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Pani-rosa [81]
2 years ago
10

Tarea: Expresiones Algebraicas Instrucciones: Evalúa las siguientes expresiones algebraicas con la información dada. Recuerda in

cluir el proceso. (30 puntos) Evalúa las siguientes expresiones algebraicas si a = 3, b = -2 yc = 5. 1
2a + 3b

-3c + 4b






​
Mathematics
1 answer:
Ainat [17]2 years ago
7 0

Answer:

-23.3

Step-by-step explanation:

Given:

a = 3, b = -2, c = 5. 1

Equation;

2a + 3b   - 3c + 4b

Find:

Solution

Computation:

2a + 3b   - 3c + 4b

2(3) + 3(-2)   - 3(5.1) + 4(-2)

6 - 6 - 15.3 - 8

-23.3

​

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How do I solve this?
snow_tiger [21]

Answer:

B

Step-by-step explanation:

it means we assume that the progression between 2 interval points is linear (a straight line from the begin of the interval to the end of the interval).

so, a length of 9.5 in falls into the interval [9, 11].

in this interval we see that the change rate is (21 - 11)/(11 - 9) = 10/2 = 5/1

that means for every inch longer we expect 5 oz more.

the line equation there is

y = 5x + b

11 = 5×9 + b

11 = 45 + b

-34 = b

so, the line is

y = 5x - 34

for x = 9.5

y = 5×9.5 - 34 = 47.5 - 34 = 13.5 oz

B is with 13.4 the closest right answer.

8 0
2 years ago
Factor the common factor out of -56x4 + 16x2 + 16x
evablogger [386]

Answer:

The common factor is 8x or -8x ( I forgot if the first number needs to positive or not.

Step-by-step explanation:

-8x(7x^3-2x-2)

or

8x(-7x^3+2x+2)

Hope this is what you are looking for?

5 0
3 years ago
Read 2 more answers
A jeweler had a fixed amount of gold to make bracelets and necklaces. The amount of gold in each bracelet is 6 grams and the amo
nikitadnepr [17]

Answer:

The jeweler made 11 bracelets and 7 necklaces.

Step-by-step explanation:

Given that a jeweler had a fixed amount of gold to make bracelets and necklaces, and the amount of gold in each bracelet is 6 grams and the amount of gold in each necklace is 16 grams, knowing that the jeweler used 178 grams of gold and made 7 more necklaces than bracelets, to determine a system of equations that could be used to determine the number of bracelets made and the number of necklaces made, the following mathematical reasoning should be considered:

(16 - 6) x 7 = 70

178 - 70 = 108

108/6 = 18

18 - 7 = 11

(11 x 6) + (7 x 16) = X

66 + 112 = X

178 = X

Thus, the jeweler made 11 bracelets and 7 necklaces.

4 0
3 years ago
Can someone please help
irina1246 [14]

Answer:

134.04 cm³ (rounded to tenths)

Step-by-step explanation:

The radius(r) is 4 cm

The height(h) is 8 cm

Using the equation and plugging in the values, you get

\frac{\pi *4^{2}*8 }{3} = 134.0412866

3 0
3 years ago
Sole for a.
Kipish [7]

Answer:

There are no solutions.

D) no solution

7 0
2 years ago
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