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andrew-mc [135]
3 years ago
11

(2.5x-9)+6x=-7

Mathematics
2 answers:
eimsori [14]3 years ago
6 0
1. 32/17 or 1.88235
2. X= 1
3. X = -3
4. X = 10
Rzqust [24]3 years ago
3 0

Answer:

first one: x=0.23529411

second one: x=-1

3rd one: x=-3

4th one: x=10

Step-by-step explanation:

i hope this helped but i use (math. way.)

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Andreyy89
 "x = 2; a = 5; b = 3" A 5 inch tall bamboo shoot doubles in height every 3 days. If the equation y=ab^x, where x is the number of doubling periods, represents the height of the bamboo shoot.
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4 years ago
Which decimal is between √ 85 and √ 86<br><br>a)9.15<br>b)9.2<br>c)9.25<br>d)9.3​
mina [271]

Answer:

c

Step-by-step explanation:

7 0
3 years ago
How do you solve this equation?
Natasha2012 [34]

Answer:

5 \sqrt{2}

= 7.071067812

Step-by-step explanation:

hope this helps

8 0
2 years ago
10. Explain why log328 is between 3 and 4.
maw [93]

Answer:

See explanation.

(Before continuing reading, I took the base to be 3. Please tell me if you didn't want the base to be 3.)

Step-by-step explanation:

I assume 3 is suppose to be the base. Let's list some values that can be written as 3 to some integer.

3^0=1

3^1=3

3^2=9

3^3=27

3^4=81

3^5=243

......

I could have also did negative integer powers, but this is all I really need to convince you that log_3(28) is between 3 and 4.

log_3(28) means the value x such that 3^x=28.

Since 28 is between 27 and 81 in my list above, that means 3^x is between 3^3 and 3^4. This means that x is a value between 3 and 4.

8 0
3 years ago
Find the magnitude of −1−5i
ladessa [460]

The magnitude of -1-5i is √26.

<h3>What is the magnitude of -1-5i ?</h3>

Given the complex expression; -1 - 5i

To find the magnitude, we use the formula;

| a+bi | = √[ a² + b² ]

  • a = -1
  • b = -5

| a+bi | = √[ a² + b² ]

| -1-5i | = √[ (-1)² + (-5)² ]

| -1-5i | = √[ 1 + 25 ]

| -1-5i | = √26

Therefore, the magnitude of -1-5i is √26.

Learn more about magnitudes here: brainly.com/question/18152189

#SPJ1

8 0
2 years ago
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