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Setler [38]
2 years ago
12

PLS HELP ASAP IM BAD AT ALGEBRA! evaluate the expression when x=10, y=-2, and z=-5 | xz÷-y |

Mathematics
2 answers:
Elza [17]2 years ago
5 0
Answer = 10x-5 divided by -2
-50 / -2 = 25
Aneli [31]2 years ago
3 0
(10)(-5)=50
50\-2=-25
|-25|=25
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Plz prove this for me.....
s344n2d4d5 [400]

I've answered your other question as well.

Step-by-step explanation:

Since the identity is true whether the angle x is measured in degrees, radians, gradians (indeed, anything else you care to concoct), I’ll omit the ‘degrees’ sign.

Using the binomial theorem, (a+b)3=a3+3a2b+3ab2+b3

⇒a3+b3=(a+b)3−3a2b−3ab2=(a+b)3−3(a+b)ab

Substituting a=sin2(x) and b=cos2(x), we have:

sin6(x)+cos6(x)=(sin2(x)+cos2(x))3−3(sin2(x)+cos2(x))sin2(x)cos2(x)

Using the trigonometric identity cos2(x)+sin2(x)=1, your expression simplifies to:

sin6(x)+cos6(x)=1−3sin2(x)cos2(x)

From the double angle formula for the sine function, sin(2x)=2sin(x)cos(x)⇒sin(x)cos(x)=0.5sin(2x)

Meaning the expression can be rewritten as:

sin6(x)+cos6(x)=1−0.75sin2(2x)=1−34sin2(2x)

3 0
3 years ago
5x+21+178/(x-7)<br> How do I solve for domain and range on this equation?
Luda [366]
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For range, you are trying to find out what are the possible answers. Usually the best way to do this is to try x=infinity, and x=negative infinity, which here gives you answers of infinity and negative infinity. Since the function is almost continuous, I think your range is any real number.
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** ANSWER ASAP **<br><br><br>am i correct?
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Answer:

Correct option is (A).

Step-by-step explanation:

BECAUSE,

# Supplementary means whose sums are 180°.

# 1 and 3; 2 and 4 are not supplementary.

#$# HOPE YOU UNDERSTAND #$#

#$¥ THANK YOU ¥$#

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lina2011 [118]

Answer:

6) 9 7) 8 8) 7 9) 9

Step-by-step explanation:

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Ken grew 4/5 of an inch last year. Sang grew 3/8 of an inch. Who grew more and by how much?
bonufazy [111]
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Read 2 more answers
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