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3 years ago

Find the product of two numbers whose sum is 11 and difference is 3.

Mathematics

2 answers:

mart [117]3 years ago

7 0

Answer:

a. 7 and 4

b. 28

Step-by-step explanation:

7 minus 4 is 3

7 plus 4 is 11

7 times 4 is 28

beks73 [17]3 years ago

4 0

Answer: 28

Step-by-step explanation: Hope this helps:)

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Compound Interest: You deposit $100 in an account that earns 3% annual interest compounded continuously. How long does it take t

monitta

9514 1404 393

Answer:

a) 3.18 years

b) 13.52 years

c) 23.10 years

Step-by-step explanation:

Solving for t, we find ...

A = Pe^(rt)

A/P = e^(rt)

ln(A/P) = rt

t = ln(A/P)/r

For P=100 and r=.03, the times are ...

a. $110: t = ln(110/100)/.03 ≈ 3.18 years

b. $150: t = ln(150/100)/.03 ≈ 13.52 years

c. $200: t = ln(200/100)/.03 ≈ 23.10 years

6 0

3 years ago

Last 2 questions please help

Jlenok [28]

4.
Minimum: 20
First Quartile: 44
Median: 51
Third Quartile: 57
Maximum: 86

Ascending order : 20 41 44 44 49 53 55 57 80 86

6 0

2 years ago

This net can be folded to make a square pyramid. what is the surface area of the pyramid

givi [52]

Answer:

$85in^2$

Step-by-step explanation:

to find the surface area we need to find the followng areas:

area of the square

area of a triangle and multiply it by 4 (because there are 4 triangles)

And once we have those areas, we add them to find the surface area.

Area of the square:

the formula to find the area of a square is:

$a_{square}=l^2$

where $l$ is the length of the side: $l=5in$

thus the area of the square is:

$a_{square}=(5in)^2$

$a_{square}=25in^2$

Area of the triangles:

the are of 1 triangle is given by

$a_{triangle} =\frac{b*h}{2}$

where $b$ is the base of the triangle: $b=5in$ (the base of the triangle is the side of the square)

and $h$ is the height of the triangle: $h=6in$

thus, the area of 1 triangle is:

$a_{triangle} =\frac{(5in)*(6in)}{2}$

$a_{triangle} =\frac{30in^2}{2}$

$a_{triangle} =15in^2$

the area of the 4 triangles is (we multiply by 4):

$a_{4-triangles}=4(15in^2)$

$a_{4-triangles}=60in^2$

finally we add the area of the square and the area of the 4 triangles to find the total surface area:

$Surface=25in^2+60in^2$

$Surface=85in^2$

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2 years ago

SOMONE PLEASE HELP ME WITH THIS ASAP WILL GIVE BRAINLEST

DENIUS [597]

Answer:

what do you. red to know I can help you out

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3 years ago

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Which sequences of transformations result in an image being congruent to its pre-image?

Alecsey [184]

A reflection about the x axis and a reflection about the y axis

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3 years ago