please i need help with these
( please notice that on the first one there is squares those dont matter dont worry about them please)

After 31 seconds, the bottle of Jason and Pedro will have the same amount of water.

According to the question,

We have the following information:

Jason's water bottle has 20 ounces of water, and he is drinking at the rate of 1 ouncer per second. Pedro's water bottle contains 65 ounces of water, and he is drinking at a rate of 2.5 ounces per second.

So, the water is decreasing at the constant rate. So, there will arithmetic progression where d is the rate.

Formula used to find nth term of an A.P:

an = a+(n-1)d where a is the first term

For Jason:

an = 20+(n-1)-1

an = 20-n+1

an = 21-n

For Pedro:

an = 65+(n-1)-2.5

an = 65-2.5n+2.5

an = 67.5-2.5n

Now, we have the following expression for equal amount of water:

21-n = 67.5-2.5n

21-67.5 = -2.5n+n

-46.5 = -1.5n

n = 46.5/1.5

n = 31

Hence, after 31 seconds, the bottle of Jason and Pedro will have the same amount of water.

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Answer: (8x + 2) = 6

Step-by-step explanation:

Answer:

8(x) + 2 = 6

Step-by-step explanation:

Answer:

39 bad checks because due to the math, 7 bad checks are received in a day

a. For selling 1000 shoes, profit earned will be $140,000

Given,

Danielle is engineering a new brand of shoes. For x shoes sold,

in thousands, a profit of p(x) = -3x4 + 4x³ - 2x² + 5x + 10 dollars, in ten thousands, will be earned.

we are asked to determine the profit for selling 1000 shoes = ?

when sold 1000 shoes

X = 1 (in thousands)

substitute X=1 into p(x) = -3x⁴+4x³-2x²+5x+10

thus p(1) = -3×1⁴ + 4×1³ - 2×1² + 5×1 + 10

= -3+4-2+5+10

= 14 (in ten thousand)

so the profit is 14×10000 = 140,000

b. X intercepts means that when he sold X shoes, the profit p(x) equals zero, but the value doesn't make sense, because as long as he sold shoes, the profit would not be zero.

y intercepts means that when he sold zero shoes, the profit he earns,

calculate p(0)=10, the profit is greater than zero , it doesn't make sense, because if he sold zero shoes, there would not be income and profit.

Hence we get the required answers.

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The value of x is 10, in the diagram, Vertically opposed angles

What is Vertically opposed angles?

Two lines intersecting at a point create vertical angles. Every time they are on an equal footing. Alternatively stated, four angles are created anytime two lines cross or intersect. Two opposed angles are equal and are referred to as vertical angles, as we can see. Due to their position opposite one another, they are also known as "Vertically opposed angles."

Angles that are vertically opposed to one another at a certain vertex are formed by two straight lines intersecting. The equality of the vertically opposed angles has been established.

Here in the diagram 5x = 2y

y = 5X/2

We have 2y+2y+8x = 180 in a straight line.

So 4y+8x = 180

4(5x/2) +8x = 180

10x+8x = 180

x = 180/18

x = 10

Hence, the value of x is 10, in the diagram.

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The equations after the transformations are given as follows:

a) Shifted 7 units up: [tex]y = 3^x + 7[/tex].

b) Shifted 6 units left: [tex]y = 3^{x + 6}[/tex]

c) Reflected over the x-axis and over the y-axis: [tex]y = -3^{-x}[/tex].

There are four cases for the translation of an image, and their rules are listed as follows:

In this problem, the function is:

y = 3^x.

For a shift of 7 units up, we have that:

y = f(x) + 7 = 3^x + 7.

For a shift of 6 units left, we have that:

y = f(x + 6) = 3^(x + 6).

The rules for reflections over the axes are given as follows:

Hence, for a reflection over both axes, the rule is:

y = -f(-x).

Considering the function in this problem, the rule is:

[tex]y = -3^{-x}[/tex]

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Answer:

4,096

Step-by-step explanation:

=4^8 / 4^2

=4^6

=4,096

The domain of relation  {-9, -8, -7, -6} and range of relation is  {3} and the relation represents a function.

A function is defined as a relation between a set of input having only one output.

Now,

The relation is;

{(-9,3),(-8,3),(-7,3),(-6,3)

Hence, The domain of relation = {-9, -8, -7, -6}

And, Range of relation = {3}

Clearly, Each input (domain) has only one output (range)

Hence, The given relation is function.

The domain of relation  {-9, -8, -7, -6} and range of relation is  {3} and the relation represents a function.

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The equation which is quadratic in form is, [tex]6(2x+4)^2 = (2x+4)+2[/tex].

What is quadratic equation?

The polynomial equations of degree two in one variable of type

f(x) = ax^2 + bx + c = 0 and with a, b, c ∈  R and a ≠ 0 are known as quadratic equations. It is a quadratic equation in its general form, where "a" stands for the leading coefficient and "c" for the absolute term of f. (x).

Consider the given equations,

[tex]x^4-6x^2-27=0\\3x^4=2x^2\\2(x+5)^4+2x^2+5=0\\6(2x+4)^2=(2x+4)+2\\6x^4=-x^2+5\\8x^4+2x^2-4x=0[/tex]

The first, second, third, fifth and sixth equation are all having 4th degree.

So, by the definition of quadratic equation, these equations are not a quadratic.

Consider, the fourth equation,

[tex]6(2x+4)^2=(2x+4)+2\\[/tex]

Simplifying this, we get

[tex]6(4x^2 + 16x + 16 = 2x + 6\\24x^2 + 96x + 96 = 2x + 6\\24x^2 + 96x - 2x + 96 - 6 = 0\\24x^2 + 94x + 90 = 0[/tex]

This equation having degree 2.

Therefore the equation [tex]6(2x+4)^2 = (2x+4)+2[/tex] is a quadratic equation.

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Answer:

The y-intercept is 12

Step-by-step explanation:

the equation is: x - 1/2y = -6

We need to find the y-intercept which is the y value when x=0.

Knowing that, we can just substitute 0 for x to get:

0 - 1/2y = -6

From there, it's just algebra so:

0 - 1/2y = -6

-1/2y = -6

-0.5y = -6

y = 12

Answer:

Equation: y = -4x + 1

Slope: -4

Y-intercept: y = 1

Step-by-step explanation:

To find the equation of the line you need the gradient and the y-intercept

To find the gradient we need to divide the change in y by the change in x:

As the graph has a negative correlation the gradient would have a minus which is why it would be -4!

To find the y-intercept we need to find the number on the y-axis that the line crosses which in this case would be y = 1!!

Hope this helps, have a great day!!

Answer:

equation:y=4x+1

y-intercept:1

slope:4/1 or 4

Step-by-step explanation

the equation has to be in slope intercept form which is [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept. the y-intercept is when x is 0 in this case when x is 0 y is 1 (0,1) so the y-intercept is 1. the slope is rise/run so pick two points that cross the grid perfectly and count the units rise and run. this line rises 4 and runs 1 so the slope is 4/1 so 4 hence the equation [tex]y=4x+1[/tex]

Answer:

(a.):  m∠ ACB = 40°; (b.):  m ∠CBA = 25°; (c.):  m ∠CAB = 115°

Step-by-step explanation:

Because Lines AB and DE are parallel, we can use the angle relationships to find the angles.

(For context of the problem, we can label the 40° angle as ∠C and the 155° as ∠B)

(a.) Angles C and ACB are vertical angles, which means they're congruent.  Thus m ∠ACB = 40°.

(b.) AB is a straight line and angles B and CBA are supplementary angles.  This means their total sum is 180°.  We need to subtract angle B from 180 to find m ∠CBA:

[tex]180-155=CBA\\25=CBA[/tex]

(c.) We know that the sum of all the angles is 180°.  Thus, we can subtract the sum of angles CBA and CBA from 180 to find the m ∠CAB:

[tex]180-(40+25)=CAB\\180-65=CAB\\115=CAB[/tex]

Answer:

600 is the answer to the question

Answer:

90

Step-by-step explanation:

14/20 = 0.7

28/40 = 0.7

63/90 = 0.7

Hope this helps.

Answer:

Step-by-step explanation:

The answer is D. 90 because the other numbers

14/20=.7

28/40=.7

63/90=.7

therefore, it would be 90.

Answer: $173.96

Step-by-step explanation: If I'm not mistaken first you have to take 106 and multiply it by 2 to count for the round trips so that makes 212 miles for one trip, then you have to multiple by 8 to figure out how many miles in total which equals  1696, then you divide by the 35 to figure out how many gallons she use, which is 48.457(rounded) then you multiple that by the rate of gas which is 3.59 which means she spent 173.96(rounded to the nearest tenth)

Answer: D.

Step-by-step explanation:

Equilateral, scalene, and isosceles are all valid types of triangles.

The side x is 6 cm when the triangle inside the parallelogram.

Given that,

In the picture we have triangle inside the parallelogram.

We have to find x side.

The parallelogram is ABCD.

Taking E as a midpoint of the AD.

The triangle is CDE.

The side CD is 6cm and ∠E is 90°.

The side ED is x cm.

Taking the trigonometric ratios that is

SinE= Opposite side/ hypothesis

Sin90° = 6cm /x cm

1= 6cm /x cm

x=6cm

Therefore, The side x is 6 cm when the triangle inside the parallelogram.

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Answer:

5

Step-by-step explanation:

Length is a positive number.  Count the spaces from -2 to -7

Answer:

7 cm

Step-by-step explanation:

assuming you require the length of the 3 equal sides.

let one of the equal sides be x then perimeter is

P = 3x + 5

given P = 26 , then

3x + 5 = 26 ( subtract 5 from both sides )

3x = 21 ( divide both sides by 3 )

x = 7

the 3 equal sides are 7 cm each in length

The equations for Mechanic G is y = 30x and for mechanic K is y = 20x + 30

Rate is a ratio that compares two different quantities which have different units. For example, if we say John types 50 words in a minute, then his rate of typing is 50 words per minute. The word "per" gives a clue that we are dealing with a rate.

for mechanic G since he charges 30 dollars per hour, for x hours his charge will be 30x

so that y = 30x

For K since he charges at rate of 20 dollars per hour, his charge after x hours will be 20x. if he takes 30 dollars reservation fee

then his total cost is y = 20x + 30

In conclusion, the equations for mechanic G and K are y = 30x and y = 20x + 30 respectively.

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These triangles can be proven congruent by using ASA RULE.

What is congruent triangles and its rules ?

When two triangles are congruent, their three sides and their three angles match precisely.

If there is a turn or a flip, the equal sides and angles might not be in the same place, but they are still present.

ASA rule stands for Angle-Side-Angle rule which means two angles and a side of both triangles are equal.

Main Body:

In ΔTUV and ΔTWV

VT =VT                 ----(1)

∠VTU=∠TVW      -----(2)

As TUVW is a parallelogram

so, ∠T = ∠U

hence, ∠TVU =∠VTW    ----(3)

taking equation 1, 2,3

therefore, ΔTUV ≅ ΔTWV by ASA rule which means by Angle- Side- Angle rule.

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(C) This is not a function.

The equation x = 3 represents a vertical line and not a mapping from values of x to values of y.

Hence, its a equation not a function.

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The answer is earthquakes: open up large cracks in Earth’s crust tsunamis: erosion of beaches.

What is tsunamis?

Giant waves that are brought on by ocean floor movement are known as tsunamis. Landslides, underwater volcanic eruptions, earthquakes, and even meteorite collisions can cause the ocean floor to tremble. These are often referred to as seismic sea waves, albeit they are sometimes misidentified as tidal waves. A tsunami is a set of waves that are caused by a disturbance in the ocean or another body of water, such as an earthquake, landslide, volcanic eruption, or meteorite strike.

The water above shifts up or down as a result of undersea earthquakes, which often take place along tectonic plate borders. Earth’s crust tsunamis: erosion of beaches.

Hence, earthquakes: open up large cracks in the Earth’s crust tsunamis: and erosion of beaches.

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The probability of having at least one white marble, using the hypergeometric distribution, is of:

0.7778 = 77.78%.

The mass probability formula is presented as follows:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The parameters are listed as follows:

In this problem, the values of these parameters are listed as follows:

The probability of having at least one white one is:

P(X > 0) = 1 - P(X = 0).

In which:

[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}C_{N-k,n-x}}{C_{N,n}}[/tex]

[tex]P(X = 0) = h(0,10,5,2) = \frac{C_{2,0}C_{8,5}}{C_{10,5}} = 0.2222[/tex]

Then:

P(X > 0) = 1 - 0.2222 = 0.7778 = 77.78%.

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The positive solution for the given equation is 7 .

In the question ,

it is given that ,

when a number 14 is subtracted from the square of number ,

then the result is 5 times the number .

let that number be "x" .

So , the equation representing the amount statement is

x² - 14 = 5x

x² - 5x - 14 = 0

By using splitting the middle term method to find the solution.

we get ,

x² - 7x [tex]+[/tex] 2x - 14 [tex]=[/tex] 0

taking x common ,

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

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

we get , x + 2 = 0        and x - 7 = 0

the solution as x = -2     and x = 7 ,

Therefore , The positive solution for the given equation is 7 .

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Answer:7

Step-by-step explanation:

The amount of loan after 2 years will be $6491.4.

What is Simple interest?

A quick and easy method of calculating the interest charge on a loan is called a Simple interest.

Given that;

Interest rate = 4.5%, compounded continuously.

Time = 2 years

Initial value = $3100

Now,

We know that;

The formula for amount after continuous compound interest is,

⇒ [tex]A = P e^r^t[/tex]

Where,  P is principal, r is rate per year, t is time in year.

Substitute all the values, we get;

⇒ [tex]A = P e^r^t[/tex]

⇒ [tex]A = 3100 e^{0.045 * 2}[/tex]

⇒ [tex]A = 3100 e^{0.09[/tex]

⇒ [tex]A = 3100 * 1.094[/tex]

⇒ [tex]A = 6491.4[/tex]

Thus, The amount of loan after 2 years will be $6491.4.

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Answer:

550 coins

Step-by-step explanation:

2% = 2/100 = 0.02

11/0.02 = 550

The collection consists of 550 coins

Hope this helps

Answer:

D: 1+2x6

Step-by-step explanation:

5+2^3

5+8

13

1+2x6

1+12

13

D is the only option equal to 13

Hopes this helps please mark brainliest