1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
adoni [48]
3 years ago
13

Cho hình chóp SABC có đáy ABC là tam giác đều cạnh a tam giác SAB vuông cân tại s và nằm trong mặt phẳng vuông góc với mặt phẳng

đáy cosin của góc giữa đường thẳng SC và mặt phẳng SAB bằng
Mathematics
1 answer:
Leviafan [203]3 years ago
7 0

Answer:

I dont understand what you are saying sorry

You might be interested in
Solve for x and y:<br> x = 5 – 2y<br> 4y = 15 - 2x
Vika [28.1K]

Answer:

No solution.

Step-by-step explanation:

So we have the system of equations:

x=5-2y\\4y=15-2x

We can solve this by substitution. Substitute the first equation into the second. Thus:

4y=15-2(5-2y)

Distribute the right:

4y=15-10+4y

Subtract 4y from both sides:

0=15-10

Subtract the right:

0=5

As you can see, this statement is not true. In other words, the system of equations have no solution (likely because the lines are parallel).

And we're done!

7 0
3 years ago
(x+6)(x-4)=
dalvyx [7]

Answer

1. x²+2x-24

2. 2x²-1x-15

3. 6x²+19x+10

4. 2x²-11x+5

5 0
3 years ago
Read 2 more answers
Help me find weather or not these sides satisfy the triangle
schepotkina [342]

Answer:

No, the sides do not satisfy the triangle.

Step-by-step explanation:

OK, so you can use either use the Pythagorean Theorem or the 45-45-90 Triangle Theorem to find the answer to the question. I am going to use both in this explanation to help you see how they can be used.

Pythagorean Theorem:

a^{2}+b^{2}=c^{2}

45-45-90 Triangle Theorem:

a = b and c=a\sqrt{2} or b\sqrt{2}

Use Pythagorean Theorem:

So a=2\sqrt{3}, b=2\sqrt{3}, and c=6.

(2\sqrt{3})^{2}+(2\sqrt{3})^{2}=6^{2} ?

(4×3) + (4×3) = 36 ?

12 + 12 ≠ 36

24 ≠ 36

Sides do not satisfy the triangle.

Use 45-45-90 Triangle Theorem:

6=2\sqrt{3} \sqrt{2} ?

6=2\sqrt{6} ? no

Sides do not satisfy the triangle.

8 0
3 years ago
How many solutions with an equation have with the same slop and different y intercepts
Karolina [17]
I don’t know this answer I’m sorry I hope someone helps you
4 0
3 years ago
Jane biked 34 miles in 2 hours. At this rate, how far could she bike in 5 hours?
Assoli18 [71]
85 because 34 divided by 2 is 17 which means hes going 17 an hour. 17 times 5 is 85.
3 0
4 years ago
Read 2 more answers
Other questions:
  • Use the graph to determine the input values that correspond with f(x) = 1.
    11·1 answer
  • Can you draw quadrilateral with two sets of parallel lines and no right angles and what does it look like
    5·1 answer
  • According to the rational root theorem which answer is not a possible rational root of 4x3
    15·1 answer
  • The grocery store sells kumquat for $4.50 a pound and Asian pears for $3.75 a pound write an equation in standard form for the w
    14·2 answers
  • The answers are:<br> 1.73 miles<br> 2.65 miles<br> 3.16 miles<br> 4.58 miles<br> Thanks!
    8·1 answer
  • I need help fast plz
    7·1 answer
  • PLEASE PLEASE PLEASE HELP!!
    8·1 answer
  • NEED ASAP
    11·2 answers
  • What is the probability of a baseball player getting three hits in a row if his batting average is 17.9%?
    14·1 answer
  • Is ALMNS AOPQ? If so, name the congruence postulate that applies.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!