Which of the following numerical expressions results in a positive number?

A (-12) - (-21) - 10
B (-12) - (-21)
C 12 - 21
D (-21) – (-12)

Answers

Answer 1
A = - 1
B = 9
C = - 9
D = - 9

B

Related Questions

The circumcenter of a triangle can lie on one of the edges if the triangle is:

Select the best choice from the answers provided.
A.
Right
B.
Acute
C.
Obtuse
D.
none of the above choices are correct.

Answers

Answer:

B. Acute

Step-by-step explanation:

the hypotenuse for right triangles and lies outside the triangle for obtuse triangles. The circumcenter coincides with the midpoint of the hypotenuse if it is an isosceles right triangle.

I think Acute is the answer

If a floor plan has a key for 1 graph paper line = 5 ft in real life, what is the area of a rectangular room in real life if the area on the floor plan is 44?

*HINT: the key is for a dimension, but your answer is an area.*

Answers

Answer:  1100 square meters

=======================================================

Explanation:

1 unit along the grid represents 5 feet in real life.

A 1 unit by 1 unit square on the graph paper represents a 5*5 = 25 square foot area in real life.

This means we multiply by 25 when going from the floor plan's area to the real world area.

44*25 = 1100 square meters is the area of the room in real life when the floor plan says the area is 44 sq units.

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER

Answers

Answer:

EG = 6 in.

Step-by-step explanation:

EG is congruent to DF and DF is 6 in. so EG would be 6 in.

Answer:

6 in.

Step-by-step explanation:

DF's length is congruent ( same ) to EG's length which is shown by the one mark on each side

Since DF's length is 6 inches, EG's length is also 6 inches.

Therefore,the answer is 6 in( inches )

Hope this helps!

Please mark as brainliest!!!

A window has the shape of a rectangle with a semicircle at the top.

Find the approximate area of the window using the dimensions shown.

Answers

Answer:

8+pi/2

Step-by-step explanation:

The area of the rectangle on the bottom is 8, or 2*4. The area of the top is half (because it's a semi circle) of pi*r^2, or just 1/2 pi

HELP The recursive rule for a sequence is shown An=An-1 +4 a1=14 write the explicit rule in simplified form for the sequence An=

Answers

Answer:

aₙ = 4n + 10

Step-by-step explanation:

Given is the AP with

The first term of 14The common difference of 4

Explicit rule for the sequence is

[tex]a_n=a_1+(n-1)d=14+(n-1)(4)=14+4n-4=4n+10[/tex]

Answer:

[tex]\sf a_n=4n+10[/tex]

Step-by-step explanation:

A recursive formula for an arithmetic sequence allows you to find the nth term of the sequence provided you know the value of the previous term in the sequence.

An explicit formula for an arithmetic sequence allows you to find the nth term of the sequence.

Given recursive rule:

[tex]\begin{cases} \sf a_n=a_{n-1}+4\\ \sf a_1=14\end{cases}[/tex]

Therefore, the next two values in the sequence are:

[tex]\begin{aligned} \implies \sf a_2 & = \sf a_{2-1}+4\\& = \sf a_1+4\\& = \sf 14+4\\& = \sf 18\end{aligned}[/tex]

[tex]\begin{aligned} \implies \sf a_3 & =\sf a_{3-1}+4\\& = \sf a_2+4\\& = \sf 18+4\\& = \sf 22\end{aligned}[/tex]

Explicit formula

  [tex]\sf a_n=a+(n-1)d[/tex]

where:

[tex]\sf a_n[/tex] is the nth terma is the first termn is the number of the termd is the common difference between terms

Given:

[tex]\sf a = a_1=14[/tex][tex]\sf d = 22-18=4[/tex]

Substituting the given values into the formula:

[tex]\sf \implies a_n=14+(n-1)4[/tex]

[tex]\sf \implies a_n=14+4n-4[/tex]

[tex]\sf \implies a_n=4n+10[/tex]

Therefore, the explicit rule in simplified form for the sequence is:

[tex]\sf a_n=4n+10[/tex]

Learn more about arithmetic sequences here:

https://brainly.com/question/27806372

https://brainly.com/question/27783089

Simplify the expression by
combining like terms:
-3a + 1 + a +5
Enter the number that belongs in the green box.
[? ]a +[ ]
Enter

Answers

Answer:

-2a+6

Solution:Let's simplify this expression by combining like terms.The like terms are-3a, a1, 5Combine them:-3a+a+1+5-2a+6

Hope it helps.

Do comment if you have any query.

15<96–q
what is the value of q

Answers

Answer: q < 81

Step-by-step explanation:

isolate q

15 < 96 - q

-81 < -q

divide by negative 1 but flip inequality because you are dividing by a negative

81 > q so

q < 81

Use the product-to-sum formula to convert the expression to a sum or difference. Simplify where is possible. ​

Answers

Answer:

sin3t*cos(s)*cos(t)+sin3t*sin(s)*sin(t).

Step-by-step explanation:

sin3t*cos(s-t);

1) cos(s-t)=cos(s)cost+sin(s)sint; then

2) sin3t*cos(s-t)=sin3t*cos(s)*cos(t)+sin3t*sin(s)*sin(t).

Find the perimeter of the figure to the nearest hundredth.




perimeter: about

ft

Answers

The answer is ; 36.85

Given that Cos0=5/13,find a)Tan0,b)Sin0,c)Sec0,d)Co sec0,e)Cot0,​

Answers

Step-by-step explanation:

cos 0=5/13. B/H

p=√h2 - b2

= √13 square -5 square

=√169 -25

=√144

=12 Ans

Tan0=p/b =12/5. , sin0=p/h =12/13,. sec0= h/b =13/5 ,. Co sec0 =h/p =13/12 , cot0 =b/p=5/12

Follow me for more knowledge

The value of the expression in standard nation is ….. of( 0.00032)(5.2 times 10^6) divided by 6.4 times 10^5

Answers

Answer:

The answer is 0.0026

Step-by-step explanation:

0.00032 x 5200000 = 1664

1664 divided by 640000 is 0.0026

In what fraction of their games did Darnel's team score 2 or more runs?

Answers

Answer:

0.75 or 3/4

Step-by-step explanation:

According to the given box plot, the 25% point matches the number 2.

It means the rest of the scores are 2 or more runs:

100% - 25% = 75% = 0.75 = 3/4 of all the runs

A student is interested in the depth of the water off the
end of the local pier. Starting at midnight, he measures
the depth of the water every three hours for an entire
day and records the results in the table.
The equation of the least-squares regression line is
9 = 13.0 -0.259x, where y is the depth of the water
and x is the number of hours past midnight. Which
shows the residual plot?

For edge

Answers

The residual plot regarding the depth of the water is the difference between the observed response and the fitted response values.

What is a residual plot?

Your information is incomplete. Therefore, an overview of a residual plot will be given. A residual plot is a graph that shows the residual on the vertical axis while the independent variable is on the horizontal axis.

Here, the equation of the least-squares regression line is 9 = 13.0 -0.259x, where y is the depth of the water and x is the number of hours past midnight.

In this case, the residual plot regarding the depth of the water is the difference between the observed response and the fitted response values.

Learn more about residual plot on:

https://brainly.com/question/3297603

Answer: C

Step-by-step explanation: Edge '23 Trust me

PLS HELPP- I NEED AN ANSWER ASAP BRAINLY WILL BE GIVEN~

Answers

x-9 and x+-9 are equal

Cual es la velocidad de un carro si su masa es de 1,2 toneladas y genera energía cinética de 905 J

Answers

Answer:

75 kilómetros por hora creo no estoy muy seguro

PLEASE HELP PLEASE PLEASE HELP

Answers

Answer: Choice D

Reason:

Choices A through C all result in 8/3 = 2.667 approximately

In contrast, choice D becomes 2/3 + 4/3 = (2+4)/3 = 6/3 = 2; showing that choice D is not equivalent to choices A through C.

Which of the following tables represent linear relationships?

Answers

Answer:

Table 2 and 3

Step-by-step explanation:

A linear relationship should show a straight line, showing that it's linear.

*View the attached graphs*

Hope this helps!

Help picture below problem 9

Answers

Answer:

i think the answer might be E.

the answer is A option that is Angle M

please answer fast and you get points

Answers

Answer:

[tex]\frac{3}{6}=\frac{3*4}{6*4}=\frac{12}{24}[/tex]

Step-by-step explanation:

How may twenty-fourths equal 3/6

Well, we know that 6 * 4 = 24

So, we will be multipying the numerator and denominator with 4/4:

[tex]\frac{3}{6}=\frac{3*4}{6*4}=\frac{12}{24}[/tex]

Therefore, twelve twenty-fourths (12/24) is equivalent to three-sixths (3/6)

Hope this helps!

Express the difference between 0.35 and 2/5 as a decimal​

Answers

Answer:

0.05

Explanation:

2/5 is as a decimal, 0.4
The difference between them is 0.05

can some one help me do this question
just give me e and f

Answers

Answer:

I believe the answer should be 90:90:180. I may be wrong.

If 25 workers can complete a work in 48 days, then in how many days 20 workers will complete the same work?​

Answers

Answer:

heya! ^^

given that ,

25 workers together complete a certain piece of work in 48 days.

here , we've to find the number of days in which 20 workers can complete the same work ~

_____________________________

so let's start ~

★ 25 workers complete the work in = 48 days

★ 1 worker will complete the work in = 25 × 48 days

now ,

29 workers will complete the work in =[tex] \frac{\cancel{25} \times 48} {\cancel{20}} \: \: days \\ \\ \dashrightarrow \: \frac{5 \times \cancel{48}}{\cancel{4}} \\ \\ \dashrightarrow \: 5 \times 12 \\ \\ \dashrightarrow \: 60 \: days[/tex]

hope helpful :D

Answer:

60 days

Step-by-step explanation:

Thing to Remember

Number of workers is inversely proportional to the number of days

Solving

25 men can do a certain amount of work in 48 days25 men is reduced to 20 men ⇒ x 4/5Therefore, no. of days = inverse of rate of workers x 48⇒ 5/4 x 48 = 5 x 12 = 60 days

To solve application problems using proportions
The ratio of weight on the moon to weight on Earth is 1:6. How much would a 174-pound person weigh on the moon?

Please show work and help please thank you

Answers

Step-by-step explanation:

[tex] \frac{1}{6} = \frac{x}{174} [/tex]

x = 174/6

= 29 pound person weight on the moon.

Choose the ratio that is equivalent to this one: 4/7

Answers

Answer:

4:7

Step-by-step explanation:

4:7 is the same as 4/7

last year a company made a profit of one and a quarter million dollars.Each year the company reinvests 1/3 of the profit How much of this profit eill they reinvest​

Answers

Answer:

$83,333

Step-by-step explanation:

1 000 000*1/4

250 000

250 000*1/3 = 83 333.33

you bought 4 jumbo cookies for $5. whats the cost per cookie?

Answers

Answer:

80 Cents for each jumbo cookie

Can somebody please help with 7 and 8

Answers

Answer:

Point Form:

(−4,−9)

Equation Form:

x=−4, y=−9

Step-by-step explanation:

I need this answer fast please factorise the following 16gh2 – 8hi + 24h =

Answers

Answer: 8h(2gh - i + 3)

Step-by-step explanation:

factorise 8 out as 8 is a comon factor of 16, 8 and 24

factorise h out together with 8 because all of them have h

Please Expand the following y( y + 2)

Answers

Answer:

[tex]y^{2} + 2y[/tex]

Step-by-step explanation:

y times y is [tex]y^{2}[/tex]

2 times y is 2y

Simplify the polynomial then evaluate for x=-1 3x^2-4+2x-1+x^2

Answers

Answer:

-3

Step-by-step explanation:

Simplified polynomial: 4x^2 + 2x - 5

Plug in -1: 4(-1)^2 + 2(-1) - 5

= -3

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