of a. However, since we don't have any information about the sign of a, we cannot determine which value of D is correct. Therefore, the final equation of the parabola is:
y = ax² + bx - 5

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Answer:

Explanation:

Given the expression;

simplifying;

we have;

Therefore;

Answer:48

Step-by-step explanation:

Considering the definition of an inequality, the correct answer is option C. the inequiality $0.70x + $10.00 < $34.50 symbolize this situation

An inequality is the existing inequality between two algebraic expressions, connected through the signs:

The solution of an inequality is the set of numbers that make the inequality true.

In this case, you know that:

Being "x" the number of cookies Britany can buy, the inequality that expresses the previous relationship is

10 + 0.70x <34.50

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Answer: 7.35pi meters

Step-by-step explanation:

Formula to find the volume of a cone is V = (1/3) x (pi) x (r^2) x (h)

diameter = 2r

4.2 = 2r -> r = 2.1 meters

plug in the height and radius in the formula

V = (1/3) x pi x (2.1)^2 x (5)

V = 7.35pi meters

Answer:

7.35 pi meters cubed

Step-by-step explanation:

The formula for the volume of a cone is V=πr^2*h/3. You substitute the values you know and then solve as normal, but don't get rid of the pi. You are left with 7.35 pi meters cubed.

The area of the rectangle is 3/4 square meters

From the question, we have the following parameters that can be used in our computation:

Width = 1/2 meters

Length = three times longer

This means that

Length = 3 * 1/2

The area of the rectangle is then calculated as

Area = Length * Width

Substitute the known values in the above equation, so, we have the following representation

Area = 1/2 * 3 * 1/2

Evaluate

Area = 3/4

Hence, the area is 3/4 square meters

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Answer: hola

Step-by-step explanation:

Answer:

Step-by-step explanation:

Answer

r=3

Step-by-step explanation:

Use the slope formula

m=y2-y1/x2-x1

r-(-2)/6-1

r+2/5

r+2=5

r=5-2

r=3

Answer: 83r^2 - 59 + 60

Step-by-step explanation:

R^2 - 59R - 82r^2 + 60

= 83r^2 - 59 + 60

Answer:

b,d

Step-by-step explanation:

Answer:

Solve for x:

\(x = \frac{9(y - 1)}{4} \)

Solve for y:

\(y = \frac{4x}{9} + 1\)

False. Solving a system of linear equations requires solving for multiple variables.

To solve for a single variable, you would only need to solve one equation.

To solve a system of linear equations, you need to use methods such as elimination, substitution, or graphing. For example, consider the system of equations:

3x + y = 7

2x - y = 4

To solve this system, you could use elimination by adding the equations together. This would give you the equation 5x = 11. To solve for x, you would then divide both sides by 5, giving you x = 11/5.

Once you have solved for x, you can substitute this value into either of the original equations to solve for y. In this example, substituting 11/5 for x into the first equation would give you 3(11/5) + y = 7. Simplifying this equation gives you y = -2/5.

Therefore, the solution to this system of linear equations is x = 11/5 and y = -2/5.

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Answer:

D- Would you like to waste taxpayersy money to build a new skate park

The solution to the system of equations is (8, -4)

The system of equations is given as;

y = -1/4x - 2

y = 3/8x - 7

See attachment for the graph of the equations

From the attached graph, we have the point of intersection to be

(x, y) = (8, -4)

Hence, the solution to the system of equations is (8, -4)

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Hope you could get an idea from here.

Doubt clarification - use comment section

Answer:

Step-by-step explanation:

slope=(0-7)/(6-2)=-7/4

Answer:

slope =-7/4

Step-by-step explanation:

Use the slope formula and the slope-intercept form to find the slope

m and y-intercept b.

Answer:

Gesell drank 4 ounces.

Step-by-step explanation:

20 divided by 5 is 4. 1/5 = 4/20.

Answer:

MISTA GESELL

Step-by-step explanation:

The amount of money Company A charge more for x miles,  35 - 0.05x dollars

In mathematics, subtraction is an operation which means taking away a few portions of the group or few things from a whole part.

For example, if we take 4 pencils out of 10 then remaining pencils are 6

so this process is called subtraction.

Let's call the number of miles the family wants to travel "x".

The cost for Company A is $30.50 plus 8 cents per mile, so the total cost for Company A is,

30.50 + 0.08x.

The cost for Company B is $65.50 plus 13 cents per mile, so the total cost for Company B is,

65.50 + 0.13x.

To find out how much more Company A charges, we can subtract the cost for Company B from the cost for Company A:

= (30.50 + 0.08x) - (65.50 + 0.13x)

= 35 - 0.05x

So, Company A charges 35 - 0.05x dollars more than Company B for x miles.

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Given:

The polynomial expression \(-7x^2+32x+240\).

To find:

The constant term in the polynomial expression and factored form.

Solution:

We have

\(-7x^2+32x+240\)

Here, 240 is free from variable x. So, it is the constant term.

It represents the initial value of the expression, where x=0.

Using splitting the middle term, we get

\(-7x^2-28x+60x+240\)

\(\Rightarrow -7x(x+4)+60(x+4)\)

\(\Rightarrow  (x+4)(-7x+60)\)

Therefore, the factored form is \((x+4)(-7x+60)\).

It represents the two expressions, whose product is the given expression.

Answer:

a is the right answer you got this

Step-by-step explanation:

Answer:

the answer is B

x = 1

Step-by-step explanation:

the symmetry is in the middle of the curve like a mirror and the equation of the mirror or symmetry line is x=1

Answer:

Step-by-step explanation:

Puan Rohana's income = Active income + passive income

                                     = 2000 + 450

                                     = RM 2450

Expenses = 1680 + 400

                 = RM 2080

Total expenses increased by 40%

New expenses after 40% increase = 2080 + 40% of 2080

                                                         = 2080 + (0.4 * 2080)

                                                          = 2080 + 832

                                                          = RM 2912

Puan Rohana's expenses is more than there income

Answer:

Step-by-step explanation:Puan Rohana's income = Active income + passive income

                                    = 2000 + 450

                                    = RM 2450

Expenses = 1680 + 400

                = RM 2080

Total expenses increased by 40%

New expenses after 40% increase = 2080 + 40% of 2080

                                                        = 2080 + (0.4 * 2080)

                                                         = 2080 + 832

                                                         = RM 2912

Puan Rohana's expenses is more than there income

This is answer good bye guys <3

90% confidence interval will have the smallest margin of error.

What is global warming?

Long-term changes in temperature and weather patterns are referred to as climate change. These changes may be organic, but since the 1800s, human activity has been the primary cause of climate change. This is primarily because burning fossil fuels, such as coal, oil, and gas, releases gases that trap heat.

In March 2015, the Public Policy Institute of California (PPIC) surveyed 7,525 likely voters living in California.

In the survey, respondents were asked about global warming. PPIC results show that 47% of adults age 55 and older view global warming as a serious problem, and 65% of adults age 18 to 34 view global warming as a serious problem.

PPIC researchers are interested in the difference in proportions of adults age 55 and over and adults age 18 to 34.

The standard error for the difference in proportions is 0.011.

The correct option is (a).

As the confidence level decreases margin of error decreases.

So 90% confidence interval will have the smallest margin of error.

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The equation would be: ΔT = 2 - (-12) = 14 degrees Celsius, ΔT = T2 - T1, where ΔT is the change in temperature, T2 is the final temperature (-12 degrees Celsius)

A. d = rt, where d = 12 meters, r = 2 meters per second (rate), and t is the time it takes for the whale to get to an elevation of 12 meters. The equation would be:

12 = 2t

B. r = d/t, where r is the rate of diving, d = 12 meters (depth), and t = 2 minutes (time). The equation would be:

r = 12/(2 x 60) = 0.1 meters per second

C. ΔT = T2 - T1, where ΔT is the change in temperature, T2 is the final temperature (2 degrees Celsius), and T1 is the initial temperature (-12 degrees Celsius). The equation would be:

ΔT = 2 - (-12) = 14 degrees Celsius

D. ΔT = T2 - T1, where ΔT is the change in temperature, T2 is the final temperature (-12 degrees Celsius), and T1 is the initial temperature (2 degrees Celsius). The equation would be:

ΔT = -12 - 2 = -14 degrees Celsius

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Answer:

B. \(27.5\)%

Step-by-step explanation:

Percentage = \(\frac{Students\ who\ prefer\ hot\ dogs}{Total\ students} \times 100= \frac{55}{200} \times 100=27.5%\)%