Help me please !!!!!

Answer:

-2.1f-18

Step-by-step explanation:

-2.4f+0.3f=-2.1f.

-16-3=-19

Answer:

take common

Step-by-step explanation:

3de(2d-e)

Mark brainliest if helped

Answer:

1a) 24,750

1b) 1.868

2a) 6870

2b) 15,371

3a) 1410

3b) 25,400

4a) 9709

4b) 1596

5a) 0.272

5b) 0.080

6a) 19,943

6b) 1.779

7a) 1.340

7b) 2986

8a) 5.618

8b) 22,252

9a) 18.873

9b) 0.37

10a) 14.981

10b) 2400

Answer:

Option A

Step-by-step explanation:

Thisbis because when two of them are hanged on the same side it means that it's addition. (Addition of weight)

Answer:

ez, multiply out the first part, to become [tex]15x+10y[/tex][tex]-4x+7y[/tex] and now simplify and add up similar terms to get [tex]11x+17y[/tex] :)

Step-by-step explanation:

Answer:(d)

Step-by-step explanation:

Given

AB=AC

[tex]\therefore[/tex] We can write

[tex]\angle ABC=\angle ACB\ \quad \text{[angles corresponding to equal sides are equal]}[/tex]

[tex]\angle ABC=\angle BCA=\angle ACB=65^{\circ}[/tex]

Answer:

18

Step-by-step explanation:

30 + 18 = 48

30 - 18 = 12

Both true, so our solution is correct.

The value of the larger number is 30 and the value of the smaller number is 18.

A numeral system is a writing system for expressing numbers; that is, a mathematical notation for representing numbers of a given set in a consistent manner using digits or other symbols. In different numeral systems, the same sequence of symbols can represent different numbers.

Given that the sum of two numbers is 48. if the smaller number is subtracted from the larger the difference is 12. The two numbers will be calculated as,

x + y = 48

x - y = 12

________

2x = 60

x = 30

y = 30 - 12

y = 18

Therefore, the value of the larger number is 30 and the value of the smaller number is 18.

To know more about the number system follow

https://brainly.com/question/22038564

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[tex]\frac{2}{3}[/tex]

When graphed, the equation 2x - 3y = -3 forms a linear function. The slope of that line is 2/3.

Answer:

Lisa is 24.

Step-by-step explanation:

56/2=28

28-4-thomas=24-lisa \

Carla is 28, Thomas is 20, and Lisa is 24. Hope this helps! :)

Answer:

y=67.7 Degrees

Step-by-step explanation:

You're given the opposite and adjacent sides to angle Y, so we use Tan to find the angle:

Tan(y)= 100/41

We then inverse tan to isolate y

y=tan^-1 100/41

y=67.7 Degrees

Note: Use a calculate to find the final answer

Answer:

[tex]\frac{20}{13}[/tex] + [tex]\frac{5}{13}[/tex] [tex]\sqrt{3}[/tex]

Step-by-step explanation:

Given

[tex]\frac{5}{4-\sqrt{3} }[/tex]

To rationalise the denominator, multiply the numerator/ denominator by the conjugate of the denominator.

The conjugate of 4 - [tex]\sqrt{3}[/tex] is 4 + [tex]\sqrt{3}[/tex]

= [tex]\frac{5(4+\sqrt{3}) }{(4-\sqrt{3})(4+\sqrt{3}) }[/tex]

= [tex]\frac{20+5\sqrt{3} }{16-3}[/tex]

= [tex]\frac{20+5\sqrt{3} }{13}[/tex]

= [tex]\frac{20}{13}[/tex] + [tex]\frac{5}{13}[/tex] [tex]\sqrt{3}[/tex]

Answer:

Step-by-step explanation:

14x3x2=84

(12x10x2)/2=12x10=120

120+84=204

Answer:

SA=724 mm^2

Step-by-step explanation:

14*13==182,*2=364

14*10=140

10*12=120, *1/2=60, *2=120

364+140+120=724

SA=724 mm^2

Answer:A he is correct because the inner circle is a dilation of the outer circle

Step-by-step explanation: just did the test

The statement "He is correct because the inner circle is a dilation of the outer circle" is the best explanation.

Dilation is the process of modifying the size of an item or form by reducing or expanding its dimensions according to specific scaling variables.

The radius of the inner circle is 2 units, while the radius of the outer circle is 5 units.

Since dilations provide similar figures because multiplying by the scale factor yields proportionate sides while keeping the angle measure and form constant.

Troy is accurate if he claims the two circles are similar.

Hence, the statement (A) "He is correct because the inner circle is a dilation of the outer circle" is the best explanation.

Learn more about the Dilation here:

brainly.com/question/13176891

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Answer:

The best deal is the 18 ounce box

Answer:

the 18 ounce box is cheapest per ounce

Step-by-step explanation:

1. .28per ounce

2. .31per ounce

3. . 26per ounce

4. .25per ounce

Answer:

2x(x+y)(x-y)

Step-by-step explanation:

Given the expression;

(x+y)² + 2(x+ y)(x- y) + (x– y)²

Factorize

(x+y)² + (x+ y)(x- y) +   (x+ y)(x- y) + (x– y)²

= (x+y)[x+y+(x-y)] +(x-y)[(x+y)+(x-y)]

= (x+y)(x-y)(x+y+(x-y))

= (x+y)(x-y)(x+y+x-y)

= (x+y)(x-y)(2x)

hence the expanded form is 2x(x+y)(x-y)

Answer:

Step-by-step explanation:

Answer:

A = 28.3 cubic inches; P = 20.1 inches

Step-by-step explanation:

Looks like 3/4 of a full circle

The area of a circle is calculated with the formula: [tex]\pi r^{2}[/tex]

Since the problem wants pi = 3.14, we use 3.14 instead of pi in the equation.

The radius is given as 3 inches

Area = [tex]3.14*3^{2} = 3.14*9 = 28.26[/tex] cubic inches = 28.3 cubic inches

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

Perimeter is calculated with [tex]2\pi r[/tex].

But this is 3/4 of a circle with an additional two 3-inch sides

Perimeter = [tex]\frac{3}{4}*2\pi r[/tex] + 2(3) = 14.1 + 6 = 20.1 inches

Answer:

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Answer:

If a is positive and b is greater than 1 , then it is exponential growth. If a is positive and b is less than 1 but greater than 0 , then it is exponential decay

Step-by-step explanation:

small baby answer

Step-by-step explanation:

P = 8

Step-by-step explanation:

Given that P varies inversely with x then the equation relating them is

P = \frac{k}{x} ← k is the constant of variation

To find k use the condition P = 7 when x = 8 , then

7 = \frac{k}{8} ( multiply both sides by 8 )

56 = k

P = \frac{56}{x} ← equation of variation

When x = 7 , then

P = \frac{56}{7} = 8

Answer:

b

Step-by-step explanation:

they have the same constant rate of change

Answer:

the answer is B hope this helps you out

Answer:

3 x [tex]r^{2}[/tex]

Step-by-step explanation:

Answer:

y=-3/2x-5

y=x+5

(-4,1)

y=-3/2x+5

y=1/2x

(6,-4)

Step-by-step explanation:

the graph was a bit blurry but I believe this is right

Answer:

12.75feet (12¾)

Step-by-step explanation:

7t+1+5t+8=162feet

12t+9=162feet

12t=162-9

=153

t = 153÷9

=12.75feet (12¾feet)

15) k=15

16) t=7

17) c=12

18) d=7

19) d=3

20) r=5

21) x=4

pls mark me branliest !!

Answer:

(n + 1) (5m + 4)

Step-by-step explanation:

⇒ (n + 1) (5m + 4)

⇒ 5mn + 4n + 5m + 4

⇒ 5mn + 5m + 4n + 4

Answer:

(n + 1)(5m + 4)

Step-by-step explanation:

Given

5mn + 5m + 4n + 4 ( factor the first/second terms and the third/fourth terms )

= 5m(n + 1) + 4(n + 1) ← factor out (n + 1) from each term

= (n + 1)(5m + 4)

Answer:

J

Step-by-step explanation:

check by multiplying each x value by 4

Answer:

D (J)

Step-by-step explanation:

y=4x is basically multiplying the x value by 4; 10*4 is 40, 20*4 is 80, and so on.

Answer:

A $60.50

Step-by-step explanation:

165 divided 3 = $55.00 per class

55.00 X 10% = 5.50 per class

55.00 + 5.50 = 60.50