All categories

3 years ago

Please help! The questions and answers are in the picture!

Mathematics

1 answer:

son4ous [18]3 years ago

5 0

Answer: its b

Step-by-step explanation:

went over this last week

You might be interested in

Log (3x+5)=log (2x-7)

Alchen [17]

Answer:

x=-12 (BUT IS EXTRENUS)

Step-by-step explanation:

If u dont know what extraneous is, dont worry about it...

3 0

3 years ago

McGill pick 9 apples Andy picks four <br> apples how many fewer apples did Andi pick Ben McGill

inysia [295]

McGill picked 9 and andi picked 4 so 9-4=5
andi picked 5 apples less than mcgill

3 0

3 years ago

Angle FEDwith angleF=90degree, ED=36, and FE=22, calcularé the measures of the unknown angles and the unknown side length of the

Flauer [41]

Answer:

$\angle D=37.7^{\circ}$

$\angle E=52.3^{\circ}$

$FD\approx 28.5$

Step-by-step explanation:

Please find the attachment.

We have been given that angle FED with angle F=90 degree, ED=36, and FE=22. We are asked to find the unknown angles and the unknown side length of the triangle.

We will use sine to solve for angle D as:

$\text{sin}=\frac{\text{Opposite}}{\text{Hypotenuse}}$

$\text{sin}(D)=\frac{22}{36}$

$D=\text{sin}^{-1}(\frac{22}{36})$

$D=37.66988696^{\circ}$

$D\approx 37.7^{\circ}$

Therefore, measure of angle D is 37.7 degrees.

Now, we will find measure of angle E using angle sum property.

$m\angle E+m\angle F+m\angle D=180^{\circ}$

$m\angle E+90^{\circ}+37.7^{\circ}=180^{\circ}$

$m\angle E+127.7^{\circ}=180^{\circ}$

$m\angle E+127.7^{\circ}-127.7^{\circ}=180^{\circ}-127.7^{\circ}$

$m\angle E=52.3^{\circ}$

Therefore, measure of angle E is 52.3 degrees.

We will use Pythagoras theorem to solve for side FD as:

$FD^2+EF^2=ED^2$

$FD^2+22^2=36^2$

$FD^2+484=1296$

$FD^2=1296-484$

$FD^2=812$

$FD=\sqrt{812}$

$FD=28.495613697\\\\FD\approx 28.5$

Therefore, length of side FD is approximately 28.5 units.

6 0

3 years ago

Find the inverse of the following functions. G<br> 1. f(x) = 2x +1<br> y=x+1<br> -it 2y +

Aloiza [94]

Answer:

y=x-1/y

Step-by-step explanation:

x=2y+1

x-1=2y

y=x-1/y

6 0

3 years ago

I need help knowing how to show the work and how to get the answer and the answer it self

Morgarella [4.7K]

Find the separate areas.

We have a triangle with base 5 cm and height 5 cm, calculate the area:

$\sf A=\dfrac{1}{2}bh$

Plug in what we know:

$\sf A=\dfrac{1}{2}(5)(5)$

Multiply:

$\sf A=12.5~cm^2$

Now for the two quarter circles, we know that if we put these two together we will end up with a semi-circle with radius 5 cm. The formula for the area of a circle is:

$\sf A=\pi r^2$

A semi-circle is half of a whole circle, so the formula for the area of it must be:

$\sf A=\dfrac{1}{2}\pi r^2$

Now plug in what we know(use 3.14 to approximate for pi):

$\sf A\approx\dfrac{1}{2}(3.14)(5)^2$

Simplify the exponent:

$\sf A\approx\dfrac{1}{2}(3.14)(25)$

Multiply:

$\sf A\approx 39.25~cm^2$

Now add this to the area of the triangle to find the approximate area of the entire figure(round to the nearest tenth):

$\sf 39.25+12.5=\boxed{\sf 51.8~cm^2}$

4 0

3 years ago