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3 years ago

Please help here too, idk this is hard for me

Mathematics

1 answer:

slamgirl [31]3 years ago

6 0

Answer:

47 degrees

Step-by-step explanation:

half of a circle is 180

180-133=47

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Help please!!!

katovenus [111]

Answer:

x = $\frac{7+\sqrt{47}\times i }{4}$

Step-by-step explanation:

<u>To solve quadratic systems,we always substitute one variable in terms if the other and then solve the equation.</u>

x + 2y = 6 ---------------(1)

y - 5 = $(x-2)^{2}$ ---------------(2)

y = $(x-2)^{2}$ + 5 ---------------(3)

Substitute (3) in (1) ,

x + 2( $(x-2)^{2}$ + 5 ) = 6

$(a + b)^{2}$ = $a^{2} + 2ab + b^{2}$

x + 2( $x^{2} - 4x + 4$ + 5 ) = 6

$2x^{2} - 7x + 12=0$ --------------(4)

The roots of the quadratic equation $ax^{2} +bx+c$ is

x = $\frac{(-b) + \sqrt{(-b)^{2}-4 \times ac } }{2 \times a}$ -----------(5)

According to equation (5),solution of (4) is

x = $\frac{7 + \sqrt{(-7)^{2}-4 \times 24 } }{2 \times 2}$

x = $\frac{7+\sqrt{49-96}}{4}$

x = $\frac{7+\sqrt{47}\times i }{4}$

4 0

3 years ago

Whats 8-4 I would like to know

deff fn [24]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Please help out !!!!

evablogger [386]

Answer:

x = 8

Step-by-step explanation:

you have similar triangles here

so 2 is to 4 as 4 is to x

2/4 = 4/x

x = 8

8 0

3 years ago

What is (-10,8) in point- slope form?

nata0808 [166]

There can't be a point-slope form until you have TWO points.
A single point doesn't have any other form.
There are an infinite number of lines that all go through a single point.
Every one of them has a different slope, and a different point-slope form.

7 0

3 years ago

If 7 || m, find the value of x<br> (9x - 4)' Us 4+ (5x + 16)"

KonstantinChe [14]

Answer:

Step-by-step explanation:

9x - 4 + 5x + 16 = 180

14x + 12 = 180

14x = 168

x = 12

7 0

3 years ago

Read 2 more answers