Pls help and hurry i will report if you answer any unnecessary answers.

General form y= ax^2+bx+c

standard form y = a(x-h)^2+k

where

(h,k)= vertex = (7,2)

Since the zero are at -1 and 15 we have the points

(-1,0) and (15,0)

We will use one of the points (-1,0) and the vertex in the general form:

0= a(-1-7)^2+2

0= a(-8)^2+2

0= a64+2

-2 =a64

-2/64 =a

-1/32 =a

y= -1/32 (x-7)^2+2

y =-1/32 (x-7)(x-7)+2

y= -1/32 (x^2-14x+49)+2

y= -1/32 x^2+7/16x-49/32+2

y= -1/32x^2+7/16x-113/32

Answer:

Liters would be the better unit of capacity for the amount of water in a bathtub.

Step-by-step explanation:

Answer: Liters would be the better unit of capacity for the amount of water in a bathtub.

Step-by-step explanation:

Mr. Brown picks out the time that appears the most to find the mode.

He arranges the times in increasing order and picks the middle value to find the median.

The times in seconds for the 100-meter dash are as follows: 12.5, 12.4, 12.4, 12.3, 12.6, and 12.4.

The mode is the value or values that appear most frequently in a dataset.

In this case, the time that appears the most is 12.4, which occurs three times.

Therefore, the mode is 12.4.

The median is the middle value in a dataset when arranged in increasing or decreasing order.

When we arrange the times in increasing order, we have: 12.3, 12.4, 12.4, 12.4, 12.5, 12.6.

The middle value is 12.4, so the median is 12.4.

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Answer:

4 hours

Step-by-step explanation:

We can already assume that the freight train is 60 miles ahead of the express. If the freight is going at a constant of 30 mph and the express goes 50 mph then we can say that when the freight train has been gone for 6 and the express for 4 the express will have passed the freight. The reason as to why would be that 60 + 120 = 180 or 60 + (30 x 4) = 180 and 50 x 4 = 200 .

Sorry if that explanation doesn't make sense but I hope this helped.

Answer:

1239 it is 1239 I think I have same test

Answer:

8

Step-by-step explanation:

Say the number of rabbits is r, we can write the rabbits, horses, and hamsters in terms of r:

So the total amount of pets is r+(r-7)+3r=33:

Check your work:

Answer:

4√4123

Step-by-step explanation:

Therefore , the volume of the  decagonal prism is 246.21468296 cm^3.

The quantity of space that matter takes up is measured by its volume. A physical substance that takes up space and has mass is referred to as matter. Cubic meters are the accepted unit of volume in physical sciences like chemistry (m3). From this, other units like the litre (L) and milliliter (mL) are generated (mL).

Here,

The base of the perpendicular prism is a square-shaped regular decagon with a side length of 8 cm.

The 10 isosceles triangles that make up the regular decagon with side a = 8 cm in length each have an angle at their bases of 90-36/2 = 72 o and an apex of 360/10 = 36 o. (2/2)tan 72 divided by 3.077683537 is the height of the isosceles triangles.

The surface area of each isosceles triangle is equal to 3.077683537*8/2, or 12.310734148cm2.

The decagon's surface measures 123.10734148 cm2 or 12.310734148 * 10 cm2.

123.10734148*2 = 246.21468296 cm3 is the decagonal prism's volume.

The decagonal prism's volume is 246.21468296 cm3, according to this.

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Answer:

443.1 cm²

Step-by-step explanation:

The prism has two bases that are regular decagons and 10 faces that are congruent rectangles.

perimeter = 40 cm

there are 10 sides

perimeter = 10s

10s = 40 cm

s = 4 cm

Each rectangular face measures 4 cm by 8 cm.

LA = 10 × lw = 10 × (4 cm)(8 cm) = 320 cm²

The lateral area is 320 cm².

Each base is a decagon.

The sum of the measures of the interior angles of a decagon is:

(n - 2)180° = (10 - 2)180° = 1440°

Each interior angle measures 1440°/10 = 144°

The base can be divided into 10 congruent isosceles triangles with bases angles measuring 72°.

Half of the base of each triangle measures 2 cm.

tan 72° = h/(2 cm)

h = 2 tan 72° cm

h = 6.155367 cm

The height of each triangle is 6.155 cm, and the base is 4 cm.

The area of the base is

BA = 10 × bh/2 = 10 × 4 cm × 6.155367 cm / 2 = 123.1073 cm²

The total surface are is:

SA = LA + BA = 320 cm² + 123.1073 cm²

SA = 443.1 cm²

Answer:

cc

Step-by-step explanation:

Answer:

B, yes because if you fold it in half then you have symmetry

Step-by-step explanation:

The quality of being made up of exactly similar parts facing each other or around an axis.

Subtract the minimum data value from the maximum data value to find the data range. In this case, the data range is \(12-0=12\).

\(\bold{12}\)

The sequence of transformation is; B. A translation 2 units to the right and 1 unit up followed by a counter-clockwise rotation 90° about the origin.

From the given image in the transformation, we can see that the pre image which is the original image is on the right hand side while the image after transformation is on the left hand side.

Now it will be noticed that in the pre image, all the x and y coordinates are positive while the image after transformation has all the x-coordinates as negative with the y-coordinates as positive.

This transformation when critically examined is seen to be a translation 2 units to the right and 1 unit up followed by a counter-clockwise rotation 90° about the origin.

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Answer: its B

Step-by-step explanation:

=================================================

Explanation:

Plug in x = 3 to find that f(x) = 3/x outputs f(x) = 1

This shows (x,y) = (3,1) is on the function curve. This means the curve has some portion of it in the upper right quadrant.

This narrows the answer choices between B and D.

Now try x = -3 to find that f(-3) = -1

So (-3,-1) is another point on the curve.

This rules out choice D, and means choice B is the final answer.

Use something like a TI83/84, Desmos, or GeoGebra to verify the answer.

Answer:

photosynthesis is a processes by which plants get their proteins

Answer:

4 (g cm³)

Step-by-step explanation:

Volume of a rectangular block (prism) = length X width X height

we have 2 X 3 X 25 = 150 cm³

Formula for density is

density = mass/volume

            = 600/150

            = 4 (g cm³)

Answer:

Step-by-step explanation:

we find the weekly wage: 7.50 x 40 = $300, he works 2 extra hours paid 7.50 1/2 an hour, so he has an extra $22.50, add up and we get the wage 300 + 22.50 = $322.50

Solutions cannot be more concentrated than a solution that has a %T of 10%

Solutions cannot be less concentrated than a solution that has a %T of 90%.

Beer's Law:

Beer's law (sometimes called Beer-Lambert's law) states that absorption is proportional to the path length b through the sample and the concentration c of the absorbing substance: The constant of proportionality is sometimes designated by the symbol a, which makes Beer's law literal.

The linearity of the law is limited by chemical and instrumental factors. The reasons for the nonlinearity are: Absorbance deviation at high concentrations (>0.01 M) due to electrostatic interactions between adjacent molecules.

Limitation of Beer's Law:

The linearity of the law is limited by chemical and instrumental factors.

Causes of non-linearity include:

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Answer:

B (1)

Step-by-step explanation:

Answer:

Correct option is

B

2.1 cm

Step-by-step explanation:

Answer:

50

Step-by-step explanation:

180-130=50

Supplementary angles mean either of two angles whose sum is 180°

Answer:

19/12 or 1 7/12

Step-by-step explanation:

1/4*3=3/4

3/4+5/6

9/12+10/12= 19/12

The chemiosmotic synthesis of ATP is a process that occurs in the mitochondria and involves the production of ATP through the flow of protons (H+) across a membrane. This process is driven by a proton gradient established by the electron transport chain.

During cellular respiration, electrons are passed along the electron transport chain, pumping protons from the mitochondrial matrix into the intermembrane space. This creates a proton gradient across the inner mitochondrial membrane. The protons then flow back into the matrix through ATP synthase, a complex enzyme embedded in the membrane. As the protons move through ATP synthase, their energy is used to phosphorylate ADP to ATP.

In summary, the chemiosmotic synthesis of ATP relies on the flow of protons across a membrane, driven by the electron transport chain. This process enables the coupling of electron transfer with ATP synthesis, providing cells with the energy currency required for various biological processes.

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Which of the following statements accurately describes the chemiosmotic synthesis of ATP?

Answer:

Ken will have to run 3 Laps , Hamid will have to run 4 Laps

Taking LCM (80,60) = 240 seconds

plz mark as brainliest..

80 has to do 3. 60 has to do 4.

The required area of the triangle formed by segment DE with point F at origin is equals to 5/2 × √(61) square units.

End points of the segment are D and E.

Coordinates of D and E are,

D ( 0, -6 ) and E ( 5, 0 ).

F is at origin .

Coordinates of F are ( 0 ,0 ).

Using the distance formula,

Length of DE is equal to,

DE = √[(5 - 0)^2 + (0 - (-6))^2]

⇒ DE = √[25 + 36]

⇒ DE =√(61)

Length of EF is equals to,

EF =√[(5 - 0)^2 + (0 - 0)^2]

⇒EF = √(25)

Length of FD is equals to,

FD = √ ( 0 + 6)² + (0 - 0)²

⇒ FD = √36

EF² + FD² = (√36)² + (√25)²

                = 36 + 25

                = 61

                = DE²

Applying Pythagorean theorem,

Triangle DEF is a right triangle

90-degree angle at point E.

Area of triangle DEF,

Area = 1/2 × base × height

Base DE has a length of √(61),

And the height EF has a length of 5.

Plug these values into the formula,

Area = 1/2 ×√(61) × 5

⇒ Area = 1/2 × 5 × √(61)

⇒ Area = 5/2 × √(61)

Therefore, the area of triangle DEF is equals to 5/2 × √(61) square units.

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The above question is incomplete, the complete question is:

Is a right triangle with point F at the origin segment DE has endpoints located at D(0, - 6) and E(5, 0) what is the area of triangle DEF?

Answer:

Multiplication:

4.5x = 36 or ? · 4.50 = 36

Division:

Total cost  / cost per ticket = number of tickets or 36 ÷ 4.50 = ?

Answer:

Exact form : t=1/2 and Decimal: 0.5