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3 years ago

What is 2 4/5 as a decimal?

Mathematics

2 answers:

monitta3 years ago

7 0

2.8 ! the two is the whole and the fraction is the 8 after the decimal ! happy learning!

posledela3 years ago

3 0

2.8 hope i helped....................

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Please someone help me

Vika [28.1K]

Answer:

92.4 m^2

Step-by-step explanation:

Area of Trapezoid: h(b1+b2)/2

6.6 (14.2 + 7.6 + 6.2) / 2

= 6.6 (28) / 2

= 184.8/2

= 92.4 m^2

5 0

3 years ago

Read 2 more answers

Find the equation of the line that passes through (0, -3) and is parallel to

Tresset [83]

Hey there!

$\\$

Answer:

$\green{\boxed{\red{\bold{\sf{y = \dfrac{7}{6}x - 3}}}}}$

$\\$

Explanation:

To find the equation of a line, we first have to determine its slope knowing that parallel lines have the same slope.

Let the line that we are trying to determine its equation be $\: \sf{d_1} \:$ and the line that is parallel to $\: \sf{d_1} \:$ be $\: \sf{d_2} \:$ .

$\sf{d_2} \:$ passes through the points (9 , 2) and (3 , -5) which means that we can find its slope using the slope formula:

$\sf{m = \dfrac{\Delta y}{\Delta x} = \dfrac{\green{y_2} - \orange{y_1}}{\red{x_2} - \blue{x_1 }}}$

$\\$

⇒Subtitute the values :

$\sf{(\overbrace{\blue{9}}^{\blue{x_1}}\: , \: \overbrace{\orange{2}}^{\orange{y_1}}) \: \: and \: \: (\overbrace{\red{3}}^{\red{x_2}} \: , \: \overbrace{\green{-5}}^{\green{y_2}} )}$

$\implies \sf{m = \dfrac{\Delta y}{\Delta x} = \dfrac{\green{-5} - \orange{2}}{\red{ \: \: 3} - \blue{9 }} = \dfrac{ - 7}{ - 6} = \boxed{ \bold{\dfrac{7}{6} }}}$

$\sf{\bold{The \: slope \: of \: both \: lines \: is \: \dfrac{7}{6}}}$ .

Assuming that we want to get the equation in Slope-Intercept Form, let's substitute m = 7/6:

Slope-Intercept Form:

$\sf{y = mx + b} \\ \sf{Where \: m \: is \: the \: slope \: of \: the \: line \: and \: b \: is \: the \: y-intercept.}$

$\implies \sf{y = \bold{\dfrac{7}{6}}x + b}$ $\\$

We know that the coordinates of the point (0 , -3) verify the equation since it is on the line $\: \sf{d_1} \:$ . Now, replace y with -3 and x with 0:

$\implies \sf{\overbrace{-3}^{y} = \dfrac{7}{8} \times \overbrace{0}^{x} + b} \\ \\ \implies \sf{-3 = 0 + b} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \implies \sf{\boxed{\bold{b = -3}} } \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

Therefore, the equation of the line $\: \bold{d_1} \:$ is $\green{\boxed{\red{\bold{\sf{y = \dfrac{7}{6}x - 3}}}}}$

$\\$

▪️Learn more about finding the equation of a line that is parallel to another one here:

↣brainly.com/question/27497166

8 0

2 years ago

Read 2 more answers

Tan2x=___

SSSSS [86.1K]

Step-by-step explanation:

tan2x = sin2x/cos2x

we know that ,

sin2x = 2sinxcosx
sin2x = 2sinxcosx cos2x = cos²x - sin²x

Since, tan2x = 2sinx*cosx/cos²x- sin²x

Dividing by cos²x in numerator and denominator.

We get ,

tan2x = 2sinx/cosx / 1- sin²x/cos²x

Since, we get tan2x= 2tanx/1-tan²x

Option (c) is correct option.

Hope it will be helpful

7 0

2 years ago

Dwight has a new job that garuntees a six percent raise of each year with the company. His initial salary $52,000 per year

skad [1K]

Answer:

y= 52,000+.6x

Step-by-step explanation:

5 0

2 years ago

A . y+2 = x B. y+1 = x C. y-1 = x D. y-2 = x what answer?

ValentinkaMS [17]

Answer: y = x - 2, or y+2=x

Step-by-step explanation: The slope of the line is 1 (y increases by 1 for every x increase of 1). So we start with y = 1x + b. b is the y intercept, which is -2. Thus, we have y = 1x- 2.

5 0

3 years ago