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2 years ago

11

What is the solution to this system of equations?

2 answers:

tia_tia [17]2 years ago

8 0

Answer:

(2,4) is the solution of the equation.

Step-by-step explanation:

Basically, the solution is the two points intersecting at a point. So, (2,4) is the solution of the equation.

Hoped this helped.

mihalych1998 [28]2 years ago

6 0

I just need points sorry

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The polynomial below is a perfect square trinomial of the form A2 - 2AB + B2.

seropon [69]

Answer: Option B.

Step-by-step explanation:

Given the polynomial:

$16x^2-36x+9$

Observe that $16x^2$ and $9$ are perfect squares. Then, you can rewrite the polynomial in this form:

$(4x)^2-36x+(3)^2$

You can identify that:

$A=4\\B=3$

Then, we can check if $2AB=36$

$2(4x)(3)=36x\\\\24x\neq 36x\\\\2AB\neq36x$

Since $2AB\neq36x$ , the polynomial $16x^2-36x+9$ <em>IS NOT </em>a perfect square trinomial of the form $A^2 - 2AB + B^2$

8 0

3 years ago

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Find the length of the missing side. Give your answer in the simplest radical form.

taurus [48]

Answer:

x = $2\sqrt{5}$

Step-by-step explanation:

Use Pythagorean theorem,

Hypotenuse² = base² + altitude²

x² = (√8)² + 4²

= 8 + 16

= 20

x = √20 = $\sqrt{2*2*5} = 2\sqrt{5}$

x = $2\sqrt{5}$

6 0

3 years ago

One factor in flood safety along a levee is the area that will absorb water should the levee break. The coordinates that make up

Anit [1.1K]

Let

$A(0,0)\\ B (2.8, 2.1)\\C(4.3, 4.4)$

using a graph tool

see the attached figure

The figure is a triangle

we know that

<u>The Heron's Formula</u> is a method for calculating the area of a triangle when you know the lengths of all three sides.

Hero's Formula is equal to

$Area=\sqrt{p*(p-a)*(p-b)*(p-c)}$

where

p is is half the perimeter of the triangle

a,b,c are the lengths of the sides of a triangle

so

Step $1$

<u>Find the length sides of the triangle</u>

a) <u>Find the distance AB</u>

$d =\sqrt{(y2-y1)^{2} +(x2-x1)^{2}}$

Substitute

$d =\sqrt{(2.1-0)^{2} +(2.8-0)^{2}}$

$d =3.5\ mi}$

b) <u>Find the distance AC</u>

$d =\sqrt{(y2-y1)^{2} +(x2-x1)^{2}}$

Substitute

$d =\sqrt{(4.4-0)^{2} +(4.3-0)^{2}}$

$d =6.15\ mi}$

c) <u>Find the distance BC</u>

$d =\sqrt{(y2-y1)^{2} +(x2-x1)^{2}}$

Substitute

$d =\sqrt{(4.4-2.1)^{2} +(4.3-2.8)^{2}}$

$d =2.75\ mi}$

Step $2$

<u>Find the perimeter of the triangle</u>

$Perimeter= 3.5+6.15+2.75 =12.4\ mi$

<u>Find the half of the perimeter </u>

$p=\frac{12.4}{2} = 6.2\ mi$

Step $3$

<u>Find the area of the triangle</u>

$Area=\sqrt{6.2*(6.2-3.5)*(6.2-6.15)*(6.2-2.75)}$

$Area=\sqrt{6.2*(2.7)*(0.05)*(3.45)}$

$Area= 1.69\ mi^{2}$

therefore

<u>the answer is the option </u>

a) 1.65 mi^2.

4 0

3 years ago

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Identify the percent of change as an increase or a decrease 3/8 to 7/8

USPshnik [31]

Not 100% sure this is correct but this seems correct.

3 0

3 years ago

Yo whats 2+2 (im doing this for fun ok give me your best dumb answer)

Nataliya [291]

Answer: 4

Step-by-step explanation: bc its common

5 0

3 years ago

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