Solve for x
:
Sophie recently ran a marathon. It took her 5.2 hours to run the 26.2 miles required to complete a marathon.

Find her average speed in miles per hour. Then convert her speed to feet per second. (Hint: 1 mile = 5,280 feet).

(Round your answers to two decimal places)
4x+c=7d

Answer:

4.8

Step-by-step explanation:

When you multiply two negative number you get a positive number.

Answer:

Step-by-step explanation:

ı do not know

Answer:

x = 30 degrees

Step-by-step explanation:

angles MNO, LNM, and KNL make a straight line: 105+45+y = 180 --> y = 30 degrees

KNL = 30 degrees

angle KLN is 90 degrees, a triangle is equal to 180 degrees

2x+30+90 = 180

2x = 60

x = 30 degrees

Answer:

it would be C.

Step-by-step explanation:

since the -5 outside the parenthesis, it's indicating for the function to go down on the graph. If it were inside the parenthesis, it would indicate for the function to go right.

Answer: 8p=c

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

I'm really sry if it's wrong!

Answer:

1. Music note: (0,-7)

2. circle: (-1,-4)

3. lightning: (3,-7)

4.  cross : ( -5, -7)

5. moon: (-8, 10)

6.  diamond : (-5,-1)

7.  star: (7,-3)

8. heart: (6,-8)

9. square: (2,0)

10. triangle : (-3,0)

Step-by-step explanation:

11. No

12; yes, "G" is at the coordinate (2,-2)

13. Yes, "D" is at the coordinate (-3,9)

14. yes, "H" is at the point (5,4)

15. Yes, "J" is at the point (8,8)

16. yes, "A" is at the point (3,7)

17.  Yes, "C" is located at the point (4,-5)

18. yes, "B" is located at the point (10,-10)

19. Yes, "K" is located at the point (9,-6)

20. No

The measure of angle B is x, while the measure of angle A is 2·x. The 70° measure of angle C and the angle sum property of the interior angles of a triangle indicates that angle B is \(36.\overline 6^{\circ}\) and angle A is \(73.\overline 3^{\circ}\)

The interior angles of a triangle are the angles formed by the sides sides of the triangle.

The question can be solved by making use of the known properties of a triangle.

The angle sum property of the interior angles in a triangle gives;

The sum of the interior angles of a triangle is 180°

Therefore; x + 2·x + 70 = 180

3·x = 180° - 70° = 110°

\(x = \dfrac{110^{\circ}}{3} = 36\frac{2}{3} ^{\circ}\)

The measure of angle A is 2·x

Which gives;

\(A = 2 \times 36\frac{2}{3} ^{\circ} = 73\frac{1}{3} ^{\circ} = 73.\overline 3^{\circ}\)

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Answer:

\(x =-24\)

Step-by-step explanation:

Given

\((\frac{2}{3})(\frac{1}{2}x + 12) = (\frac{1}{2})(\frac{1}{3}x + 14) - 3\)

Required

Solve for x

\((\frac{2}{3})(\frac{1}{2}x + 12) = (\frac{1}{2})(\frac{1}{3}x + 14) - 3\)

Open all brackets

\(\frac{2}{3}*\frac{1}{2}x + \frac{2}{3}*12 = \frac{1}{2}*\frac{1}{3}x + \frac{1}{2}*14 - 3\)

\(\frac{2 * 1}{3 *2}x + \frac{2 * 12}{3}= \frac{1 * 1}{2 * 3}x + \frac{1 * 14}{2} - 3\)

\(\frac{1}{3}x + \frac{24}{3}= \frac{1}{6}x + \frac{14}{2} - 3\)

\(\frac{1}{3}x +8= \frac{1}{6}x + 7 - 3\)

Collect like terms

\(\frac{1}{3}x - \frac{1}{6}x =7 - 3 -8\)

\(\frac{1}{3}x - \frac{1}{6}x =-4\)

Solve fraction

\(\frac{2-1}{6}x =-4\)

\(\frac{1}{6}x =-4\)

Multiply both sides by 6

\(6 * \frac{1}{6}x =-4 * 6\)

\(x =-4 * 6\)

\(x =-24\)

Answer:

Step-by-step explanation:

Given

Required

Solve for x

Open all brackets

Collect like terms

Solve fraction

Multiply both sides by 6

a.) The value of pulses exported by US in billion would be=30 billion.

b.) The ratio of wheat export of UK to maize export of IND would be= 6:5

For question a.)

To calculate the pulses, the following steps should be taken as follows:

From the bar chart, the value of pulses in billions = 30 billions.

For question b.)

The ratio of wheat export at UK and maize export at IND would be calculated as follows:

The quantity of wheat export at UK = 24

The quantity of maize export at IND = 20

Therefore, the ratio of wheat to maize = 24:20= 6:5

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Answer:

  ∠DQE = 65°

Step-by-step explanation:

You want to know the measure of Angle DQE in the given figure.

Triangle ADE is inscribed in a semicircle, so is a right triangle. That makes acute angle AED complementary to acute angle EAD. The latter is given as 50°, so ...

  ∠AED = 90° -50° = 40°

We know that tangent line QE is perpendicular to diameter AE, so angle AEQ is a right angle. Segment ED divides that right angle into complementary angles, so ...

  ∠DEA +∠DEQ = 90°

  ∠DEQ = 90° -∠DEA = 90° -40° = 50°

A.pex angle DEQ in isosceles triangle DEQ being 50° means that the base angles QDE and DQE will have measure ...

  ∠DQE = (180° -50°)/2 = 130°/2

  ∠DQE = 65°

__

Alternate solution

Let angles DQE and QDE be represented by x. Then the sum of angles in quadrilateral ADQE is 360°:

  50° +(90+x)° +x° +90° = 360°

  230° +2x = 360° . . . . . . simplify

  x = 130°/2 = 65° . . . . . solve for x

Which ordered pairs are in the solution set of the system of linear inequalities?

y > Negative one-halfx

y < One-halfx + 1

On a coordinate plane, 2 straight lines are shown. The first solid line has a negative slope and goes through (0, 0) and (4, negative 2). Everything above the line is shaded. The second dashed line has a positive slope and goes through (negative 2, 0) and (2, 2). Everything below the line is shaded.

(5, –2), (3, 1), (–4, 2)

(5, –2), (3, –1), (4, –3)

(5, –2), (–3, 1), (4, 2)

Step-by-step explanation:

Answer:

1

Step-by-step explanation:

give me brainliest

Answer:

y = x - 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 1 , then

y = x + c ← is the partial equation

To find c substitute (- 2, - 3 ) into the partial equation

- 3 = - 2 + c ⇒ c = - 3 + 2 = - 1

y = x - 1 ← equation of line

Answer:

25-22. 3

---------- = ---

2-1. 1

slope is equal to 3

Answer:

57,600

Step-by-step explanation:

720 * 80 = 57,600

Answer:

9

Step-by-step explanation:

You divide the answer with the first number and you'll get the answer, 9.

Answer:

The 99% confidence interval for the true proportion of fish that are Black carp in Lake Ontario

(0.4828 , 0.7704)

Step-by-step explanation:

Step(i):-

Given that the fisherman responds that, of the 75 fish he has caught, 47 have been Black carp

Sample proportion = \(\frac{x}{n} = \frac{47}{75} = 0.6266\)

We have to find the 99% confidence interval for the true proportion of fish that are Black carp in Lake Ontario

Step(ii):-

solution:-

Given that the level of significance = 0.01

Z-score = 2.576

The 99% confidence interval for the true proportion of fish that are Black carp in Lake Ontario

\((p^{-} - Z_{0.01} \sqrt{\frac{p(1-p)}{n} } , p^{-} +Z_{0.01} \sqrt{\frac{p(1-p)}{n} })\)

\((0.6266 - 2.576 \sqrt{\frac{0.6266(1-0.6266)}{75} } ,0.6266 +2.576 \sqrt{\frac{0.6266(1-0.6266)}{75} })\)

After calculation, we get

(0.6266 - 0.1438 , 0.6266 +0.1438)

(0.4828 , 0.7704)

Final answer:-

The 99% confidence interval for the true proportion of fish that are Black carp in Lake Ontario

(0.4828 , 0.7704)

Using the z-distribution, it is found that the lower bound of a 99% confidence interval for the true proportion of fish that are Black Carp in Lake Ontario is 0.4829.

A confidence interval of proportions is given by:

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which:

In this problem, for the parameters, we have that:

The lower bound of the interval is:

\(\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.6267 - 2.575\sqrt{\frac{0.6267(0.3733)}{75}} = 0.4829\)

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the answer is d. my shlime

Carissa's salary when she sells $2,400 worth of merchandise is $732.

The first step is to determine the base pay and the commission rate.

In order to determine these values, form a system of equations that represent the information in the question:

a + 500b = 390 equation 1

a + 100b = 480 equation 2

Where:

a = base pay

b -= commission rate

Subtract equation 1 from equation 2:

500b = 90

Divide both sides by 500:

b = 90 / 500

b = 0.18

Substitute for b in equation 1:

a + 500(0.18) = 390

a + 90 = 390

a = 390 - 90

a = 300

Salary = 300 + (0.18 x 2400)

Salary = 300 + 432 = $732

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Therefore, the expression (7-3i) + (x - 2i)² - (4i + 2x²) in the simplest a + bi form is: -2x² - 1 - (4x + 7i)

Linear Equation                   General Form                    Example

Slope intercept form             y = mx + b                            y + 2x = 3

Point–slope form                   y – y1 = m(x – x1 )              y – 3 = 6(x – 2)

General Form                            Ax + By + C = 0               2x + 3y – 6 = 0

Intercept form                        x/a + y/b = 1                 x/2 + y/3 = 1

As a Function f(x) instead of y      f(x) = x + C                         f(x) = x + 3

The Identity Function                      f(x) = x                     f(x) = 3x

Constant Functions                      f(x) = C                       f(x) = 6

Let's start by expanding the square term (x - 2i)² using the formula for (a + b)²:

(x - 2i)² = x² - 4xi + 4i²

Note that i² = -1, so we can simplify this expression to:

(x - 2i)² = x² - 4xi - 4

Substituting this expression and the given values into the original expression, we get:

(7 - 3i) + (x² - 4xi - 4) - (4i + 2x²)

Grouping the real and imaginary terms, we get:

(7 - 4 - 2x²) + (-3i - 4i - 4x) + (x²)

Simplifying the real part, we get:

-2x² - 1

Simplifying the imaginary part, we get:

-7i - 4x

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The number of miles that Jose will have left after resting will be 1 1/8 miles.

Total distance to be covered = 2 3/4 miles

Distance traveled = 1 5/8 miles

Therefore, in order to get the distance that's left for Jose to complete his journey, we've to subtract the distance traveled from the total distance and this will be:

= 2 3/4 - 1 5/8

= 2 6/8 - 1 5/8

= 1 1/8

Therefore, he has 1 1/8 miles left to travel.

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Answer: Up to 300 ml because that is all she has in total. I think the question is missing parts.

Step-by-step explanation:

Answer: The quotient is when x+ 5x + 2 = 6

The reminder is when x+ 5x + 2 = -4  

Step-by-step explanation:

Given data,

The quotient and the remainder when x + 5x + 2 is divided by x + 1

Let, f(x) = x + 5x + 2

      g(x) = x+1

we can write,

   g(x) = x+1 = 0

   g(x) = x = -1

so,        f(x) = x + 5x + 2

we can substitute x = -1 value

             f(x) = x + 5x + 2

             f(-1) = (-1) + 5(-1) + 2

             f(-1) = (-1) - 5 + 2

              f(-1) = (-1) - 3

              f(-1) = -4

Therefore,

The quotient is when x+ 5x + 2 = 6

The reminder is when x+ 5x + 2 = -4        

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Option (D) She can use the commutative property to rewrite the expression as (70 + 30 + 12.8) + 6.1 is correct.

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

It is given that:

Patti is using mental math to evaluate the expression (70 + 12.8 + 30) + 6.1.

The number expression is:

= (70 + 12.8 + 30) + 6.1

As we know from the commutative property

a +  b = b + a

Applying commutative property in the number expression:

= (70 + 30+ 12.8) + 6.1

She can use the commutative property to rewrite the expression as (70 + 30 + 12.8) + 6.1.

Thus, option (D) She can use the commutative property to rewrite the expression as (70 + 30 + 12.8) + 6.1 is correct.

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Hello!

The absolute value of any number, negative or positive, is always positive.

That's because the absolute value of a number is the number's distance from zero.

Therefore, the absolute value of 56 is 56.

Hope that helps! :)

-art lover

Answer:

3x+x ≤36

Step-by-step explanation:

Given that,

The chess club can have at most 36 members.

There are 3 times as many boys as girls in the chess club

Let there are x girls in the chess club.

Boys = 3x

ATQ,

3x+x ≤36

So, the correct inequality is (d) i.e. 3x+x ≤36

Answer:

9.9

Step-by-step explanation:

Optional (extra) info to understand length of other leg:

This triangle is an iscoceles, how can I (or we) tell?? Well, the angles of a triangle always add up to 180° and we know the angles of 2 corners, 90° and 45° so we can do this to find the last angle where "c" is the unknown corner:

180 - (90 + 45) = c

180 - 135 = c

45 = c

so "c" is also equal to 45° so we can decisively conclude that this figure is an iscoceles triangle.

How to find x:

Use the pythagorean theorem

c = √a² + b²

Then calculate using that equation

c = √7² + 7²

c = 9.9

In this case "c" is for the length of hypotenus but the image asks for x so

x = c

and

c = 9.9

so

x = 9.9

Hope this helps!

Have a nice evening!

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Pls consider marking my answer as Brainliest! It would mean a lot!

Answer:

it x = 9.9

Step-by-step explanation:

The missing value 'x' in the two-way relative frequency table is 0.36.

To convert the two-way table to a two-way relative frequency table, we need to calculate the relative frequencies for each category. Relative frequency is calculated by dividing the frequency of a particular category by the total count in that row or column.

Let's denote the missing value as 'x'. To find the value of 'x', we need to ensure that the sum of the relative frequencies in each row and each column adds up to 1.

First, let's calculate the relative frequencies for each category:

Likes hockey: The total count in this row is 12 + 18 = 30.

Relative frequency of "Likes hockey" = 12/30 = 0.4

Relative frequency of "Doesn't like hockey" = 18/30 = 0.6

Likes baseball: The total count in this column is 12 + 14 = 26.

Relative frequency of "Likes baseball" = 12/26 ≈ 0.4615

Relative frequency of "Doesn't like baseball" = 14/26 ≈ 0.5385

To ensure that the relative frequencies add up to 1, we can set up the following equations:

0.4 + x = 1 (sum of relative frequencies in the "Likes hockey" row)

0.4615 + 0.5385 + x = 1 (sum of relative frequencies in the "Likes baseball" column)

Simplifying the equations, we have:

x = 0.6 (1 - 0.4) = 0.6 * 0.6 = 0.36

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