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
Inessa [10]
3 years ago
11

Solve quadratic formula x-2x-15=0 the first x is squared

Mathematics
2 answers:
solniwko [45]3 years ago
8 0
x^2-2x-15=0\\
x^2-5x+3x-15=0\\
x(x-5)+3(x-5)=0\\
(x+3)(x-5)=0\\
x=-3 \vee x=5

Oduvanchick [21]3 years ago
6 0
You said that  x² - 2x - 15 = 0 .

You could factor the left side:

(x + 3) (x - 5) = 0

This equation is true if either of the factors is zero.

First factor:
x + 3 = 0
<u>x = -3</u>

Second factor:
x - 5 = 0
<u>x = 5</u>



You might be interested in
What is simplify 5+3-9
sergij07 [2.7K]

Answer:

-1

Step-by-step explanation:

first 5+3=8

8-9=-1

6 0
2 years ago
Please help! Important
guapka [62]
Add the two angles and set them equal to 180, them solve for x
3 0
3 years ago
Read 2 more answers
Someone please answer this and try hard. I selected the highest amount of points to give. It was 90, but it doesn't always come
azamat
Volume of a cylinder = PI x r^2 x H

r = 4 so r^2 = 4^2 = 16

h = 3

Volume = 3.14 x 16 x 3 = 150.72 ft^3

 it doesn't say how to round the answer so you may need to round it

5 0
3 years ago
Read 2 more answers
The principal amount, $4200, earns 3.6% interest compounded monthly.
svlad2 [7]

Answer:

a)

A\:=\:P\left(1\:+\:\frac{r}{n}\right)^{nt}

b)

The total amount accrued, principal plus interest,  from compound interest on an original principal of  $ 4,200.00 at a rate of 3.6% per year  compounded 12 times per year  over 10 years is $5667.28.

Step-by-step explanation:

a. Write the function that represents the value of the account at any time, t.

The function that represents the value of the account at any time, t

A\:=\:P\left(1\:+\:\frac{r}{n}\right)^{nt}

where

P represents the principal amount

r represents Annual Rate

n represents the number of compounding periods per unit t, at the end of each period

t represents the time Involve

b) What will the value be after 10 years?

Given

The principal amount  P = $4200

Annual Rate r = 3.6% = 3.6/100 = 0.036

Compounded monthly = n = 12

Time Period = t

To Determine:

The total amount A = ?

Using the formula

A\:=\:P\left(1\:+\:\frac{r}{n}\right)^{nt}

substituting the values

A\:=\:4200\left(1\:+\:\frac{0.003}{12}\right)^{\left(12\right)\left(10\right)}

\:A\:=\:4200\left(1.0025\right)^{120}

A=5667.28 $

Therefore, the total amount accrued, principal plus interest,  from compound interest on an original principal of  $ 4,200.00 at a rate of 3.6% per year  compounded 12 times per year  over 10 years is $5667.28.

6 0
3 years ago
( show your work ) Find the total cost of 6 puppies if each pull-ups coast $250
yKpoI14uk [10]

Answer: $1500

Step-by-step explanation:

<u>Given information</u>

Number of puppies = 6

Cost of each puppy = $250

<u>Given expression deducted from the question</u>

Total cost = number of puppies × cost of each

<u>Substitute values into the expression</u>

Total cost = 6 × 250

<u>Simplify by multiplication</u>

Total cost = \boxed{1500}

Hope this helps!! :)

Please let me know if you have any questions

3 0
3 years ago
Read 2 more answers
Other questions:
  • Can someone help me?
    5·2 answers
  • How to share an circle pizza with 12 people.
    10·2 answers
  • Which phrase accurately describes a distribution that's bell-shaped but not symmetric?
    15·1 answer
  • If a square has side lenght 3m, than its perimeter is 12m.
    5·1 answer
  • 2. Another wooden plank is leaning against an outside wall of a building. The bottom of the plank is 9 ft from the wall. The len
    8·1 answer
  • Which unit would you use to measure the amount of water in a bathtub?
    7·1 answer
  • The life of a semiconductor laser at a constant power is normally distributed with a mean of 7,000 hours and a standard deviatio
    8·1 answer
  • 10.
    6·1 answer
  • A clothing store is offering two coupons. one is for $50 off your purchase and the other is for 30% off your purchase. If the to
    11·1 answer
  • Please help me, I’ll mark you ask brainliest:-) !!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!