Please help me please

the second option I highly think this is correct but I'm so sorry if not!!! I even did research to see if I was right

Answer:

58

Step-by-step explanation:

i think the answer is 58 please give brainliest

Answer:

(a) 18.5ft

(b) 388.5 ft²

Step-by-step explanation:

(a)

She has 79ft of fence = the perimeter will be 79.

Perimeter of a rectangle = 2(length) +2(width)

79 = 2(21)+2(width)

2(width) = 79 - 42

width = 37/2

width = 18.5ft

(b)

Area of a rectangle = (length)(width) = (21)(18.5) = 388.5 ft²

Answer:

36

Step-by-step explanation:

radius-18

diameter = r×2

=18×2=36

hope it will help u

always remember the formula for the diameter and radius so just incase

diameter= x

radius=x÷2

Answer:

Step-by-step explanation:

What is the diameter of  a circle with a radius 18?

d=36

Solution

d=2r=2·18=36

What is the diameter of a circle with the circumference of 18?

d≈5.73

Using the formulas

C=2πr

d=2r

Solving ford

d=C/ π=18/ π≈5.72958

Answer: A

Step-by-step explanation:

The moon's gravity pulls water away from Earth, causing high tide on the side of Earth facing the moon.

Answer:

$8,835

Step-by-step explanation:

Multiply the total ($20,615) by 3/7 to get your answer.

Answer:

if Marcia uses 9 parts water, that mean she will have to use 3 parts syrup

Step-by-step explanation:

this is ratios,

so to find out how many syrup she needs, you need to see how much she used water from the original recipe

so:

9 ÷ 3 = 3

so she multiplied three to get to nine, so we have to do the same to the syrup

_ ÷ 1 = 3

or:

3 × 1 = 3

so the answer is 3

Answer:

Sorry if its wrong

Step-by-step explanation: Here's my answer

YMCA

YMAC

YCAM

YACM

ACMY

CAMY

MACY

MCAY

Have a nice day ^-^

Answer:

a.1,500 miles apart b.1.5 centermeters

Step-by-step explanation:

give me brainleist thank and 5 star!

a) The distance between the two cities is 1500 miles

b) The distance between the two national parks on the map is 4.5 cm

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

The scale on the map is

3 cm : 500 miles

a)

Let the distance between the 2 cities be = A

Now , the equation is

When the distance between the 2 cities is 500 miles , the scale on the map is 3 cm

So ,

3 cm = 500 miles

9 cm = 3 x 3 cm

9 cm = 500 x 3 miles

        = 1500 miles

Therefore , the distance between the two cities is 1500 miles

b)

The distance between the two national park is 750 miles

Now , the equation is

When the distance between the 2 cities is 500 miles , the scale on the map is 3 cm

So ,

500 miles = 3 cm

1 mile = 3 / 500 cm

750 miles = ( 3 x 750 ) / 500 cm

750 miles = 3 x 1.5 cm

                 = 4.5 cm

Therefore ,

The distance between the two national parks on the map is 4.5 cm

Hence , a) The distance between the two cities is 1500 miles

b) The distance between the two national parks on the map is 4.5 cm

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9514 1404 393

Answer:

  x = 135

Step-by-step explanation:

The sum of the differences from the mean of the known numbers is

  -15 +8 -7 +0 -7 = -21

The value of x must have a difference from the mean that is the opposite of this sum. (That is, the total of differences from the mean of all the numbers must be zero.)

  x = 114 +21

  x = 135

Answer:

33 + (11-1) + (3-1)2 + (1-1)3 = 47

Div with 100 indiv power of 3 and adding

3 = 33

9 = 11

27 = 3

81= 1

total = 48

Answer:

8. [tex]\frac{8r^{2} }{q^{2} }[/tex]

10. [tex]12x^{-1} y^{6} z[/tex]

Step-by-step explanation:

8. [tex]\frac{16p^{6}qr^{8} }{2(p^{2}qr^{2})^{3} }[/tex] = [tex]\frac{16p^{6}qr^{8} }{2p^{6}q^{3}r^{6} }[/tex]= [tex]\frac{8r^{2} }{q^{2} }[/tex]

10. [tex]4x^{2} y[/tex] . 3 [tex](-2x^{4} y)^{0}[/tex] . [tex]x^{-3} y^{5} z[/tex] = [tex]4x^{2}y[/tex] . [tex]3(1)[/tex] . [tex]\\x^{-3} y^{5}z[/tex] = [tex]\\12x^{-1}yx^{6}z[/tex]

Answer:

78,160

Step-by-step explanation:

Answer:

That would be 78,160

Step-by-step  explanation:

Options :

Yes, 68.25 is near the top of the confidence interval.

Yes, the value of 68.25 is a number in the confidence interval.

Yes, 68.25 is much higher than the sample mean of all three-year-old thoroughbred racehorses, which was 65.2 inches.

No, the value of 68.25 is a number in the confidence interval.

No, the horses that run in the Kentucky Derby are a subset of all three-year-old thoroughbred racehorses

Answer:

No , the value of 68.25 is a number in the confidence interval.

Step-by-step explanation:

The confidence interval gives a range if values which is used in establishing the significance of an hypothesis. If the true mean falls within the confidence interval drawn, then our finding is insignificant and the null hypothesis will stand. However, if the true mean does not fall within the interval, then our result is considered significant and the null is thus rejected.

Since true mean exists within the confidence interval, then we conclude that the sample does not provide convincing evidence that three-year-old thoroughbred racehorses are, on average, shorter than those that run in the Kentucky Derby

Answer:

Step-by-step explanation:4.4

Answer:

Let x=numerator,

y=denominator.

y=x+7 - - - - - (i)

(x+3)/(y+3) = 2/3

(Cross multiply)

3(x+3)=2(y+3)

3x+9=2y+6

(subtract 9 from both sides)

3x+9–9=2y+6–9

3x=2y+6–9

3x=2y-3 - - - - - - - (ii)

(substitute the value of equation (i) into (ii))

3x=2(x+7)-3

3x=2x+14–3

3x=2x+11

(subtract 2x from both sides)

3x-2x=2x+11–2x

x=11.

(substitute the value of x into equation (i))

y=7+11

y=18.

so numerator =11,

numerator =11,denominator = 18.

So original fraction is 11/18.

3/11th of original fraction is

= 11/18 x 3/11

= (11x3)/(18x11)

= 3/18

=1/6.

Answer = 1/6.

Answer:

Step-by-step explanation:

let numerator be x and denominerator be y

according to the question equation is

1+x /7+x+6=1/2( do cross multiplication)

7+x+6=2(1+x)

13+x=2+2x

13-2=2x-x

11=x

numerator =x+1=11+1=12

therefore numerator is 12

for denominerator

substitute the value of x in (7+x+6)

=7+11+6

24

Answer:

C I got that

shdjdhfbfhfkdnfhfhfhfbf it wants me to do 20 characters long

Answer:

The awnswer is b c and e

Step-by-step explanation:

I submmited it and got it right hope this helps :D

The shapes which have all the properties shown are C. Rectangle and E. Square.

Isosceles triangles are defined as the triangles for which two sides or two angles are equal to each other.

Given properties are,

At least 2 sides of equal length

2 pairs of parallel sides

At least 2 right angles

Since the property includes that 2 pairs of parallel sides, it must contain 4 sides in total.

So triangle can't be a possible shape.

Parallelogram can't also be possible since there are no right angles.

Only right trapezoids are possible since the other ones will not have al least two right angles.

Rectangle and square are possible.

Hence the correct shapes are Rectangle and Square.

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Answer:

r = 10 ft

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Equality Properties

Geometry

Volume of a Cylinder Formula: V = πr²h

Step-by-step explanation:

Step 1: Define

Identify variables

Volume V = 2000π ft³

Height h = 20 ft

Radius r = unknown

Step 2: Solve for r

Answer:10 ft

Step-by-step explanation:

Answer:

a) All girls - 12C8 /20 C8

b) All boys - 8C8/20C8

c) 4 girls and 4 boys - 8C4 * 12C4/20 C8

d) 3 girls and 5 boys - 8C5 * 12C3/20 C8

e) At least one boy - 1 - 12C8 /20 C8

f) At least two girls 1 - (1 - 8C8 /20 C8)

Step-by-step explanation:

Given -

Total girls - 12

Total boys - 8

a) All girls - 12C8 /20 C8

b) All boys - 8C8/20C8

c) 4 girls and 4 boys - 8C4 * 12C4/20 C8

d) 3 girls and 5 boys - 8C5 * 12C3/20 C8

e) At least one boy - 1 - 12C8 /20 C8

f) At least two girls 1 - (1 - 8C8 /20 C8)

Answer:

68 square unites

Step-by-step explanation:

Draw a live from (-8,2) to (0,2) and up to (0,4).  This divides it into three shapes.

Big triangle = 0.5x8x12=48

Little triangle = 0.5x2x4=4

Rectangle = 8x2=16

48+4+16=68

Answer:

7

Step-by-step explanation:

Answer:

D 23, 36, 25, 38, 30

Step-by-step explanation:

Mean of a data-set:

The mean of a data-set is the sum of all it's values divided by the number of values.

Median of a data-set:

The median of a data-set is the value that separates the lower 50% from the upper 50% on the ordered set.

If the cardinality n is odd, as in this case, the median is the element at the position (n+1)/2. Since in this case, n = 5, the median is the 3rd element in the ordered set.

A 13, 42, 17, 26, 38

Ordered set: 13, 17, 26, 38, 42

Median: 26

Mean: (13+17+26+38+42)/5 = 27.2

Difference: 27.2 - 26 = 1.2

B. 28, 7, 36, 8, 17

Ordered set: 7, 8, 17, 28, 36

Median: 17

Mean: (7+8+17+28+36)/5 = 19.2

Difference: 19.2 - 17 = 2.2

C 14, 29, 38, 7, 13

Ordered set: 7, 13, 14, 29, 38

Median: 14

Mean: (7+13+14+29+38)/5 = 20.2

Difference: 20.2 - 14 = 6.2

D 23, 36, 25, 38, 30

Ordered set: 23, 25, 30, 36, 38

Median: 30

Mean: (23+25+30+36+38)/5 = 30.4

Difference: 30.4 - 30 = 0.4

Option d has the smallest difference.

Answer:

Large=6, medium=4

Step-by-step explanation:

Masi help Janya realize, that the Janya's family has a long tradition of protecting nature. Option D is the correct option.

Passage reading is to read a passage carefully to learn about a topic as well as enhance the vocabulary. Some question related to the passage is asked in passage reading.

Summary of the given paragraph,

Thus, Masi help Janya realize, that the Janya's family has a long tradition of protecting nature. Option D is the correct option.

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Answer:

A solar eclipse occurs when the moon gets between Earth and the sun, and the moon casts a shadow over Earth. A solar eclipse can only take place at the phase of new moon, when the moon passes directly between the sun and Earth and its shadows fall upon Earth's surface

Step-by-step explanation:

[tex]range = (3,7,1) - (9,6,7) \\ = ( - 6,1, - 6) \\ distance = \sqrt{ {x}^{2} + {y}^{2} + {z}^{2} } \\ = \sqrt{ {( - 6)}^{2} + {1}^{2} + {( - 6)}^{2} } \\ = \sqrt{73} \\ = 8.5 \: units[/tex]

The distance between points (3,7,1) and (9,6,7) is 8.54 units and the midpoint of the segment is (6, 6.5, 4).

The length along a line or line segment between two points on the line or line segment.

Distance=√(x₂-x₁)²+(y₂-y₁)²

We need to find the distance between points (3,7,1) and (9,6,7).

Distance=√(9-3)²+(6-7)²+(7-1)²

=√6²+(-1)²+(6)²

=√36+1+36

=√73

=8.54 units

So the distance between the two points is approximately 8.5 units.

To find the midpoint of the segment between the two points, we use the midpoint formula:

midpoint = ((x₁+x₂)/2, (y₁+y₂)/2, (z₁+z₂)/2)

Using the given points, we have:

midpoint = ((3+9)/2, (7+6)/2, (1+7)/2)

= (6, 6.5, 4)

So the midpoint of the segment is (6, 6.5, 4).

Hence,  the distance between points (3,7,1) and (9,6,7) is 8.54 units and the midpoint of the segment is (6, 6.5, 4).

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