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ladessa [460]
4 years ago
8

Could you help me with these?

Mathematics
1 answer:
Sati [7]4 years ago
8 0

Step-by-step explanation:

Molly should have multiplied three first so that it would have been

x + 6 + 3x + 12

4x + 18

Dylan did not add x to 5x

it should have been

6x - 12

Jose did not multiply 7 and -5

it should have been

x + 3 + 7x - 35

8x - 32

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Padgett made p pizzas.
malfutka [58]

Answer:

3p

Step-by-step explanation:

p=# of pizzas from Padgett

3p=# of pizzas from Joy

7 0
3 years ago
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Find the area of the shape.
-BARSIC- [3]

Answer:

12.56

Step-by-step explanation:

area of a circle is A=πr^2

radius is 2

a= 3.14 (2)^2

=3.14 x 4

=12.56

7 0
2 years ago
Simplify the expression. <br><br> 20 ÷ (4 – 2)
Arisa [49]
20 ÷ (4 – 2) Subtract 2 from 4. 20 ÷ 2 Divide Final Answer: 10
7 0
3 years ago
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Solving Expressions Analytically Consider the following equation: x3+4x2+4x+16=0. Solve for x. Your answer should be stored in a
Shalnov [3]

Answer:

List is {-2i, 2i, -4)

Step-by-step explanation:

This is a third order polynomial, so we expect three roots (solutions).

Note that we can factor this expression by grouping:

(x²)(x + 4) + (4)(x + 4) = 0, or

(x + 4)(x² + 4) = 0

The factor (x + 4) corresponds to the root/solution x = -4, and:

The other factor (x² + 4) corresponds to the roots/solutions x = 2i and x = -2i.

List is {-2i, 2i, -4)

5 0
4 years ago
Solve the system of linear equations by substitution.<br><br> y = 2x + 8<br> y = -2x
posledela

Answer:

(- 2, 4 )

Step-by-step explanation:

y = 2x + 8 → (1)

y = - 2x → (2)

substitute y = 2x + 8 into (2)

2x + 8 = - 2x ( add 2x to both sides )

4x + 8 = 0 ( subtract 8 from both sides )

4x = - 8 ( divide both sides by 4 )

x = - 2

substitute x = - 2 into (2)

y = - 2(- 2) = 4

solution is (- 2, 4 )

6 0
3 years ago
Read 2 more answers
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