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2 years ago

Please help!!will give brainliest!

Mathematics

2 answers:

shutvik [7]2 years ago

7 0

Answer:

Step-by-step explanation: the answer is probably 50 because the bottom line is the same length as the other 50.

Natali [406]2 years ago

4 0

Answer: 45

(Read the explanation to make sure it is correct)

Step-by-step explanation:

Let's start with what we know. Since the sum of all angles in a triangle add up to 180, we can use that logic to find the last angle in the triangle. So far, we have:

85 + 50 + x = 180

We subtract 135 from both sides to get:

x = 45!

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Express x in terms of a, b, and c.<br> X =

Vaselesa [24]

Answer:

$\frac{ac}{a+b} .$

Step-by-step explanation:

1) Δ ADE ~ Δ ABC, then

$\frac{AE}{AC} =\frac{DE}{BC}$ ⇒ $\frac{x}{c} =\frac{a}{a+b};$

$2) \ finally, \ x=\frac{ac}{a+b} .$

8 0

2 years ago

How do you do 17-24 and what are the answers

crimeas [40]

Answer:

-7

Step-by-step explanation:

:))

7 0

3 years ago

Read 2 more answers

Help Please with these

77julia77 [94]

Problem 17

Focus on one of the triangles. It has legs of 8 and 15. Use the pythagorean theorem to find the hypotenuse is 17.

Basically you're solving for c in a^2+b^2 = c^2. Use a = 8 and b = 15.

The diameter is 17 and the circumference is

C = pi*d = pi*17 = 17pi

<h3>Answer: 17pi</h3>

==============================================

Problem 18

This figure has four faces, so this is a tetrahedron. The "tetra" is greek that translates to "four".

Another possible name for this figure is triangular pyramid because we have a pyramid with a triangular base.

<h3>Answer: Triangular pyramid or tetrahedron</h3>

3 0

3 years ago

(cos x - (sqrt 2)/2)(sec x -1)=0

Darya [45]

$(\cos x-\frac{\sqrt{2}}{2})(\sec x-1)$ =0 [/tex]

$=(\cos x-\frac{1}{\sqrt{2}})(\sec x-1)$ =0 [/tex]

$\frac{(\sqrt{2}\cos x-1)}{\sqrt{2}}(\frac{1}{\cos x\ }-1)=0$

(Reciprocal Identity)

$(\frac{^{\sqrt{2}\\cos x-1}}{^{\sqrt{2}}})(\frac{1-\cos x}{\cos x})=0$

$\frac{^{(\sqrt{2}\cos x-1})}{\sqrt{2}}\frac{(1-\cos x)}{\cos x}=0$

$(\sqrt{2}\cos x-1}){(1-\cos x)}=0$ (ZeroProduct Property)

$\sqrt{2}\cos x-1=0$

$\sqrt{2}\cos x=1$

$\cos x=\frac{1}{\sqrt{2}}$

$x=\frac{\Pi }{4}$

and

$1-\cos x=0$

$\cos x=1$

$x=0$

x=0 and x= $\frac{\Pi }{4}$ are the solutions.

6 0

4 years ago

Read 2 more answers

The table shows the transportation method of employees at a certain company. What percent of the employees walk to work?

stiks02 [169]

Answer:

5 percent

Step-by-step explanation:

The reason why its five percent is because the statement is saying that 7 walked which makes the lowest percent of walking. There are other people in cars and some others

6 0

4 years ago

Please help!!will give brainliest!​

Please help!!will give brainliest!