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MrRa [10]
3 years ago
14

Distribute and simplify: 7(2x-4) + 2(3x+1)

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
8 0

7(2x - 4) + 2(3x + 1)   Distribute/multiply 7 into (2x - 4), and multiply 2 into (3x + 1)

14x - 28 + 6x + 2   Combine like terms

20x - 26

Your answer is B


4y^{2} -\frac{2x}{7} +2y

x = 7

y = 2

Plug in the numbers into the variables

4(2)^{2} -\frac{2(7)}{7} +2(2)

4(4) - 2 + 4

16 + 2

18


Your answer is D


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estaba previsto destinar 3/14 de partes de una finca a plazas de aparcamiento pero finalmente han destinado 3/4 de lo previsto a
JulsSmile [24]

Queremos ver que fracción de la finca se ha destinado a plazas de aparcamiento.

La solución es:

La fracción de la finca que se destina a plaas de aparcamiento es 3/56

Sabemos que originalmente se iba a destinar 3/14 del total de la finca a plazas de aparcamiento, pero finalmente se destino 3/4 de lo previsto a zonas ajardinadas.

Es decir, <u>se destino 3/4 de los 3/14 del total de la finca</u> a zonas ajardinadas, entonces <u>el 1/4 restante se dedico a plazas de aparcamiento</u>, esto da:

(1/4)*3/14  = 3/56

La fracción de la finca que se destina a plaas de aparcamiento es 3/56

Sí quieres aprender más, puedes leer:

brainly.com/question/16649102

8 0
3 years ago
1. Which expression shows 3 less than X?<br> А 3-х<br> cx - 3<br> в 3х
vova2212 [387]
X-3 is the expression that shows it
7 0
3 years ago
Read 2 more answers
Given: circle k(O), m∠P=95°, m∠J=110°, m∠LK=125°<br> Find: m∠PJ
IRINA_888 [86]

Answer:

The measure of the arc PJ is 75\°

Step-by-step explanation:

step 1

Find the measure of angle L

we know that

In a inscribed quadrilateral opposite angles are supplementary

so

m

we have

m

substitute

m

m

step 2

Find the measure of arc KJ

we know that

The inscribed angle measures half that of the arc comprising

so

m

substitute the values

95\°=\frac{1}{2}(125\°+arc\ KJ)

190\°=(125\°+arc\ KJ)

arc\ KJ=190\°-125\°=65\°

step 3

Find the measure of arc PJ

we know that

The inscribed angle measures half that of the arc comprising

so

m

substitute the values

70\°=\frac{1}{2}(65\°+arc\ PJ)

140\°=(65\°+arc\ PJ)

arc\ PJ=140\°-65\°=75\°

5 0
3 years ago
F (x) = 3x^2+ 5 x -14
elena-14-01-66 [18.8K]

Here is the answer

6 0
2 years ago
How many solutions does an equation have when you isolate the variable and it equals a constant?
OLEGan [10]

1 solution is available when variable equals a constant.

Answer: Option B.

<u>Explanation:</u>

You will be able to determine if an equation has one solution (which is when one variable equals one number), or if it has no solution (the two sides of the equation are not equal to each other) or infinite solutions (the two sides of the equation are identical).

The ordered pair that is the solution of both equations is the solution of the system. A system of two linear equations can have one solution, an infinite number of solutions, or no solution. If a consistent system has exactly one solution, it is independent.

3 0
3 years ago
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