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
Ksivusya [100]
3 years ago
11

(h+k)(2)=? (h-k)(3)=? 3h(2)+2k(3)=?

Mathematics
1 answer:
marusya05 [52]3 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

(h + k)(x) = h(x) + k(x), thus

h(x) + k(x)

= x² + 1 + x - 2 = x² + x - 1 , then

(h + k)(2) = 2² + 2 - 1 = 4 + 2 - 1 = 5

----------------------------------------------------

(h - k)(x) = h(x) - k(x), thus

h(x) - k(x)

= x² + 1 - (x - 2) = x² + 1 - x + 2 = x² - x + 3, then

(h - k)(3) = 3² - 3 + 3 = 9 - 3 + 3 = 9

-----------------------------------------------------

h(2) = 2² + 1 = 4 + 1 = 5

k(3) = 3 - 2 = 1

Thus

3h(2) + 2k(3)

= 3(5) + 2(1) = 15 + 2 = 17

You might be interested in
Mike has a large amount of chocolate spheres, each chocolate sphere having a radius of 2 inches.
USPshnik [31]

The value of the expression Z² + Q² is 4321

<h3>How to evaluate the expression?</h3>

The radius of the chocolate spheres is given as:

r = 2

The maximum number of chocolates that can fit in a spherical capsule is calculated as:

Max = R³/r³

Where:

R represents the radius of the sphere.

For the spherical capsule whose radius is 8 inches, we have:

Z = 8³/2³

Evaluate

Z = 64

For the spherical capsule whose radius is 5 inches, we have:

Q = 5³/2³

Evaluate

Q = 15.625

Remove decimal

Q = 15

So, we have:

Z² + Q² = 64² + 15²

Evaluate the exponent

Z² + Q² = 4096 + 225

Evaluate the sum

Z² + Q² = 4321

Hence, the value of Z² + Q² is 4321

Read more about volumes at:

brainly.com/question/1972490

#SPJ1

3 0
2 years ago
A proton moves along the x-axis with vx=1.0×107 m/s. As it passes the origin, what are the strength and direction of the magneti
vlada-n [284]

Answer:urrrrrrrr uhhhh figure out ok gosh

Step-by-step explanation:

7 0
4 years ago
Read 2 more answers
You need to mix 42 kilograms of mortar. Each kilogram of mortar mix requires 0.03 liters of water. How many liters of water do y
Yakvenalex [24]
42*.03 liters = <span>1.26 liters</span>
6 0
4 years ago
Read 2 more answers
Determine the modulus of each of the complex numbers in the matching pairs. List these moduli in order from smallest to largest.
slava [35]

Answer:

the modulus of a complex number z = a + bi is:

Izl= √(a²+b²)

The fact that n is complex does not mean that n doesn't has a real part, so we must write our numbers as:

m = 2 + 6i

n = a + bi

Im + nl = 3√10

√(a² + b²+ 2²+ 6²)= 3√10

√(a^2 + b^2 + 40) = 3√10

squaring both side

a²+b²+40 = 3^2*10 = 9*10 =90

a²+b²= 90 - 40

a²+b²=50

So,

|n|=√(a^2 + b^2) = √50

The modulus of n must be equal to the square root of 50.

now

values a and b such

a^2 + b^2 = 50.

for example, a = 5 and b = 5

5²+5²=25+25= 50

Then a possible value for n is:

n = 5+5i

7 0
3 years ago
The sum of Randy’s age and Mike’s age is 41. The difference of their ages is 7. Mike is older than Randy.
inysia [295]

Answer: 41-7=m

Mike is 34 yrs

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • When combining do u add or multiplty
    10·2 answers
  • Find the slope of a line passing through (1,2) and (3,5)
    13·1 answer
  • <img src="https://tex.z-dn.net/?f=2yd%5E%7B2%7D%20%20to%20in%5E%7B2%7D" id="TexFormula1" title="2yd^{2} to in^{2}" alt="2yd^{2}
    10·1 answer
  • What is the result of subtracting the polynomial (X2 + 3x) from the<br> polynomial (-2X + 4X2 +5)?
    7·1 answer
  • 7x^4 - 14x^3 - 28x
    12·2 answers
  • The rotor of an electric motor has rotational inertia Im = 7.17 x 10-3 kg·m2 about its central axis. The motor is used to change
    13·1 answer
  • The math score for ten of Mrs. Moore's students are shown below. How many students made a score of more than 69 but less than 90
    6·1 answer
  • Someone please help!!
    9·2 answers
  • Saginosed
    10·1 answer
  • Can anyone help me with this one
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!