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Answer:

The measure of angle ABC is 34°

Step-by-step explanation:

we know that

The measurement of the outer angle is the semi-difference of the arcs it encompasses.

so

∠ABC=(1/2)[major arc AC-minor arc AC]

∠ABC=(1/2)[major arc AC-146°]

Find the measure of major arc AC

major arc AC=360°-146°=214°

substitute

∠ABC=(1/2)[214°-146°]=34°

Explanation:

Answer:

False

Explanation:

There are a number of veins and arteries attaching to the heart. The superior and inferior vena connect to the right atrium, while the pulmonary veins connect to the left atrium. The pulmonary artery connects the right ventricle to the lungs, while the aorta connects the left ventricle to the body.

Answer:

No

Step-by-step explanation:

If y is a function of x, then the equation would be written as a "y =" equation, not an "x = " equation.  This example is one where x is a function of y.

Answer:

about 75 percent of its force

Step-by-step explanation:

Answer:

15 units

Step-by-step explanation:

similar triangles

9/x = x/25

x = 15

Answer:

Explanation:

no

Answer:

In what ways are humans like the other primates?

Primates and humans have taking hands and feet that let them hang from branches, grab food, and, in some primates, use tools. The first digit in many primates and humans are opposable and at least some, if not all, of the digits, have nails.

Unlike the eyes of shrews and squirrels, which sit on each side of the head so that the two fields of vision do not overlap, the eyes of primates and humans are shifted forward to the front of the face. This produces an overlapping binocular vision that lets the brain judge distance precisely—important to an animal moving through the trees.

In what ways are we unique?

The first hominids were australopithecines. The ability to walk upright on two legs marks the beginning of hominid evolution. Humans diverge from apes in numerous areas of anatomy related to bipedal locomotion. Because humans walk on two legs, their vertebral column is more curved than an ape’s, and the human spinal cord exits from the bottom rather than the back of the skull. The human pelvis has become broader and more bowl-shaped, with the bones curving forward to center the weight of the body over the legs.

Answer: A segment in the image is proportionally longer or shorter than its corresponding segment in the pre-image.

Step-by-step explanation:

• A dilation is a transformation that maps an image that is the similar to the actual shape .

i.e. It creates images of same shape but of different size.

A dilation stretches or shrinks a shape by using the scale factor and about the fixed center of the dilation.

Given : Quadrilateral EFGH was dilated by a scale factor of 2 from the center (1, 0) to create E'F'G'H'.

Then Quadrilateral EFGH must be similar to E'F'G'H'.

It means sides of Quadrilateral EFGH must be proportional to sides of Quadrilateral E'F'G'H'.

Hence, the correct characteristic of dilation compares segment E'F' to segment EF is :

A segment in the image is proportionally longer or shorter than its corresponding segment in the pre-image.

Answer:

x=-2  y=3

Step-by-step explanation:

7x-2y=-20

9x+4y=-6

Multiply the first equation by 2

2(7x-2y) = 2 * -20

14x - 4y = -20

Add this to the second equation

14x - 4y = -40

9x+4y=-6

--------------------------

23x = -46

Divide by 23

23x/23 = -46/23

x = -2

Now we solve for y

9x+4y=-6

9(-2) +4y = -6

-18 + 4y = -6

Add 18 to each side

-18+18 +4y = -6+18

4y = 12

Divide by 4

4y/4 = 12/4

y=3

Answer:

final equilibrium temperature of the system is ZERO degree Celcius

Explanation:

Hear heat given by water + iron = heat absorbed by ice

so here first we will calculate the heat given by water + iron

now the heat absorbed by ice so that it will melt and come to the final temperature

now we will have

since it is coming out negative which is not possible so here the ice will not completely melt

so final equilibrium temperature of the system is ZERO degree Celcius

Answer:

Work done, W = −287500 Joules

Explanation:

It is given that,

Mass of the car, m = 920 kg

The car is travelling at a speed of, u = 90 km/h = 25 m/s

We need to find the amount of work must be done to stop this car. The final velocity of the car, v = 0

Work done is also defined as the change in kinetic energy of an object i.e.

W = −287500 Joules

Negative sign shows the work done is done is opposite direction.

Answer:    The amount of energy needed to heat the body by 1 ° C (Q)

Explanation:  The heat capacity or as it is called the thermal mass is the amount of energy needed to heat the body by 1 ° C. When the body is said, it refers to any object in any aggregate state. The energy required for the body to warm up by 1 ° C is expressed in joules, and is obtained when the specific heat of the body multiplies with the body mass and with the change of temperature:

Q = m·c·ΔT

Q - heat capacity (J),

m - mass of the body (g),

c - specific heat of the body (J/g-°C),

ΔT - change in temperature (°C)

Answer:

a)  The elevator was  31.64 m high up when the bolt came loose.

b)  Speed of the bolt when it hits the bottom of the shaft = 25.41 m/s

Explanation:

a) Considering motion of bolt:-

Initial velocity, u =  5 m/s

Acceleration , a = -9.81 m/s²

Time = 3.1 s

We have equation of motion s= ut + 0.5 at²

Substituting

   s= 5 x 3.1 - 0.5 x 9.81 x 3.1²

    s = 0 x t + 0.5 x 9.81 x t²

    s = -31.64 m

The elevator was  31.64 m high up when the bolt came loose.

b) We have equation of motion v = u + at

  Initial velocity, u =  5 m/s

 Acceleration , a = -9.81 m/s²

 Time = 3.1 s  

Substituting

  v = u + at

  v  = 5 - 9.81 x 3.1 = -25.41 m/s

Speed of the bolt when it hits the bottom of the shaft = 25.41 m/s

Answer:

It must be moved by 2.59 m to the right

Explanation:

To keep the plank in uniform state, the moment at sawhorse = 0

Let y be the distance of saw horse from left of plank.

Weight per unit length of plank

Taking moment about saw horse

Moment due to left portion,

         182 x y + 12.375 x y x 0.5 y = 182 y + 6.1875 y²

Moment due to right portion,

         12.375 x (8-y) x 0.5 (8-y) = 396 + 6.1875 y² - 99y

So to keep balance these moments should be same

         182 y + 6.1875 y² = 396 + 6.1875 y² - 99y

         281 y = 396

                y = 1.41 m

Distance moved to right = 0.5 x 8 - 1.41 = 2.59 m

So it must be moved by 2.59 m to the right

Answer:

option (B)

Explanation:

q = 3 c, m = 4 x 10^-3 kg, g  9.8 m/s^2,

In the equilibrium condition, the weight of the charge particle is balanced by the electrostatic force.

q E = mg

Electrostatic force = m g = 4 x 10^-3 x 9.8 = 0.0392 N

Answer:

175  

Explanation:

v = speedometer reading of a european sportscar =

we know that,

1 km = 0.621 miles

So the speedometer reading of a european sportscar in  mi/h is given as

v = =

v = (282 x 0.621)

v = 175  

Answer:

A shin splint is a risk associated with exercising on hard surfaces, which causes pain in the front of the lower leg.

Answer: 2

Step-by-step explanation:

Given : The number of granola bars = 6

The number of pieces of dried fruit = 10

If the snack bags should be identical without any food left over, then the greatest number of snack bags Emily can make is the greatest common factor (GCF) of 6 and 10.

Since , factors of 6 = 1, 2, 3, 6

Factors of 10 = 1, 2, 5, 10

Hence, the greatest common factor of 6 and 10 = 2

Thus, the greatest number of snack bags Emily can make = 2.

Answer:

21.26 inches.

Step-by-step explanation:

It can be inferred that the shape of the monitor is a rectangle, in which the length of the monitor is 16 inches and the height of the monitor is 14 inches. The diagonals of the rectangle cut it into two congruent right-angled triangles. Therefore, to find the length of the diagonal of the monitor, use the Pythagoras Theorem. Since the base (b) is 16 inches and the perpendicular (p) is 14 inches, the distance of the hypotenuse (i.e. the diagonal, denoted by h) can be found by the following formula:

Plugging in the values:

Simplifying gives:

Taking square root on both sides gives:

h = 21.26 inches (to the nearest 2 decimal places)

Therefore, the measure of the diagonal is 21.26 inches!!!

Answer:

• C₅H₉N₃

Explanation:

First, you need to find the empirical formula of the compound (histamine).

To find the empirical formula convert all the data given in mass units (miligrams) into mole numbers.

You do that by using the formula: number of moles = mass in grams / atomic mass.

To find the mass in grams divide the mass in miligrams by 1,000.

Build a table:

Element    mass (g)   atomic mass (g/mol)    number of moles (mol)

C                0.208           12.011                        0.0173

H                0.031            1.008                        0.0307

N                0.146           14.007                       0.0104

Now, find the ratio C:H:N, for which you divide every number of moles by the smallest number of moles: 0.0104:

• C: 0.0173 / 0.0104 = 1.665

• H: 0.0307 / 0.0104 = 2.957

• N: 0.0104 / 0.104 = 1.002

You must find a multiple that yields 1.665 to a reasonably close integer.

Muliply every amount by 3:

• C: 1.665(3) = 4.995 ≈ 5

• H: 2.957(3) = 8.871 ≈ 9

• N: 1.002(3) = 3.007 ≈ 3

Hence, the empirical formula is C₅H₉N₃.

Now, find the mass of the empirical formula:

• 5(12.011 g/mol) +  9(1.008 g/mol) + 3(14.007 g/mol) = 111.148 g/mol ≈ 111 g/mol.

Since the mass of the empirical formula is the same of the molecular formula, both formulae are the same.

Therefore, the answer is: C₅H₉N₃ ← molecular formula

Answer:

Answer: ecosystem

Explanation:

An ecosystem is a community of living and non-living components. A coral reef is an aquatic ecosystem which is formed by a continuous walls of calcium carbonates released by living animals they get combine to form rocks. These rocks and walls are collectively called as hard stony corals. These hard stony corals provide shelter to many aquatic animals like fishes. As the water is the chief abiotic factor along with coral walls and rocks which help in the survival of living organisms therefore, ecosystem is the largest organizational level found in one coral reef.

Hope This Helps!

Answer:429

Step-by-step explanation: let the total number of students in the elementary school be X

X - X/13 = 396

12X/13=396

X=396/*13/12

X=5148/12

X=429

Answer:

1.Million of tons of trash floats in our oceans.

2. There ARE all kinds of items, including fishing nets and bottles.

3. Currents in the oceans CARRY this debris so that it collects in big areas known as garbage patches.

4. These areas of garbage HAVE  been increasing in size since plastic first became commonly used sixty years ago.

5. Anything made  of plastic is very durable and buoyant, so it will float in the oceanS for many years.

6. Why ARE garbage patches such a problem?

7. For one reason, birds, as well as fish,MISUNDERSTAND  the plastic for food and die after trying to eat it.

8. In addition, if people eat these fishES, then they are risking their health. 9. Until everyone stops creating so much trash, there IS not a solution to this problem

Answer:

Step-by-step explanation:

Equation of ellipse is of form where are the x-intercepts and are the y-intercepts . If then it is a horizontal ellipse and if then it is a vertical ellipse .

For horizontal axis ,

Here, are known as the vertices of ellipse and are the co-vertices of ellipse .

Horizontal axis is known as the major axis and vertical axis is known as the minor axis .

Here, x-intercepts are , take a = 5

y-intercepts are , take b = 3

As , it is a horizontal ellipse .

On putting a = 5 and b = 3 , we get equation as

Answer:

the required answer is 3...

Answer:

nopolion steals farms plans

Explanation:

i read the book

Answer:

Lauren's Problem

Step-by-step explanation:

She fell the appropriate number of times each day for the 5 days. She fell 9 times the first day, like the equation has in parenthesis. She did it for 5 days. 5x9 is pretty much given to you. Hope this helps. :)