1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fiesta28 [93]
2 years ago
5

10a²+4= -186 Very easy quick points

Mathematics
1 answer:
OlgaM077 [116]2 years ago
5 0

Answer:

please see explanation

Step-by-step explanation:

10a {}^{2}  + 4 =  - 186 \\ 10a {}^{2}  =  - 186 - 4 \\ 10a {}^{2}  =  - 190 \\ divide \: bothsides \: by \: 10 \\  \frac{10a {}^{2} }{10}  =   \frac{ - 190}{10}  \\ a { }^{2}  =  - 19 \\ square \: root \: bothsides \\    \sqrt{a {}^{2} }  =    \sqrt{ - 19}   \\ a =  - 1 \sqrt{19 }  \\ a =   + i \sqrt{19}  \: or \: a =  - i \sqrt{19}

You might be interested in
if 1 is added to the denominator of a fraction the fraction becomes 1/2.if 1is added to the numerator of the fraction ,the fract
saw5 [17]

Tricky but not crazy hard. You could use th x/y method where you turn it into a cross multiplication fiasco.

or you can try your guesses through what ever equals 1/2 when you add one to the denominator. the answer you are looking for is 2/3

2/3 + 1 for the numerator = 1.

2/3 + 1 for the denominator = 1/2.

6 0
3 years ago
Read 2 more answers
$5000 at 6% for 9 months what is the balance
Kay [80]
I think it's suppose to go

6% is .06 divided by 12 which is .005 times the number of months so in this case 9 so 5,000 times .005 times 9 which is 225 so 5,000 plus an interest of 225 adds up to 5,225
8 0
3 years ago
Read 2 more answers
What is the slope of the line y - 5 = -4(x - 8)?
galben [10]

Answer:

-4

Step-by-step explanation:

This looks like point-slope form, which I find personally hideous. Let's change it to slope-intercept form to ease my conscience. (remember that slope-intercept form is y=mx+b, where m=slope and b=y-intercept!)

y - 5 = -4(x-8)

y - 5 = -4x + 32

y = -4x + 37

It's in slope-intercept form now! And -4 looks to be our m.

<u>So the slope is -4.</u>

4 0
3 years ago
Read 2 more answers
2. Penny is 1/16 inch thick and there are now 500,000,000,000 pennies. How many miles high would the stack be? *Use the converte
Ilia_Sergeevich [38]

Answer:

447451 miles

Step-by-step explanation:

a mile is 5820 feet or 69840 inches. 500,000,000,000/16 and then divide that by 5820

3 0
2 years ago
.At a certain animal shelter, the ratio of puppies to adult dogs is 7 to 4. This week there are a total of55 dogs in the shelter
Advocard [28]

Answer:

There are 35 adult dogs and 20 puppies

<em></em>

Step-by-step explanation:

<em>Represent the puppies with P and the Adult dogs with A</em>

Given

A : P = 7 : 4

Dogs = 55

Required

Determine A and P

First, we need to sum the ratios;

Total = A + P

Total = 7 + 4

Total = 11

Adult Dogs is then calculated as follows;

A = \frac{A\ Ratio}{Total} * Dogs

A = \frac{7}{11} * 55

A = \frac{385}{11}

A = 35

Puppies is calculated by subtracting the number of adult dogs from the total

P = Dogs - Adult\ Dogs

P = 55 - 35

P = 20

<em>Hence;</em>

<em>There are 35 adult dogs and 20 puppies</em>

3 0
3 years ago
Other questions:
  • Select two ratios that are equivalent to 27:9​
    14·2 answers
  • 5x + 3 = 3x + 9 what is the value of x
    14·1 answer
  • Bob has burn 300 calories in the past hour he didn't goes home and he's a candy bar that is 300 calories true or false is it an
    6·1 answer
  • A teacher wants to see if a new unit on factoring is helping students learn. She has five randomly selected students take a pre-
    10·1 answer
  • A composite solid consists of a cube with edges of length 6cm and a square pyramid with base edges of length 6cm and height of 6
    5·1 answer
  • Add -4/y+12/y . Reduce, if possible.
    11·2 answers
  • The sum of the three numbers in 2003,two of the numbers are 814 and 519 what is the third number​
    6·2 answers
  • PLZZZZZZZZZZZZZZZZZZZZZZZZZ HELP ME OUT<br><br> What are the like terms in the expression below
    12·1 answer
  • In the right ΔABC, AN is the altitude to the hypotenuse. Find BN, AN, and AC, if AB=2√5 in and NC= 1 in.
    8·1 answer
  • Using the standard 28/36 guidelines, what is the maximum mortgage payment allowed for someone with an annual salary of $82,175?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!