# Find the value of L. Perimeter = 22. Width is 3. So what is L? On a rectangular

QUESTION POSTED AT 05/12/2019 - 05:53 PM

QUESTION POSTED AT 05/12/2019 - 05:53 PM

Perimeter of rectangle =2 X( L + w)

width=3

perimeter=22

length =?

2(L+3) =22

=>2L+6 =22

=>2L = 22-6

=>2L =16

=>L = 16/2

=>L=8 ..

Hope it helps !!!

width=3

perimeter=22

length =?

2(L+3) =22

=>2L+6 =22

=>2L = 22-6

=>2L =16

=>L = 16/2

=>L=8 ..

Hope it helps !!!

For this question the answer is 2.5m (B)

You find this by: L=0.85m

W=0.4m

A rectangle had 4 sides (2 lengths and 2 widths)

So...

To find 1 length and 1 Width you do 0.85+0.4=1.25m

Now you want to find the other 2 sides (L and W)

You can do: the same method and add it to 1.25m OR...

You can do (I prefer this one): (0.85+0.4)x2=?

This is the same as 0.85+0.4=1.25

1.25x2=2.5m

You find this by: L=0.85m

W=0.4m

A rectangle had 4 sides (2 lengths and 2 widths)

So...

To find 1 length and 1 Width you do 0.85+0.4=1.25m

Now you want to find the other 2 sides (L and W)

You can do: the same method and add it to 1.25m OR...

You can do (I prefer this one): (0.85+0.4)x2=?

This is the same as 0.85+0.4=1.25

1.25x2=2.5m

ANSWERED AT 18/01/2020 - 07:41 AM

QUESTION POSTED AT 18/01/2020 - 07:41 AM

The period of this function ( cos (bx) ):

T =

b=

Maximum tide : 9 feet (for cos value 1) f(t)=4*1 + 5 = 9

Minimum tide: 1 feet ( for cos value -1) f(t) = 4*(-1) + 5 =1

Answer: D)**f(t)= 4 cos (π/6 t) +5**

T =

b=

Maximum tide : 9 feet (for cos value 1) f(t)=4*1 + 5 = 9

Minimum tide: 1 feet ( for cos value -1) f(t) = 4*(-1) + 5 =1

Answer: D)

ANSWERED AT 18/01/2020 - 07:40 AM

QUESTION POSTED AT 18/01/2020 - 07:40 AM

The general form for a hyperbola with the center at the origin and a vertical transverse axis is:

y2/a2 - x2/b2 = 1

From the given:

a = 12

To get b, we use the given distance between the foci.Since it's 26,

c = 26/2 = 13

Using this defintion:

c2 = a2 + b2

b = sqrt(c2 - a2) = sqrt (13^2 - 12^2) = 5

The equation therefore is:

y2/13^2 - x2/5^2 = 1

or

y2/169 - x2/25 = 1

y2/a2 - x2/b2 = 1

From the given:

a = 12

To get b, we use the given distance between the foci.Since it's 26,

c = 26/2 = 13

Using this defintion:

c2 = a2 + b2

b = sqrt(c2 - a2) = sqrt (13^2 - 12^2) = 5

The equation therefore is:

y2/13^2 - x2/5^2 = 1

or

y2/169 - x2/25 = 1

ANSWERED AT 18/01/2020 - 07:36 AM

QUESTION POSTED AT 18/01/2020 - 07:36 AM

Assuming that this is just on a 2-D coordinate plane, we must convert the expressions on to a 3-D plane since translation cannot be done on a 2-D plane. This is done by adding a dummy coordinate that does not change. Let us use "1" for this case.

Matrix:

| 0 0 -2 |(x) = (x - 2)

| 0 0 4 |(y) = (y + 4)

| 0 0 1 |(1) = 1

Matrix:

| 0 0 -2 |(x) = (x - 2)

| 0 0 4 |(y) = (y + 4)

| 0 0 1 |(1) = 1

ANSWERED AT 18/01/2020 - 07:35 AM

QUESTION POSTED AT 18/01/2020 - 07:35 AM

It would b 2/3 and the other one 2/4

ANSWERED AT 18/01/2020 - 07:23 AM

QUESTION POSTED AT 18/01/2020 - 07:23 AM

22 - (7 + 9) = 6 feet

ANSWERED AT 18/01/2020 - 07:18 AM

QUESTION POSTED AT 18/01/2020 - 07:18 AM

The perimeter is 78ft. You do 12 times 2 plus 22 time 2 because a rectangle has 2 sets of equal sides.

ANSWERED AT 18/01/2020 - 07:18 AM

QUESTION POSTED AT 18/01/2020 - 07:18 AM

The surface area of a rectangular prism is this:

SA = LW + LH + LH

Here are the changes:

L --> (2/3)L

W --> 4W

H --> H/2

So, the new surface area is:

SA' = (2/3)L (4W) + (2/3)L (H/2) + 4W (H/2)

SA' = (8/3) LW + (1/3) LH + 2 WH

SA = LW + LH + LH

Here are the changes:

L --> (2/3)L

W --> 4W

H --> H/2

So, the new surface area is:

SA' = (2/3)L (4W) + (2/3)L (H/2) + 4W (H/2)

SA' = (8/3) LW + (1/3) LH + 2 WH

ANSWERED AT 18/01/2020 - 07:16 AM

QUESTION POSTED AT 18/01/2020 - 07:16 AM

Ok so

for a right triangle with legs legnth a and b, and hypotnuse legnth c

a^2+b^2=c^2

hypotonuse is 13

one leg is 12

other leg is ?

a=12

b=?

c=13

sub and find ?

12^2+?^2=13^2

144+?^2=169

minus 169 both sides

?^2=25

sqrt bot sies

?=5

the legnth is 5 units

for a right triangle with legs legnth a and b, and hypotnuse legnth c

a^2+b^2=c^2

hypotonuse is 13

one leg is 12

other leg is ?

a=12

b=?

c=13

sub and find ?

12^2+?^2=13^2

144+?^2=169

minus 169 both sides

?^2=25

sqrt bot sies

?=5

the legnth is 5 units

ANSWERED AT 18/01/2020 - 07:15 AM

QUESTION POSTED AT 18/01/2020 - 07:15 AM

The answer is -4 hope this helps

ANSWERED AT 18/01/2020 - 07:15 AM

QUESTION POSTED AT 18/01/2020 - 07:15 AM

The basic definition of a perimeter is the boundary line of an object. For shapes and figures, this is basically the sum of the outermost sides that define the object. Since an octagon has eight sides, with each side measuring 12m, the perimeter can be obtained by multiplying 12 m by 8 sides, or in equation form:

P = 8(12)

Among the choices, this is letter B.

P = 8(12)

Among the choices, this is letter B.

ANSWERED AT 18/01/2020 - 07:14 AM

QUESTION POSTED AT 18/01/2020 - 07:14 AM

we will isolate that right triangle marked off with the little angle thing.

We know that, in that right triangle, one of the legs measures 22 ft, and the angle (adjacent) to it, meausres 9.2 degreesIn this case, tan9.2=x/22 where x is that unkown length

cross multiply.

your final answer is equal to x+5.6

We know that, in that right triangle, one of the legs measures 22 ft, and the angle (adjacent) to it, meausres 9.2 degreesIn this case, tan9.2=x/22 where x is that unkown length

cross multiply.

your final answer is equal to x+5.6

ANSWERED AT 18/01/2020 - 07:13 AM

QUESTION POSTED AT 18/01/2020 - 07:13 AM

**Answer:**

**Option (c) 7.6 cm is the correct answer**

**Step-by-step explanation:**

Three sides of a quadrilateral measure 2.5 cm, 1.8 cm, and 9 cm.

Perimeter of the quadrilateral is 29.9 cm

Then we have to find the length of 4th side.

Since perimeter of any quadrilateral = sum of all four sides

so by using this formula

20.9 = 13.3 + x

x = 20.9 - 13.3

x = 7.6 cm

**Option (c) 7.6 cm is the correct answer**

ANSWERED AT 18/01/2020 - 07:13 AM

QUESTION POSTED AT 18/01/2020 - 07:13 AM

-1 over 1 when you divide by 22

ANSWERED AT 18/01/2020 - 07:12 AM

QUESTION POSTED AT 18/01/2020 - 07:12 AM

The height is 12 feet.
The formula for volume for a pyramid is V=1/3Bh.
*the big "b" means you have to find the area of the base=4.
8=1/3×2×h
-- -----------
2 2
(3) 4=1/3×h (3)
12=h

ANSWERED AT 18/01/2020 - 07:11 AM

QUESTION POSTED AT 18/01/2020 - 07:11 AM

(x-7)^2 = (x-7)(x-7) = x^2 -7x -7x +49 = x^2-14x+49

answer is 'x^2+14x+49'

answer is 'x^2+14x+49'

ANSWERED AT 18/01/2020 - 07:10 AM

QUESTION POSTED AT 18/01/2020 - 07:10 AM

C because 23.6 times two is 47.4 and 52.9 times two is 105.8, add those two together to get c

ANSWERED AT 18/01/2020 - 07:04 AM

QUESTION POSTED AT 18/01/2020 - 07:04 AM

**Answer: The required equation of the circle is **

**Step-by-step explanation: **We are **given to find the equation of the circle with center (-2, -5) and radius of length 1 unit.**

We know that

**the standard equation of a circle with center (h, k) and radius of length r units is given by**

**For the given circle, we have**

**center, (h, k) = (-2, -5) and radius, r = 1 units.**

**Therefore, from equation (i), we get**

**Thus, the required equation of the circle is **

ANSWERED AT 18/01/2020 - 07:04 AM

QUESTION POSTED AT 18/01/2020 - 07:04 AM

2R = 1D

d=44

Answer is B.

d=44

Answer is B.

ANSWERED AT 18/01/2020 - 07:03 AM

QUESTION POSTED AT 18/01/2020 - 07:03 AM

In equation, let x be the number of male students

a be the number of adults

y be the number of female students.

x= 7a+1

a= x/7 -1

y= x/2 or (7a + 1)/ 2

a + b = 82, let b be the number of students.

a + (x + y) = 82

a + [7a+1 + (7a+1)/2] = 82

a + [{2(7a+1) + 7a+1} / 2] = 82

a + [(14a +2 + 7a +1) / 2] = 82

a + [(21a + 3) / 2] = 82

(2a+ 21a + 3) / 2 = 82

(23a + 3) / 2 = 82

23a + 3 = 164

23a = 164 -3

23a = 161

a = 7

x = 7(7) +1, 49+1 = 50 male students

y=x/2, 50/2, 25 female students

50(male students) + 25(female students) + 7 (adults) = 82

a be the number of adults

y be the number of female students.

x= 7a+1

a= x/7 -1

y= x/2 or (7a + 1)/ 2

a + b = 82, let b be the number of students.

a + (x + y) = 82

a + [7a+1 + (7a+1)/2] = 82

a + [{2(7a+1) + 7a+1} / 2] = 82

a + [(14a +2 + 7a +1) / 2] = 82

a + [(21a + 3) / 2] = 82

(2a+ 21a + 3) / 2 = 82

(23a + 3) / 2 = 82

23a + 3 = 164

23a = 164 -3

23a = 161

a = 7

x = 7(7) +1, 49+1 = 50 male students

y=x/2, 50/2, 25 female students

50(male students) + 25(female students) + 7 (adults) = 82

ANSWERED AT 18/01/2020 - 07:02 AM

QUESTION POSTED AT 18/01/2020 - 07:02 AM

An outlier of a set of data is a data value that is too small or too large compared to other values in the set of data.
Range of a set of data is the difference between the largest data value and the smallest data valu in the set of data.
Range of 23, 23, 25, 27, 34, 34, 35, 41, 45, 45, 78 is 78 - 23 = 55
When the outlier 78 is removed, the range of the data set 23, 23, 25, 27, 34, 34, 35, 41, 45, 45 is 45 - 23 = 22
Thus, when the outlier 78 is removed, the range of the data set decreases by 55 - 22 = 33.
Therefore, the correct answer to the question "The outlier, 78, is removed from the data set shown.
23, 23, 25, 27, 34, 34, 35, 41, 45, 45, 78
How does this affect the range?" is "The range is decreased by 33." (option D).

ANSWERED AT 18/01/2020 - 07:01 AM

QUESTION POSTED AT 18/01/2020 - 07:01 AM

**Answer: **

**Step-by-step explanation:**

**The general form of equation of a circle is given by :-**

** , where r is radius and (a,b) is the center of the circle.**

**The given equation of circle:**

Taking square root on both sides, we get

**Hence, the length of the radius for this circle= **

ANSWERED AT 18/01/2020 - 07:01 AM

QUESTION POSTED AT 18/01/2020 - 07:01 AM

The answer to the problem above is the letter C. x(x-5)=176.

In this equation x represents the greater number. (x-5) represents the smaller number stating that 5 less than the greater number is the smaller number. x(x-5)= 176 represents multiplying x and x-5 is 176.

In this equation x represents the greater number. (x-5) represents the smaller number stating that 5 less than the greater number is the smaller number. x(x-5)= 176 represents multiplying x and x-5 is 176.

ANSWERED AT 18/01/2020 - 07:01 AM

QUESTION POSTED AT 18/01/2020 - 07:01 AM

The data in the table is not shown here but here is the formula for the residual

residual = observed value - predicted value

To get the predicted value, you simply use the best fit equation:

y = 2.78x - 4.4

Substituting 4:

y = 2.78(4) - 4.4

y = 6.72

This value is subtracted from the observed value to get the residual.

residual = observed value - predicted value

To get the predicted value, you simply use the best fit equation:

y = 2.78x - 4.4

Substituting 4:

y = 2.78(4) - 4.4

y = 6.72

This value is subtracted from the observed value to get the residual.

ANSWERED AT 18/01/2020 - 06:59 AM

QUESTION POSTED AT 18/01/2020 - 06:59 AM

**Answer:**

**Step-by-step explanation:**

The equation of circle is given by:

where,

(h, k) is the center

r is the radius of the circle.

**As per the statement:**

Given: center ( 5, 6), radius = 3 units

⇒(h, k) = (5, 6) and r = 3 units

Substitute these in [1] we have;

⇒

**Therefore, the equation of the circle is, **

ANSWERED AT 18/01/2020 - 06:57 AM

QUESTION POSTED AT 18/01/2020 - 06:57 AM

A is 307.2

b is 6.4 min maybe just a little less

b is 6.4 min maybe just a little less

ANSWERED AT 18/01/2020 - 06:55 AM

QUESTION POSTED AT 18/01/2020 - 06:55 AM

I showed my work too. hopefully this helps

ANSWERED AT 18/01/2020 - 06:50 AM

QUESTION POSTED AT 18/01/2020 - 06:50 AM

**Answer:**

As, when Graph is reflected across the X axis

1. The two, Image which is Quadrilateral G H I J and Pre image which is Quadrilateral QPRS will be congruent.

2. Distance from X axis to each of the vertices of Quadrilateral QPRS will be same as distance from each of the vertices of Quadrilateral G H I J from X axis.

**As, Quadrilateral QPRS lies in first Quadrant, so when it is reflected across X axis, it moves in Second Quadrant which is Quadrilateral GHIJ.**

**Q→→G, P→→H, R→→I, S→→J.**

**Coordinates of S=(1,1)**

**Coordinates of J=(-1,1)**

ANSWERED AT 18/01/2020 - 06:50 AM

QUESTION POSTED AT 18/01/2020 - 06:50 AM

**Answer:**

A. 5p + $12.50 = $62.50; p = $10.00

**Step-by-step explanation:**

ANSWERED AT 18/01/2020 - 06:47 AM

QUESTION POSTED AT 18/01/2020 - 06:47 AM

The answer not rounded is 50.91200

ANSWERED AT 18/01/2020 - 06:46 AM

QUESTION POSTED AT 18/01/2020 - 06:46 AM