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fredd [130]
3 years ago
14

Zack needs to divide these base-ten blocks into 3 equal groups.

Mathematics
1 answer:
Vinil7 [7]3 years ago
5 0
Can you show a picture so we can see? It asks for a model.
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If x2 + 6x + c = (x + d)2, then d
viktelen [127]

Answer:

d = 3

Step-by-step explanation:

Expand the right side and compare the coefficients of like terms

x² + 6x + c = x² + 2dx + d²

For the 2 sides to be equal then coefficients of like terms must be equal

compare coefficients of x- terms, then

2d = 6 ⇒ d = 3



8 0
3 years ago
Read 2 more answers
Can someone please help me please?
san4es73 [151]

Answer:

c

Step-by-step explanation:

5 0
3 years ago
Plz help ill give brainleist
sergij07 [2.7K]

Answer:

D

Step-by-step explanation:

there isn't much of a harsh trend, but the graph shows that generally when the unemployment is lower, the life expectancy is higher, and when the unemployment is higher, the life expectancy is lower.

3 0
3 years ago
The difference between the roots of the quadratic equation x^2−14x+q=0 is 6. Find q.
Advocard [28]

The value of q is 40

Step-by-step explanation:

In the quadratic equation ax² - bx + c = 0, where

  • a = 1
  • b is the sum of its two roots
  • c is the product of its two roots

Assume that the roots of the quadratic equations are x and y

∵ The quadratic equation is x² - 14x + q = 0

∴ a = 1 , b = 14 and c = q

∵ b is the sum of its two roots

∵ Its roots are x and y

∴ x + y = 14 ⇒ (1)

∵ The difference between the roots is 6

∴ x - y = 6 ⇒ (2)

Now we have a system of equation to solve it

Add equations (1) and (2)

∴ 2x = 20

- Divide both sides by 2

∴ x = 10

Substitute the value of x in equation (1) or (2) to find y

∵ 10 + y = 14

- Subtract 10 from both sides

∴ y = 4

∵ c is the product of the two roots

∴ c = 10 × 4 = 40

∵ c = q

∴ q = 40

The value of q is 40

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

6 0
4 years ago
Help please!!! 10 points
lidiya [134]

Answer:

E

Step-by-step explanation:

You can easily solve this by rearranging the ones that look alike. 7a^2-5a^2+10a-3a=5a^2+7a

7 0
3 years ago
Read 2 more answers
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