A. F(x) < 0 on the interval x < 0.
B. F (x) > 0 on the interval x <0.
C. F (x) < 0 on the interval 0 < x < 1.
D. F (x) > 0 on the interval 0 < x < 1.
E. F (x) < 0 on the interval 1 < x < 3.
F. F (x) > 0 on the interval 1 < x < 3.
G. F (x) < 0 on the interval x > 3.
H. F (x) > 0 on the interval x > 3

Answer:

-5.25, -3.5, -1.75, 0, 1.75

Step-by-step explanation:

Answer:

x = -7

Step-by-step explanation:

-3 (5x - 2) - x - 2 = 116

-15x + 6 - x - 2 = 116

-16x + 4 = 116

-16x + 4 - 4 = 116 - 4

-16x = 112

-x = 7

x = -7

Please mark brainiest would help alot :3

Answer:

using hunreds 300

using tens 20

using ones 6

300+20+6= 326

Step-by-step explanation:

All you got to do is break them apart into the places.

Plzzz mark brainlest and thank me

Answer:

Step-by-step explanation:

H

[tex]6x^2+3x+1=0\\a=6,b=3,c=1\\(-b+-\sqrt{b^2-4ac} )/2a\\\\\frac{-3+-\sqrt{-15} }{12} \\\\[/tex]

The roots are:

[tex]\frac{-3+-i\sqrt{15} }{12}[/tex]

Answer:

The $2.85 jar is the better buy.

Step-by-step explanation:

Start by finding the two separate unit rates.  Then compare them:

$2.85

---------- = $0.36/oz

8 oz

$5.65.

----------- = $0.38/oz

15 oz

The $2.85 jar is the better buy, as its unit cost is lower.

Final answer:

The 8-ounce jar of salsa at $0.35625 per ounce is the better buy compared to the 15-ounce jar at $0.37667 per ounce.

Explanation:

The student wants to determine which jar of salsa provides the best value in terms of cost per ounce. To find the unit rate, we need to divide the price of each jar by the number of ounces it contains.

For the 8-ounce jar of salsa:

Unit rate = $2.85 / 8 oz = $0.35625 per ounce

For the 15-ounce jar of salsa:

Unit rate = $5.65 / 15 oz = $0.37667 per ounce

Comparing the unit rates, the 8-ounce jar of salsa has a lower unit rate, making it the better buy.

Answer:

10 is your answer

Step-by-step explanation:

Note that the side given to us has a measurement of 5 for one of the legs of the isosceles.

This means that the 1 side on the 30-60-90 triangle has a measurement of 5.

Now, note the measurements of the triangle sides for a 30-60-90 triangle. They measure at: 1 , √3 , 2.

the side 1 is given to us, at 5. You are solving for the hypothenuse (2). Multiply 2 to the side 1

5 * 2 = 10

10 is your answer

~

Answer:

true

Step-by-step explanation:

Answer:

the most accurate answer would be option 3 relatively speaking

Step-by-step explanation:

Answer:

https://cougar.collegiate-va.org/cfoster/Mrs._Fosters_Classes/Algebra_1_files/0437_001.pdf

Step-by-step explanation: go to the 3rd page of link

The angle of elevation of the sun can be determined using trigonometry by finding the inverse tangent of the ratio of the building height to the shadow length, which is approximately 33.69 degrees.

To find this, we can use trigonometry, specifically the tangent function, which is the ratio of the opposite side over the adjacent side in a right-angled triangle. Here, the building height represents the opposite side, and the shadow length represents the adjacent side.

Using the formula tangent = opposite/adjacent, we have:

Now, we need to find the angle whose tangent is 2/3. By using a calculator or a trigonometry table, we find:

Therefore, the angle of elevation of the sun is approximately 33.69 degrees.

Answer:

1.  75 kilometers per hour

2.  5.4 kilometers

3.  I expect the storm to arrive 2.3 hours.

4.  Acceleration = 8.75 [tex]m/s^{2}[/tex]

5.  200 meters

6.  The truck will take 7.5 seconds to stop

7.  The object travels 150 meters within 10 seconds

Step-by-step explanation:

1.  Average speed = [tex]\frac{distance}{time}[/tex]

[tex]= \frac{375}{5}[/tex]

= 75 kilometers per hour

2.  Distance = speed × time

Time taken = 15 minutes

= 15 × 60

= 900 seconds

Distance = 6 × 900

= 5400 meters

= 5400/1000

= 5.4 kilometers

So, the boat traveled 5.4 kilometers.

3.  Time = [tex]\frac{distance}{speed}[/tex]

= [tex]\frac{80}{35}[/tex]

= 2.286

So, I expect the storm to arrive in 2.3 hours.

4.  Acceleration = Rate of change of velocity

= [tex]\frac{50-15}{4}[/tex]

= [tex]\frac{35}{4}[/tex]

= 8.75 [tex]m/s^{2}[/tex]

5.  Distance = speed × time

= 50 × 4

= 200 meters

6.  Time = [tex]\frac{velocity}{acceleration}[/tex]

= [tex]\frac{15}{2}[/tex]

= 7.5 seconds

The truck will take 7.5 seconds to stop

7.  Distance = Velocity × Time

= 15 × 10

= 150 meters

Hence, the object travels 150 meters within 10 seconds.

Answer:

Number 6&8 are wrong

Number 6. is 130 m

Number 8. is 300 meters in 10 seconds

Step-by-step explanation:

Answer:

Number 5: Answer B

Number 6: Answer B

Step-by-step explanation:

5) The percent of decrease from 57 to 19 is:B. 66.7%

6) The percent of markup is: D. 35%

6) To find the percent of decrease from 57 to 19, we can use the formula:

percent decrease = (original value - new value) / original value x 100%

Substituting the given values, we get:

percent decrease = (57 - 19) / 57 x 100%

percent decrease = 38 / 57 x 100%

percent decrease = 0.6667 x 100%

percent decrease = 66.7%

Therefore, the percent of decrease from 57 to 19 is 66.7%. The answer is option B.

6) To find the percent of markup, we can use the formula:

percent markup = (selling price - cost) / cost x 100%

Substituting the given values, we get:

percent markup = (184.70 - 136.50) / 136.50 x 100%

percent markup = 48.20 / 136.50 x 100%

percent markup = 0.353 x 100%

percent markup = 35.3%

Therefore, the percent of markup is 35%. The answer is option D.

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Answer:

y=0.25 please mark brainliest i worked very hard to figure this out.

Step-by-step explanation:

3 1/7=22/7

22/7/6/5=132/35

1.32=132/100

132/100/132/35=1.4y=35/100

35/100*14/10=0.25

hence, y=0.25

Answer:

[tex]\frac{n^4}{4}[/tex]

or

[tex]\frac{1}{4} n^4[/tex]

Step-by-step explanation:

The given expression is

[tex]\frac{1}{4n^{-4}}[/tex]

This is an exponential expression with a negative index in the denominator.

We can rewrite the expression so that it will be,

[tex]=\frac{1}{4}\times \frac{1}{n^{-4}}[/tex]

We now apply this property of indices. A negative index in the denominator becomes a positive index in the numerator.

[tex]\frac{1}{a^{-m}} =a^{m}[/tex]

When we apply this we get,

[tex]=\frac{1}{4}\times n^{4}[/tex]

We then simplify to obtain,

[tex]=\frac{1}{4}n^{4}[/tex]

Final answer:

To rewrite an expression without a negative exponent, take the reciprocal of the base with the positive exponent. Division of exponentials requires dividing coefficients and subtracting exponents of the same base. Eliminate negative exponents and simplify the expression to get the final result.

Explanation:

To rewrite an expression without a negative exponent, you simply take the reciprocal of the base and use the positive exponent. For example, seeking to rewrite x-n, you would transform it into 1/xn, moving the base x to the denominator and making the exponent positive.

Division of exponentials involves simplifying expressions by dividing the coefficients and subtracting exponents when the bases are the same. For instance, for expressions like am / an, the result would be am-n. In case there are numerical coefficients in front, divide those numbers directly. After simplifying, always check whether the answer makes sense and is in the simplest form.

Working with negative exponents, it's crucial to eliminate terms that result in a more straightforward expression and confirm that no negative exponents remain in the final answer, ensuring it is in its acceptable form.

Answer:

A triangle can have at most angles totalling 180 degrees.

Two angles 85 + 128 total 213 degrees so the triangle cannot exist.

Step-by-step explanation:

Answer:

no solution

Step-by-step explanation:

The sum of the three angles in a triangle adds up to 180 degrees.  We know two of the angles, 85 and 128.  We are looking for the third, x.

x + 85+128 = 180

Add the like terms

x +213 = 180

This is an impossible problem

x would have to be negative

Answer:

Since it is a right angle, you know that the angle measures 90 degrees. Since one acute angle measures 5x (times) the other, you would set it up in equation format as 5x + x = 90.

5x + x = 6x, so

6x = 90

you divide both both sides by 6 (90/6) = 15

To find the measure of the angle that is 5x (times) the other, you do 5(15) = 75 degrees and the other angle is 15 degrees, which adds up to 90 degrees.

Mark me brainiest

I think it would be x+y=3

Hope this helps

5w - 10 > 20      add 10 to both sides

5w > 30     divide both sides by 5

w > 6

Answer: 7 and 8

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

3/2 y - 3 + 5/3 z

We know the values for y (y=6) and z( z=3), so we can substitute them into the expression

3/2 * (6) - 3 + 5/3 * (3)

Multiply the terms

18/2 - 3 + 15/3

Simplify the fractions

9 - 3 + 5

Simplfiy

6 + 5

11

Answer:

YZ

Step-by-step explanation:

Parallel lines never touch. Line yz would never touch line fg.

FG is parallel to ZY

Parallel lines are two or more straight lines in a plane that never intersect. They have the same slope and will continue indefinitely without ever crossing each other. In geometry, parallel lines are denoted by double vertical bars (||).

From the figure

Since FG bisects lines XZ and XY of the triangle XYZ

FGEZ forms a parallelogram

In a parallelogram opposite sides are equal and parallel

Therefore,

FG is parallel to ZE or ZY

Properties of parallelograms include opposite sides being equal and parallel, opposite angles being equal, consecutive angles being supplementary, and diagonals bisecting each other.

learn more about parallel lines here

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Answer:

speed = [tex]\frac{m}{t}[/tex]

Step-by-step explanation:

using the formula that relates distance/ speed/ time

distance = speed × time

hence speed = [tex]\frac{distance}{time}[/tex] = [tex]\frac{m}{t}[/tex]

Final answer:

The average speed is calculated by dividing the total distance traveled by the total time taken. In algebraic form for a car traveling m miles in t hours, the average speed is V_avg = m / t.

Explanation:

To express the average speed algebraically, we can use the formula for average speed which is the distance traveled divided by the time of travel. In algebraic terms, if a car travels m miles in t hours, the average speed would be represented as:

Vavg = m / t

Here, Vavg represents the average speed, m is the total distance in miles, and t is the time taken in hours. To demonstrate this with an example, if a car travels 150 kilometers in 3.2 hours, its average speed is calculated by dividing 150 km by 3.2 h, which gives an average speed of 47 km/h.

Answer:

The first option .

Step-by-step explanation:

m must not be zero

Answer:

a) m ≠ 0

Step-by-step explanation:

Given: The function y = mx + b has an inverse function.

The given function is the equation of a line in slope-intercept form.

m is the slope and y-intercept is b.

Given that the function has an inverse function, therefore, the slope must not be equal to zero.

What if the slope is zero, if the slope is zero, then there will not be an inverse function.

Therefore, the answer is m≠ 0.

The system of equations x+y=154 and x+4y=10, can be solved by substitution method giving the solution x = 202 and y = -48.

This question is similar to other problems in algebra where you are given a system of equations. In this case, you have the equations x+y=154 and x+4y=10. We will solve this problem using substitution.

First, let's isolate x in the first equation: x = 154 - y.

Next, we will substitute (154-y) for x in the second equation: (154 - y) + 4y = 10. Simplifying this equation, we get 3y = -144, so y = -48.

Substitute back y = -48 into the first equation, we have x + (-48) = 154, which means x = 202.

So, the solution of the system is: x = 202, y = -48.

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Answer:

C  it has the largest rate of change

Step-by-step explanation:

To find the greatest rate of change, we need the largest slope

In equation form y =mx +b where y is the slope

A. 6x – 7y = 21

    Solve for y

 Subtract 6x from each side

-7y = -6x+21

Divide by -7

y = 6/7x + 21/7

The slope is 6/7

B. y = 2x – 2

The slope is 2

C. x  2 3  4

   y  7      13      19

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

       = (19-7)/(4-2)

        = 12/2

        =6

D. A linear function that goes through point 1, 2 and point 0, negative 1

 (1,2)  (0,-1)

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

       = (-1-2)/(0-1)

        = -3/-1

        =3

A) 1st Row = 31 seats

    2nd row = 37 seats

     3rd row = 37+6 = 43 seats

     4th row = 43+6 = 49 seats

      5th row = 49+6 = 55 seats

B) The formula for finding the number of seats in any row number is:

Number of seats in nth row = 31 + (n-1) *6

C)  To find the row with 103 seats,  set the equation in B to equal 103 and solve for n:

103 = 31 + (n-1)*6

Subtract 31 from each side:

72 = (n-1)*6

Divide both sides by 6:

12 = n-1

add 1 to each side:

n = 13

The 13th row has 103 seats.

Answer:

15.215 mm

Step-by-step explanation:

7.2+ 2.14 +5.875= 15.215

Answer:

hello your answer would be 15.215 mm

Step-by-step explanation:

Answer:

Product of powers; power of a power; negative exponent

Step-by-step explanation:

Answer:

y≤-8

Step-by-step explanation:

This sign represent y is no more than/is less than or equal to.

I hope this helps!=)

The number y is no more than -8 written as an inequality can be written as; y ≤ 8.

According to the question;

The inequality form of the sentence, mean that the number y can only assume maximum value of -8.

Therefore; y ≤ 8

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