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2 years ago

Solve(100 points to right answer)If you get it wrong or type random stuff you will be reported

Mathematics

1 answer:

anygoal [31]2 years ago

5 0

Answer:

24 ft

Step-by-step explanation:

Hypotenuse = √9²+16²=√81+256=√400=20ft

the upper side of the stuff = 4 ft

total = 20+4=24

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if area of a circle varies directly as the cube of the radius, when the area is 625cm the radius is 5cm. calculate the area of a

Maksim231197 [3]

Answer:

as the above condition....

5×5×5=625

same,, applying for 8 cm

8×8×8=512cm..

8 0

3 years ago

Hiii please help! i’ll give brainliest if you give a correct answer tysm!

VladimirAG [237]

answer

8/25

Step-by-step explanation:

so you would keep the first fraction (2/15) then you would change the symbol then you would flip the other fraction (5/12). then you would multiply 2*12=24 and 15*5=75. then you would simplifie it. it would be 8/25.

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3 years ago

What is the value of the expression 2^2+6^2÷2^2

Studentka2010 [4]

Answer:

Step-by-step explanation:

$2^{2} + 6^{2} / 2^{2} = 4+ 36/4 = 4 +9 = 13$

4 + (6/2)^2 = 4+ 3^2 = 4+9 = 13

3 0

2 years ago

Solve the system of equations by adding. check your answer

sertanlavr [38]

Answer:

(-9,3)

Step-by-step explanation:

6x and -6x cancel, leaving us 12y=36 which means y=3. Then we can plug it back into our equations leaving us with x=-9.

5 0

3 years ago

What are the determinants for solving this linear system? 5x + 3y = 17 −8x − 3y = 9 |A| = |Ax| = |Ay| =

valentina_108 [34]

For this case we have the following system of equations:

$5x + 3y = 17\\-8x - 3y = 9$

We can Rewrite the system of equations of the form:

$Ax = b$

Where,

A: coefficient matrix

x: incognita vector

b: vector solution

We have then:

$A=\left[\begin{array}{ccc}5&3\\-8&-3\end{array}\right]$

$x=\left[\begin{array}{ccc}x\\y\end{array}\right]$

$b=\left[\begin{array}{ccc}17\\9\end{array}\right]$

Then, the determinant of matrix A is given by:

$|A|=(5)(-3)-(3)(-8)\\$

$|A|=-15+24$

$|A|=9$

Answer:

The determinants for solving this linear system are:

$|A|=9$

7 0

3 years ago

Read 2 more answers