Which expression is equivalent to 3\dfrac78 - 6\dfrac143 8 7 ​ −6 4 1 ​ 3, start fraction, 7, divided by, 8, end fraction, minus, 6, start fraction, 1, divided by, 4, end fraction? Choose 1 answer: Choose 1 answer: (Choice A) A 3\dfrac78+\left(-6\dfrac14\right)3 8 7 ​ +(−6 4 1 ​ )3, start fraction, 7, divided by, 8, end fraction, plus, left parenthesis, minus, 6, start fraction, 1, divided by, 4, end fraction, right parenthesis (Choice B) B -6\dfrac14+\left(-3\dfrac78\right)−6 4 1 ​ +(−3 8 7 ​ )minus, 6, start fraction, 1, divided by, 4, end fraction, plus, left parenthesis, minus, 3, start fraction, 7, divided by, 8, end fraction, right parenthesis (Choice C) C 6\dfrac14-\left(3\dfrac78\right)6 4 1 ​ −(3 8 7 ​ )6, start fraction, 1, divided by, 4, end fraction, minus, left parenthesis, 3, start fraction, 7, divided by, 8, end fraction, right parenthesis (Choice D) D 3\dfrac78+\left(6\dfrac14\right)3 8 7 ​ +(6 4 1 ​ )

Answer:

r= 0.87

Step-by-step explanation:

It has the strongest correlation, which means it is closest to the line.

Answer:

Primary source

Step-by-step explanation:

This is because it says "your" house, it means that you are the one looking and counting at the number of cars.

If this was not said "your", there is a higher chance that it is a secondary source, but in this case, it is a primary source.

Its Primary source

HOPE IT HELPS

Answer:

no solution

Step-by-step explanation:

Left and right sides are equal so no solution

Answer:No solution

Step-by-step explanation: I got it right on the test :)

Answer:

[tex]Goat = 2080IU[/tex]

Step-by-step explanation:

Given

Ratio = 3 : 4

Litre of cow = 1560IU

Required

IU of a litre of goat

The ratio represents ratio of cow milk to goat milk

In other words;

[tex]Cow:Goat = 3 : 4[/tex]

To calculate the number of IU in a litre of goat milk; we substitute Cow with 1650 in the above expression

[tex]Cow:Goat = 3 : 4[/tex]

[tex]1560:Goat = 3 : 4[/tex]

Convert  to fraction

[tex]\frac{1560}{Goat} = \frac{3}{4}[/tex]

Multiply both sides by 4

[tex]4 * \frac{1560}{Goat} = \frac{3}{4} * 4[/tex]

[tex]\frac{4 * 1560}{Goat} = \frac{ 4 * 3}{4}[/tex]

[tex]\frac{6240}{Goat} = 3[/tex]

Multiply both sides by Goat

[tex]Goat * \frac{6240}{Goat} = 3 * Goat[/tex]

[tex]6240 = 3 * Goat[/tex]

Divide both sides by 3

[tex]\frac{6240}{3} = \frac{3 * Goat}{3}[/tex]

[tex]\frac{6240}{3} = \frac{3 * Goat}{3}[/tex]

[tex]2080 = Goat[/tex]

[tex]Goat = 2080[/tex]

Answer:

1463 : 5080

Step-by-step explanation:

There are 1463 cherry-flavored jelly beans.

There are 5080 non cherry-flavored jelly beans.

The ratio of cherry-flavored jelly beans to non-flavored jelly beans is:

1463 : 5080

Answer:

D. [tex]\sqrt{8}[/tex]

Step-by-step explanation:

We want to find the distance between (-6, 4) and (-8, 6).

First, we find the difference:

d = (-8 - (-6), 6 - 4)

d = (-8 + 6, 2)

d = (-2, 2)

We now find the magnitude:

[tex]|d| = \sqrt{x^2 + y^2}[/tex]

where x = x coordinate, y = y coordinate

[tex]|d| = \sqrt{(-2)^2 + (2)^2} \\\\|d| = \sqrt{4 + 4} = \sqrt{8}[/tex]

The answer is Choice D.

Answer:

D

Step-by-step explanation:

Khan said it was correct :)

Answer:

3.38/6.21=54.428% (0.54428)

Step-by-step explanation:

biocapacity of grazing land of 0.85 ha/person+biocapacity of forest land of 2.53 ha/person

2.53+0.85=3.38

the percentage of biocapacity from grazing and forest land

3.38/6.21=54.428% (0.54428)

Answer: The area is 24 square units.

Step-by-step explanation:

Things you need to use in this exercise:

Area of a circle = pi*r^2

r is the radius, equal to half the diameter.

Ok, in the image we can see 3 half-circles.

one has a diameter of 8 units: with area A (the left one)

other has a diameter of 6 units: with area B (the bottom one)

and the other has a diameter equal to the hypotenuse of the right triangle: with area C (the white semicircle that also includes the right triangle)

Now, you can think the shaded area as:

The sum of the areas of the half circles A and B, minus the area of the half-circle C, plus the area of the right triangle (because the white triangle is also included in the white semicircle)

So the area is:

A + B - C + area triangle

A = pi*(8/2)^2 = 3.14*4^2 = 50.24

B = pi*(6/2)^2 = 3.14*3^2 = 28.26

the area of the triangle is equal to:

T = 6*8/2 = 24

Now, to obtain the area of the white semicircle ( C) we need the hypotenuse of the triangle, so here we can use the Pythagorean's theorem:

H^2 = 8^2 +6^2

H = √(8^2 + 6^2) = 10

Then:

C = pi*(10/2)^2 = 3.14*5^2 = 78.5

Then the shaded area is:

Area = 50.24 + 28.26 + 24 - 78.5 = 24

Answer:

the 95th percentile for the sum of the rounding errors is 21.236

Step-by-step explanation:

Let consider X to be the rounding errors

Then; [tex]X \sim U (a,b)[/tex]

where;

a = -0.5 and b = 0.5

Also;

Since The error on each loss is independently and uniformly distributed

Then;

[tex]\sum X _1 \sim N ( n \mu , n \sigma^2)[/tex]

where;

n = 2000

Mean [tex]\mu = \dfrac{a+b}{2}[/tex]

[tex]\mu = \dfrac{-0.5+0.5}{2}[/tex]

[tex]\mu =0[/tex]

[tex]\sigma^2 = \dfrac{(b-a)^2}{12}[/tex]

[tex]\sigma^2 = \dfrac{(0.5-(-0.5))^2}{12}[/tex]

[tex]\sigma^2 = \dfrac{(0.5+0.5)^2}{12}[/tex]

[tex]\sigma^2 = \dfrac{(1.0)^2}{12}[/tex]

[tex]\sigma^2 = \dfrac{1}{12}[/tex]

Recall:

[tex]\sum X _1 \sim N ( n \mu , n \sigma^2)[/tex]

[tex]n\mu = 2000 \times 0 = 0[/tex]

[tex]n \sigma^2 = 2000 \times \dfrac{1}{12} = \dfrac{2000}{12}[/tex]

For 95th percentile or below

[tex]P(\overline X < 95}) = P(\dfrac{\overline X - \mu }{\sqrt{{n \sigma^2}}}< \dfrac{P_{95}- 0 } {\sqrt{\dfrac{2000}{12}}}) =0.95[/tex]

[tex]P(Z< \dfrac{P_{95} } {\sqrt{\dfrac{2000}{12}}}) = 0.95[/tex]

[tex]P(Z< \dfrac{P_{95}\sqrt{12} } {\sqrt{{2000}}}) = 0.95[/tex]

[tex]\dfrac{P_{95}\sqrt{12} } {\sqrt{{2000}}} =1- 0.95[/tex]

[tex]\dfrac{P_{95}\sqrt{12} } {\sqrt{{2000}}} = 0.05[/tex]

From Normal table; Z >   1.645 = 0.05

[tex]\dfrac{P_{95}\sqrt{12} } {\sqrt{{2000}}} =1.645[/tex]

[tex]{P_{95}\sqrt{12} } = 1.645 \times {\sqrt{{2000}}}[/tex]

[tex]{P_{95} = \dfrac{1.645 \times {\sqrt{{2000}}} }{\sqrt{12} } }[/tex]

[tex]\mathbf{P_{95} = 21.236}[/tex]

the 95th percentile for the sum of the rounding errors is 21.236

Answer:

the line of g(x) is steeper and has lower y intercept

Step-by-step explanation:

f(x)=1/4x-1

g(x)=1/2x-2

g(x) is steeper because the slope of gx is greater than f(x)

y intercept of gx=-2 and for f(x)=-1

the y intercept of g(x) is lower than the y intercept of f(x)

The steepness of a function is dependent on its slope.

The true statement is: (c) the line of g(x) is steeper and has lower y intercept

The equations are given as:

[tex]\mathbf{f(x)= \frac 14x-1}[/tex]

[tex]\mathbf{g(x)=\frac12x - 2}[/tex]

A linear function is represented as:

[tex]\mathbf{y = mx + b}[/tex]

Where:

For f(x)

[tex]\mathbf{m_1 = \frac{1}4}\\\mathbf{b = -1}[/tex]

For g(x)

[tex]\mathbf{m_1 = \frac{1}2}\\\mathbf{b = -2}[/tex]

By comparison:

This means that: the line of g(x) is steeper and has lower y intercept

Hence, the true option is: (c)

Read more about steep and intercepts at:

https://brainly.com/question/3309622

Answer:

2√6

Step-by-step explanation:

x + y = 6

xy = 3

Square the first equation.

x² + 2xy + y² = 36

Subtract 4xy from both sides.

x² − 2xy + y² = 36 − 4xy

Factor.

(x − y)² = 36 − 4xy

Substitute.

(x − y)² = 36 − 4(3)

(x − y)² = 24

Take square root.

x − y = ±√24

x − y = ±2√6

Take absolute value.

|x − y| = 2√6

Answer:

The mean salary for the 50 employees of the new company = $87

Step-by-step explanation:

Mean for any n set of number is \

mean = sum of n terms/ n

_________________________________

For company A

The mean salary for the 20 workers in company A is $90 per week,

mean = $90

n = 20

using above formula

90 = sum of salary of 20 workers/20

sum of salary of 20 workers = 90*20 = $1800

__________________________________________________

For company B

The mean salary for the 30 workers in company A is $85 per week,

mean = $85

n = 30

using above formula

85 = sum of salary of 30 workers/30

sum of salary of 30 workers = 85*30  = $2,550

____________________________________________

If two companies merge

Total salary for all the 50 workers for both the company =

sum of salary of 20 workers in company A + sum of salary of 30 workers in company B = $1800 + $2550 = $4350

Mean salary of 50 workers will be

n= 50

mean = Total salary of 50 workers/50

mean salary of 50 workers = 4350/50 = 87

The mean salary for the 50 employees of the new company = $87

the volume of the cylinder is d)168 units

Answer:

First one: true        Second one: true

Step-by-step explanation:

First Question: the lines will be parellel even though the shape grows or gets smaller

Second Question: the angle will stay the same even if it grows into a larger or smaller shape.

The attached picture was omitted from the question.

Answer:

C = 41.88 feet

a = 33.1°

b = 56.9°

Step-by-step explanation:

From the diagram, we have a right angle triangle.

C = hypotenuse

C = sqrt(35^2 + 23^2)

C = sqrt(1225 + 529)

C = sqrt(1754)

C = 41.88 feet

The connecting Angles:

Angle 'a'

Using tan = opposite / Adjacent

Tan a = 23 / 35

tan a = 0.6571428

a = tan^-1 (0.6571428)

a = 33.1°

Angle 'b' :

Sum of angles in a triangle = 180

a + b + 90 = 180

33.1 + b + 90 = 180

b + 123.1 = 180

b = 180 - 123.1

b = 56.9°

Answer:

Hello there!

~~~~~~~~~~~~~~~~~~~~~~`

Convert the fraction to a decimal by dividing the numerator by the denominator.

[tex]109 / 50 = 2.18[/tex]

Hope this helped you. Brainliest would be nice!

Answer:

(A)CPCTC

Step-by-step explanation:

Issa knows that ΔRED ≅ ΔTAN by the SSS theorem.

If two triangles are congruent, their corresponding parts will always be congruent. In fact, their corresponding angles will be equal.

Therefore, Issa concluded that ∠R ≅ ∠T by the fact that Corresponding Parts of Congruent Triangles are Congruent (CPCTC).

The correct option is A.

Similarly, we can also conclude that:

Answer:

840 cm³

Step-by-step explanation:

To find it's volume , let's just divide the whole prism into two rectangular prisms.

Rectangular Prism 1:

Volume = [tex]Length * Width * Height[/tex]

Volume = 8 * 15 * 6

Volume = 720 cm³

Rectangular Prism 2:

Volume = [tex]Length * Width * Height[/tex]

Volume = 5 * 4 * 6

Volume = 120 cm³

Whole Prism:

Volume = 720+120

=> 840 cm³

Answer:

840 cm^3

Hope this helps :)

Answer:

work is shown and pictured

Answer:

x =- 3 and y = -7

Step-by-step explanation:

2X-2Y=-8

X=2y + 11

We need to isolate both X and Y in both equations

so

2x-2y=-8

(add 2y to both sides)

2x=-8+ 2y

(divide both sides by 2)

x=-4+y and x=2y+11

because both of these equations are the same we can put them together

4+y=2y+11

(subtract y)

4=y+11

(subtract 11)

-7=y

so y = -7

then to find x you just need to plug in y to one of the equations

x=2(-7) + 11

x= -14 +11

x = -3

Answer:

x = - 19, y = - 15

Step-by-step explanation:

Given the 2 equations

2x - 2y = - 8 → (1)

x = 2y + 11 → (2)

Substitute x = 2y + 11 into (1)

2(2y + 11) - 2y = - 8 ← distribute and simplify left side

4y + 22 - 2y = - 8

2y + 22 = - 8 ( subtract 22 from both sides )

2y = - 30 ( divide both sides by 2 )

y = - 15

Substitute y = - 15 into (2) for corresponding value of x

x = 2(- 15) + 11 = - 30 + 11 = - 19

Solution is x = - 19, y = - 15

Answer:

Step-by-step explanation:

measure of angles of a circle=360

angle ACB=360-82=278 degrees

Answer:

5n = 1.75

Step-by-step explanation:

The 2 bars are equal thus lower equals upper, that is

5n = 1.75

Answer:

Volume of a sphere = 4/3πr³

π = 3.14

r = radius which is 3in

Volume = 4/3 × 3.14 × 3²

= 37.68

= 38 cubic inches to the nearest hundredth

Hope this helps

Answer:

38 cubic inches

Step-by-step explanation:

Answer:

b=3.1 cm

Step-by-step explanation:

Both of the longer sides will be equal so you can set up the equation (6.3+6.3)+b=15.7. Simplified you get 12.6+b=15.7, subtracting 12.6 from both sides you get that b=3.1 cm. This can be checked because it is also shorter than 6.3 and works correctly in the perimeter.

Answer:

Step-by-step explanation:

1050 flowers

3/10 of them are red=> 3/10 *1050=3*105=315 red flowers

2/5, (or 4/10),  are white =>4/10 * 1050=4*105=420 white flowers

=> 1050-(315+420)=1050-735=315 yellow flowers​

Answer:

Height = 3cm

Volume = 50.27cm^3

Step-by-step explanation:

Well to solve for the height with slant height and radius we can use the Pythagorean Theorem,

Which is [tex]a^2 + b^2 = c^2[/tex].

So we have c and a, so we have to fill those in.

(4)^2 + b^2 = (5)^2

16 + b^2 = 25

-16

b^2 = 9

[tex]\sqrt{b} \sqrt{9}[/tex]

b = 3cm

So to find the volume of a cone we use the following formula [tex]\pi r^2 \frac{h}{3}[/tex].

So we have the radius and height so we just fill those in.

(pi)(4)^2(3)/3

(pi)16(1)

pi*16

About 50.27cm^3

Answer:

Coordinates of point P is [tex](-14,3)[/tex].

Step-by-step explanation:

Given that mid point of line segment [tex]\overline {PQ}[/tex] is at M(-9, 8.5).

Q is at (-4, 14).

Let coordinate of P be [tex](x,y)[/tex].

Using the ratio, we can say the following:

The coordinates of mid point [tex](X,Y)[/tex] of a line with endpoints [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] is given as:

[tex]X=\dfrac{(x_1+ x_2)}{2}[/tex]

[tex]Y=\dfrac{(y_1+ y_2)}{2}[/tex]

Using the formula for above given dimensions:

[tex]-9 =\dfrac{x+(-4)}{2}\\\Rightarrow x = -18+4 = -14[/tex]

[tex]8.5=\dfrac{(14+ y)}{2}\\\Rightarrow y = 17-14 =3[/tex]

So, the coordinates of point P are [tex](-14,3)[/tex].

Answer:

"Correct"

Triangles: Have three (3) sides

Quadriliaterals: QUAD being the key word means four (4)

"Incorrect"

Pentagons: Have five (5) sides

Hexagons: Have six (6) sides; key word being HEX

Heptagons: 7 sides (7)

Step-by-step explanation:

Answer:

solution,

Draw a line RM parallel to line PQ and ST .And the line RM divides the angle W in two part .i.e x° and y°

<w=X+y

If RM is parallel to ST then,

<MRT=<SRT (being alternate angles)

<X=34°

If RM is parallel to PQ then,

<PQR=<MQR( being alternate angles)

52°=y

y=52°

now,

w=X+y

=34° +52°

=86°

Hope this helps...

Good luck on your assignment..