The lengths of the triangle are 4x-6, 3x-5 and 4x-3 what is the perimeter of the triangle

QUESTION POSTED AT 05/12/2019 - 05:10 PM

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Dpoiski2 Find the perimeter of a rectangle with l = 0.85 m and w = 0.4 m. A. 1.25 m B. 2.5 m C. 0.34 m D. 0.68 m Unsubscribe

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

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


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

Based only on the information given in the diagram, which congruence theorems or postulates could be given as reasons why triangle hel is congruent to triangle pme

Hi :) Firstly we look at the side that is actually the same. How many sides are there that are the same? Next, we note the number of angles that are the same. 

ANSWERED AT 18/01/2020 - 07:30 AM


QUESTION POSTED AT 18/01/2020 - 07:30 AM

Find the perimeter of a rectangular swimming pool that measures 12 feet by 22 feet.

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

For a rectangular prism, if the base length was shrunk by a factor of two-thirds, the width was quadrupled, and height was cut in half, how would the changes affect the surface area formula?

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

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


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

Summer looked at the formula for the Pythagorean Theorem, a2 + b2 = c2, she said that it didn’t matter which sides of a right triangle were a, b, and c. Is she correct?

She is not correct because mixing the legs won't affect but mixing them with the hypotenuse would affect a lot. 

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


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

Find the length of the unlabeled leg of the right triangle if the hypotenuse is 13 amd bottom leg is 12

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

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


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

State the most appropriate metric units to use to measure the length of the front of a house. A. mm B. m C. km D. L

The answer is m (metres)

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


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

Which equation can be used to find the perimeter of a regular octagon with sides of length 12 m? A. P = 8 + 12 B. P = 8(12) C. P = 12 ÷ 8 D. P = 2(8) + 2(12)

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.

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


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

Three sides of a quadrilateral measure 2.5 centimeters, 1.8 centimeters, and 9 centimeters. If the perimeter of the quadrilateral is 20.9 centimeters, what is the length of the fourth side? 34.2 cm 15.7 cm 7.6 cm 7 cm

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

Find the height of a square pyramid that has a volume of 8 cubic feet and a base length of 2 feet. 6 feet 16 feet 12 feet 4 feet

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

What is the perimeter of a rectangle with a width of 23.6 cm and a length of 52.9 cm? A. 76.5 cm B. 100.1 cm C. 153 cm D. 180 cm

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

The radius of circle L is 22 cm. What is the length of its diameter? A. 88 cm B. 44 cm C. 22 cm D. 11 cm

2R = 1D
d=44

Answer is B.

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


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

Find the length of the radius for this circle. (x - 3)² + (y - 5)² = 8 8 4 2√2

Answer: 2\sqrt{2}

Step-by-step explanation:

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

(x-a)^2+(y-b)^2=r^2 , where r is radius and (a,b) is the center of the circle.

The given equation of circle: (x - 3)^2 + (y - 5)^2 = 8

\Rightarrow\ r^2=8

Taking square root on both sides, we get

\Rightarrow\ r=\sqrt{8}=2\sqrt{2}

Hence, the length of the radius for this circle= 2\sqrt{2}

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


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

The formula that relates the length of a ladder, L, that leans against a wall with distance d from the base of the wall and the height h that the ladder reaches up the wall is mc024-1.jpg. What height on the wall will a 15-foot ladder reach if it is placed 3.5 feet from the base of a wall?

We will use the Pythagorean theorem to determine the height: h^{2}=15^{2} - 3.5^{2}  h^{2} =225 - 12.25=212.75 Finally: h= \sqrt{212.75}=14.5859
Answer Ladder will reach the height of 14.59 feet ( to the nearest hundredths).

ANSWERED AT 18/01/2020 - 06:54 AM


QUESTION POSTED AT 18/01/2020 - 06:54 AM

Write the number in word form. An amoeba is one of the larger creatures of the microscopic world. The length of a typical amoeba is .0008 meters.

The conversion from meter to millimeter is to multiply the value to 1000 so the size of an ameoba written in word is point eight millimeters in converting from meters to millimeter 

ANSWERED AT 18/01/2020 - 06:33 AM


QUESTION POSTED AT 18/01/2020 - 06:33 AM

She wove a pot holder with an area of 80 square inches . The length and widths of th side are whole numbers. What possible dimensions make the most sense for a pot holder

You have the number 80. You can multiply two separate numbers to find the dimensions of the pot holder.

You can use:

1 x 80
2 x 40
4 x 20
5 x 16
8 x 10

For a pot holder, 8 x 10 makes most sense.

ANSWERED AT 18/01/2020 - 06:24 AM


QUESTION POSTED AT 18/01/2020 - 06:24 AM

Explain how to write and solve an equation to find an unknown side length of a rectangle when given the perimeter

P=2(L+W)
if given one side and the perimiter
(P/2)-L=W
(P/2)-W=L

ANSWERED AT 18/01/2020 - 06:20 AM


QUESTION POSTED AT 18/01/2020 - 06:20 AM

A preimage includes a line segment of length x and slope m. If the preimage is dilated by a scale factor of n, what are the length and slope of the corresponding line segment in the image? A. length=nx, slope=nm B. length=nx, slope=m C. length=x, slope=m D. length=x, slope=nm E. length=(n+m)x, slope=nm

The right answer for the question that is being asked and shown above is that: "D. length=x, slope=nm" A preimage includes a line segment of length x and slope m. If the preimage is dilated by a scale factor of n, the length and slope of the corresponding line segment in the image is that D. length=x, slope=nm

ANSWERED AT 18/01/2020 - 06:16 AM


QUESTION POSTED AT 18/01/2020 - 06:16 AM

A triangle with vertices at A(0, 0), B(0, 4), and C(6, 0) is dilated to yield a triangle with vertices at A′(0, 0), B′(0, 10), and C′(15, 0)-. The origin is the center of dilation. What is the scale factor of the dilation?

A triangle ABC is similar to a triangle A´B´C´ The scale factor of the dilatation : s.
0 * s =0
4 * s = 10
6 * s = 15
s= 10/4=15/6=2.5
The scale factor of the dilatation is 2.5.  It is shown in the attachment.

ANSWERED AT 18/01/2020 - 06:12 AM


QUESTION POSTED AT 18/01/2020 - 06:12 AM

A right triangle has one leg with a length of 48 and a hypotenuse with a length of 80. What is the length of the other leg? A. 63 B. 64 C. 65 D. 66

Pythagoras Theroem.
Leg₁²+leg₂²=hypotenuse²

Data:
Leg₁=48
hypotneuse=80

(48)²+ leg₂²=(80)²
2304+leg₂²=6400
leg₂²=6400-2304
leg₂²=4096
leg₂=√4096
leg₂=64

Answer: B.  64

ANSWERED AT 18/01/2020 - 06:11 AM


QUESTION POSTED AT 18/01/2020 - 06:11 AM

In ABC, the angle bisectors meet at point D. Point E is on AC, DE and is perpendicular to AC . Point F is the location where the perpendicular bisectors of the sides of the triangle meet. What is the radius of the largest circle that can fit inside ABC?

Answer:

The radius is DE.

Step-by-step explanation:

Given that

In ABC, the angle bisectors meet at point D. Point E is on AC, DE and is perpendicular to AC . Point F is the location where the perpendicular bisectors of the sides of the triangle meet.

we have to find the radius of the largest circle that can fit inside ABC.

The incenter of the triangle is the point formed by the intersection of the triangle's 3 angle bisectors.  

Here, the angle bisectors meet at point D therefore the incenter is point D and the side AC is the tangent to the circle that fits inside ABC.

Hence, the radius is DE.

ANSWERED AT 18/01/2020 - 06:10 AM


QUESTION POSTED AT 18/01/2020 - 06:10 AM