Are these correct lol?

Answer:

10

Step-by-step explanation:

Answer:

21

Step-by-step explanation:

10^2-8^2=36

square root of 36=6

height=6

6x7x1/2=21

Answer:

Step-by-step explanation:

Volume of the cone

Height =2 √3

Base = 2cm

Answer:

The second graph

Step-by-step explanation:

hope it help

Answer:

Earthquakes

Step-by-step explanation:

Earthquakes are vibrations of the earth’s crust caused by movement at plate boundaries and major fault lines.

Answer:

5.25

Step-by-step explanation:

Answer:

$32.60

Step-by-step explanation:

Remember to find the percentage of something, times the number by the percentage, which is two decimals to the left. So 15% would be 0.15.

The total is unknown so replace it with a variable, such as x

.15(x)=4.89

Isolate x by dividing both sides by 0.15

x=32.6

Meal price: $32.60

Check your answer by multiplying this number by the tip percentages

32.6(.18)=5.87

32.6(.20)= 6.52

Answer:

Hello! the answer is 39 and 32

Step-by-step explanation:

To find the median we need to reorder the numbers from lowest to highest:

14,15,39,42,48

The one in the middle is the median! If there happens to be an even number, take the two middle numbers add them, together and divide them by 2.

To find the mean (also know as the avergae) we need to add all the numbers together and divide by the number of values that are present:

42+15+14+48+39 = 158

158/ 5 = 31.6 or 32

Hope this helps!

Answer:

The answer is 0.0085 So I'm guessing less than one.

Answer:

126.5

Step-by-step explanation:

The polygon is made up of a rectangle and a triangle.

rectangle: 11 cm by 8 cm

triangle: base = 11 cm; height = 7 cm

area = LW + bh/2

area = 11 cm * 8 cm + (11 cm)(7 cm)/2

area = 88 cm^2 + 77/2 cm^2

area = 88 cm^2 + 38.5 cm^2

area = 126.5 cm^2

Answer:

true i think....

Step-by-step explanation:

like terms have the same variables  but don't need to have the same coefficients.

In algebra, like terms are terms that have the same variables and powers. The coefficients do not need to match. Unlike terms are two or more terms that are not like terms, i.e. they do not have the same variables or powers.

Answer:

(x-4)(x+5)

Step-by-step explanation:

Find 2 numbers knowing sum (1) and product (-20). To find them, factor pairs of (-20) --> (-2,10) (-4,5). This sum is 1=b. Then, these 2 numbers are: - 4 and 5. Y=(x-4) (x+5). Hope this helped :)

Answer:

b=12.2 h=8

Step-by-step explanation:

dotted line vertical - always height

12 is under the height line vertically

Answer: 12 times

Step-by-step explanation:

Answer:

52 degrees

Step-by-step explanation:

A triangle's angles all add up to 180 degrees so we can create this equation:

x + 20 + 3x + 32 = 180

Combine like terms.

x + 3x + 20 + 32 = 180

4x + 52 = 180

Subtract 52 from both sides.

4x = 128

Divide.

128 / 4 = 32

x = 32

Plug in the value of x.

x + 20

32 + 20

52

Angle D is equal to 52 degrees.

Please inform me of any mistakes.

Answer:

The percent of increase is 20

Step-by-step explanation:

(18:15-1)*100=

120-100=20

Answer:

Step-by-step explanation:

Using the relation :

S = ut + 1/2at²

S = distance

Car A :

Initial speed, u = 40 mph

a = negative acceleration = - 1 mph

At time, t = 4

S = 40(4) - 0.5(1)(4²)

S = 160 - 8

S = 152 miles

Car B :

Initial speed, u = 30 mph

a = acceleration = 0.5 mph

S = 30(4) - 0.5(1)(4²)

S = 120 - 8

S = 118 m

Change in distance / time

Rate of change = (152 - 118)m / 4 hours

Rate of change = 34 mi / 4 hr

Rate of change = 8.5 miles per hour

Answer:

ok

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

6 x 3 = 18

90 / 18 = 5

Answer: 5

Step-by-step explanation:

Answer:

The additional information necessary is option;

D. [tex]\overline {MN}[/tex] ⊥  [tex]\overline {LP}[/tex]

Step-by-step explanation:

From the given figure, we have;

Given that ML ≅ MP,

The Hypotenuse Leg HL theorem of congruency is used to prove that a given number of right triangles based on the lengths of their hypotenuse and one of the legs. It states that two or more right triangles are congruent if they have equal lengths of both their corresponding hypotenuse side and one leg

To prove that ΔLMN and ΔPMN are congruent by HL, we will also be required to prove that ΔLMN and ΔPMN are right triangles

For ΔLMN and ΔPMN to be right triangles, the angles, ∠LNM and ∠PNM should be right angles = 90°

With ∠LNM = ∠PNM = 90°, then, line [tex]\overline {MN}[/tex] is perpendicular to line [tex]\overline {LP}[/tex] or  [tex]\overline {MN}[/tex] ⊥  [tex]\overline {LP}[/tex]

Therefore, the additional information necessary to prove that ΔLMN ≅ ΔPMN by HL is [tex]\overline {MN}[/tex] ⊥  [tex]\overline {LP}[/tex].

Answer:

85*

Step-by-step explanation:

Its  really complicated but manage to find it

Answer and Step-by-step explanation:

The actual answer is 348.

4 rectangles with area 60 each, which, when added together, equals 240.

1 square with area 36.

Each triangle face is 18 each, so 72.

Add those together and the answer is 348 [tex]ft^2[/tex] :).

#teamtrees #PAW (Plant And Water)

Answer:

(2, 0)

Step-by-step explanation:

Moving left just subtracts from the x coordinate (example: left 8 subtracts 8 from the x coordinate)

Brₐinliest plz so close to leveling up

Answer:

You would end at (2, 0)

The answer is 1/10

This is simple division

The equation is (1/5÷2)

I did my work on a sheet of paper so i know i did this correctly

My explanation of my work:

Keep change flip is the operation used here

So you keep 1/5 ,change the division sign to multiplication and flip the 2/1 into 1/2 so the new equation is (1/5x1/2) the answer to that is 1/10  

Have an amazing day :)

-yO mAmA

Answer:

The factors of 18 are: 1, 2, 3, 6, 9, 18

The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24

The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40

Then the greatest common factor is 2.

The greatest common factor of 18 , 24 and 40 is HCF = 2

The Greatest Common Divisor GCF or the Highest Common Factor HCF is the highest number that divides exactly into two or more numbers. It is also expressed as GCF or HCF

Least Common Multiple (LCM) is a method to find the smallest common multiple between any two or more numbers. A common multiple is a number which is a multiple of two or more numbers

Product of HCF x LCM = product of two numbers

Given data ,

Let the HCF be represented as H

Let the first number be represented as p

Now , the value of p = 18

Let the second number be represented as q

Now , the value of q = 24

Let the third number be represented as r

Now , the value of r = 40

And , the factors of 18 = 1, 2, 3, 6, 9 and 18

The factors of 24 = 1, 2, 3, 4, 6, 8, 12 and 24

The factors of 40 = 1, 2, 4, 5, 8, 10, 20 and 40

So , the HCF of 18 , 24 and 40 is the number 2

Hence , the HCF is 2

To learn more about HCF and LCM click :

https://brainly.com/question/20049151

#SPJ2

Answer:

6 3/4

Step-by-step explanation:

3 time 2 1/4= 6 3/4