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Llana [10]
3 years ago
14

In planning her​ retirement, Liza deposits some money at 2​% ​interest, with twice as much deposited at 3.5​%. Find the amount d

eposited at each rate if the total annual interest income is ​$1620.
Mathematics
1 answer:
Sonbull [250]3 years ago
8 0
Use this equation: P*r*t. Plug in the percentage, rate, and time (years) to solve for your interest! It's a simple problem and It would be good if you used that equation for these problems. Hope it helps!
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the length of a rectangle is 4 meters longer than the width. if the area is 22 square meters , find the rectangle dimension
Readme [11.4K]

Let breadth be x

  • Length=x+4

We know

\boxed{\sf Area_{(Rectangle)}=Length\times Breadth}

\\ \sf\longmapsto x(x+4)=22

\\ \sf\longmapsto x^2+4x=22

\\ \sf\longmapsto x^2+4x-22=0

  • By solving

\\ \sf\longmapsto x=-2\pm\sqrt{26}

It doesnot have any real roots

7 0
2 years ago
What is Integration ?
jek_recluse [69]

Answer:

Integration is the act of bringing together smaller components into a single system that functions as one. These links usually are established between the components of the process and control layer of each system to promote the free flow of data across systems.

7 0
2 years ago
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Simplify the expression<br><br>cot^2x - cot^2x cos^2x
andrew-mc [135]
Cot^2x - cot^2x cos^2x
= cot^2x - {(cot^2x)(cos^2x)}
= cot^2x { 1 - cos^2x }
= cot^2x { sin^2x }
= (cos^2x/sin^2x) { sin^2x }
= cos^2x
8 0
3 years ago
Mary wants to fill in a cylinder vase. At the flower store they told her that the vase should be filled 3/4 for the flowers to
Alex Ar [27]

Answer:

About 376.99 cubic inches

Step-by-step explanation:

Cylinder has a volume of:

V=\pi r^2h

Where

V is the volume

r is the radius

h is the height

We need to find the volume of the cylinder, then multiply that answer by 3/4 to get the solution to this problem. First, the full volume of the cylinder.

Given

r = 4

h = 10

So,

V=\pi r^2h\\V=\pi (4)^2 (10)\\V=502.65

Now, we multiply by 3/4:

502.65*\frac{3}{4}=376.99

Mary should be vase to 376.99 cubic inches

4 0
3 years ago
4^3 &gt; 6^2 Is this right or not right if not what other sign needs to go there.
Bess [88]

Answer:

that is right

Step-by-step explanation:

because 4×4×4 equals 64 and 6×6 equals 37 so it is 4^3>6^2

6 0
2 years ago
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