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2 years ago

PLEASE HELP ME ASAP BECAUSE I AM SLOWLY LOSING MY MIND-

Mathematics

2 answers:

lyudmila [28]2 years ago

6 0

Answer:

It is A. 115º since it is the only coherent angle. The other angles are not widely used.

Blababa [14]2 years ago

3 0

Answer:

35 + 80 = 115

180 - 115 = 65

plzz brainliest........

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Use cubes. color and draw to show a way to take apart 7.

Ray Of Light [21]

What do you mean
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7 0

3 years ago

The probability distribution for a<br> random variable x is given in the table.

Hoochie [10]

Answer: 0.79

Step-by-step explanation:

I will suppose that this is not a continuos probability, as the individual probabilites add up to 100%.

If you want to obtain the probability that x ≤ 0, then you need to add the probability for the cases x= 0, x = -1, x = -2 .... etc

This is:

x = 0, p = .16

x = -2, p = .33

x = -3, p = .13

x = -5, p = .17

Then, the probability where x takes a negative value or zero {-5, -3, -2, 0} is:

P = 0.16 + 0.33 + 0.13 + 0.17 = 0.79

7 0

2 years ago

In △ABC, point D∈AC

Maslowich

<h3>Answer:</h3>

ABDC = 6 in²
AABD = 8 in²
AABC = 14 in²

<h3>Explanation:</h3>

A diagram can be helpful.

When triangles have the same altitude, their areas are proportional to their base lengths.

The altitude from D to line BC is the same for triangles BDC and EDC. The base lengths of these triangles have the ratio ...

... BC : EC = (1+5) : 5 = 6 : 5

so ABDC will be 6/5 times AEDC.

... ABDC = (6/5)×(5 in²)

... ABDC = 6 in²

_____

The altitude from B to line AC is the same for triangles BDC and BDA, so their areas are proportional to their base lengths. That is ...

... AABD : ABDC = AD : DC = 4 : 3

so AABD will be 4/3 times ABDC.

... AABD = (4/3)×(6 in²)

... AABD = 8 in²

_____

Of course, AABC is the sum of the areas of the triangles that make it up:

... AABC = AABD + ABDC = 8 in² + 6 in²

... AABC = 14 in²

6 0

2 years ago

F(x) = 2(x+1)3 even or odd

Andrews [41]

Answer:

Neither even nor odd.

Step-by-step explanation:

f(x) = 2(x + 1)^3 = 2x^3 + 18x^2 + 54x + 54

f(-x) = -2x^3 + 18x^2 - 54x + 54

If it was even f(x) would be = f(-x) so it is NOT EVEN.

-f(x) = 2x^3 - 18x^2 + 54x - 54

So f(-x) is not = -f(x) so it is not ODD either.

7 0

2 years ago

A family wants to save for college tuition for their daughter. What continuous yearly interest rate r% is needed in their saving

sergey [27]

Answer:

The continuous yearly interest is 22.5% per year.

Step-by-step explanation:

Continuous yearly interest:

Continuous yearly interest is defined as the sum of the interest comes from principle and the interest comes from interest.

The formula for continuous interest yearly is

$A=Pe^{rt}$

where A = The final amount =$110,000

P= principle =$4,700

r= rate of interest

t= time (in year)= 14 years

$\therefore 110,000= 4,700e^{r\times 14}$

$\Rightarrow e^{14r}= \frac{110,000}{4,700}$

Taking ln both sides

$\Rightarrow ln e^{14r}= ln(\frac{110,000}{4,700})$

$\Rightarrow {14r}= ln(\frac{1100}{47})$

$\Rightarrow r=\frac{ln( \frac{1100}{47})}{14}$

$\Rightarrow r = 0.225$ (approx)

The continuous yearly interest is 0.225 = 22.5% per year.

4 0

2 years ago