-9(1 - 10n) - 2(3n + 9)

Place 45

∘

set-square and make an angle of 45

∘

by drawing the rays BD and BC

Answer:

3/ 16

Step-by-step explanation:

I hope this helps :)

Answer:

9

Step-by-step explanation:

let a = 2

b = 5

2a + b

Substituting the values,

=> 2(2) + 5

=> 4 + 5

=> 9

Let us consider that a = 2 ; b = 5

So, 2a + b

Substitute,

2a + b

→ 2×2 + 5

→ 4 + 5

→ 9

Hope it helps you...

Answered by Benjemin

Answer:

a fruit seller buys 712 fruits ,of which 3/4 are apples. of all apples that he bought 1/3 were found to be rotten. if he sold all the good apples at Rs.5 1/4 each.

Answer:

Im pretty sure it's (-4,-1)

Answer:

the purchase price would be $2142

Step-by-step explanation:

90+171×12

Answer:

f(x) = ∣x∣

A.)

f(x) = 3√x

E.)

Fist one is A and second is E

Step-by-step explanation:

Have a nice day! :-)

Answer:

91 short stories

Step-by-step explanation:

You just add 1 + 2 + 3 + 4 + 5 + 6... all the way to 13, and then at the end of 16 months, Troy still only wrote 91 stories since he only wrote them up until 13 months, and  then stopped afterwards.

Answer:

5(x+4)

Step-by-step explanation:

It's basically asking for the sum of a number and four to be multiplied by 5. Since the sum is made up of the unknown number and four, you'd put four and the unknown number in parenthesis while putting five on the outside, making it 5(x+4).

The area of a square with sides of length 9 is 81 square units.

Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.

The space enclosed by the boundary of a plane figure is called its area.

The area of a figure is the number of unit squares that cover the surface of a closed figure.

Given that, a square with side length of 9 units, we need to find its area, We know that, the area of a square is given by the square of it side, so Area = side²

Area of the given square = 9²

= 9 x 9

= 81 sq. units

Hence. the area of a square with sides of length 9 is 81 square units.

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Answer:

(-1,4)

Step-by-step explanation:

from,

midpoint (x,y) =(x1+x2)/2, (y1+y2)/2

=(-5+7)/2, (5+3)/2

=(-1,4)

the midpoint is (-1,4)

Answer:

(a + b)^2 — c^2

(a+b+c) ( a + b — c )

Answer:

C. 640π cubic units

Answer:

17000 pounds

Step-by-step explanation:

5 tons = 1 load

7000 pounds = 2 load

5*2000 = 10000 pounds

10000 + 7000 = 17000 pounds

Answer:

perimeter of a square =side side

Answer:

17.5

Step-by-step explanation:

a) c + y = 10 + 11 = 21

b) q + b + r = -14 + (-7) + (-13) =

= -(14 + 7 + 13) = -34

c) 8x + 3z = 8 · 9 + 3 · 4 = 72 + 12 = 84

d) 6a + 5b = 6 · (-1) + 5 · (-3) = -6 - 15 = -21

e) -9y + 2z = -9 · (-5) + 2 · (-7) = 45 - 14 = 31

f) -3t + 4y + s = -3 · 8 + 4 · (-2) + (-2) =

= -24 - 8 - 2 = -(24 + 8 + 2) = -34

g) y² + c = 4² + 7 = 4 · 4 + 7 = 16 + 7 = 23

h) a² + x = (-10)² + (-8) = 100 - 8 = 92

i) b + 2y² = 2 + 2 · 6² = 2 + 2 · 36 =

= 2 + 72 = 74

j) 3y² - 3z = 3 · 6² - 3 · (-7) = 3 · 36 + 21 =

= 108 + 21 = 129

Answer:

A) 27

Step-by-step explanation:

[tex] \frac{16}{16 + 12} = \frac{63 - ?}{63} [/tex]

➡️ [tex] \frac{4}{7} = \frac{63-? }{63}[/tex]

➡️ [tex]63 - ? = 36[/tex]

➡️ [tex]? = 27[/tex]

Answer:

Students:Adults = 118:94

Step-by-step explanation:

212-118=94

Answer:

check by cross multiplication

3*20 = 4*14

60 ≠ 56

no does not form a proportion

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

[tex] \frac{1}{6} mile = 1hour \\ \frac{1}{5} mile = xhour \\ \frac{1}{6} x = \frac{1}{5} \\ x = \frac{1}{6} \div \frac{1}{5} \\ \frac{1 }{6} \times \frac{5}{1} = \frac{6}{5} [/tex]

pls mark brainliest

[tex] \frac{16}{3} [/tex]

Step-by-step explanation:

[tex] \frac{ \frac{ - 4}{3} }{ \frac{ - 1}{4} } [/tex]

➡️ [tex] \frac{ \frac{4}{3} }{ \frac{1}{4} } [/tex]

➡️ [tex] \frac{4}{3} \div \frac{1}{4} [/tex]

➡️ [tex] \frac{4}{3} \times 4[/tex]

➡️ [tex] \frac{4 \times 4}{3} [/tex]

➡️ [tex] \frac{16}{3} [/tex]

Answer:

the second option is correct

Answer:

20

The denominators of 3 /10  and  1 /4  are 10  and  4.

The factors of  10  are  2 × 5  and  2 × 2

Therfore the LCD should have two 2's and one 5.

This means the answer is:

2 × 2 × 5 = 20

I hope this helps :)

Answer:

2 (L+B)

2 (4+5)CM

2×9

18cm

Answer:

e) 14

Step-by-step explanation:

(18-n)/2 = 2

18-n = 4

-n = -14

n = 14

The value of n when n is subtracted from 18 and the difference is divided by n, the result is 2 is 6.

The representation of mathematical statements as solutions to problems is the focus of the branch of mathematics known as algebra. Mathematical operations like addition, subtraction, multiplication, and division are combined with variables like x, y, and z to produce a meaningful mathematical statement.

Given:

When a number n is subtracted from 18

=(18- n)

and, the difference is divided by n

=(18 - n)/n

so, result is 2

(18 - n)/n = 2

18 - n = 2n

3n = 18

n= 18/3

n= 6

Hence, the value of n is 6.

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Answer:

(6, 8 )

Step-by-step explanation:

Assuming the dilatation is centred at the origin, then multiply the coordinates by the scale factor 2, that is

(3, 4 ) → (2(3) , 2(4) ) → (6, 8 )

Step-by-step explanation:

16)(a²-b)÷6

subtitute a and b above:

={(5)²-1}÷6

=(25-1)÷6

=24÷6

=4

18)y-(4-x-y÷2)

subtitute x and y above:

=2-(4-3-2÷2)

=2-(4-3-1)

=2-(4-4)

=2-0

=2

Note:if you need to ask any question please let me know.

Answer:

Step-by-step explanation:

False

First you have to  know what a natural number is.

They are all the integers from 1 to infinity.

Naturally they are closed for addition. 3 + 9 = 12. You can make as many examples as you like. You will not get anything outside the natural numbers.

3934859433993393390 + 4 + 22 is still going to give you a natural number.

Subtraction is a different matter.

44 - 100 is not in the natural number system.

Multiplication is OK.

5555 * 44444 still is a member of the natural numbers.

What about division? Remember, all you need is one example that doesn't work to say that the natural numbers aren't closed. Ready. How about

33/83?

Answer:

[tex]y = - 5[/tex]

Step-by-step explanation:

[tex] - 5(y - 3) - 10 = - 6y[/tex]

➡️ [tex] - 5y + 15 - 10 = - 6y[/tex]

➡️ [tex] - 5y + 5 = - 6y[/tex]

➡️ [tex] - 5y + 6y = - 5[/tex]

➡️ [tex]y = - 5[/tex]