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Ilya [14]
2 years ago
8

What is the solution for the equation -2(×-20)=44-×​

Mathematics
1 answer:
choli [55]2 years ago
8 0

Answer:

x= -4

Step-by-step explanation:

Using BODMAS, bracket first, multiply all in the bracket with -2, getting the answer, collect like terms and the answer is gotten

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I need help with this please:/
ser-zykov [4K]
4.5
pi is about 3.14 and root 23 is about 4.8 - the only number between these values is 4.5
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2 years ago
Read 2 more answers
PLZ HELP, DUE TONIGHT!! Find the values of a and b such that f(x) is continuous at x=1
Sedaia [141]

Answer:

  • a = 2, b = -4

Step-by-step explanation:

<u>To make the given piecewise function continuous we need:</u>

  • ax² - b = 6 and 5ax + b = 6 at x = 1

<u>It gives us the system:</u>

  • a(1²) - b = 6 ⇒ a - b = 6
  • 5a(1) + b = 6 ⇒ 5a + b = 6

<u>Sum of the two:</u>

  • a - b + 5a + b = 6 + 6
  • 6a = 12
  • a = 2

<u>Then b is:</u>

  • 2 - b = 6
  • b = -4
6 0
3 years ago
The cost is 23$ when___coolers are produced
Savatey [412]

9514 1404 393

Answer:

  97

Step-by-step explanation:

We want to find x when C = 23.

  23 = 0.005x^2 -0.35x +10

  2600 = x^2 -70x . . . . . . subtract 10, multiply by 200

  2600 +35^2 = (x -35)^2 . . . . complete the square

  61.847 +35 = x . . . . . . . square root, add 35 (use the positive result only)

  x ≈ 97 . . . . rounded to integer

The cost is $23 when 97 coolers are produced.

5 0
3 years ago
What amount will an account have after 2 years if $2950 is invested at an annual rate of 8.4% compounded quarterly? Also, determ
ankoles [38]

The amount if $2950 is invested at an annual rate of 8.4% compounded quarterly is $3486

<h3>Compound interest</h3>

Compound interest is given by:

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

where t is the period, r is the rate, P is the initial amount, A is the final amount and n is the times compounded.

Given P = 2950, r = 0.084, n = 4, t = 2, hence:

A=2950(1+\frac{0.084}{4} )^{4*2}\\\\A=\$3486\\\\For \ r=0.078, A=3742,t=2,n=1:\\\\3742=P(1+\frac{0.078}{1} )^{1*2}\\\\P=\$3220

The amount if $2950 is invested at an annual rate of 8.4% compounded quarterly is $3486

Find out more on Compound interest at: brainly.com/question/24924853

3 0
2 years ago
Which of the quadratic functions has the narrowest graph?
torisob [31]
D cause if u graph it each point it moved up but on the x axis it stays the same which makes it narrower
6 0
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