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2 years ago

HELP PLSSS How much money will be in the account after 6 years ?

Mathematics

1 answer:

ella [17]2 years ago

3 0

Try using the simple interest formula, I=p+r or use rate of change.

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The circumference of a circle is 604 cm. What is the diameter of the circle?

Marta_Voda [28]

Step-by-step explanation:

The Circumference is:

$c = 2\pi \: r$

Radius r is:

$r = \frac{d}{2}$

So,

$c = \pi \: d \\ d = \frac{c}{\pi} \\ d = \frac{604}{\pi} \: cm$

6 0

3 years ago

Find 83 1/3 % of 384 Also, side info the answer is not 319.872

neonofarm [45]

Answer:

320

Step-by-step explanation:

First, convert the percent into a fraction.

250/3*100 = 250/300 = 5/6

5/6 of 384 is 5 * 64 = 320

5 0

2 years ago

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Refer to the isosceles trapezoid shown. Find x

lorasvet [3.4K]

X is 110 . Am I right

3 0

2 years ago

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Research has suggested that musicians process music in the same cortical regions in which adolescents process algebra. When taki

svet-max [94.6K]

Answer:

c. an observed difference is 0.12 and P < 0.0001

Step-by-step explanation:

Let p1 be the proportion of the students who received musical instruction received a passing grade

Let p2 be the proportion of the students who didn't receive musical instruction received a passing grade

Null and Alternative hypotheses are:

$H_{0}$ : p1-p2=0

$H_{a}$ : p1-p2≠0

Test statistic can be found using the equation:

$z=\frac{p1-p2}{\sqrt{{p*(1-p)*(\frac{1}{n1} +\frac{1}{n2}) }}}$ where

p1 is the sample proportion of the students who received musical instruction received a passing grade ( $\frac{2818}{3239} =0.87$ )

p2 is the sample proportion of the students who didn't receive musical instruction received a passing grade ( $\frac{2091}{2787} =0.75$ )

p is the pool proportion of p1 and p2 ( $\frac{2818+2091}{6026}=0.81$ )

n1 is the sample size of the students who received musical instruction (3239)

n2 is the sample size of the students who didn't receive musical instruction (2787)

Thus, $z=\frac{0.87-0.75}{\sqrt{{0.81*0.19*(\frac{1}{3239} +\frac{1}{2787}) }}}$ ≈ 11.84 gives p-value < 0.0001

Observed difference is: 0.87-0.75=0.12

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3 years ago

Which concept can be used to prove that the diagonals of a parallelogram bisect each other? congruent triangles similar triangle

ch4aika [34]

Answer

The concept can be used to prove that the diagonals of a parallelogram bisect each other is congruent triangles

Explanation

In a parallelogram, opposite sides are equal and parallel.

The two diagonals in the parallelogram make four triangles. opposite triangles are congruent. That means two pair of congruent triangle are here.

Using congruence of triangles, we can prove the diagonals of a parallelogram bisect each other

4 0

2 years ago

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