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2 years ago

( 2 x - 3 ) ( 7 x + 4) polynomials

Mathematics

1 answer:

Taya2010 [7]2 years ago

6 0

Answer:

14x-12

Step-by-step explanation:

Simplify (2x-3)(7x+4).

Expand the brackets. Remember brackets mean to multiply.

We multiply the 2x and the 7x to get 14x and we multiply the -3 by 4 to get -12 as shown below;

(2x-3)(7x+4)

14x-12

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Find the solution of the system of equations. 7x -- 8y = -23 7x – 7y = -14 (?,?)

gtnhenbr [62]

Answer:

(7,9)

Step-by-step explanation:

6 0

2 years ago

Question 2 In the fall, a community service club sold 10 shirts and 20 hats for a total of $490. In the spring, the club sold 20

Stells [14]

To answer the question above, we let s be the cost of a shirt and h be the cost of each hat such that the equations that would best represent the given are:
10s + 20h = 490
20s + 30h = 860
The system of equations is the answer to the first question and the values of s and h are $25 and $12, respectively.

8 0

3 years ago

If f(x) = -5, then f(-3)=

vitfil [10]

Answer:

f(-3)= -5

g(4)= 7

Step-by-step explanation:

here f(x)= -5, clearly it's not depending on 'x' ,so it will have same value,for all x

i.e, f(-3) is also -5

and, g(x)=2x-1

to get g(4) put x=4 in 2x-1

i.e, (2×4)-1 =7

✌️:)

7 0

3 years ago

PLEASE HELP ME QUICK!!

navik [9.2K]

Answer:

Step-by-step explanation:

44.1^2-33^2=855.81

sqrt of 855.85 = 29.25423046

round to the nearest tenth to get 29.3

3 0

2 years ago

Zoey made 6 1/2 cups of trail mix for a camping trip. She wants to divide the trail mix into 3/4 cup of servings. Twelve people

AlekseyPX

Answer:

Step-by-step explanation:

Given that:

Total number of cups of trail mix available for camping trip = $6\frac{1}{2}$

Amount of one serving contains = $\frac{3}{4}$ cups

Number of people at the trip = 12

To find:

Whether each person will be able to get the servings?

Solution:

Here, we can find the total number of servings by dividing the total number of cups of trail mix with the amount of one serving.

First of all, let us convert the mixed fraction into fractional number.

$6\dfrac{1}{2} = \dfrac{6\times 2+1}{2} = \dfrac{13}{2}$

Therefore, total number of servings available as per the given quantities:

$\dfrac{\frac{13}2}{\frac{3}4}\\\Rightarrow \dfrac{13\times 4}{2\times 3} \\\Rightarrow \dfrac{26}{3}\\\Rightarrow \approx 8$

So, With this type of servings Zoey will be able to serve only 8 people.

Therefore, there is not enough servings.

7 0

2 years ago