WILL GIVE BRAINLIEST
An open drainage ditch is made using metal pipes with a diameter of 200 cm. To create an opening on the top of each pipe, workers must cut and remove a section on each pipe as shown.


What is the depth of this ditch, to the nearest tenth of a centimetre?


Note: Answers not to the nearest tenth of a centimetre will be considered wrong.

WILL GIVE BRAINLIESTAn Open Drainage Ditch Is Made Using Metal Pipes With A Diameter Of 200 Cm. To Create

Answers

Answer 1

Answer:

180 cm

Step-by-step explanation:

I had to look up some of these equations

Central angle  'a' = 2 arcsin ( c/(2R) = 2 arcsin (120/(2*100) ) = 73.74°

d= R cos ( a/2) = 100 cos ( 73.74/2) = 80 cm

So from the cutout to the bottom will be   80 + 100 = 180 cm

WILL GIVE BRAINLIESTAn Open Drainage Ditch Is Made Using Metal Pipes With A Diameter Of 200 Cm. To Create

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Se sabe q la suma de tres numeros es de 850. El primer es un tercio del segundo y el tercer número es el doble del segundo.¿Cuales son los numeros apollese en el esquema de barra para solucionar el problema?

Answers

Answer:

Primer número = x = 85

Segundo número = y = 255

Tercer número = z = 510

Step-by-step explanation:

Se sabe que la suma de tres números es 850. El primero es un tercio del segundo y el tercer número es el doble del segundo.

Representamos:

Primer número = x

Segundo número = y

Tercer número = z

Se sabe que la suma de tres números es 850.

x + y + z = 850 ...... Ecuación 1

El primero es un tercio del segundo

x = 1/3 años

El tercer número es el doble del segundo.

z = 2 años

Sustituimos 1 / 3y por x y 2y por z en la Ecuación 1

1 / 3y + y + 2y = 850

y / 3 + 3y = 850

Multiplica ambos lados por 3

y + 9y = 850 × 3

10 años = 2550

y = 2550/10

y = 255

Resolviendo para x

x = 1/3 años

x = 1/3 × 255

x = 85

z = 2 años

z = 2 × 255

z = 510

Por eso,

Primer número = x = 85

Segundo número = y = 255

Tercer número = z = 510

PLEASE HELP! Due in a few hours!!
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Answers

Answer:

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and add their area

Steps for -3(x+2)=4+2x

Answers

Answer:

x = -2

Step-by-step explanation:

-3(x + 2) = 4 + 2x

= -3x + -6 = 4 + 2x  (Distribution: -3)

= -3x + -2x - 6 = 4  (Moving the variables to the left and change the signs)

=  -3x + -2x = 4 + 6 (Move consatnts to the right and change signs)

= -3x - 2x = + 6  --> (Collect like terms)

= -5x = 10 (Then add)

= (divide -5x = 10 by -5)

= x = 2

What is the scale factor from triangle DEF to triangle ABC?

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Answer:

i think you need to include a picture  

Step-by-step explanation:

Expand: logh(9jk) Log Subscript h Baseline 9 times log Subscript h Baseline j times log Subscript h Baseline k Log Subscript h Baseline 9 + log Subscript h Baseline j + log Subscript h Baseline k Log 9 + log j + log k

Answers

Answer:

log h 9 + log h j +log h k

Step-by-step explanation:

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solve for x,x(3+9)=72​

Answers

Answer:

x(3+9)=72

or, x(12)=72

or, x=72÷12

or, x = 6 ans.

Answer: x=6

Step-by-step explanation:

Let's solve your equation step-by-step.

x(3+9)=72

Step 1: Simplify both sides of the equation.

12x=72

Step 2: Divide both sides by 12.

12x/12=72/12

x=6

Answer:

x=6

1.) 5n + 44/n, (n = 11)​

Answers

ANSWER:
50

STEP BY STEP:
5+44=49
44/44=1
49+1=50

Hope this helps. :)
Answer is in the picture

Solve 5x=45 using the opposite operation

Answers

Answer:

the answer is 8

Step-by-step explanation:

5 times  8 =45 5 time table

Answer:

9

Step-by-step explanation:

8x9=45

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Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

4 grams

Step-by-step explanation:

Find how many grams of sugar are in each mixture:

10(0.15)

= 1.5

25(0.1)

= 2.5

Add these together:

1.5 + 2.5 = 4

So, the mixture contains 4 grams of sugar

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Answer:

Step-by-step explanation:

w=204.8

Answer:

204.8

Step-by-step explanation:

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DOuble Check:

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What is 7.0483 rounded to the nearest hundredth?

Answers

Answer:

7.080

Step-by-step explanation:

The rounding off to the number nearest hundredth will be 7.048.

What is rounding off the numbers?

When a number is rounded off, its value is maintained but is brought closer to the next number, simplifying the number. For entire numbers as well as decimals at different places of hundreds, tens, tenths, etc., it is done.

A number can be rounded off to its lower value if the number after the decimal is between 0 and 4. The number will be rounded off to its higher value if the number after it is between 5 and 9.

The given number will be rounded off as below:-

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Find the tangent of the larger acute angle in a right triangle with side lengths 3, 4, and 5. Write your answer as a fraction

Answers

Answer:

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Step-by-step explanation:

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Calculation of the tangent:

Since in a right triangle with side lengths 3, 4, and 5

Here there is the larger acute angle in the 3, 4 and 5 so it should be lies between 3 and 5

So, it should be like

= opposite side ÷ adjacent side

= [tex]4\div 3[/tex]

Hence, The tangent should be in fraction is [tex]4\div 3[/tex]

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Which expression represents the algebraic phrase "nine times a number plus thirteen"? 9 minus y + 13 9 + y minus 13 9y + 13 13y + 9

Answers

9y+13 would be correct

Answer:

dddddddddddddv

Step-by-step explanation:

A 3-column table with 6 rows. Column 1 is labeled Number Rolled with entries 1, 2, 3, 4, 5, 6. Column 2 is labeled Observed Frequency with entries 10, 12, 10, 10, 8, 10. Column 3 is labeled Relative frequency with entries StartFraction 1 over 6 EndFraction, A, StartFraction 1 over 6 EndFraction, StartFraction 1 over 6 EndFraction, B, StartFraction 1 over 6 EndFraction.
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A =
B =

Answers

Answer:

A = 1/5

B = 2/15

brainlist plz byubnbhy

Step-by-step explanation:

Answer:

A = 1/5

B = 2/15

Step-by-step explanation:

what are the rules for multiplying negative numbers?​

Answers

Answer:

When multiplying negative numbers, just remember 2 things. 1: 2 negative values will always give a positive value. 2: If you only have 1 negative value, your answer will also be negative. Just remember these rules and the rest is simple multiplication.

Answer:

Hi there! Your answer is down below!

Step-by-step explanation:

The rule of how to multiply negatives is simple: For a case where a negative number is multiplied by a positive, the rule above can be restated as: take the positive number, and the negative WITHOUT the minus sign, multiply them and add the inus sign to the product.

Have a nice day!

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Answers

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Line segment JK has endpoints at J(-3,4) and K(3,6). Which is an equation of a line that is perpendicular to line segment JK and passes through the point (3,-12)

Answers

Answer:

y = -3x - 3.

Step-by-step explanation:

Find the slope of the line JK:

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= 1/3.

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Now we use the point-slope form of a line to get the required equation:

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Answers

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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Answer:

In general, for a trinomial of the form x2+bx+c x 2 + b x + c you can factor a trinomial with leading coefficient 1 by finding two numbers, p and q whose product is c, and whose sum is b.

Rhian sat a maths test and an English test. in the maths test, she scored 14/17. in the English test, she scored 31/39. in which test did she do better

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Answer:

She did better on the Math test.

Step-by-step explanation:

14/17 is 82 percent, and 31/19 is only about 80%.

Solve. Use paper to show your work. Enter your answer in the box.



4\frac{5}{6}-2\frac{1}{2}=4
6
5

−2
2
1

=
4
4​

Answers

Answer: illegel input- too many equals signs

Step-by-step explanation:

PLEASE IF U KNOW ANSWER HELP ME I NEED IT IN NEXT 10 MINUTES

Answers

Answer:

x + 2y - 3 = 0

Step-by-step explanation:

Coordinates of the points P and Q are (-3, 0) and (0, 6) respectively.

Slope of PQ = (0- 6)/(-3 - 0) = - 6/-3 = 2

Slope of line perpendicular to PQ = - 1/2

Since, required line passes through point R(7, - 2) and is perpendicular to PQ.

Therefore, equation of line in point slope form is given as:

[tex]y - (-2) = - \frac{1}{2} (x - 7) \\ \\ y + 2 = - \frac{1}{2} (x - 7) \\ \\2(y + 2) = - (x - 7) \\ \\ 2y + 4 = - x + 7 \\ \\ 2y + 4 + x - 7 = 0 \\ \\ x + 2y - 3 = 0[/tex]

Therefore x + 2y - 3 = 0 is the required equation of line.

Answer:

Answer:

x + 2y - 3 = 0

Step-by-step explanation:

Coordinates of the points P and Q are (-3, 0) and (0, 6) respectively.

Slope of PQ = (0- 6)/(-3 - 0) = - 6/-3 = 2

Slope of line perpendicular to PQ = - 1/2

Since, required line passes through point R(7, - 2) and is perpendicular to PQ.

Therefore, equation of line in point slope form is given as:

\begin{gathered}y - (-2) = - \frac{1}{2} (x - 7) \\ \\ y + 2 = - \frac{1}{2} (x - 7) \\ \\2(y + 2) = - (x - 7) \\ \\ 2y + 4 = - x + 7 \\ \\ 2y + 4 + x - 7 = 0 \\ \\ x + 2y - 3 = 0\end{gathered}

y−(−2)=−

2

1

(x−7)

y+2=−

2

1

(x−7)

2(y+2)=−(x−7)

2y+4=−x+7

2y+4+x−7=0

x+2y−3=0

Therefore x + 2y - 3 = 0 is the required equation of line.

hope it helps you

can someone please help me, i have to turn this in soon.​

Answers

B is the correct answerPlease let me know if I am wrong.

para que sirve el álgebra​

Answers

Answer:

si mamacita

Step-by-step explanation:

El álgebra es un tipo de matemática. Se trata de ecuaciones y resolución de incógnitas. El álgebra se usa para calcular números basados ​​en una ecuación. ¡Espero que esto ayude!

for what values of x and y is PQRS and parallelogram

Answers

Answer:

x = 2

y = 3

Step-by-step explanation:

Measures of opposite sides of a parallelogram are equal.

Therefore,

PQ = SR

2y + 2 = y + 5

2y - y = 5 - 2

y = 3

QR = PS

2x + 3 = y + 4

2x + 3 = 3 + 4 (y = 3)

2x = 7 - 3

2x = 4

x = 4/2

x = 2

Thus, for x = 2 and y = 3, PQRS is a parallelogram.

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