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3 years ago

What is the value of x? What is the value of y?

Mathematics

1 answer:

Rudik [331]3 years ago

6 0

Answer:

Y= 20

X= 25

Step-by-step explanation:

The angles of a triangle have to equal 180

80+60 = 140

180 - 140 = 40

40/2 = 20

Y = 20

The angles of a linear line split equal 180

2y is one side of it which we learned Y = 20 which makes that side 40

To find the other side just guess and check

6(25) = 150

150 - 10 = 140

So the 2y = 40 and the (6x-10) = 140

So yea boom done

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Help please! 15 POINTS

oksian1 [2.3K]

Answer: d) 983 11/15 cm3

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8 0

3 years ago

Help me. The graph of a polynomial with unknown a is given. Write a polynomial

Xelga [282]

Answer:

$f(x)=\dfrac{7}{20}\left(x+2\right)^{2}\left(x-1\right)$ .

Step-by-step explanation:

If a graph touches the x-axis at x=c, then (x-c) is a factor of function.

From the given graph it is clear that the graph of function intersect x-axis at x=1 and touch the x-axis at x=-2.

It means (x-1) and (x+2) are not factors of given function but power of (x+2) must be 2.

So, the required function is

$f(x)=a(x+2)^2(x-1)$ ...(1)

where, a is a constant.

From the given figure it is clear that the graph passes through the point (-4,-7). So, substitute x=-4 and f(x)=-7 in the above function.

$-7=a(-4+2)^2(-4-1)$

$-7=a(-2)^2(-5)$

$-7=-20a$

$\dfrac{7}{20}=a$

Substitute $a=\dfrac{7}{20}$ in (1).

$f(x)=\dfrac{7}{20}(x+2)^2(x-1)$

Therefore, the required function is $f(x)=\dfrac{7}{20}(x+2)^2(x-1)$ .

6 0

3 years ago

The slope of the line below is -2. Use the coordinates of the labeled point to

Vilka [71]

Answer:

We can express the equation for any linear equation with slope -2 and point (x0,y0) as:

$y=-2x+(y_0+2x_0)\\\\y-y_0=-2(x-x_0)$

Step-by-step explanation:

Incomplete question:

There is no point to complete the equation.

As we have no point to complete the linear equation, we will solve for any given point (x0,y0) and a slope of m=-2.

The linear equation can be written generically as:

$y(x)=mx+b\\\\y(x)=-2x+b$

If a point, like (x0,y0) belongs to the linear equation, it satisfies its equation. Then:

$y_0=-2x_0+b$

Then, we can calculate b as:

$y_0=-2x_0+b\\\\b=y_0+2x_0$

We can express the equation for any linear equation with slope -2 and point (x0,y0) as:

$y=-2x+(y_0+2x_0)\\\\y-y_0=-2(x-x_0)$

6 0

3 years ago

Danielle fill a container with soil by using a bowl. The bowl holds 3/4 cup of soil. Danielle use 13 full bowl of soil to fill t

bixtya [17]

The container holds 9 3/4 cups of soil

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3 years ago

Factorise 2x²-9x+10 (this must be put in two brackets)

galben [10]

Find both roots :
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Thus it is $2(x-\frac{5}2)(x-2)$

4 0

3 years ago

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