Ask question

Ask question

All categories

3 years ago

7

I need help with my homework ASAP

1 answer:

Nadya [2.5K]3 years ago

6 0

Answer:

<u>100 degrees</u>

Step-by-step explanation:

y = ½ (b + x)

80 = 1/2(60 + x)

80 = 30 + x/2

50 = x/2

x/2 = 50

x = 100

<u>This means that the value of x in this picture is 100 degrees</u>

You might be interested in

For an art project, Jack used a piece of rope that was of a foot long. Daniel used a piece of rope that was 5 times as long. How

Lemur [1.5K]

5 feet

Explanation:
If jack had a 1 foot long piece of rope than we can simply multiply 1 by 5 and we get 5. Hope this helps!

8 0

3 years ago

11 POINTS PLZ HELP EMERGENCY

Bad White [126]

Part A

The given expression is:

$(-5(1+2i)+3i(3-4i)$

We expand to get:

$-5-10i+9i-12i^2$

Note that $i^2=-1$

$12-5-10i+9i$

$-5-10i+9i+12$

$7-i$

Part Bi)

The given expression is;

$\sqrt{-50}$

We simplify to get:

$\sqrt{25\times 2\times -1}$

$\sqrt{25\times} \sqr{2}\times \sqrt{-1}$

Note that:

$\sqrt{-1}=i$

$5\sqr{2}i$

This is now of the form $a+bi$ , where $a=0,b=5\sqr{2}$ .

This explains why it is a complex number;

Part bii)

The given expression is :

$\frac{\sqrt{-50} }{\sqrt{5}}$

We simplify to get

$\sqrt{\frac{-50 }{5}}$

$\sqrt{-25}$

$\sqrt{-25}=\sqrt{25}\times \sqrt{-1}$

$\sqrt{-25}=5\times i$

$\sqrt{-25}=5i$

Part C

We want to simplify:

$i^{22}$

We rewrite in terms of $i^2$

$i^{22}=(i^2)^{11}$

$i^{22}=(-1)^{11}$

$i^{22}=-11$

5 0

4 years ago

Hailey wants to buy a new pair of Vans. She found them on-line for $70. If the site is offering 15%

musickatia [10]

Answer:

It's $56 dollars

Step-by-step explanation:

$56 dollars, because I think 20% is like 14 dollars so then that gives you 70 and then you do 70 minus 14 and then that gives you 56 dollars

6 0

3 years ago

Read 2 more answers

I would like to know how to solve this problem.

Darya [45]

Answer: 9

Step-by-step explanation:

$g(-5)=\frac{-5}{5}=-1\\\\(f\circ g)(-5)=f(g(-5))=f(-1)=-3(-1)+6=\boxed{9}$

8 0

2 years ago

Ira built a model of the Great Pyramid in Egypt for a school project.The Great Pyramid has a square base with sides of length 75

sweet-ann [11.9K]

Are you trying to find the height and length of the model?

7 0

3 years ago