Write [tex]\sqrt{8}[/tex] in the form [tex]4^n[/tex] - I'm doing GCSE maths and have no clue how to do this without a calculator.

The volume of cast iron pipe is 1053.19 in³.

The volume of a cylinder can be calculated by: [tex]\pi *r^2*h[/tex], where:

r = radius

h= height

In this question, the cylinder is represented for a pipe, where:

r = inner diameter= [tex]inner\;diameter=outer\;diameter-2*thickness[/tex]

h= length of pipe

From this, you should apply the volume of the pipe. See the steps:

         inner diameter=outer diameter-2*thickness

         inner diameter=8-2*0.6

         inner diameter=8-1.2=6.8 in              

                  [tex]V_{pipe}=\pi *r_{internal}^2*h\\ \\ V_{pipe}=\pi *(\frac{6.8}{2} )^2*29\\ \\ V_{pipe}=\pi *(3.4)^2*29=1053.19\;in^3[/tex]

The volume of cast iron pipe is 1053.19 in³.

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Answer:

Step-by-step explanation:

x + 44x = 180

45x = 180

x = 4

180-x = 176

answer is 4

Answer:

To answer this, we would first have to divide 576 by 6. Next, take that answer and put it in the next division problem including the number 254. Whatever the answer is that is you final answer

Step-by-step explanation:

Sorry I couldn't tell you the answer. My sisters woke me up at 1 in the morning, so I didn't get much sleep. Please forgive me if the answer you come up with is wrong. If it is, please report my answer. If it is right, please mark me as brainliest because I really want to level up

Answer:

60

Step-by-step explanation:

D

Answer:

Hope this helps you........

Answer:

C

Step-by-step explanation:

< open circle, not ≤

The equation of parabola it becomes will be x²= 4py.The y-axis passes through (0, -a), and the directrix of the parabola x² = 4ay has the equation y + a = 0

A parabola is a curve in which all points are at the same distance from two fixed points: the focus and a fixed straight line (the directrix ).

The given expression in the problem is;

[tex]x^2 +y^2-2py +p^2= y^2+2py+p^2[/tex]

On simplifying the gIven expression we get;

[tex]x^2- 2py = 2py \\\\ x^2= 2py+2py \\\\x^2=4py[/tex]

The y-axis passes through (0, -a), and the directrix of the parabola x²= 4ay has the equation y + a = 0. The y-axis passes through (0, a), and the center of the parabola x2 = -4ay has the equation y - a = 0.

Hence the equation of parabola it becomes will be x²= 4py

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Answer:

3/4k^5+-1/2k^3

Step-by-step explanation:

You put the numbers in order from the largest exponent to the smallest.

Answer:

$133.20

Step-by-step explanation:

Since the amount of hours she worked isn't a whole number, we can first separate 18 and 1/2 and work the problem out one at a time.

1. Multiply 7.20 by 18 to get 129.60

2. Multiply 0.50 by 7.20 to get 3.60.

3. Add 129.60 and 3.60 together to get the answer, 133.20.

Question wasn't clear, but I hope this helps!

Lemon Squash                  If you put 90ml of concentrate in a glass, how

2 parts concentrate          water should be added?

to 5 parts water                 x  ml.

Ratio:  2:5 or 2/5

Now, if this ratio is maintained then the amount of water to be added to 90 ml concentrate in a glass can be calculated as:

2/5 = 90/x ( x = the unit (ml)/ how many ml of water)

Cross multiplication of the above equation will give us:

2x = 90 x 5 = 450

Dividing both sides by 2 we will get:

x = 450/2 = 225

Therefore, if we put 90ml of concentrate in a glass, the amont of water to be added is 225ml.

I hope this answer helps!

Yours Faithfully,

Damian. / Bright_SCR.

The total area covered by the yard by the 3 sprinkler heads such that each covers a circular area with no overlap is 5892.857 ft².

The area of a circle is the area covered by the circle with radius r. It is given by the formula,

[tex]\text{Area of circle} = \pi r^2[/tex]

As it is given that the area covered by a single sprinkler system is of the radius of 25 feet, therefore, the area covered by a singular sprinkler system can be written as,

Area of sprinkler = Area of a circle with radius 25 feet

 [tex]\begin{aligned}\text{Area of sprinkler}&= \pi r^2\\&=\pi (25^2)\\&= 1964.2857 \approx 1964.286\rm\ ft^2\end{aligned}[/tex]

Now, as we know that the yard has three such sprinkler systems, therefore, the area covered by the sprinkler will be thrice the area covered by a single sprinkler,

The total area covered by the sprinkler = 3 x Area of sprinkler

                                                                   = 3 x 1964.286

                                                                   = 5892.857

Thus, the total area covered by the yard by the 3 sprinkler heads such that each covers a circular area with no overlap is 5892.857 ft².

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Answer:

3x²-3x+2

Step-by-step explanation:

To find A-B:

Substitute A and B with given values:

x²-(-2x²+3x-2)

Epand the bracket since there is a -1 in front of the bracket (the 1 is invisible)

x²+2x²-3x+2

Simplify:

3x²-3x+2

Answer:

[tex]-2z+2[/tex]

Step-by-step explanation:

Start by taking the terms out of the parentheses:

[tex]-3z-(-z-2)[/tex]

[tex]-3z-(-z)-(-2)[/tex]

Please note that two negatives make a positive:

[tex]-3z+z+2[/tex]

Combine like terms:

[tex]-2z+2[/tex]

Answer:

It's the third option . it's the right ans .

pls mark my ans as brainliest.

Answer:

Option C.

Step-by-step explanation:

Let us begin by redrawing the quadrilaterals so that the congruent sides and angles become more obvious in the attachment:

From the diagrams, we have the congruent angles to be:

∠F, ∠K, ∠S

∠ I, ∠L, ∠T

∠G, ∠N, ∠R

∠H, ∠M, ∠Q

We can conclude that the correct option is:

∠M and ∠Q

Let's factorise it :

[tex]\: {\qquad \dashrightarrow \sf ( 10 - y ) ( 10 + y) }[/tex]

[tex]\: {\qquad \dashrightarrow \sf 10(10 + y) + [ - y(10 + y)] }[/tex]

Using distributive property we get :

[tex]\: {\qquad \dashrightarrow \sf {10}^{2} + 10y+ (- 10y - {y}^{2} ) }[/tex]

[tex]\: {\qquad \dashrightarrow \sf {10}^{2} \: \cancel { + 10y }\: \: \cancel{ - 10y } - {y}^{2} }[/tex]

[tex]\: {\qquad \dashrightarrow \sf 100 - {y}^{2} }[/tex]

Therefore,

[tex] {{{\qquad \dashrightarrow \sf ( 10 - y ) ( 10 + y) = 100 - {y}^{2}}}}[/tex]

Answer:

x+5

Step-by-step explanation:

Hope this helps

Hi! I hope you're enjoying your day!

The linear relationship between x and y is

y=x+5

So we take a number x, add 5 to it, and that is equal to y.

Let's try and see if it works.

Let's take 2.

Add 5:

y=5+2

That should be equal to 7.

y=7

Yeah! It worked :)

Let's try another one.

Let's take 3.

y=3+5

y=8

Woo-hoo! It worked again :)

Hence, the answer is

[tex]\boxed{\boxed{\bold{Option~B~-y=x+5}}}[/tex]

Hope everything is clear.

If you have any questions, please comment.

#LearningIsFun

[tex]\rule{250}{2}[/tex]

Answer:

○ [tex]\displaystyle 25[/tex]

Step-by-step explanation:

[tex]\displaystyle 4 = 2\sqrt{25} - 6 \\ 4 = 2[5] - 6 \\ \\ 4 = 10 - 6[/tex]

I am joyous to assist you at any time.

Answer:

2

Step-by-step explanation:

The image has all the steps. Remember PEMDAS

Solving

Alright so we know there are two sticks and that one is 10cm longer than the other. Knowing this information we can start off by dividing the total to make the sticks equal in length.

80cm ÷ 2 = 40cm

^ So currently each stick is 40cm

From here we have to make one stick 10cm longer so we would subtract 10cm from one and add that 10cm to the other one.

Stick 1:  40cm - 10cm = 30cm
Stick 2: 40cm + 10cm = 50cm


Answer

This means that the longest stick is 50cm in length

The length of the longest stick is 45cm.

An equation contains one or more terms with variables connected by an equal sign.

Example:

2x + 4y = 9 is an equation.

2x = 8 is an equation.

We have,

Let's call the length of the shorter stick "x".

According to the problem, the longer stick is 10cm longer than the shorter stick, so its length is x + 10.

Now we know that when the two sticks are put end to end, the total length is 80cm.

Therefore, we can write the equation:

x + (x + 10) = 80

Simplifying the equation, we get:

2x + 10 = 80

Subtracting 10 from both sides:

2x = 70

Dividing both sides by 2:

x = 35

The length of the shorter stick is 35cm, and the length of the longer stick is:

x + 10 = 35 + 10 = 45

Therefore,

The length of the longest stick is 45cm.

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#SPJ2

Step-by-step explanation:

straight angle a + 117 = 180

a = 180 - 117

= 63

total angle in triangle = 180

63 + b + 81 = 180

b = 180 - 63 - 81

= 36

Answer:

b = 36°

Step-by-step explanation:

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

117° is an exterior angle of the triangle , then

b + 81° = 117° ( subtract 81° from both sides )

b = 36°

Answer:

about 5

Step-by-step explanation:

One 12 fl oz bottle of 7.7% beer ≈ 1.5 standard drinks

1.5 fl oz vodka ≈ 1 standard drink

Therefore,

Two 12 fl oz bottle of 7.7% beer ≈ 3 standard drinks

3 fl oz vodka ≈ 2 standard drinks

So, 2 bottles of beer and 3 fl oz of vodka ≈ 3 + 2 = 5

Answer:

C Slope = -4/3, Y-Intercept = 4
Step-by-step explanation:

The Y- Intercept is where the line contacts the Y-Axis (the vertical line)
Since the line is going down, the slope is going to be negative. You fine the slope by finding a point the line goes through perfectly and then since its negative, go down however many it is until the line goes through another point perfectly, then go right and how many points it takes to get to the point is your denominator. (so your slope is -4/3)

Answer:

[tex]x^{2} < 1[/tex]

Step-by-step explanation:

Answer:

a line of symmetry is a line divide an object in to two equal parts. answer is A

Expression consists of numbers, variables, and mathematical operations. The expression f(w)=5(w+4) is equal to f(9)=5(9)+20.

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The expression is given to you is,

[tex]f(w)= 5(w+4)[/tex]

Now, if we solve the expression it can be written as,

[tex]f(w)=5w+20[/tex]

substituting the value of w, we will get,

[tex]f(9)=5(9)+20[/tex]

Hence, the expression f(w)=5(w+4) is equal to f(9)=5(9)+20.

Learn more about Expression:

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Answer:

c

Step-by-step explanation:

I got it right.