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Tamiku [17]
3 years ago
11

Help wanted and needed I’m not good at math

Mathematics
1 answer:
stealth61 [152]3 years ago
8 0

Answer:

-  \frac{7}{8}

Step-by-step explanation:

Line d slope is 8/7, therefore the perpendicular is -7/8

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Evaluate using factors:(7.62)² - (2.38)²​?
Hoochie [10]

Answer:

52.4.

Step-by-step explanation:

This is the difference of 2 squares:

a^2 - b^2 = (a - b)(a + b)

(7.62^2 - (2.38)^2

= (7.62 - 2.38)(7.62 + 2.38)

= 5.24 * 10

= 52.4

8 0
3 years ago
Read 2 more answers
100 POINTS! I REALLY NEED TO GET THIS CORRECT! Factor the quadratic trinomial.
Assoli18 [71]

The factors of the equation x^2-3x-18 are (x-6)(x+3)

Step-by-step explanation:

We need to factor the quadratic trinomial. x^2-3x-18

We will do factorization by braking the middle term such that adding those number we get middle term (-3x) and multiplying those numbers we get (-18x^2)

Solving:

x^2-3x-18\\=x^2-6x+3x-18\\=x(x-6)+3(x-6)\\=(x-6)(x+3)

So, the factors of the equation x^2-3x-18 are (x-6)(x+3)

Keywords: Finding Factors of Quadratic Equation

Learn more about Finding Factors of Quadratic Equation at:

  • brainly.com/question/10771256
  • brainly.com/question/1332667
  • brainly.com/question/1357167

#learnwithBrainly

8 0
4 years ago
Are my answers correct?
Alenkasestr [34]
Yes because 100+100+120=320
360-320=40
X=40
7 0
4 years ago
Under certain conditions, the number of bacteria present in a colony is approximated by f(t) = Age 0.023t, where t is in minutes
AleksandrR [38]

Answer:

  • 5 min: 3,029,058
  • 10 min: 3,398,220
  • 60 min: 10,732,234

Step-by-step explanation:

The given function is evaluated by substituting the given values of t. This requires using the exponential function of your calculator with a base of 'e'. Many calculators have that value built in, or have an e^x function (often associated with the Ln function).

__

<h3>5 minutes</h3>

The number of bacteria present after 5 minutes is about ...

  f(5) = 2.7×10^6×e^(0.023×5) ≈ 3,029,058

<h3>10 minutes</h3>

The number of bacteria present after 10 minutes is about ...

  f(10) = 2.7×10^6×e^(0.023×10) ≈ 3,398,220

<h3>60 minutes</h3>

The number of bacteria present after 60 minutes is about ...

  f(60) = 2.7×10^6×e^(0.023×60) ≈ 10,732,234

8 0
3 years ago
Jane gets 17/20 apples. Lemm wants the same amount but a different way. How much should she get and what strategy should she use
Elena-2011 [213]

Answer:

34/40

????????

Step-by-step explanation:

you multiply them both by two??

6 0
3 years ago
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