Which number is closest to 63(square root)?
A. 8.4
B. 7.2
C. 7.9
D. 6.7

Answer:

100 bricks are required to construct the wall.

Step-by-step explanation:

All calculations should be done with unit in centimetres.

volume of the wall = length * width * height

                               =  15 * 20 * 200

                               = 60000 cm³

one brick volume =  length * width * height

                             =  15 * 8 * 5

                            = 600 cm³

So to fill the entire wall with x walls:  volume of wall / one brick volume

                                                         → 60000 / 600

                                                         → 100 bricks

Answer:

b on edge or 3(y-5)/2

Step-by-step explanation:

took the test right now

Answer:

a=12

Step-by-step explanation:

a/40=3/10

10 x 4=40, so

3 x 4=12

a=12

Answer:

[tex]\boxed{\sf{x=12}}[/tex]

Step-by-step explanation:

Isolate the term of a from one side of the equation.

Solution: Multiplication property of equation.

a/40=3/10

First, multiply by 10 from both sides.

[tex]\sf{\dfrac{a}{40}\cdot \:10=\dfrac{3}{10}\cdot \:10}[/tex]

Solve.

a/4=3

Then, multiply by 4 from both sides.

4a/4=3*4

Solve.

3*4=12

a=12

As a result, the correct answer is a=12.

I hope this helps you! Let me know if my answer is wrong or not.

your answer is correct, dw.

Answer:

you are correct :)

Step-by-step explanation:

-x^2 - 6x + 16 --> reverse the operations...

x^2 + 6x - 16 --> factor

(x + 8)(x - 2) --> hope this helps

:D

Answer:

18.33

Step-by-step explanation:

15x=275

x=275÷15

x=18.33

Answer:

the answer is ................. nothing

Answer:

Step-by-step explanation:

Answer:

[tex] \boxed{ \ - \frac{3}{45} }[/tex]

Step-by-step explanation:

10 3/9 - 10 2/5

we need to convert mixed fractions to improper fractions

[tex]10 \frac{3}{9} = \frac{10 \times 9 + 3}{9} = \frac{93}{9} [/tex]

[tex]10 \frac{2}{5} = \frac{10 \times 5 + 2}{5} = \frac{52}{5} [/tex]

Now, we have 93/9 - 52/5

We need to equate the denominators, before subtracting them.

[tex] \frac{93}{9} - \frac{52}{5} = \frac{93 \times 5}{45} - \frac{52 \times 9}{45} [/tex]

[tex] \frac{465}{45} - \frac{468}{45} [/tex]

[tex] \frac{ - 3}{45} [/tex]

[tex] \boxed{ - \frac{3}{45} }[/tex]

The result of 10 3/9- 10 2/5 is - 3/45

Answer:

to be honest i think it would be c

Step-by-step explanation:

Answer:

y=14

Step-by-step explanation:

because I solved it and got 14 ......

The value of y in the solution to the system of equations given is 20.

Linear equations are equations which are in the form of ax + by + c = 0, where a, b, and c are real numbers and also coefficients of both the variables, x and y, must not be equal to zero.

There are infinitely many solutions for a linear equation in two variables.

System of linear equations in two variables consist of two or more equations which are linear in two variables.

System of equations given here are,

3y = 18x + 6 and y = 2x + 14

We are solving this by substitution method.

Substituting y = 2x + 14 in 3y = 18x + 6, we have,

3 (2x + 14) = 18x + 6

Applying distributive property on the left hand side of the equation,

(3 × 2x) + (3 × 14) = 18x + 6

6x + 42 = 18x + 6

42 - 6 = 18x - 6x

36 = 12x

x = 3

Substituting x = 3 in y = 2x + 14,

y = (2 × 3) + 14

y = 20

Hence, the value of y in the solution to the system of linear equations 3y=18x+6 and y=2x+14 is 20.

To learn more about Linear Equations, click:

https://brainly.com/question/29739212

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Answer:

C = 48

Step-by-step explanation:

All angles together will equal 180. 1 Angle is a right angle at 90. That leaves 90 for the remaining 2 angels.

set your formula as 10x-8 + 4x+28 = 90 and solve for x

x = 5

now substitute 5 in place of x

c= 4*5 + 28

In a situation where x is a nontrivial solution, then every entry in x should not be nonzero. Therefore, it's false.

A nontrivial solution simply means a system of equation where the determinant of the coefficient is zero. When x is a nontrivial solution of Ax = 0, then at least one entry should be nonzero.

The equation x= x2u + x3v, with x2 and x3 free (and neither u nor v a multiple of the other), describes a plane through the origin. This is true. Since they're free variables, the space span has dimensions and this spans through the origin.

The equation Ax = b is homogeneous if the zero vector is a solution. Since x = 0 is a solution. Therefore, Ax = b. Hence, b = 0.

The effect of adding p to a vector is to move the vector in a direction parallel to p. It should be noted that adding p to a vector moves it in a direction that's parallel.

Learn more about nontrivial solution on:

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Answer:

length of RT = 4

Step-by-step explanation:

triangle RST has been enlarged by 3 as the length of ST is 3x longer than BC

so the length of RT (12) can be divisible by 3 that gives AC the length of 4cm

Answer:

a function can be represented verbally, algebraically, numerically, and graphically which here would be: A, B, E and D

Answer:

We have a problem here, Houston.

Step-by-step explanation:

Is "(x+5)2=36" supposed to be (x+5)^2=36 ?

If so,

x = ± 11

-----------------------

If it is indeed (x+5)2=36

then:

2x + 10 = 36

2x = 26

x = 13

None of the answer options fir either of these two interpretations of the equation provided.  Please check the equation.

Answer:

-11 and 1

Step-by-step explanation:

did the test

If you put the problem on a graph, the graph will show you (2,4)^2 and it'll be in a U-shape.

This probably won't help but let me know. :)

Answer:

The second one

Answer:

Cara earns $7 per hour babysitting plus $4 for transportation.

Step-by-step explanation:

When Cara works for 1 hour, she earns 7*1 + 4 = 11 dollars. The value of h increments as Cara babysits longer, but she gains the 4 dollar transportation fee regardless of her workhour.

Answer: That hexagon can be partitioned into six equilateral triangles, each with side of 9 meters. The area of an equilateral triangle is which in this case is which is roughly 35.074 square meters. The area of the hexagon is six times that, which comes to about 210.44417312 square meters.

Step-by-step explanation:

Answer:

Hi, I think y is equal to 42

Answer:

no solution

Step-by-step explanation:

-2y-3y+8=8-5y-12

-2-3y=-5y

-5y+8=8-5y-12

inverse operation: add 5y to both side

-5y+8=8-5y-12

+5y        +5y

-5y+5y=0, so it cancels out both -5ys

8=8-12

8=-4

there is no value for y to make the equation true, so there is no solution

Answer:

Solution

or,X(X-1)=9(X-3)

or,X2-X=9X-18

or,9X+X=18-X2

or,10X=18-X2

I think it will help you.

Answer:

[tex] \boxed{ \sf{7 \frac{1}{2} }}[/tex]

Step-by-step explanation:

convert to fraction form a/b

25 1/3 - 17 5/6

[tex]25 \frac{1}{3} = \frac{25 \times 3 + 1}{3} = \frac{76}{3} [/tex]

[tex]17 \frac{5}{6} = \frac{17 \times 6 + 5}{6} = \frac{107}{6} [/tex]

Now, we have 76/3 - 107/6

[tex] \frac{76}{3} - \frac{107}{6} [/tex]

[tex] \frac{76 \times 2}{6} - \frac{107}{6} [/tex]

[tex] \frac{152}{6 } - \frac{107}{6} [/tex]

[tex] \frac{45}{6} [/tex]

simplify

[tex] \purple{ \boxed{ \frac{45}{6} = 7 \frac{3}{6} = 7 \frac{1}{2} }}[/tex]

Answer:  The answer is D (4). The expression cannot be factored.

Answer:

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Step-by-step explanation:

.

Answer

if x=3 find y

y- x^3+x^2+9

Step-by-step explanation:

Answer:

-36

Step-by-step explanation:

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Answer:

7t

Step-by-step explanation:

Just combine the coefficients

6t + 4t - 3t = (6+4-3)t = 7t

Answer:

t(6+4-3)

=t(7)

=7 t

..........