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balandron [24]
3 years ago
13

X-y=5 and x+y=-10 is this parallel, perpendicular, or neither?

Mathematics
1 answer:
tiny-mole [99]3 years ago
3 0

Answer:

Its perpendicular

Step-by-step explanation:

You can solve the equation to get x=-2.5 and y = -7.5 so they intersect there, but they intersect at 90 degrees so its perpendicular.

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What to the power of 4 equles 625
jeyben [28]

Answer:

5^4

Step-by-step explanation:

5x5x5x5=625

5 raised to the power of 4

4 0
3 years ago
Use SOHCAHTOA for this. Work out 'm' in 3sf, I need the working out.
Lady bird [3.3K]

Anwer:3.537m

STEP BY STEP EXPLANATIOND:using SOH CAH TOA

First find the opposite

Represent the opposite with x

Tan 33° =x\10

x=10Tan 33°

x=6.494

To find m

Sin 33°=m\6.494 Sin 33°

m=3.5368

m=3.537meteres

7 0
3 years ago
"In a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides."
Harlamova29_29 [7]

Answer:

C

Step-by-step explanation:

It is provable about 180 ways, some of them quite elegant. There was a book published in the 1940s listing what they then knew. Others have been added since and it shows up in the oddest places which you can search out.

That is interesting but it does not answer your question.

A: Nothing is defined. This statement is a truth, but unproved. A is not the answer.

B: No term requires defining unless you don't know what a hypotenuse is, but that is a separate problem.

D: a postulate is a statement that is true that cannot be proven nor does it need to be. There aren't that many around in math. Euclid said "All right angles are congruent." True and not needing proof.

C: It is a theorem. This is a statement that may not be obvious and does require proof.

6 0
3 years ago
What is the solution of log (3x+2) = log2 (4x-6)?<br> 08<br> 0-6<br> 08<br> 9
grin007 [14]

Answer:

The answer is 8.

5 0
3 years ago
A jacket at the store is being offered at a 25% discount. If the original price of the jacket is x, which answer choice shows an
Fofino [41]

Answer:

0.75x

Step-by-step explanation:

Given that :

Discount rate= 25%

Original price = x

Discounted price of jacket :

(100 - discount rate)% * original price

(100 - 25)% * x

75% * x

0.75x

3 0
2 years ago
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