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Anon25 [30]
3 years ago
7

Solve x2 − 3x = −8. (2 points)

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
7 0
That is the answer:)

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Find the inverse of the function <br> F(x) = 5x + 10<br><br> F -1 (x) = ?
snow_tiger [21]
Answer is F-1(x)= x/5-2 it is x over 5 minus 2
3 0
4 years ago
Find the value of the angle θ rounded to 1 DP.<br><br> The diagram is not drawn accurately
ollegr [7]

Answer:

Find length opposite to 30deg

Opposite = tan(30)*42

= 24.2

Whole side = 24.2+10

Find angle of 0 + 30deg: (say x)

Tan(x) = 33.2/42

Arctan(0.79) = x

x = 38.3

The angle to find:

38.3-30:

8.3

The angle is 8.3deg.

8 0
3 years ago
You invest $5,000 into an account where interest compounds continuously at 3.5%. How long will it take your money to double? Rou
salantis [7]

Answer:

20 years

Step-by-step explanation:

<u>Continuous Compounding Formula</u>

\large \text{$ \sf A=Pe^{rt} $}

where:

  • A = Final amount
  • P = Principal amount
  • e = Euler's number (constant)
  • r = annual interest rate (in decimal form)
  • t = time (in years)

Given:

  • A = $10,000
  • P = $5,000
  • r = 3.5% = 0.035

Substitute the given values into the formula and solve for t:

\sf \implies 10000=5000e^{0.035t}

\sf \implies \dfrac{10000}{5000}=e^{0.035t}

\sf \implies 2=e^{0.035t}

\sf \implies \ln 2=\ln e^{0.035t}

\sf \implies \ln 2=0.035t\ln e

\sf \implies \ln 2=0.035t(1)

\sf \implies \ln 2=0.035t

\sf \implies t=\dfrac{\ln 2}{0.035}

\implies \sf t=19.80420516...

Therefore, it will take 20 years (to the nearest year) for the initial investment to double.

8 0
2 years ago
How many four-digit personal identification numbers (PIN) are possible if the PIN cannot begin or end with a 0 and the PIN must
Masteriza [31]
There would be 4500 combonations
4 0
3 years ago
Read 2 more answers
Mary pays $72 for sand. If the cost per pound is $0.45, how many pounds did she purchase?
Natali5045456 [20]

Answer:

<u>Mary purchased 160 pounds of sand</u>

Step-by-step explanation:

$72÷$0.45=160

<em>Make this brainiest if you felt this helped you the most have an awesome day or night!</em>

3 0
3 years ago
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