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3 years ago

Help ples in class right now please hellp

Mathematics

1 answer:

WARRIOR [948]3 years ago

5 0

Answer:

i believe it is 25 for ginny

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What two digit number is three times the sum of its digits?

belka [17]

Answer is 27
2+7=9
9*3=27

4 0

4 years ago

Consider a situation in which P(X) = 4/5 and P(Y) = 1/4. If P(X and Y) is = 1/5, which best describes the events?

kirill [66]

The answer is C if im not mistaken

7 0

4 years ago

Read 2 more answers

Xavier is going to invest $3,900 and leave it in an account for 14 years. Assuming the interest is compounded daily, what intere

ozzi

Answer: the interest rate is 6%

Step-by-step explanation:

We would apply the formula for determining compound interest which is expressed as

A = P(1 + r/n)^nt

Where

A = total amount in the account at the end of t years

r represents the interest rate.

n represents the periodic interval at which it was compounded.

P represents the principal or initial amount deposited

From the information given,

P = $3900

A = $9200

t = 14 years

n = 365 because it was compounded 365 times in a year.

Therefore,

9200 = 3900(1 + r/365)^365 × 14

9200/3900 = (1 + 0.0027274r)^5110

2.359 = (1.0027274r)^5110

Taking log of both sides of the equation,it becomes

Log 2.359 = 5110 log (1 + 0.0027274r)

0.373 = 5110 log (1 + 0.0027274r)

0.373/5110 = log (1 + 0.0027274r)

0.000073 = log (1 + 0.0027274r)

Taking inverse log of both sides of the equation, it becomes

10^0.000073 = 10^log (1 + 0.0027274r)

1.000168 = 1 + 0.0027274r

0.0027274r = 1.000168 - 1

0.0027274r = 0.000168

r = 0.000168/0.0027274

r = 0.06

r = 0.06 × 100 = 6%

6 0

3 years ago

A line has a slope of 11 and passes through the point (2,4). PLSSSS HELPPP

krok68 [10]

Answer:

y=11x-18

Step-by-step explanation:

y=11x+b (b is the unknown y-int)

to find the y-int, substitute in (2, 4), and solve for b *substitute in 2 for x and 4 for y*

y=11x+b

4=11(2)+b

4=22+b

b=-18

the equation of the line:

y=11x-18

7 0

3 years ago

WILL MARK BRAINIEST!!1 PLZ HELP!25 points!!! The coordinate grid shows points A through K. What point is a solution to the syste

marishachu [46]

Answer:

A, C, D and K

Step-by-step explanation:

Inequalities:

y ≤ −2x + 10 and y >1/2x-2

<u>Finding zeros for the first inequality:</u>

x=0 ⇒ y= 10, point (0, 10)
y=0 ⇒ x= 5, point (5, 0)

Locating these 2 points and connecting to get the first line.

Space to the left of this line (as y≤ ) is the solution for this inequality, any points on this line are inclusive.

<u>Finding zeros for the second inequality:</u>

x=0 ⇒ y= -2, point (0, -2)
y= 0 ⇒ x= 4, point (4, 0)

Locating these points and connecting to get the second line.

Space above this line (as y > sign) is the solution for this inequality, any points on this line are not inclusive.

Now we have the space of intersection of the above inequalities.

So the points in same section are the solution.

They are:

Points A, C, D and K

See attached for explanation

7 0

4 years ago