Please help.....no one would help me so PLZZZZ

Answer: x = a/(2 + 6z)

Step-by-step explanation:

a = 2x + 6xz

a = x(2 + 6z)

x = a/(2 + 6z)

Answer:

Step-by-step explanation:

a = 2x + 6xz ....factor out x on the right side

a = x(2 + 6z) ....divide both sides by 2 + 6z

a / (2 + 6z) = x <===

After setting aside 4 hours for sports, Burt has 6 hours left for television. Since each movie is 2 hours, Burt can watch 3 two-hour movies in the remaining time.

Burt's parents allow him a total of 10 hours of television per week. Since he is planning to watch four hours of sports, we subtract this amount from the total to find the time remaining for watching movies. Here's how we solve for the number of movies Burt can watch:

Total TV time allowed: 10 hours per week

Time planned for watching sports: 4 hours

Time remaining for movies: 10 hours - 4 hours = 6 hours

Since each movie is two hours long, we then divide the remaining time by the length of one movie:

6 hours divided by 2 hours/movie = 3 movies

Therefore, Burt is planning to watch three two-hour movies this week.

The probability that Mark draws a yellow marble and then a green marble is 1/9.

To find the probability that Mark draws a yellow marble and then a green marble, we first need to find the total number of marbles in the bag. The bag contains 4 green marbles, 3 red marbles, and 2 yellow marbles, so the total number of marbles is 4 + 3 + 2 = 9.

Since Mark draws without replacement, the probability of drawing a yellow marble first is 2/9. After drawing a yellow marble, there are now 1 yellow marble and 8 total marbles left in the bag, so the probability of drawing a green marble second is 4/8, or 1/2.

To find the overall probability, we multiply the probabilities of the individual events. Therefore, the probability that Mark draws a yellow marble and then a green marble is (2/9) * (1/2) = 1/9.

Answer:

The equation of line M in slope intercept form is    [tex]y=\frac{3}{2}x+1[/tex]

The equation of line M in standard form is  [tex]3x-2y=-2[/tex]

Step-by-step explanation:

step 1

Find the slope of line M

The formula to calculate the slope between two points is equal to

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

we have the points

(2,4) and (0,1)

substitute

[tex]m=\frac{1-4}{0-2}[/tex]

[tex]m=\frac{-3}{-2}[/tex]

[tex]m=\frac{3}{2}[/tex]

step 2

Find the equation of the line M in point slope form

[tex]y-y1=m(x-x1)[/tex]

we have

[tex]m=\frac{3}{2}[/tex]

[tex]point\ (0,1)[/tex]

substitute

[tex]y-1=\frac{3}{2}(x-0)[/tex]

[tex]y-1=\frac{3}{2}x[/tex] ----> equation in point slope form

step 3

Find the equation of line M in slope intercept form

[tex]y=mx+b[/tex]

Isolate the variable y in the equation of the line in point slope form

[tex]y-1=\frac{3}{2}x[/tex]

Adds 1 both sides

[tex]y=\frac{3}{2}x+1[/tex]

step 4

Find the equation of the line M in standard form

[tex]Ax+By=C[/tex]

where

A is a positive integer

B and C are integers

we have

[tex]y=\frac{3}{2}x+1[/tex]

Multiply by 2 both sides

[tex]2y=3x+2[/tex]

[tex]3x-2y=-2[/tex] ---> equation in standard form

Final answer:

The equation of line m that contains the points (2, 4) and (0, 1) is found by calculating the slope which is 3/2, and using the y-intercept which is 1. The final equation of the line m is y = (3/2)x + 1.

Explanation:

To find the equation of line m in the xy-plane that contains the points (2, 4) and (0, 1), we first need to calculate the slope of the line. The slope m is calculated as the rise over the run. For our points, the slope can be found by the formula:

m = (y2 - y1) / (x2 - x1)

So,

m = (4 - 1) / (2 - 0) = 3 / 2.

Next, we use one of the points and the slope to find the y-intercept (b). Using the point (0, 1), we plug these values into the equation for a straight line y = mx + b:

1 = (3/2) × 0 + b

Therefore, b = 1.

The equation of line m is y = (3/2)x + 1.

Answer:

-5.5

Step-by-step explanation:

-2 + (-7/2) dividing 7 over 2 to give us -3.5

-2 + (-3.5)

that will give us -5.5

Answer:

400

Step-by-step explanation:

1 meter = 100 centimeters

8/2 = 4

4 x 100 = 400

Answer:

Step-by-step explanation:

1 meter = 100 centimeters.....so 2 meters = 200 cm

split into 8 equal pieces....200 / 8 = 25 cm <=== each piece is 25 cm

Answer:

125

Step-by-step explanation:

2375/19

The best approximation for the measure of angle ABC is 58.3° ⇒ 3rd answer

Step-by-step explanation:

Let us revise the trigonometry ratios in the right triangle ABC, where B is the right angle, AC is the hypotenuse, AB and BC are the legs of the triangle

The trigonometry ratios of the angle BAC, the opposite side to this angle is BC and the adjacent side to it is AB are

In Δ ABC

∵ ∠ BCA is a right angle

∴ The hypotenuse is AB

∵ The adjacent side to ∠ABC is BC

∵ AB = 20 centimeters

∵ BC = 10.5 centimeters

- Use cosine ratio to find the measure of the angle because you

   have the adjacent side of the angle ABC and the hypotenuse

∵ m∠ABC is x

∵ [tex]cos(x)=\frac{BC}{AB}[/tex]

∴ [tex]cos(x)=\frac{10.5}{20}[/tex]

- To find x use the inverse of cos(x)

∵ [tex]x=cos^{-1}(\frac{10.5}{20})[/tex]

∴ x = 58.33°

∴ m∠ABC = 58.33°

The best approximation for the measure of angle ABC is 58.3°

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The best approximation for the measure of angle ABC is 31.7°.

To find the measure of angle ABC (x), we can use trigonometric ratios. Since angle BCA is a right angle, we can use the sine function, which relates the opposite side to the hypotenuse in a right-angled triangle.

Let's denote the sides of the triangle as follows:

BC is the opposite side to angle ABC, with a length of 10.5 cm.

AB is the hypotenuse, with a length of 20 cm.

AC is the adjacent side to angle ABC.

Using the sine function, we have:

[tex]\[ \sin(x) = \frac{\text{opposite side}}{\text{hypotenuse}} = \frac{BC}{AB} \][/tex]

[tex]\[ \sin(x) = \frac{10.5}{20} \][/tex]

[tex]\[ \sin(x) = 0.525 \][/tex]

Now, we need to find the angle whose sine is approximately 0.525. Using a calculator or trigonometric tables, we can approximate the angle x. The angle whose sine is approximately 0.525 is about 31.7°.

The circumference of the vase is 18.84 inches.

Step-by-step explanation:

The circumference of the cylinder is same as the circumference of its base.

Moreover, the base of the cylinder is actually a circle.

So we need to find the circumference of the circle to find the circumference of the cylinder.

From the given figure, we know that the diameter of the base d= 6 inches.

∴The formula for the circumference of the circle = 2πr or dπ.

⇒ circumference = 6×3.14.

                             = 18.84.

So the circumference of the circle is 18.84 inches.

∴The circumference of the cylindrical vase is also 18.84 inches.

Option D is correct.

Final answer:

Using substitution, we solve the equation 6x + 6y = 0 for y, yielding y = -x. Substituting into -7x + 2y = 18 and solving for x gives x = -2. Substituting x back into y = -x, we find y = 2.

Explanation:

To solve the system of equations using substitution, we can isolate one variable in one equation and then substitute it into the other equation. In this case, we've been given the system:

-7x + 2y = 18

6x + 6y = 0

From the second equation, we can isolate y:

6x + 6y = 0

x + y = 0

y = -x

Now, substitute y = -x into the first equation:

-7x + 2(-x) = 18

-7x - 2x = 18

-9x = 18

x = -2

Now that we have the value for x, we can substitute it back into y = -x to find y:

y = -(-2)

y = 2

The solution to the system is x = -2 and y = 2.

Answer:

The answer is A

Step-by-step explanation:

Answer:

The answer is A. 35 degrees

Step-by-step explanation:

The triangle has to measure up to 180 degrees

add the 2 known angles together

105 + 40 = 145

Subtract the total from 180

180-145= 35

the missing angle is 35

Check Answer:

to check your answer add up all the angle measurements

your total should add up to 180

35 + 40 + 105 = 180

Answer:

a. Jake told the negative value of the expression which cannot be equivalent to the original expression.

b. 10 - [tex]$ \frac{\textbf{3}}{\textbf{7}} $[/tex] g

Step-by-step explanation:

a. The given expression is: [tex]$ \frac{-3}{7}g + 10 $[/tex]

Multiplying through out by -, we get:

[tex]$ - 10 + \frac{3}{7}g $[/tex] which was the expression given by Jake. Since, it is the negative of the original one, they cannot be equivalent.

b. [tex]$ -\frac{3}{7}g + 10 = 10 - \frac{3}{7}g $[/tex]

[tex]$ = \frac{70 - 3g}{7} $[/tex]

Hence, the answer.

Answer:

24ml

Step-by-step explanation:

First, calculate the amount needed in mg for each day.

The rate given for each dose is 150mg every 6 hours. Since there are 24 hours in a day, divide the number of hours in a day by how often to give the medication to get the number of doses each day.

24 hours ÷ 6 hours = 4 doses daily

The total mg each day is the number of doses daily multiplied by the amount in each dose.

4 doses daily X 150 mg = 600mg daily

Calculate how many mg of medication are in 1 ml given by the pharmacy.

75mg ÷ 3ml = 25mg/ml

Divide the mg of medication daily by the concentration the pharmacy dispenses.

600 mg daily ÷ 25mg/ml = 24ml

You will administer 24ml daily.

Check by doing these steps backwards:

24ml per day gives 600 mg of medication because there are 25mg per 1 ml. 24ml X 25mg = 600mg

Each day you need to administer 150mg X (24h ÷ 6h) of medication.

150mg X 4 = 600mg, which is the correct amount.

Answer:

Parallelogram

Step-by-step explanation:

This diagram shows that the opposite sides of the figure are equal.

The quadrilateral is Parallelogram.

A quadrilateral is a polygon having four sides, four points, and four vertices. The Latin words "quad," which means four, and "latus," which means side, are the source of the term "quadrilateral."

There are four basic types of quadrilaterals: parallelograms, squares, rectangles, and rhombuses. Parallelograms include the square, rectangle, and rhombus as well.

Given a quadrilateral,

in which opposite sides are parallel to each other,

the given figure shows opposite side are parallel to each other, so

according to definition of Parallelogram: The opposite sides of a parallelogram are parallel and of equal length. Additionally, opposite angles are equal.

Hence the Given  quadrilateral is Parallelogram.

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Answer:

R= {-7,-2}

Step-by-step explanation:

Answer:

x^2+9x+14=0

x^2+7x+2x+14=0

x(x+7)+2(x+7)=0

(x+7)(x+2)=0

x+7=0

x+2=0

X=-7

x=-2

Answer:

Step-by-step explanation:

25m - 100 = 450

25m = 450 + 100

25m = 550

m = 550/25

m = 22 <==== 22 months

Answer:

Quadrent One Two Three and Four

Step-by-step explanation:

The x- and y-axes divide the coordinate plane into four regions, called quadrants, named Quadrant I, II, III, and IV. They are numbered counterclockwise, with different quadrants containing points with different combinations of positive and negative x- and y-values.

The x- and y-axes of the coordinate plane divide the entire plane into four regions. These regions are known as quadrants. They are named as Quadrant I, Quadrant II, Quadrant III, and Quadrant IV.

The quadrants are numbered in a counterclockwise direction. Quadrant I, on the top right, contains all points with positive x- and y-values. Quadrant II, on the top left, contains all points with negative x-values and positive y-values. Quadrant III, on the bottom left, contains all the points with negative x- and y-values.

Last, Quadrant IV on the bottom right contains all the points with positive x-values and negative y-values.

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Answer:

Therefore the inspector can perform three tests in 35 different ways.

Step-by-step explanation:

i) It is given that there is a total of seven tests that the inspector can perform.

ii) it is also given that the inspector needs to select or choose three tests only out of the seven.

iii) therefore this is a Combination problem.

iv) therefore the number of combinations or selections possible is given by

   [tex]\binom{7}{3} = \frac{7!}{(3!)(7 - 3)!} = \frac{7!}{(3!)(4!)} = \frac{42 \times 120}{6 \times 24} = \frac{42 \times 20}{24} = \frac{21 \times 10}{6} = \frac{7 \times 10}{2} = 35[/tex]

Therefore the inspector can perform three tests in 35 different ways.

49 seventh grade students are trying out for the team.

Step-by-step explanation:

Given,

Total students at tryouts = 75

Percent of seventh grade students = 65%

Number of seventh grade students = [tex]\frac{65}{100}*75[/tex]

Number of seventh grade students = 0.65*75

Number of seventh grade students = 48.75

Rounding off to near whole number

Number of seventh grade students = 49

49 seventh grade students are trying out for the team.

Keywords: percentage, division

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Final answer:

To make 96 catnip mice, Douglas needs approximately 80 ounces of catnip.

Explanation:

To calculate how many ounces of catnip Douglas needs to make 96 catnip mice, we can set up a proportion using the given information. Since each catnip mouse requires 5/6 ounces of catnip, we can set up the proportion: 5/6 ounces / 1 catnip mouse = x ounces / 96 catnip mice. To solve for x, we cross-multiply and divide: (5/6) * 96 = x. Therefore, Douglas needs approximately 80 ounces of catnip to make 96 catnip mice.

Douglas needs 80 ounces of catnip to make 96 catnip mice.

To determine how many ounces of catnip Douglas needs to make 96 catnip mice,

we can use the given information that each catnip mouse requires 5/6 ounces of catnip.

To find the total amount of catnip needed,

we can multiply the amount of catnip required for one mouse (5/6 ounces) by the number of mice (96).

5/6 ounces/mouse * 96 mice =

(5/6) * 96 = 80 ounces

Therefore, Douglas needs 80 ounces of catnip to make 96 catnip mice.

Answer:

x = 20

Step-by-step explanation:

The two angle are a linear pair. Their measures has a sum of 180 deg.

2x + 140 = 180

2x = 40

x = 20

Answer:

The value of b for the intersection of two lines at given points is 4

Step-by-step explanation:

Given as :

The two line equations are

y = 2 x + 7                ..........A

And

y = 2.5 x + b            ............B

Since, The two lines are intersecting at point  [tex]x , y[/tex] = - 6 , - 5

Now Solving equation A and B we get

2 x + 7 = 2.5 x + b

Or, 7 - b = 2.5 x - 2 x

Or, 7 - b = . 5 x

∵ intersecting points are x , y = - 6 , - 5

putting the value of y from points

i.e 7 - b = . 5 × ( - 6 )

Or, 7 - b = 3

Or, b = 7 - 3

∴  b = 4

So, The value of b = 4

Hence, The value of b for the intersection of two lines at given points is 4 Answer

Answer:

The transformation

[tex](x,y) \rightarrow (x-5,-y+1)[/tex]

maps triangle XYZ onto triangle X”Y”Z”.

Step-by-step explanation:

Let us take point Z on the XYZ triangle and see what sequence of transformations we have to apply to map it into the point Z''.

Now Z = (-2, 2) and Z'' = (-7, -1).

The x-coordinate goes from -2 ⇒ -7.

The y-coordinate goes from 2 ⇒  -1.

The x-coordinate is just shifted by -5; thus, [tex]x \rightarrow x-5[/tex], and the y-coordinate first transforms as [tex]y \rightarrow -y[/tex], and is then shifted by 1; thus, it transforms as [tex]y \rightarrow -y+1[/tex].

So we have the full transformation

[tex](x,y) \rightarrow (x-5,-y+1)[/tex]

Answer:a

Step-by-step explanation:

a

Answer:

20%

Step-by-step explanation:

x= 400000/2000000*100

x=20

Answer:

24 cm

Step-by-step explanation:

Using the formula for a right cylinder: V = (pi)(r^2)(h) you can plug in the numbers provided

384(pi) = (pi) × (4^2) × h

<solve for h>

384(pi) = (pi) × (16) × h

<divide by 16pi>

24 = height

Answer:

24 = h

Step-by-step explanation:

V = πr²h

384π = π(4)²h

384π = 16πh

24 = h

The correct answer is; Slings should be inspected before each use.

Further explanation:

Prior to starting the workday, each sling should be visually inspected by the operators. The slings need to be inspected for stretching, gouges, and excessive wear. Also, any nicks in the sling should be checked for. If any of these things are on the slings, the sling needs to be taken out of service immediately. This should be done before starting work.

There are six different types of chains that are used, they are;

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The correct statement about slings is that they should be inspected before each use. Damaged slings should be removed immediately, not at day's end. Alloy steel chains aren't impervious to damage.

Out of the given options, the true statement about slings is that 'Slings should be inspected before each use'. To ensure the safe operation of a sling, it's crucial to examine it for any damages or wear and tear before every use.

Slings are typically used to lift or move heavy objects, and any damages can lead to accidents or equipment failure. On the other hand, the statement about alloy steel chains is incorrect as they are not impervious to damage.

Lastly, damaged slings should not be waited until the end of the day to be removed from service, they should be removed immediately upon discovering the damage.

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Step-by-step explanation: Notice that the figure shown here is a rectangle so we can find its area by using the formula length x width.

Since the length is 3/7 in and the width is 2/8 in, we can plug this information into the formula to get (3/7)(2/8).

Now multiplying across the numerators and multiplying across the denominators we get 6/56 which can be reduced to 3/28 in².