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2 years ago

Leon created a scale drawing of the school library in his art class.

Mathematics

1 answer:

alukav5142 [94]2 years ago

3 0

Answer:

Step-by-step explanation:

The scale drawing is 13 inches. The actual side is 78 feet.

Answer F says 1 * 6. 13 * 6 = 78.

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-8y-2(5y+9)<br> can yall help me!!!!!!!!!!!!<br> it is 10 points

My name is Ann [436]

Answer:

-18y - 18

Step-by-step explanation:

The -2 needs to be distributed into both values in the parenthesis. This will make the equation -8y - 10y - 18. Then, you put the like terms together. This will result in the final equation, -18y - 18

5 0

2 years ago

If the cube above has a surface area of 54cm^3, what is the volume of the cube?

Colt1911 [192]

9514 1404 393

Answer:

27 cm³

Step-by-step explanation:

The surface area of a cube is ...

SA = 6s²

Then the edge length is ...

54 cm² = 6s² . . . . . please note that cm³ is not the appropriate unit for area

9 cm² = s² . . . . . .divide by 6

3 cm = s . . . . . . . take the square root

The volume of a cube is ...

V = s³

V = (3 cm)³ = 27 cm³

The volume of the cube is 27 cm³.

3 0

2 years ago

Solve -7x^2+x+9=-6x quadratic formula

myrzilka [38]

Answer:

$-7x^2+x+9=-6x$

$-7x^2+x+9+6x=-6x+6x$

$-7x^2+7x+9=0$

$quadratic\: formula$

$x_{1,\:2}=\frac{-7\pm \sqrt{7^2-4\left(-7\right)\cdot \:9}}{2\left(-7\right)}$

$\sqrt{-7^{2} -4(-7)\times9} =\sqrt{301}$

$x_{1,\:2}=\frac{-7\pm \sqrt{301}}{2\left(-7\right)}$

$\frac{-7+\sqrt{301}}{2\left(-7\right)}$

$=\frac{-7+\sqrt{301}}{-2\cdot \:7}$

$=\frac{-7+\sqrt{301}}{-14}$

$\frac{-7-\sqrt{301}}{2\left(-7\right)}$

$=\frac{-7-\sqrt{301}}{-2\cdot \:7}$

$=\frac{-7-\sqrt{301}}{-14}$

$answer=\frac{7+\sqrt{301}}{14}$

$OAmalOHopeO$

7 0

2 years ago

Find the slope of the line that passes through (-6,1) and (4,-3)

Aleonysh [2.5K]

$Slope\ formula=\frac{rise}{run}=\frac{y_2-y_1}{x_2-x_1}=\\\\\frac{-3-1}{4-(-6)}=\\\\\frac{-4}{10}=\\\\{\boxed{Slope=-\frac{2}{5}}$

7 0

2 years ago

A pyramid has a regular hexagonal base with side links of four and a slant height of six. Find the total area of the pyramid

vova2212 [387]

Area of the Base = 6 * side^2 / 4 * tan (180/6)

Area of the Base = 6 * 16 / 4 * 0.57735

Area of the Base = 96 / 2.3094

Area of the Base = 41.5692387633

Area of 1 Face = 2 * 6 = 12

Area of 6 Faces = 72

Total Area = 41.5692387633 + 72

Total Area = 113.5692387633

7 0

3 years ago