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3 years ago

I need help. Not sure how to do this one.

Mathematics

1 answer:

Inga [223]3 years ago

7 0

Answer:

Yes, BC || DE

Step-by-step explanation:

set up proportion and cross multiply to solve:

15/10 = 12/8

120 = 120

This is true! You can justify by explaining how you cross multiplied like the bold words above :)

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Helpppppppp will mark brainlest

Shkiper50 [21]

Answer:

-8

Step-by-step explanation:

what do you think, when you look at the examples given in the problem definition ?

don't you see the pattern, that f(x) = x+2 ?

f(1) = 1+2 = 3

f(2) = 2+2 = 4

f(3) = 3+2 = 5

so, if we follow this assumption, then

f(-10) = -10 + 2 = -8

5 0

3 years ago

Each small square on this scale weighs 1 unit. Each larger square weighs 10 units. The weight of the triangle x is unknown. The

Iteru [2.4K]

The equation to represent the relationship of the weights shown on the scale s $22 + x = 34$

The weights are given as:

$Small\ Square = 1$

$Larger\ Square = 10$

The total weight on one side, where there are 4 small squares and 3 large squares is:

$Total =4\times Small\ Square + 3 \times Larger\ Square$

$Total =4\times 1 + 3 \times 10$

$Total =34$

The total weight on the other side, where there are 2 small squares, 2 large squares and 1 triangle is:

$Total =2\times Small\ Square + 2 \times Larger\ Square + 1\times triangle$

$Total =2\times 1+ 2 \times 10+ 1\times triangle$

$Total =2+ 20+ 1\times triangle$

$Total =22+ 1\times triangle$

$Total =22+ triangle$

The weight of the triangle is x.

So, we have:

$Total =22+ x$

The weights on both sides are equal, because the scale is balanced.

So, we have:

$22 + x = 34$

Hence, the equation is $22 + x = 34$

Read more about equations at:

brainly.com/question/2972832

7 0

3 years ago

Quadratic Equations How to find x and y-intercepts from vertex form (not standard).

12345 [234]

Here is how to find the intercepts, if the graph is hovering above the x axis (k<0) there will be no real solutions for the x intercept

4 0

3 years ago

Classify the system of equations -1/2x=3-y -7+y=1/2x-2

miskamm [114]

Answer: Inconsistent.

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

$y=mx+b$

Where "m" is the slope and "b" is the y-intercept.

Solve for "y" in each equation:

Equation 1

$-\frac{1}{2}x=3-y\\\\y=\frac{1}{2}x+3$

Equation 2

$-7+y=\frac{1}{2}x-2\\\\y=\frac{1}{2}x-2+7\\\\y=\frac{1}{2}x+5$

You can notice that the slope of the Equation 1 is:

$m_1=\frac{1}{2}$

And the slope of the Equation 2 is:

$m_2=\frac{1}{2}$

Observev that $m_1=m_2$ , then you can conclude that the lines are parallel and the System of equations has No solution.

When there is no solution the classification of the system of equations is: "Inconsistent".

5 0

4 years ago

Witch one is greater 21 ft or 17 yd

morpeh [17]

First, you want to find out how many feet in a yard

3ft=1yd

so you do 21/3 to get your yard, and the answer is 7 yard

17 yard is greater than 7 yard so 17 is the answer

7 0

3 years ago