Need help with this pls!!

Answer:

35

Step-by-step explanation:35

Answer:

r = -4

Step-by-step explanation:

-3r+9 = -4r+5

+[4r] +4r

_____________

r+9 = 5

-[9] -9

__________

r = [-4]

Answer:

The expression 5+n is already simplified to the highest it could be. You can only use the commutative property and switch them. you can only unsiplify it to this point. Unsiplifying is bad, so the only other way to write is

brainliest?

Answer:

{(7,4), (3,8), (-4,-4), (0,4)}

Step-by-step explanation:

A function does not have reoccurring x values that are identical in its points. You can have reoccurring y values in a function (ex y=sin(x)).

The optimal values of x and y that minimize the objective-function x + y, subject to the given constraints, are x = 4 and y = 0.

We can find the corner points of the feasible region and evaluate the objective function at those points to determine the optimal solution.

Graph the constraints:

Start by graphing the inequalities:

x + y ≥ 7

5x + 2y ≥ 20

x ≥ 0

y ≥ 0

Plot the lines x + y = 7 and 5x + 2y = 20. To graph x + y = 7, plot two points that satisfy the equation, such as (0, 7) and (7, 0), and draw a line through them. To graph 5x + 2y = 20, plot two points such as (0, 10) and (4, 0), and draw a line through them.

Shade the region that satisfies the inequalities x ≥ 0 and y ≥ 0.

The feasible region will be the shaded region.

Identify the feasible region:

The feasible region is the shaded region where all the constraints are satisfied. In this case, the feasible region will be a polygon bounded by the lines x + y = 7, 5x + 2y = 20, x = 0, and y = 0.

Find the corner points:

Locate the intersection points of the lines and the axes within the feasible region. These are the corner points. In this case, we have the following corner points:

Intersection of x + y = 7 and x = 0: (0, 7)

Intersection of x + y = 7 and y = 0: (7, 0)

Intersection of 5x + 2y = 20 and x = 0: (0, 10)

Intersection of 5x + 2y = 20 and y = 0: (4, 0)

Evaluate the objective function:

Evaluate the objective function, which is x + y, at each corner point:

(0, 7): x + y = 0 + 7 = 7

(7, 0): x + y = 7 + 0 = 7

(0, 10): x + y = 0 + 10 = 10

(4, 0): x + y = 4 + 0 = 4

Determine the optimal solution:

The optimal solution is the corner point that minimizes the objective function (x + y). In this case, the optimal solution is (4, 0) because it has the smallest objective function value of 4.

Therefore, the optimal values of x and y that minimize the objective function x + y, subject to the given constraints, are x = 4 and y = 0.

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Answer:

I think on this one you use: y1-y1/x2-x1 then you get your answer, and remember the number on top is your X and the number on the bottom is your Y.

Step-by-step explanation:

Answer:

Below

Step-by-step explanation:

A   Wavelength is measure from crest (top) to crest = 4 m

B   wavelength = 8 m

Amplitude = height from midline to crest   ( or total height / 2)

A   = 20 m

B   = 5 m

Frequency   how many cycles per second

A  high  

B  low

An individual's BMR decreases approximately 3 to 5 percent per decade on an average after the age of option C. 30.

Therefore, on an average individuals BMR is approximately decreases by round about 3 to 5 percent per decade after the age of option c. 30.

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Cross multiplying

20 × 5 = t × t

100 = 2t

Dividing 2 on the opposite side

100/2 = t

t = 50

This question is incomplete

Complete Question

A baker uses 5.5 Ibs of flour daily

The baker's recipe for a loaf of bread calls for 12 oz of flour. If he uses all of his flour to make loaves of bread, how many loaves can he bake in seven days?

Answer:

51.3 loaves of bread

Step-by-step explanation:

Converting 5.5 Ibs to oz (ounces)

1 Ibs =>12 oz

5.5 Ibs => x

Cross Multiply

12 × 5.5 => 88 oz

1 loaf of bread =>12 oz

Hence, in 1 day

12 oz =>1 loaf of bread

88 oz => x

x =>88 oz/ 12 oz

x => 7.3333333333 loaves of bread

Hence, he can make 7.3333333333 loaves of bread in 1 day

Hence, in 7 days

1 day => 7.3333333333 loaves

7 days => x

x => 7 × 7.3333333333 loaves

x => 51.333333333 loaves of bread

Approximately => 51.3 loaves of bread

Answer:

Step-by-step explanation:

We know that a triangle equals to 180 degrees.

(2x+24)+(4x+43)+(x^2+1)=180

the awnser to this is x=8.

You plug in 8 into x

Angle 1: 2(8+24) --> 40

Angle 2: 4(8+43) -->75

Angle 3: (8^2+1)  -->65

Check your work: add values together 40+75+65=180

Answer:

$21.75

Step-by-step explanation:

15 * 0.45 = 6.75

15 + 6.75 = $21.75

the total distance traveled by the particle over the time period is 14/3 meters.

To find the displacement of the particle over the time period, we need to integrate the velocity function v(t) over the given interval.

A) Displacement:

The displacement is given by the definite integral of the velocity function v(t) over the interval [1, 6]:

Displacement = ∫[1, 6] (t^2 - 2t - 8) dt

To evaluate this integral, we can use the power rule of integration:

Displacement = [(1/3) * t^3 - t^2 - 8t] evaluated from 1 to 6

= [(1/3) * (6^3) - 6^2 - 8 * 6] - [(1/3) * (1^3) - 1^2 - 8 * 1]

= [72 - 36 - 48] - [1/3 - 1 - 8]

= -12 - (-22/3)

= -12 + 22/3

= (-36 + 22)/3

= -14/3

Therefore, the displacement of the particle over the time period is -14/3 meters.

B) Total Distance:

To find the total distance traveled by the particle over the time period, we need to consider the absolute value of the velocity function and integrate it over the interval [1, 6]:

Total Distance = ∫[1, 6] |t^2 - 2t - 8| dt

Since the velocity function is already non-negative for the given interval, we can calculate the total distance by evaluating the integral of v(t) directly:

Total Distance = ∫[1, 6] (t^2 - 2t - 8) dt

Using the same integral from part A, we can evaluate it as:

Total Distance = (-14/3) meters

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Answer:

\(\boxed {z = 6}\)

Step-by-step explanation:

Solve for the value of \(z\):

\(\frac{1}{4} = \frac{1}{12} + \frac{1}{z}\)

-The variable \(z\) cannot equal to \(0\) since division by zero is undefined. SO, you multiply both sides by \(12z\), which is the least common multiple of \(4\), \(12\), and \(z\):

\(3z = 12z \times (\frac{1}{12}) + 12\)

\(3z = z + 12\)

-Take \(-z\) and subtract it from \(3z\):

\(3z - z = z - z + 12\)

\(2z = 12\)

-Divide both sides by \(2\):

\(\frac{2z}{2} = \frac{12}{2}\)

\(\boxed {z = 6}\)

So, the value of \(z\) of \(6\).

Answer:

The semi-circles form an entire circle with a diameter of 74.

The radius is 37

The area of the rectangle is 95 x 74 = 7030

The area of the circle is 3.142 x 37*37 = 4298.66

The total area is 11328.66

Answer:

https://www.townandcountrymag.com/style/beauty-products/g32747256/most-expensive-perfumes/

$12,721.8900000 is 7 decimal places value and  $12,721.89 is 7 significant figures,

A number system is defined as a system of writing to express numbers.

$12,721.8900000 is given to 7 decimal places, meaning there are 7 digits to the right of the decimal point.

This level of precision is useful in some scientific calculations where very small differences can be significant.

$12,721.89 is 7 significant figures, meaning there are 7 digits that are meaningful and the rest are placeholders.

This level of precision is often used in financial calculations where a high level of accuracy is important but excessive precision is not necessary.

Hence, $12,721.8900000 is 7 decimal places value and  $12,721.89 is 7 significant figures,

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When a coin is weighted, there is a two-thirds chance that it will land on its head. suppose you toss this coin 15 times. let x represent the number of heads. Mean = 10 and Standard deviation = 2.88

The mean of x, which represents the number of heads when the coin is tossed 15 times, is 10. This is because the probability of getting heads is two-thirds, meaning that two out of every three tosses will result in heads.We apply the following formula to determine the standard deviation:

Standard Deviation = √(p*q*n), where p is the probability of getting heads, q is the probability of getting tails, and n is the number of tosses. In this case, p = 2/3, q = 1/3, and n = 15, so the standard deviation of x is 2.88.

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The correct order of steps is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.

To find the inverse of 55 modulo 89 using the Euclidean algorithm, the steps are:
1. 89 = 1.55 +34
2. 55 = 1.34 +21
3. 34 = 1.21 + 13
4. 21 = 1.13 + 8
5. 13 = 1.8 +5
6. 8 = 1.5 +3
7. 5 = 1.3 +2
8. 3 = 1.2 +1
9. 2 = 1.2
10. The Bézout coefficient of 55 is 34, and it is an inverse of 55 modulo 89.
11. The Bézout coefficients of 55 and 89 are 34 and -21, respectively.
12. The gcd in terms of 55 and 89 is written as 1 = 34-21.89 = 34-21. (55-1.34) = 13.34-21.55 = 13. (21-1.13) - 3.13 = 5.21-8. 13 = 5. (8-1.5) - 1.5 = 2.8-3.5 = 2. (3-1.2) = 2.3-1.5 = 2. (2-1) = 3-1.2 = 3-1. (1-0) = 34-21.89
The correct order of steps is 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12.

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Solution

First we will label the triangle

In triangle ACD , we will use pythagoras theorem

In triangle ACB, Using pythagoras theorem

In triangle ABD , we will also use pythagoras theorem

Now we have three equations

Let us find a replacement for y^2 in the first equation

From equ(3),

Now we will find a replacement for z^2 in the new equation

We will recall that

We will substitute for z^2 in x^2=z^2 - 65

Two values have frequency 2, so both are modes. They are 5 and 6. Therefore, the mode is 5 and 6.

Given measure: 3, 5, 4, 6, 10, 5, 6, 9, 2, 13.(D) To calculate \(x_2\), first we need to sort the data in ascending order: 2, 3, 4, 5, 5, 6, 6, 9, 10, 13

Now, we need to find the median, which is the middle value of the data. Since the data has even number of values, we will calculate the mean of middle two values, that is:(5+6)/2 = 5.5 Therefore, \(x_2 = 5.5\).\( \frac{2}{x}= \) To find the value of x, we will first cross-multiply and then take the reciprocal of both sides:\[\frac{2}{x} = y \Rightarrow 2 = xy \Rightarrow x = \frac{2}{y}\] Therefore, \( \frac{2}{x}= \frac{2}{y}\).

(b) To calculate Fried m, we will use the formula: \[f_m = L + \frac{(n/2 - F)}{f} \times c\]where L is the lower limit of the modal class, F is the cumulative frequency of the class preceding the modal class, f is the frequency of the modal class, c is the class interval, and n is the total number of values.

First, we will calculate the class interval:c = (upper limit of class - lower limit of class) = (7-6) = 1 Next, we will construct a frequency table to find the modal class:| Class Interval | Frequency ||-------------------|------------|| 2-3 | 1 || 3-4 | 1 || 4-5 | 1 || 5-6 | 2 || 6-7 | 2 || 7-8 | 1 || 9-10 | 1 || 10-11 | 1 || 13-14 | 1 |The modal class is the class with highest frequency.

Here, two classes have frequency 2, so both are modes. They are 5-6 and 6-7.

Therefore, L = 5, F = 2, f = 2, n = 10, and c = 1. Substituting the values, we get:\[f_m = L + \frac{(n/2 - F)}{f} \times c = 5 + \frac{(10/2 - 2)}{2} \times 1 = 7\] Therefore, Fried m = 7.

(c) To find the mode, we look for the value(s) with highest frequency. Here, two values have frequency 2, so both are modes. They are 5 and 6. Therefore, the mode is 5 and 6.

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If you are considering speed regardless of direction, the average speed is:

(24 + 16) / 2 = 40 / 2 = 20mph

Although if direction matters, then one number has to be negative since the directions are opposite:

(24 - 16) / 2 = 8 / 2 = 4mph (in the positive direction)

Answer:

\(10^7\)

Step-by-step explanation:

There are \(7\) zeroes in the number \(10,000,000\). Therefore, \(10,000,000\) can be written as \(\fbox{$10^7$}\).

*Any number written as \(10^n\) will be equal to \(1\) followed by \(n\) zeroes.

Answer:10^7

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Supplementary means 180 degree. Thus, you have to find the two angle that equals 180.

Answer:

I think it is 1 only [B.]

Step-by-step explanation:

I'm not sure, but I hope this helps!

In order to determine the side length y and the angles and for the following right angle triangle, it is necessary to use the trigonometric functions.

The given right triangle has one angle of 70 degrees and one angle of 42.13 degrees.

Therefore, the remaining angle, which is opposite the unknown side y, is equal to: 90° - 70° - 42.13°= 77.87°

We can use the sine ratio to find y.

The sine ratio is given as:

Sin (angle) = Opposite / Hypotenuse

The hypotenuse is always opposite the right angle,

so we have:

sin 42.13 = y / 6y = 6 sin 42.13y = 4.19 cm

Next, we can use the sine ratio again to find the third angle. The sine ratio is given as:

Sin (angle) = Opposite / Hypotenuse

sin 70 = y / h

sin 70 = 4.19 / h

Therefore,

h = 4.19 / sin 70 h = 4.64 cm

Finally, we can use the angle sum property of a triangle to find the third angle. The sum of the three angles in a triangle is always 180 degrees.

Therefore, we have:

180 = 70 + 42.13 + A

where A is the third angle

A = 67.87 degrees

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Answer:

473 or 472, depends on how you round

Step-by-step explanation:

378/4 = 94.5

94.5 x 5 = 472.5

The number of votes she gets will be 473.

It is also known as the product. If the object n is given to m times then we just simply multiply them.

2. After election results of 378 votes were tallied, the new student-body president won by a margin of 5 to 4.

Then the number of votes she gets that will be

→ 378 x 5 / 4

→ 378 x 1.25

→ 472.5 ≅ 473

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Answer:

9 grams

Step-by-step explanation:

93-21/8

Answer:

256, 254

Step-by-step explanation:

ans.(a) is correct

only in option (a) numbers are arranged from least to greatest.