Ask question

Ask question

All categories

4 years ago

8

On a coordinate plane, triangle D E F has points (negative 8, 8), (10, negative 2), and (negative 8, negative 8). Find the area

of the triangle DEF. Area =_____ square units

2 answers:

NikAS [45]4 years ago

4 0

Answer:

144

Step-by-step explanation:

I got it on e2020. Hope this helps!

pshichka [43]4 years ago

4 0

Answer:

144 sq un

Step-by-step explanation:

On edge

You might be interested in

What is the measure of ∠C in the figure below

sertanlavr [38]

Answer:

C. 56°

Step-by-step explanation:

An isosceles triangle has two sides that are equal. ∆ABC has two equal sides. Thus, the angles opposite the two sides of an isosceles triangle are also congruent to each other.

<C and <A are congruent to each other.

m<A = 56°, therefore,

m<C = 56°

4 0

3 years ago

The circumference of a circle is 12 inches. What is the radius

IceJOKER [234]

Greetings!

"<span>The circumference of a circle is 12 inches. What is the radius?"...

We can use the formula to find the circumference of circle to solve this:
</span> $2 \pi r$
<span>
Input the information we know:
</span> $2 \pi r=12$
<span>
Solve for r, using the properties of equality:

Simplify.
</span> $6.28r=12$
<span>Divide both sides by 6.28
</span> $(6.28r)/6.28=(12)/6.28$ <span>
Simplify.
</span> $r=1.91$

The radius is 1.91cm long.

Hope this helps.
-Benjamin

7 0

3 years ago

Line m passes through the points (2, -7) and (4, -9) line m is parallel to which line

zhannawk [14.2K]

Answer:

The Answer is: The slope is -1, so any line with the same slope is parallel.

Step-by-step explanation:

Given points (2, -7) and (4, -9) find the slope, m:

m = y - y1 / (x - x1)

m = -7 - (-9)/(2 - 4)

m = -7 + 9/-2

m = 2/-2

m = -1

A parallel line is any line with the same slope which is -1.

Hope this helps! Have an Awesome day!! :-)

8 0

4 years ago

Can someone please help me with 3 and 4

Bess [88]

4 is a regular rhombus I think don't quote me on that. I am pretty sure though

5 0

3 years ago

Read 2 more answers

I WILL GIVE BRAINLIEST IF CORRECT !!!!

rosijanka [135]

Answer:

C. $3.2\times 10^{1}$

Step-by-step explanation:

$d_r$ = Diameter of a red blood cell = $0.0008\ \text{cm}$

$d_w$ = Diameter of a whooping cough virus = $2.5\times 10^{-5}\ \text{cm}$

Ratio of the diameter of the red blood cell to the diameter of the whooping cough virus

$\dfrac{d_r}{d_w}=\dfrac{0.0008}{2.5\times 10^{-5}}=\dfrac{0.0008}{25\times 10^{-6}}=\dfrac{0.0008\times 10^6}{25}\\\Rightarrow \dfrac{d_r}{d_w}=\dfrac{800}{25}\\\Rightarrow \dfrac{d_r}{d_w}=32=3.2\times 10^{1}$

The required ratio is $3.2\times 10^{1}$ .

4 0

3 years ago