help maths equation class 8 ​

Answer:

6574900

Step-by-step explanation:

Answer:

6,574,900

Step-by-step explanation:

have a good day

9514 1404 393

Answer:

  BC = 6

Step-by-step explanation:

Tangents from the same point are congruent, so ...

  2x = x+3

  x = 3 . . . . . . . subtract x

  BC = x+3 = 3+3 = 6 . . . . . . substitute for x

The length of BC is 6.

Answer:

Length x width

Step-by-step explanation:

Multiply

Answer:

148.5 units^2

Step-by-step explanation:

First, find the area of the entire rectangle. The area is 180 because we have to  multiply 15*12.

Next, find the area of the triangle.  The area is 31.5 because we have to figure out 1/2(7*9)

Finally, you subtract 31.5 from 180.

Answer:

= 2 1/4 feet

Step-by-step explanation:

Length of chain Jesse needs = 10 1/4 feet

Length of chain Jesse has:

Two small pieces each measuring 2 1/8 feet

= 2 × 2 1/8 feet

= 2 × 17/8

= 34/8 feet

Third piece measuring 3 3/4 feet

Total Length of chain Jesse has = 34/8 feet + 3 3/4 feet

= 34/8 + 15/4

= 34+30/8

= 64/8

= 8 feet

Total Length of chain Jesse has = 8 feet

Length of chain Jesse needs to purchase = Length of chain Jesse needs - Total Length of chain Jesse has

= 10 1/4 feet - 8 feet

= 2 1/4 feet

Length of chain Jesse needs to purchase = 2 1/4 feet

Answer:

x = ⁷/₅

y = ⁻²⁹/₅

Step-by-step explanation:

4x = 3y + 23 (×3)

12x = 9y + 69

4y + 3x = -19

3x = -4y - 19 (×4)

12x = -16y - 76

∴ 9y + 69 = -16y - 76

25y = -145

y = ⁻²⁹/₅

12x = 9(⁻²⁹/₅) + 69

12x = 69 - ²⁶¹/₅

12x = ⁸⁴/₅

x = ⁷/₅

Answer:

1 and 8,  4 and 5

Step-by-step explanation:

There are two pairs, 1 and 8,  4 and 5

The angles in each pair must be on opposite sides of the transversal k, and on the outsides of the parallel lines l and m.

Given:

In triangle HIJ, N is the centroid and [tex]HK=10[/tex].

To find:

The value of KI.

Solution:

In a triangle, the centroid of the triangle is the intersection of its medians.

Median of a triangle from a vertex divides the opposite side into two equal parts.

It is given that, N is the centroid. It means JK, HL and IM are the medians of the triangle HIJ.

Since JK is a median of the triangle HIJ, therefore it divides the opposite side IH into two equal parts.

[tex]KI=HK[/tex]

[tex]KI=10[/tex]

Therefore, the value of KI is 10 units.

Answer:

47.2

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The answer is C. Let me know if I helped!

Answer:

C

Step-by-step explanation:

numbers of can(4) : numbers of bottles(5)

This means that for every 4 cans she took, she took 5 bottles

hope this helps

Answer:

d=60-degree (Vertically opposite angles)

e=d=60-degree (Alternate angles)

e+g=180-degree (Being in a straight line)

60+g=180

g=180-60

g=120-degree

Answer:

angle g = 20 degree

Step-by-step explanation:

60 degree + angle g = 180 degree (being co exterior angles)

angle g = 180 - 60

angle g = 120 degree

Note : co interior angles are the angles formed on the exterior of the two parallel lines and which are on the same side of the transversal  .

Answer:

f(x)=5x²+2x-5,G(x) =7x+8,H(x)=4x²-10

Answer:

Angle 5= 140

Step-by-step explanation:

I assume you are talking about parrallel lines and a transversal. If that is the case, I can guess that angles 4 and 5 are alternate exterior angles. Therefore they are congruent.

Answer:

y = [tex]\frac{20}{21}[/tex] x²

Step-by-step explanation:

Given that y and x² are directly proportional then the equation relating them is

y = kx² ← k is the constant of proportion

When x = 2

y = k × 2² = 4k

When x = 5

y = k × 5² = 25k

Then

25k - 4k = 20 ( difference between values is 20 )

21k = 20 ( divide both sides by 21 )

k = [tex]\frac{20}{21}[/tex]

y = [tex]\frac{20}{21}[/tex] x² ← equation of proportion

Answer:

80 degrees

Step-by-step explanation:

angle 1 is equal to 100 because of the law of exterior angles. And since andgle 1 and 2 make 180 degrees we can subtract 80 from 100 and we get the measure of angle 2. Angle 2 and 4 are the same becasue of the law of adjacent angles.

Answer:

[tex]3^2 (negative) \times3^8=729[/tex]

[tex]Answer = 3^6 \\(729)[/tex]

Answer:

[tex]3^{6}[/tex]

Step-by-step explanation:

=> [tex]3^{-2+8}[/tex] => [tex]3^{6}[/tex]

Answer:

D. 27

Step-by-step explanation:

sum of exterior angles = 360

2x + 56 + 57 + 85 + 4x = 360

6x + 198 = 360

6× = 360 - 198

6× = 162

× = 27

Answer:

the value of x is 2^9/4 then 2^3x-4=2^11/4

Answer:

Free fall acceleration 10m/s/s approx.

So in ten seconds after acceleration, it would be 100 m/s

Answer:

100 m/s

..........

Answer:

Step-by-step explanation:

The ordered pair is located on the boundary line of the graph of the inequality, and because the sign is "less than or equal to", the values on the boundary line are also included in the solution set.

Looking at this logically, we also see that it certainly possible for half the seats to be occupied by adults and half by children.

Answer:

No line of symmetry no angle and order of rotational symmetry

There is no line of symmetry, no angle, and order of any rotational symmetry so option (C) will be correct.

If two figures look an exact shape but their size could be small or big then both figures are called similar figures.

When anything has identical pieces facing one another or revolving around an axis, it is said to be symmetrical.

For example, a square with a side of 10 cm and another with a side of 20 cm both square will be similar.

Given the figure and axis for symmetry

If we fold across the line of symmetry then we can see that neither party can fully cover another

Hence the given figure will not have any symmetry.

To learn more about symmetry,

https://brainly.com/question/1597409

#SPJ5

Answer:

Smaller #: 19

Larger #: 70

Step-by-step explanation:

Step 1:

We can set the smaller number as x. We can find the larger number by adding 51, hence represented as 51+x.

Step 2:

We can write an equation with the given information. Four times the smaller number is equal to six more than the larger:

[tex]4x=51+x+6\\3x=57\\x=19[/tex]

If the smaller number represented as x is [tex]\fbox{19}[/tex] , then the larger number represented as 51+x would be [tex]\fbox{70}[/tex] .

I hope this helps! Let me know if you have any questions :)

Answer:

x=-3

Step-by-step explanation:

so you tryna get x by itself, so you are gonna do the opposite. so move nine over by subtracting it.

-9=3x

now you have to divide -9 by 3 to move it over

-2=x

Answer:hey

Step-by-step explanation: -_-

Answer:

B) y=0

Step-by-step explanation:

The exponential function shown has a horizontal asymptote at the line y=0, which means that y will approach 0 as the value of x decreases. Therefore, B is correct.

Step-by-step explanation:

x²+x²= 10

2x²=10

x²=10/2=5

x =√5 or 2.24

Step-by-step explanation:

where are the 2 functions ?

Answer:

1

Step-by-step explanation:

OPTION A : 1 is the correct answer

Answer:

6 1/10

Step-by-step explanation: