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Luba_88 [7]
3 years ago
10

Gio is solving the quadratic equation by completing the square. 5x2 + 15x – 4 = 0 What should Gio do first?

Mathematics
1 answer:
sladkih [1.3K]3 years ago
4 0

Answer: add 4 on both sides

Step-by-step explanation:

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Find the area. Will mark brainliest.
Vinvika [58]

Answer:

Step-by-step explanation:

base b = 11 cm

Height h = 6 cm

Area=\frac{1}{2}bh\\\\=\frac{1}{2}*11*6\\

= 11 * 3

= 33 cm²

5 0
3 years ago
Read 2 more answers
A city has designed a survey to collect information about residents’ opinions about city services. Which of the following descri
Maslowich

Bias refers to scenarios which might affect the ability of a statistical experiment to generalize, hence affecting the validity of research. Non-response bias occurs when majority of subjects <em>fail to respond during a survey</em>. Hence, a likely scenario is ; <em>surveys were mailed to 500 people, and 200 of the surveys were completed and </em><em>returned</em><em>.</em><em> </em>

  • Non - response bias has to do with a situation whereby a large percentage of the selected samples from a population do not respond or fail to participate in the experiment or survey.

  • If 200 surveys were returned, then 300 of the sample participants did not respond. Which means <em>60% of the sample are non-responsive</em>.

Therefore, a scenario where <em>surveys were mailed to 500 people, and 200 of the surveys were completed and </em><em>returned</em><em> </em>exemplifies a non - response bias.

Learn more :brainly.com/question/18405415

6 0
3 years ago
the pta is ordering pizza for their next meeting. they plan to order 2 cheese pizzas for every 3 pepperoni pizzas they order. ho
vova2212 [387]
10 cheese pizzas

use  simple ratio, 3:2 (3 pepperoni for every 2 cheese)
to make the ratio bigger, we substitute the "3" pepperoni for "15" pepperoni. then take the new amount, 15/3 original, you get 5. then multiply the 2 original cheese pizzas by that 5, and you get 10 cheese pizza's. 

hope that helps

5 0
3 years ago
Which relation is a function? (look at image below)
Dimas [21]

Answer:

Bottom Right Graph (Absolute Value)

General Formulas and Concepts:

  • Vertical Line Test

Step-by-step explanation:

When we apply the VLT to the 4 different graphs, we see that the only graph that actually passes the VLT is the absolute value graph. Therefore, that is our answer (none of the other graphs pass the VLT).

5 0
3 years ago
Solve the equation for y.
finlep [7]

Step-by-step explanation:

8x - 9y = 11

8x = 9y + 11

8x - 11 = 9y

y = 8x/9 - 11/9

so, C is correct

3 0
2 years ago
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