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ivolga24 [154]
3 years ago
7

|-1.43| - 7.1 + |-1.21| answer please

Mathematics
1 answer:
stellarik [79]3 years ago
8 0

Hello.

Numbers with | | around them are the absolute value, meaning it is always positive.

|-1.43| and |-1.21| become 1.43 and 1.21

The equation is now 1.43 - 7.1 + 1.21

Solve.

1.43 - 7.1 + 1.21

-5.67 + 1.21

-4.46

-4.46 is the final answer.

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Fantom [35]

Answer:

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8 0
2 years ago
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I need some help on this math problem, thanks so much
bekas [8.4K]

Answer:

The answer is C.

Step-by-step explanation:

Hit 'em with the Law of Sines.

sin(A)/a = sin(B)/b.

Let's say x is equal to "A", thus 5 is "a".

sin(x)/5 = sin(B)/b.

We could go for the obvious choice for "B", which would be the 90 degrees shown. To solve for the hypotenuse which will be "b", let's use the Pythagorean Theorem:

a^2 + b^2 = c^2

5^2 + 20^2 = c^2

25 + 400 = 425

sqrt(425) = about 20.6, which we can now substitute "b" with.

sin(x)/5 = sin(90)/20.6

sin(x)/5 = 1/20.6

sin(x)/5 = 0.04854...

sin(x) = 0.2427...

You can plug in sin^-1(0.2427) into your calculator, and you should end up with something like 14.047... which equates to answer choice C.

6 0
3 years ago
A fruit punch recipe calls for 3/4 cup of pineapple juice and 1 1/2 cups of orange juice. I have 4 1/2 cups of pineapple juice a
givi [52]

Answer: If the recipe wants 3/4 cup of pineapple juice for every 6/4 cups of orange juice, 18/4 is 6x more than the recipe so 6/4 must be 6x larger too.

6 x 3/2 = 18/2 or 9 cups of orange juice. Hope this helps :) Please mark brainliest if you can ;)


6 0
3 years ago
Find the acute angle
Scrat [10]

Answer:

22°

Step-by-step explanation:

Since the triangle is right use the sine ratio

sinQ = \frac{opposite}{hypotenuse} = \frac{7}{19}, hence

Q = sin^{-1}(\frac{7}{19}) = 22° ( nearest degree )

5 0
3 years ago
Read 2 more answers
HELP AHHH I NEED HELP. SORRY AH
Paraphin [41]

Answer:

3.77

Step-by-step explanation:

A= L × W

52=(W + 10)W

52= W^2 + 10W

0 = W^2 + 10W - 52

Factor from here using quadratic formula to find the roots:

W = 3.77

or

W = -13.77

Dimensions of a shape cannot be negative, therefore it's approximate width is 3.77yd.

7 0
3 years ago
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