2 years ago

54÷6+0.42×(9×8÷2+82)

Mathematics

2 answers:

icang [17]2 years ago

6 0

Answer:

58.56

Step-by-step explanation:

7nadin3 [17]2 years ago

6 0

Answer: 58.56
Solving Steps:

You might be interested in

the length of the longer leg of a right triangle is 3 ft more than three times the length of the shorter leg. the length of the

Ulleksa [173]

with the pythagorean theorem

$\begin{gathered} (4+3x)^2=x^2+(3+3x)^2 \\ 16+24x+9x^2=x^2+9+18x+9x^2 \\ 16+24x+9x^2=10x^2+18x+9 \\ 16+24x+9x^2-9=10x^2+18x+9-9 \\ 9x^2+24x+7=10x^2+18x \\ 9x^2+24x+7-18x=10x^2+18x-18x \\ 9x^2+6x+7=10x^2 \\ 9x^2+6x+7-10x^2=10x^2-10x^2 \\ -x^2+6x+7=0 \end{gathered}$

using the formula of the quadratic equation

$\begin{gathered} x_{1,\: 2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a} \\ x1=\frac{-6+\sqrt{6^2-4\left(-1\right)\cdot\:7}}{2\left(-1\right)}=-1 \\ x2=\frac{-6-\sqrt{6^2-4\left(-1\right)\cdot\:7}}{2\left(-1\right)}=7 \end{gathered}$

the length cannot be negative, therefore x=7

length of the shorter leg is: 7ft

length of the longer leg is: 3+3(7)= 24ft

length of the hypotenuse is: 4+3(7)= 25ft

5 0

6 months ago

Help I need help right now pls someone and thanks

wariber [46]

C because i took the test

3 0

2 years ago

Read 2 more answers

Show a way to count from 668 to 900 using ones tens and hundreds

cricket20 [7]

Hey there!

You can count from 668 to 900 using the following:

668 → 768 → 868 (two 100s)

868 → 878 → 888 → 898 (three 10s)

898 → 899 → 900 (two 1s)

Hope this helped you out! :-)

7 0

2 years ago

Read 2 more answers

I NEED THIS DONE ASAPPPP<br> expand 4(m+2)<br><br> 4(m+2) =

77julia77 [94]

4(m + 2) expanded is 4 x m and 4 x 2

simplified: 4m + 8

3 0

2 years ago

A large carton of milk is 72 ounces. How

agasfer [191]

Answer: not here!