Please what is this I need help

Answer:

by factoring the answer is - x=1/2, 5

Step-by-step explanation:

hope it helps:))

Answer:

x=-½

x=5

Step-by-step explanation:

2x²-5x-10=4x-5

2x²-5x-10-4x+5=0

2x²-9x-5=0

2x²+x-10x-5=0

x(2x+1)-5(2x+1)=0

(2x+1)(x-5)=0

2x+1=0

2x=-1

x=-1/2

x-5=0

x=5

Answer:

D

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given the volume of air in liters in the human lungs described by the function V(t) = 0.173t +0.15t^2 - 0.035t^3 where t is the time in seconds,

The beginning of this respiratory cycle for the lungs to fill to their maximum volume of air occurs when dV/dt = 0

dV/dt = 0.173 + 0.3t - 3(0.035)t²

dV/dt = 0.173 + 0.3t - 0.105t²

Since dV/dt = 0

0.173 + 0.3t - 0.105t² = 0

multiply through by -1

-0.173 - 0.3t + 0.105t² = 0

0.105t² -0.3t-0.173 = 0

Factorize;

t = 0.3±√0.3²+4(0.105(0.173))/2(0.105)

t = 0.3±√0.09+0.07266/0.21

t =  0.3±√0.16266/0.21

t = 0.30±0.4033/0.21

t = 0.7033/0.21

t = 3.349secs

t ≈ 3.4secs

Hence it will take about 3.4secs for the lungs to fill to their maximum volume of air

Answer:

66%, 69%, 72%

63%, 65%, 67%

67%, 72%, 77%

Step-by-step explanation:

it says that people recommend the same intensity for three then increasing for three then decreasing thus repeating this cycle

so anyways for the fourth fifthe and sixth visit itll be an increasing sensitivity

Anyways for the fourth fifth and sixth visit, it'll be an increased sensitivity.

We have given that,

The table represents the recommended exercise intensity for an aerobic program based on the number of visits since beginning the program.

A 2-column table with 6 rows titled Intensity of Exercises. The first column is labeled Number of Visits with entries 1, 2, 3, 4, 5, and 6.

66%, 69%, 72%

63%, 65%, 67%

67%, 72%, 77%

The intensity or flux of radiant energy is the power transferred per unit area, where the area is measured on the plane perpendicular to the energy's propagation direction.

it says that people recommend the same intensity for three then increasing for three then decreasing thus repeating this cycle

so anyways for the fourth fifth and sixth visit, it'll be an increased sensitivity.

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We first of all have to simplify this expression to be 2.7g+1.2=12 then subtract 1.2 to both sides and that = to 10.8 and then divide both sides by 2.7 and you will get 4 so,

G=4

Answer:

wym?? where's the expressions or am i just dumb

Step-by-step explanation:

Answer:

what expression?

Step-by-step explanation:

Answer:

54

Step-by-step explanation:

Width times height equals area so 9x6=54

Answer:

Copper, and Zinc

Step-by-step explanation:

This is because Copper and Zinc are the only elements listed on the modern day Periodic Table of Elements.

Feel free to give brainliest.

Have an outstanding day!

Answer:

B

Step-by-step explanation:

A linear equation has the highest degree of 1.

In other words, there is only one x, and this x is to the first power.

Graphically, linear equations are lines.

Hence, the correct answer is B.

A is incorrect because it is the reciprocal of x, which is a rational function.

C and D are incorrect because the highest degree is 2, making them quadratics.

Answer:

B)

Step-by-step explanation:

A) Rational

B) Linear Equations

C) Quadratic Equations

D) Quadratic Equations

=== Terima Kasih ===

Answer:

yes but y do u ask?

Step-by-step explanation:

Answer:

lol

Step-by-step explanation:

Answer:B

Step-by-step explanation:

Answer:

y=3/2x+1/2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Standard form of linear equation:

Using the given points, we find the slope and y-intercept, in slope-intercept form of y = mx + b

Converting to standard form

Answer:

it would be $300 because it is $12 per frame so u would multiply 12*15 and get 180 then with $8 shipping u multiply 8*15 and get $120 then add 120+180 to get $300

Step-by-step explanation:

hope this helped:)

Answer:

3.47 mm

Step-by-step explanation:

Answer:

The Trout will have to jump 49 cm in order to catch the insect

Step-by-step explanation:

Here, we want to calculate the distance the Trout has to jump in order to catch the Insect

To calculate this, we need to know the difference in the distances

From what we have, the Trout is 32 cm below the surface while the Insect is 17 cm above the surface of the lake

The difference in height which will represent the distance that the Trout has to jump to catch the insect will be ;

17 + 32 = 49 cm

Each team-mate practices for 60 hours.

You know this because if you divide 4,380 (the total amount of hours) by 73 (the total amount of players) you get 60.

Answer:

Step-by-step explanation:

I can't really graph it for you, but I will show you how to.

-x is the value on the horizontal axis, which are 1,2,3,4,6

if you replace x for 1, which is

y= -4(1) + 3

y= -1

so you can graph that point (1,-1)

you can replace x with other numbers on the horizontal axis.

Hope this helps

Answer:

The correct answer is $2,50.

Step-by-step explanation:

The unit rate is what we use to determine the price of a single unit, when something is sold in a group, as in this case 5 ounces.

We have been told that $ 12.50 is the price for 5 ounces, but what we want to know is how much 1 ounce costs.

To determine this, what we must do is divide the total price by the quantity of ounces, in order to determine the unit price:

12.50 / 5 = 2.50

In this way we can verify that the unit price of 5 ounces is $ 2.50

Answer:

it's 5

Step-by-step explanation:

you should use pythagoras theorem

Answer:

b = 5

Step-by-step explanation:

a^2 + 12^2 = 13^2

a^2 + 144 = 169

         -144    -144

[tex]\sqrt{a^2}[/tex]  = [tex]\sqrt{25}[/tex]

a = 5

[tex]a^2 + b^2 = c^2[/tex] pythagoream theory

Answer:

Step-by-step explanation:

12/864 = 71 r4

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

864 ÷ 12 = 72

The number of people needed to attend their breakfast in order to raise $864 is 72 people.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example:

2 + 3x + 4y = 7 is an expression.

56÷ 4 is an expression.

We have,

Henry's soccer team is trying to raise $864 to travel to a tournament in Florida, so they decided to host a pancake breakfast.

Each person must pay $12 for the breakfast.

The number of people needed to attend their breakfast in order to raise $864.

= 864 ÷ 12

= 864 / 12

= 72 people

We can cross-check.

Amount collected from 72 people.

= 12 x 72

= $864

Thus,

The number of people needed to attend their breakfast in order to raise $864 is 72 people.

Learn more about expressions here:

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Answer: So the answer is 2.83

Step-by-step explanation: This is a terminating decimal number, so if I round up to the nearest trillionth place it will be 2.83. Just only give me a thanks and 5-star rate. :)

Answer:

if the x and y coordinates that mean that number is the solution to whatever the question is.

Step-by-step explanation:

Answer:

40.3miles/hr

Step-by-step explanation:

Given parameters:

Time taken  = 40min

Distance covered  = 27mile

Unknown:

Speed in miles per hour = ?

Solution:

Speed is the distance divided by the time;

   Speed  = [tex]\frac{distance }{time}[/tex]

convert the time to hrs;

               60min  = 1hr

                40min  = [tex]\frac{40}{60}[/tex]   = 0.67hr

Insert the parameters and solve;

        Speed  = [tex]\frac{27}{0.67}[/tex]   = 40.3miles/hr

Answer:

A.2/x+1 ............

The composite function f(g(x)) is 2/x + 1

Given the function

We are to get the composite function (fog)(x)

This can be written as:

f(g(x)) = f(2/x)

f(2/x)= 2/x + 1

Hence the composite function f(g(x)) is 2/x + 1

Learn more on composite function here: https://brainly.com/question/10687170

Answer:

Step-by-step explanation:

since ΔABC is ≅ to ΔEDC

where ∠A = 40°

∠E = 40° because ∠A ≅ ∠E

Answer:

its 3 solve -6

Step-by-step explanation:

Answer:

Where are the pictures

Step-by-step explanation:

Answer:

670.9

Step-by-step explanation:

because 670.9 is bigger and 670.008 has more 0's and 0's aren't greater