All categories

3 years ago

Help meeeeeeeeeeee (25 points)

Mathematics

1 answer:

vivado [14]3 years ago

4 0

Answer:

239 mm^2

Step-by-step explanation:

We will split the figure into 3 pieces

The bottom rectangle

A = l*w = 7*3 = 21 mm^2

The top rectangle

A = l*w = 5*10 = 50 mm^2

The right triangle

A = 1/2 b*h = 1/2 ( 16) * (16+5) = 8 * (21) = 168 mm^2

The total area is 21+50+168 =239

You might be interested in

Name two angles with identical measures<br><br> A. B. C. D.

Semmy [17]

Angle POQ and Angle UOT are identical. This also applies to angles QOP and TOU, as they are the same angles as listed before.

7 0

3 years ago

Read 2 more answers

The planets move around the sun in elliptical orbits with the sun at one focus. The point in the orbit at which the planet is cl

gladu [14]

Consider the attached ellipse. Let the sun be at the right focus. Then perihelion is at right vertex on the x-axis and aphelion is at the left vertex on the x-axis.

The distances:

from perihelion to the sun in terms of ellipse is a-c;
from aphelion to the sun in terms of ellipse is a+c.

Then

$\left\{\begin{array}{l}a-c=741,000,000\\a+c=817,000,000\end{array}\right.$

Add these two equations:

$2a=1,558,000,000 \\ \\a=779,000,000$

and subtract first equation from the second:

$2c=76,000,000 \\ \\c=38,000,000.$

Note that $b=\sqrt{a^2-c^2},$ thus

$b=\sqrt{779,000,000^2-38,000,000^2}=\sqrt{605,397,000,000,000,000}.$

The equation for the planet's orbit is

$\dfrac{x^2}{a^2}+\dfrac{y^2}{b^2}=1\Rightarrow \dfrac{x^2}{606,841,000,000,000,000}+\dfrac{y^2}{605,397,000,000,000,000}=1.$

7 0

3 years ago

3/6(r-7)=1 what Is value of r

sleet_krkn [62]

3/6 (r-7) =1 The answer is r=7

3 0

3 years ago

Please help me on these questions and explain it thanks

Korolek [52]

ABC = 180-120=60
ACB = 180-(40+60)=80
Therefore ECD= 80 as ACB and ECD are vertically opposite angles

the solution is A as that is where the graphs intersect each other

6 0

3 years ago

How is multiplying 0.3 by 10 like multiplying 0.3 by 0.01? how is it different?

Tpy6a [65]

Answer:

they both will have a product containing the number three and they are different because .3 times .01 will have a lesser amount for a product

Step-by-step explanation:

5 0

3 years ago