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2 years ago

Please I swear my math teacher is going to kill me

Mathematics

1 answer:

vodomira [7]2 years ago

8 0

5x−y=4

Solve for y

Tap for more steps...

y=−4+5x

Rewrite in slope-intercept form.

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y=5x−4

Use the slope-intercept form to find the slope and y-intercept.

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Slope: 5

y-intercept: (0,−4)

Any line can be graphed using two points. Select two x

values, and plug them into the equation to find the corresponding y

values.

Tap for more steps...

xy0−4450

Graph the line using the slope and the y-intercept, or the points.

Slope: 5

y-intercept: (0,−4)

xy0−4450

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3 years ago

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levacccp [35]

Answer:

The above triangle is an isosceles triangle....

Reason

As we can see AB and DE are parallel to each other

As angle ABC is 80 degree

Therefore BCE is too 80 degree (as they both are alternate to each others)

Hence angle DCB is a 50 degree because in the straight DCE we have angle BCE as 80 degree and Angle ACD as 50 degree

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Answer BY AN INDIAN

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4 years ago

A written explanation solving the question how much fluid is needed using the Pythagorean method and finding the area of the tri

Alecsey [184]

Answer:

793 liters of washing fluid is needed

Step-by-step explanation:

step 1

Find the slant height of the triangular faces of pyramid

we know that

The lateral area of a square pyramid is equal to the area of its four triangular faces

$LA=4[\frac{1}{2}bl]$

where

b is the base of triangle (is the same that the length of the square base)

l is the slant height

To find out the slant height we need to apply the Pythagorean Theorem

$l^2=(b/2)^2+h^2$

we have

$b=35.42\ m$

$h=21.64\ m$

substitute

$l^2=(35.42/2)^2+21.64^2$

$l^2=781.9337$

$l=27.96\ m$

step 2

Find the lateral area of the pyramid

$LA=4[\frac{1}{2}bl]$

we have

$l=27.96\ m$

$b=35.42\ m$

substitute

$LA=4[\frac{1}{2}(35.42)(27.96)]$

$LA=1,980.6864\ m^2$

step 3

Find out how much window washing fluid is needed

we know that

2 L of washing fluid cover 5 square meters

using proportion

$\frac{2}{5}\ \frac{L}{m^2}=\frac{x}{1,980.6864}\ \frac{L}{m^2}\\\\x=1,980.6864(2)/5\\\\x= 792.27\ L$

Round up

793 liters of washing fluid is needed

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4 years ago

Maria wants to spend less than $110. She wants to buy some shirts, s.

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3 years ago

Please I swear my math teacher is going to kill me​

Please I swear my math teacher is going to kill me