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3 years ago

Name four coplanar points

Mathematics

1 answer:

JulijaS [17]3 years ago

8 0

Answer:

Points Q, B, D, E

Step-by-step explanation:

By definition, coplanar points are points that share the same plane. In this case, the points that are on the parallelogram.

The points that are labeled inside the parallelogram are points Q, B, D, E, so they are the coplanar points.

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Find the solutions of the quadratic equation 14x^2+9x+10=014x

Vesnalui [34]

Answer:

Option B. $x=-\frac{9}{28}(+/-)\frac{\sqrt{479}}{28}i$

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

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

in this problem we have

$14x^{2}+9x+10=0$

$a=14\\b=9\\c=10$

substitute in the formula

$x=\frac{-9(+/-)\sqrt{9^{2}-4(14)(10)}} {2(14)}$

$x=\frac{-9(+/-)\sqrt{-479}} {28}$

Remember that

$i=\sqrt{-1}$

substitute

$x=\frac{-9(+/-)\sqrt{479}i} {28}$

$x=-\frac{9}{28}(+/-)\frac{\sqrt{479}}{28}i$

5 0

3 years ago

I'll give brainliest

erma4kov [3.2K]

Answer:

I think its D sorry if I get it wrong

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Sam and Jeremy have ages that are consecutive odd integers. The product of their ages is 783, which equation could be used to fi

stepladder [879]

(2x+1)=Jeremy´s age
(2x+3)=Sam´s age.
we suggest this equation:
(2x+1)(2x+3)=783
4x²+6x+2x+3=783
4x²+8x-780=0
x²+2x-195=0

We solve this quadratic equation:
x=[-2⁺₋√(4-4*1*(-195))]/2=(-2⁺₋28)/2

x₁=(-2-28)/2=-15 this solution is not valid.
x₂=(-2+28)/2=13

Jeremy´s age=2x+1=2*13+1=27
Sam´s age=2x+3=2*13+3=29

7 0

3 years ago

Find the equation of a line that is parallel to the line x equals negative 1x=−1 and contains the point left parenthesis negativ

sineoko [7]

The equation of the line is given as $y-x=-1$

A straight line equation is given in the form $y=mx+c$ where $m$ is the gradient and $c$ is the y-interest.

We need to rearrange $y-x=-1$ to make $y$ the subject.
$y= x-1$ ⇒ from here we can read the gradient and the y-intercept. The gradient, $m=1$ and $c=-1$ .

<span>A line that is parallel to $y=x-1$ will have the same gradient, $m=1$ but different y-intercept. One example of equation of a line that is parallel to $y=x-1$ is $y=x+3$

</span>

8 0

3 years ago

Write a rule to describe each transformation

Veronika [31]

Answer:

k = 2

Step-by-step explanation:

the dilation k is the scale factor. A scale factor in math is the ratio between corresponding measurements of an object and a representation of that object. To find the scale factor k, we will compare the original points with their transformation

Point R is at (-1,2), and R' is at (-2,4).

divide the ys: 4/2 =2

divide the xs: -2/-1 =2

therefore the scale factor is 2

3 0

3 years ago