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Elena L [17]
3 years ago
10

Write the answer as a polynomial in descending powers of x. Please show all work.

Mathematics
1 answer:
NemiM [27]3 years ago
6 0
I am assuming you are supposed to find the area of the shaded rectangle? If so then we must subtract the area of the smaller rectangle from the larger rectangle, so:

(x+9)(x+3) - ((x+1)(x+5))
= x^2 + 12x + 27 - (x^2 + 6x + 5)
= 6x + 22
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___H2 + ___Br2 → ___HBr
Vaselesa [24]

Answer:H2+Br2-->2HBr

Step-by-step explanation:

The amount of atoms on the left side must be equal to the amount of atoms on the right side for each element.

On the left you got 2xH and 2xBr.

This means you must have the same amount on the right.

2HBr =2xH + 2xBr

3 0
3 years ago
HELP ASAP PLEASE.
ValentinkaMS [17]

Answer:

pls give brainlist

Step-by-step explanation:

a. \frac{50 blocks (L)}{9 blocks(W)\\}  50 x 9 = 450. A=450

b. I can scale the unit rate of the area given above and largen the area of the map. Ex. \frac{7}{3}=\frac{21}{6} <---(scaled by 2)

Then we can enlarge it however we want so,

\frac{21}{6} = \frac{42}{12}  <--(scaled by 2 once more)

If the statement above is true then we can scale times 4.

\frac{7}{3}= \frac{42}{12}\\ <---(scaled by 4)

A= \frac{42}{12\\}

all i can give u at the moment , if u go on M a t h w a y it can help

5 0
2 years ago
Read 2 more answers
Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen people ans
vladimir2022 [97]

Answer:

There is no following,  we have data of all the people

Step-by-step explanation:

There where Sixty-five salespersons asked and the if we add all the persons that where asked  it is the same.  So there is no following

Fourteen people answered that they generally sell two cars; 14

nineteen generally sell three cars; 19

twelve generally sell four cars; 12

nine generally sell five cars; 9

eleven generally sell six cars 11

Adding  14+19+12+9+11=65 persons

8 0
3 years ago
List the ordered pairs and determine whether or not this is a function
Ahat [919]
The ordered pairs are (1,-1) (1,-2) (2,-3) (2,-4).

This is not a function because in order to be a function, every x value needs to have one and only one y value. You can see here that the x values have two y values, so it is not a function.
5 0
2 years ago
What is the solution to the system of equations below? y = negative one-third x + 9 and y = two-thirds x minus 12 (21, 2) (21, –
lora16 [44]

Answer:

(21, 2 )

Step-by-step explanation:

Given the 2 equations

y = - \frac{1}{3} x + 9 → (1)

y = \frac{2}{3} x - 12 → (2)

Substitute (2) into (1)

\frac{2}{3} x - 12 = - \frac{1}{3} x + 9 ( add \frac{1}{3} x to both sides )

x - 12 = 9 ( add 12 to both sides )

x = 21

Substitute x = 21 into either of the 2 equations and evaluate for y

Substituting into (2)

y = \frac{2}{3} × 21 - 12 = 14 - 12 = 2

Solution is (21, 2 )

6 0
3 years ago
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