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3 years ago

Using the pencil, plot the point (-1,-5).

Mathematics

1 answer:

Crazy boy [7]3 years ago

6 0

Just remember the negative numbers go in this coordinate problem goes in the left -1 is the x axis and -5 is the y axis. Here I set it up so that you’d understand what’s going on

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A box has 3 pencils, 5 pens, and 4 markers. What is the probability of randomly pulling out a marker, then after putting it back

NARA [144]

Answer:

1/4 chance of pulling a pencil then 3/4 for ur frend

6 0

3 years ago

Read 2 more answers

Find the measure of x.

Sunny_sXe [5.5K]

Answer:

$\large\boxed{x=2\sqrt{181}\approx26.91}$

Step-by-step explanation:

If AB is a tangent of a circle, then the angle B is right angle. Therefore the triangle ABC is a rigth triangle.

BC and x are the radius of a circle. Therefore BC = x.

Use the Pythagorean theorem:

$BC^2+BA^2=AC^2$

We have

$BC=x,\ BA=80,\ AC=82$

Substitute:

$x^2+80^2=82^2$

$x^2+6400=6724$ <em>subtract 6400 from both sides</em>

$x^2=724\to x=\sqrt{724}\\\\x=\sqrt{4\cdot181}\\\\x=\sqrt4\cdot\sqrt{181}\\\\x=2\sqrt{181}$

6 0

4 years ago

Write and equation for the trend line shown

Zepler [3.9K]

Answer:

y = $-\frac{10}{3}$ <em>x</em> + 70

y = 70 $-\frac{10}{3}x$

(They're both the same equation, whichever one you prefer you can use!)

7 0

3 years ago

If using the method of completing the square to solve the quadratic equation x^2 + 3x +21 =0?

goldfiish [28.3K]

Answer:

$x= \dfrac 12 \left( -3 +i5\sqrt 3\right)\\\\x= \dfrac 12 \left( -3 -i5\sqrt 3\right)$

Step-by-step explanation:

$~~~~~~x^2 +3x +21 = 0\\\\\implies x^2 +3x = -21\\\\\implies x^2 + 2\cdot \dfrac 32 \cdot x + \left( \dfrac 32 \right)^2 = -21 + \left( \dfrac 32 \right)^2\\\\\implies \left(x + \dfrac 32 \right)^2 = -21+\dfrac 94\\\\\implies \left(x + \dfrac 32 \right)^2 = -\dfrac{75}4\\\\\implies x+ \dfrac 32 = \pm\sqrt{-\dfrac{75}4 \right)\\\\\implies x + \dfrac 32 = \pm i \dfrac{5\sqrt 3}{2}\\\\\implies x = -\dfrac 32 \pm i \dfrac {5\sqrt 3}2\\\\\implies x = \dfrac 12 \left( -3 \pm i5\sqrt 3\right)$

8 0

2 years ago

Caitlyn and Steve are planning their wedding reception and must decide between two catering halls. The first site, A Wedding Spa

anzhelika [568]

The guest they can invite so that the cost they pay will be the same at both wedding catering halls is 18.

<h3>What is a system of equations?</h3>

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

The given equation is

900+50x=450+75x

To solve;

900 - 450 = -50x +75x

450 = 25x

x = 450 /25

x = 18

The guest they can invite so that the cost they pay will be the same at both wedding catering halls is 18.

Learn more about equations here;

brainly.com/question/10413253

#SPJ1

8 0

2 years ago