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3 years ago

Perform the induced operation (-7x+1)+(- 2x2 + 7x + 8) =

Mathematics

1 answer:

eimsori [14]3 years ago

8 0

Answer:

-2 $x^{2}$ + 9

Step-by-step explanation:

0 $x^{2}$ + (-7x) + 1

+ -2 $x^{2}$ + 7x + 8

-2 $x^{2}$ + 0x + 9

-2 $x^{2}$ + 9

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Write an algebraic expression for each verbal expression. 1 less than 8 times p

insens350 [35]

Answer:

8p - 1

Step-by-step explanation:

one less than = - 1

than 8 times p = 8p

put it together= 8p - 1

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3 years ago

A spa employs 54 people. Management wants to gather data about current and future services for clients. A random sample of 22 em

Igoryamba

Answer:

Step-by-step explanation:

i choose (c) because that the answer

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3 years ago

I need help putting correct answers in the yellow boxes.

olasank [31]

Answer:

-5 ± √5² - 4 · 1 · 4

2 · 1

Step-by-step explanation:

ax²+bx+c=0 (quadratic equation)

x= -b ± √b² - 4ac

a= 1

b= 5

c= 4

-5 ± √5² - 4 · 1 · 4

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7 0

1 year ago

Suppose a food scientist wants to determine whether two experimental preservatives result in different mean shelf lives for bana

melomori [17]

Answer:

The two sample t-test

Step-by-step explanation:

The appropriate test for thus is the two sample t test which is also known as the independent t test. This tests aims at determined whether there is a statistically significant difference between the means in two unrelated groups which in this context are a random sample with one type of preservative and another sample with another type of preservatives.

With this test, the researcher is able to compare the mean shelf lives of the bananas treated with the two different preservatives... The null hypothesis equalises the two means of the sample while the alternative does otherwise.

3 0

3 years ago

Someone pls help me I turn this in today the answer is there I just need to show work pls help me

dolphi86 [110]

Hello and Good Morning/Afternoon

Let's tale this problem step-by-step:

What does the problem want:

$\hookrightarrow \text{the unemployment compensation}$

Employment compensation =55% of the average of the last 26-week salary

$\hookrightarrow \text{Average of Natalia's salary} = (\text{all the salaries added up}) / (\text{number of weeks})\\\hookrightarrow \text{Average of Natalia's salary} = 18940 / 26 = 728.46 \text{ (Rounded down)}$

⇒ 55% of that average

$\hookrightarrow \frac{55}{100} *728.46 = 400.65$

Answer: $400.65

Hope that helps!

#LearnwithBrainly

5 0

1 year ago