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
Aleksandr [31]
3 years ago
12

Find values of a and b that make the following equality into identity:

Mathematics
1 answer:
joja [24]3 years ago
6 0

Answer:

a = -2/5 and b = 2/5.

Step-by-step explanation:

Multiply  each term by (x + 3)(x - 2) :

2 ≡  a(x - 2) + b(x + 3)

Let x = 2:

2 ≡ 0 + 2b + 3b

b = 2/5.

Let x = -3:

2 ≡  a(-3-2) + 0

a = -2/5

You might be interested in
3.
Vitek1552 [10]
To solve this we are going to use the future value of annuity due formula: FV=(1+ \frac{r}{n} )*P[ \frac{(1+ \frac{r}{n})^{kt}-1 }{ \frac{r}{n} } ]
where
FV is the future value
P is the periodic deposit 
r is the interest rate in decimal form 
n is the number of times the interest is compounded per year
k is the number of deposits per year

We know for our problem that P=420 and t=15. To convert the interest rate to decimal form, we are going to divide the rate by 100%: r= \frac{10}{100} =0.1. Since Ruben makes the deposits every 6 months, k=2. The interest is compounded semiannually, so 2 times per year; therefore, k=2.
Lets replace the values in our formula:

FV=(1+ \frac{r}{n} )*P[ \frac{(1+ \frac{r}{n})^{kt}-1 }{ \frac{r}{n} } ]
FV=(1+ \frac{0.1}{2} )*420[ \frac{(1+ \frac{0.1}{2})^{(2)(15)}-1 }{ \frac{01}{2} } ]
FV=29299.53

We can conclude that the correct answer is <span>$29,299.53</span>
8 0
3 years ago
I need an answer first and correct answer will give brainliest!!!! At summer camp, campers were asked to name their favorite spo
dexar [7]
15/100*x=39
x=39*100/15
x= 260 is the total number of people who were asked
7 0
2 years ago
Read 2 more answers
I NEED HELP!!! PLZ HELP!!!!!!!!!
Digiron [165]

Answer:

30.06

Step-by-step explanation:

The question states WHAT DID THEY PAY BEFORE INSTALATION CHARGES.

So 30.06$

588.34-555.28=30.06

3 0
2 years ago
Please help me with this math question
Arturiano [62]

Answer:

145

Step-by-step explanation:

168-23 = 145

    i hope this helps :)

5 0
9 months ago
Read 2 more answers
Please Help ! Dilations
Darina [25.2K]

Answer:

Answer is C.

Step-by-step explanation:


4 0
3 years ago
Other questions:
  • Value of the expression 9.7+(- 5.4)
    9·2 answers
  • What additional information could be used to prove that the triangles are congruent using AAS or ASA? Check all that apply.
    9·2 answers
  • Help! Please Geometry
    14·1 answer
  • Grace order groceries worth $49.65. About how much should she spend for 12% home delivery charges?
    9·1 answer
  • George has opened a new store and he is monitoring its success closely.
    13·1 answer
  • Square root of 90 to the nearest tenth
    12·1 answer
  • Help pleasee last attempt
    5·1 answer
  • HEY THERE! PLEASE ANSWER THE MATH QUESTION IN THE PHOTO! THE CORRECT ANSWER WILL BE MARKED AS BRAINLIEST ,GET POINTS AND I WILL
    5·1 answer
  • The temperature in Greenland was -12°. For 4
    14·1 answer
  • 9.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!