Triangle ABC ~ Triangle DEF and the area of Triangle DER is 11. 25 square centimeters. Find DE and DF. ​

Answer:

Step-by-step explanation:

(a) 7x = 56

divide through by 7

x= 8

(b) 4n = 48

divide through by 4

n = 12

(b) 5c = 80

divide through by 5

n = 16

Answer:

a. 8

b. 12

c.  16

Step-by-step explanation:

7x= 56

You have to get x alone so divide

Divide by 7 to get answer (whatever you do to one side, do to the other)

x= 8

EDIT:

4a. 7x=56

7x/7 = 56/7

x= 8

4b. 4x=48

4x/4=48/4

x= 12

4c. 5c= 80

5c/5=80/5

c=16

the same goes for the rest

p.s. pls practice your multiplication as you will need it throughout high school :)

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Answer:

The negative exponent rule tells us that a number with a negative exponent should be put in the denominator, or the numerator, depending on where the number is.

Step-by-step explanation:

Answer:

I got you bro so the sales tax is $0.80 and the total cost is $10.80

Answer:

Step-by-step explanation:

Now we have to,

→ find sales tax and total cost.

The sales tax will be,

→ 8% of $10.00

→ (10/100) × 8

→ 80/100

→ $0.8

Now the total cost will be,

→ $10 + sales tax

→ 10 + 0.8

→ $10.8

Hence, total cost is $10.8.

Answer:

by using Pythagoras law

h²=p²+b²

7²=4²+b²

b²=49-16

b=√33=5.744

third side is 5.744

Answer:

missing length = 5.74

Step-by-step explanation:

[tex]a^{2} = c^{2} - b^{2}[/tex]

[tex]a^{2} = 7^{2} - 4^{2}[/tex]

[tex]a^{2} = 49 - 16[/tex]

[tex]a^{2} = 33[/tex]

[tex]\sqrt{a^{2} } = \sqrt{33}[/tex]

[tex]a = 5.74[/tex]

Answer: 12 cm

Step-by-step explanation:

If one of the legs of a right triangle measures 5 cm and its hypotenuse measures 10 cm. Then the measure of the other leg will be 8.66 cm.

The Pythagoras theorem states that the sum of two squares equals the squared of the longest side.

The Pythagoras theorem formula is given as

H² = P² + B²

One of the legs of a right triangle measures 5 cm and its hypotenuse measures 10 cm.

Then the measure of the other leg will be

10² = 5² + B²

100 = 25 + B²

 B² = 75

  B = 8.66 cm

More about the Pythagoras theorem link is given below.

https://brainly.com/question/343682

#SPJ2

Answer:

Polygons are figures that are formed by three or more line segments. These line segments, even called sides, meet at their endpoints to form vertices. If we compare the number of sides, diagonals and triangles of a quadrilateral a pentagon and a hexagon we can find a system between the different polygons.

Step-by-step explanation:

Answer:

Step-by-step explanation:

Remark

The larger the numerator and the smaller the denominator, the bigger the quotient. Try and get the answer using that rule.

C

24.6 / 0.006 = 4100 Nothing is bigger than that.

Try D

2.46/0.006 =410

Answer:

No

Step-by-step explanation:

x - 8 ≤ -10, x = 5

Plug x =5 into the inequality.

5 - 8 ≤ -10

Simplify.

-3 ≤ -10

False, so the answer is no.

Answer:

See below

Step-by-step explanation:

The magnitude of a line can simply be found by the distance formula:

Distance = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

16 yards

Step-by-step explanation:

[tex] \sqrt{a} = {a}^{ \frac{1}{2} } [/tex]

Answer:

the answer is 0

Step-by-step explanation:

9×(_11)asw_99

Answer:

0 Ans .....

Step-by-step explanation:

Solution:

=99-11x9

=99-99

=0 Anwers ...........

Answer:

$28

Step-by-step explanation:

use a proportion:

$/lb = $/lb

3.5/1/2 = x/4

cross-multiply:

1/2x = 14

x = 28

Answer:

the answer is c, hope this helps

Answer: 7x + 6

Step-by-step explanation:

Combine like terms:

(2x + 5x) + (16 - 10)

Answer:

soln

2x + 16 + 5x – 10

8(x+2) + 5(x + 2)

8+2 (x+2)

10 (x + 2 )

Answer:

im not sure but i think its x=6

Answer:

33

Step-by-step explanation:

Answer:

1000

Step-by-step explanation:

10 x 10 x 10 = 1000

Answer:

1000 cm³

Step-by-step explanation:

The volume (V) of a cube is calculated as

V = s³ ( s is the edge length ) , then

V = 10³ = 1000 cm³

Answer:

the questions is not making sense or lacking other information can you edit your question

Answer:

Area = 52√3

A

Step-by-step explanation:

Remark

This is a trapezoid. The formula for a trapezoid is Area = 1/2 (b1 + b2)* h/2

Givens

b1 = 11

b2 = 15

h = 4*√3

Solution

Area = 1/2 (15 + 11 )*4*√3

Area = 1/2(26)*4√4

Area = 13 * 4√3

Area = 52√3

Answer:

the answer is d :)

Step-by-step explanation:

Answer:

3 one thats the answer its going up and down

Answer:

0.41 cm

Step-by-step explanation:

The scale on the map is 1 in 86 mi.

This means that, 1 cm on the map represents 86 miles in real life, or on earth.

Then we're told that in real life, a distance is 35 miles, and how far they are on the map.

If 1 cm equals 86 miles, then we can say that x cm equals 35 miles

1 cm ----> 86

x cm ----> 35

x * 86 = 35 * 1

x = 35 / 86

x = 0.41 cm

Therefore, they must be 0.41 cm farther or closer apart on the map scale.

Answer:

119.381cm

Step-by-step explanation:

C=2πr

2π * 14cm = 38πcm or 119.381cm

Answer:

The cost of the material for the full-sized pad is;

d) 222,750.00

Step-by-step explanation:

The parameters of the steel pad and the scale model are;

The volume of the deck = 18 yd³

The dimensions of the model of the same material = 6 feet by 4.5 feet and 4.5 inches thick

The weight of the sample, m₂ = 75 lbs

The cost of the steel, P = $55/lb

The dimensions of the sample in yards are;

6 feet = 2 yards, 4.5 feet = 1.5 yards, and 4 inches = 0.[tex]\overline 1[/tex] yards

The volume of the sample, V₂ = 2 yd. × 1.5 yd. × 0.[tex]\overline 1[/tex] yd. =  (1/3) yd.³

The density of the sample material, ρ = m₂/V₂

∴ The density of the sample material, ρ = 75 lbs/((1/3)yd.³) = 225 lbs/yd³

Therefore, the density of the material of the pad, ρ = 225 lbs/yd³

The mass of the steel  pad, m₁ = ρ × V₁

∴ The mass of the steel  pad, m₁ = 225 lbs/yd³ × 18 yd³ = 4,050 lbs

The cost of the material for the full-sized steel pad, C = m₁ × P

∴ C = 4,050 lbs × $55/lb = $222,750

Answer:

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Answer:

hey there, the product is x³ - 1

Answer:

x=  1 /3 y+ −5 /3

y=3x+5

Step-by-step explanation:

brainliest?

Answer:

Give my man brainliest

Step-by-step explanation:

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