Can someone explain to me why I have to make the + symbol a - when the question asks 7a-(3+8a)?

Answer:

I come here to get answers for my homework and help other people

Plzz give me brainliest, i really need it to level up

Answer:

we answer each others questions and have fun !!

Answer:

Step-by-step explanation:

Answer:

mode is 2

Step-by-step explanation:

the mode is the value that occurs most often in the data set , then

mode = 2

[tex]\qquad \textit{Amount for Exponential Decay} \\\\ A=P(1 - r)^t\qquad \begin{cases} A=\textit{current amount}\\ P=\textit{initial amount}\dotfill &10250\\ r=rate\to 5\%\to \frac{5}{100}\dotfill &0.05\\ t=\textit{elapsed time}\dotfill &9\\ \end{cases} \\\\\\ A=10250(1 - 0.05)^{9}\implies A=10250(0.95)^9\implies A\approx 6460[/tex]

Answer:

The range is 0-25 feet

Step-by-step explanation:

Mathematically, when we are talking of the range, we are simply referring to the values at the boundaries.

This refers to the y-axis values. That is the values of the dependent variable

If we are to plot the graph, we will have the time on the x-axis while the amount of time spent in air would be on the y-axis

The base height is from the ground which is marked 0 feet to a maximum height of 25 feet

So the range in the context of this problem is 0-25 feet

Answer:

I hope this is what you're looking for. Good luck.

Step-by-step explanation:

Answer:

  x² +2x -3 = 0

Step-by-step explanation:

Given the zeros of a quadratic function the factored form is easily found. There is a factor (x -p) for each zero x = p. Here, the factored form of the function is ...

  0 = (x -(-3))(x -1) = (x +3)(x -1)

In standard form, this is ...

  x(x -1) +3(x -1) = 0

  x² +2x -3 = 0 . . . . . . the terms have no common factors

Answer:

Let's find the unit rate first, I like to order my units:

_________ = ______ = ______________, so 3 patients per hour is the

-unit rate.

Now let's order them to equal x(unknown patients)/9(hours)

___________  =   __________ = 27 patients per 9 hours. So your answer

is 27 patients.

Answer:

27 patients

Step-by-step explanation:

18patients = 6 hours

18/6 = 3

each hour for 6 hours she attends to 3 patient

6 hours + 3 hours make up 9 hours

since for each hour she attended to three patients we would say

1 hr = 3 patients

1 hr = 3 patients

1 hr = 3 patients

Total: 3 hrs = 9 patients

18 patients + 9 patients = 27 patients

so for 9 hrs Katherine will visit 27 patients.

Thank you

please mark me brainliest

Answer:

65

Step-by-step explanation:

It’s 65 because 65+35=100 then u add 80 to get 180

The measure of the third angle in the triangle is 65°. The correct option is B.

One of the earliest areas of mathematics is geometry, along with arithmetic. It is concerned with spatial characteristics like the separation, shape, size, and relative placement of objects.

Given that Triangle P Q R. Angle Q is 80 degrees and angle P is 35 degrees. Triangle W X Y. Angle W is 35 degrees and angle X is 80 degrees.

The third angle will be calculated as:-

Angle = 180 - 80 - 35

Angle = 65

Therefore, the measure of the third angle in the triangle is 65°. The correct option is B.

To know more about geometry follow

https://brainly.com/question/15996146

#SPJ6

Answer:

Five pizzas and twenty five hamburgers.

Step-by-step explanation:

5 (pizzas) times 5 is 25. That would be the total amount of hamburgers, because 5×5=25

30 (total) - the 25 hamburgers= 5 pizzas

Hope this helps

Answer:

Pizza = x

Ham = 5x

x + 5x = 30

6x = 30

x = 5

pizza = 5

ham = 5x5 = 25

Step-by-step explanation:

hope its helps!

Hey there!

9) Answer: D. :---- (x +8)(x-8)

10) Answer: P. :------(x-2y)^2

11) Answer: D. :-----(2a+3b)*(2a-3b)

12) Answer: P. :-----(a+4b)^2

13) Answer: P. :-----(x-3)^2

14) Answer:. D. :----(5xy+9z)*(5xy-9z)

15) Answer: P. :-----(2a+1)^2

16)Answer: D. :---(4ab+5)*(4ab-5)

Answer:

The answer is a.

Step-by-step explanation:

Answer:

23cm

Step-by-step explanation:

to convert from millimetres to centimetres, you divide by 10.

10mm= 1cm.

so 230mm = 23cm.

Answer:

23 centimeter

Step-by-step explanation:

  10mm = 1cm

230mm = 23cm

Answer: 15 gallons

Step-by-step explanation:

Here you are going to want to set up a proportion. 918 miles per 27 gallons = 510 miles per x gallons

918/27 = 510/x

Cross multiply and you get 918x = 13770

and you get x = 15

Or you could do 918 miles / 27 gallons = 34 miles / gallon

and divide the 510 miles of distance by how many miles per gallon, so

510 / 34

15

Answer:

$17.53

Step-by-step explanation:

You know the total price of 22 copies was $365.66. To find the price of one copy, you divide 365.66 by 22 to get $17.53 per copy.

Answer:

17.53

Step-by-step explanation:

Answer:

y = 3x + 1

Step-by-step explanation:

m = ( 1 - 4 ) / ( 0 - 1 ) = 3

( 0 , 1 )

y - 1 = 3(x - 0)

y - 1 = 3x

y = 3x + 1

Answer:

y=3x+1

Step-by-step explanation:

Slope is (y2-y1)/(x2-x1)

therefore slope =

(1-4)/(0-1)

-3/-1

m=3

therefore the equation is

y-y1=m(x-x1)

y-4=3(x-1)

y-4=3x-3

Answer:

I believe its B

Step-by-step explanation:

Answer:

3/45

Step-by-step explanation:

the result of multiplying 45 with three is called the product does the product of 45 and 3 is as follows.

Answer:

3/45

Step-by-step explanation:

the result of multiplying 45 with three is called the product does the product of 45 and 3 is as follows

Answer:

2.73 for each sock i believe

Step-by-step explanation:

Answer:

59

Step-by-step explanation:

Answer:

the answer is b because perpendicular is when 2 line meet at a 90 degree angle

Answer:

a= 210% it will rain and b is 40%

Answer:

you could do like 110 length and 80 wide and that will give you a perimeter of 380 which is the same and a area of 8800 which is 400 higher than the original area

Answer:

Option A:  an exponential graph decreasing from the left and crossing the y axis at 0 comma 5

Step-by-step explanation:

It has to start with a y-intercept of 21 because f(x) or as another way of saying it, y, equals 21 and then the number has to halve itself and thats why its so steep in the beginning.  Hope this helps :)

Answer:

B

Step-by-step explanation:

(so that poeple know previos person messed up and said that in comments i didnt want any1 els to have that mistake.)

Answer: your pic is upside down XD

Step-by-step explanation:

resubmit the question

Step-by-step explanation:

f(x) = [tex]8^x[/tex]

look at it like this

y = [tex]8^x[/tex]

we need 1 down

down and up is the y line

down 1 means that when the line touches the y line it has to touch it at -1

so that would make the y intercept -1

do you know what to do from here

[tex]3\cos x=5\tan x\\\\3\cos x=5\cdot\dfrac{\sin x}{\cos x}\\\\3\cos^2 x=5\sin x\\\\3(1-\sin^2x)=5\sin x\\\\-3\sin^2x-5\sin x+3=0\\\\t=\sin x\qquad\qqaud t\in<-1, 1>\\\\-3t^2-5t+3=0\\\\3t^2+5t-3=0\quad\implies\quad a=3\,,\ b=5\,,\ c=-3\\\\t=\dfrac{-5\pm\sqrt{5^2-4\cdot3\cdot(-3)}}{2\cdot3}=\dfrac{-5\pm\sqrt{25+36}}{6}=\dfrac{-5\pm\sqrt{61}}{6}\\\\t_1=\dfrac{-5+\sqrt{61}}{6}\approx0.4684\ ,\qquad t_2=\dfrac{-5-\sqrt{61}}{6}\approx-2.136\notin<-1,\,1>[/tex]

[tex]\sin x=0.4684\quad\wedge\quad x\in(0^o,\ 360^o)\\\\x\approx28^o\qquad\qquad\vee\qquad x\approx152^o\\\\\\\sin x=0.4684\quad\wedge\quad x\in(0,\ 2\pi)\\\\x\approx0.4887\qquad\qquad\vee\qquad x\approx2.6529[/tex]