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tangare [24]
2 years ago
6

The equation A = p + prt is used to find the accumulated amount, A, of an investment with principal, P, a certain interest rate,

r, and over time, t. What is the value for r, after the equation is rearranged?
r equals start fraction cap a plus p over p t end fraction
r equals start fraction cap a minus p over p t end fraction
r equals start fraction cap a minus one over t end fraction
r = A − p − pt
Mathematics
1 answer:
Whitepunk [10]2 years ago
4 0

Answer:

  r equals start fraction cap a minus p over p t end fraction

Step-by-step explanation:

Subtract the term non containing r, then divide by the coefficient of r.

  A=p+prt\\\\A-p=prt\\\\\dfrac{A-p}{pt}=r

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Please help me!!! i will gladly give brainliest :)
True [87]

Given:

ΔONP and ΔMNL.

To find:

The method and additional information that will prove ΔONP and ΔMNL similar by the AA similarity postulate?

Solution:

According to AA similarity postulate, two triangles are similar if their two corresponding angles are congruent.

In ΔONP and ΔMNL,

\angle ONP\cong \angle MNL       (Vertically opposite angles)

To prove ΔONP and ΔMNL similar by the AA similarity postulate, we need one more pair of corresponding congruent angles.

Using a rigid transformation, we can prove

\angle NOP\cong \angle NML

Since two corresponding angles are congruent in ΔONP and ΔMNL, therefore,

\Delta ONP\sim \Delta MNL        (AA postulate)

Therefore, the correct option is A.

8 0
2 years ago
Read 2 more answers
This school is also thinking of changing their mascot to an armadillo. To change mascot, a 55% supermajority is needed. How many
Dennis_Churaev [7]

Answer:

132 students

Step-by-step explanation:

100% means all of something, so 100% can also be written as 1.00

Since we need 55% of 240, we can multiply 240 by 0.55 and get 132.

5 0
2 years ago
What does it mean when sampling is done without​ replacement? Choose the correct answer below. A. Once an individual is​ selecte
solmaris [256]

Answer:

The correct option is A) Once an individual is​ selected, the individual cannot be selected again.

Step-by-step explanation:

Consider the provided statement.

Without​ replacement mean each population sample unit has only one opportunity in the sample to be chosen.

For example:

If a bag contains 5 red and 3 white ball and you randomly select a white ball, the probability of selecting the white ball is 3/8.

Now if the experiment is done by without replacement that means the white ball (which you have selected) is no longer the part of the sample space.

Hence, we can say that once an individual is​ selected, the individual cannot be selected again.

Thus, the correct option is A) Once an individual is​ selected, the individual cannot be selected again.

8 0
3 years ago
what is the surface area of a square pyramid with base side lengths of 10 inches and a slant height of 14 inches
Pavlova-9 [17]

Answer:

The surface area is 380\ in^{2}  

Step-by-step explanation:

we know that

The surface area of the square pyramid is equal to the area of the square base plus the area of its four lateral triangular faces

so

SA=b^{2}+4[\frac{1}{2}(b)(l)]

where

b=10\ in

l=14\ in -----> the slant height

substitute the values

SA=10^{2}+4[\frac{1}{2}(10)(14)]

SA=380\ in^{2}    

5 0
2 years ago
56 out of 128 students went on a trip during vacation. What percent of students went on the trip?
ElenaW [278]

Answer:

45.75%

Step-by-step explanation:

7 0
3 years ago
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