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Dimas [21]
3 years ago
9

Which equation can be used to prove 1 + tan?(x) = sec2(x)?

Mathematics
1 answer:
Elodia [21]3 years ago
4 0

Answer: D

Step-by-step explanation:

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Solving a system of linear equations using the substitution method. <br> 5x+4y=-26<br> 5-x=-6y
yan [13]
Solve for x in 2nd equation
times -1 both sides
x-5=6y
add 5
x=6y+5

sub

5(6y+5)+4y=-26
30y+25+4y=-26
34y+25=-26
minus 25 both sides
34y=-51
divide both sides by 34
y=-3/2
sub back

x=6y+5
x=6(-3/2)+5
x=-18/2+5
x=-9+5
x=-4


(-4,-3/2) is solution
5 0
3 years ago
Read 2 more answers
What’s 6 times 251 in expanded form? HELP!!
kramer

Answer:

1506

Step-by-step explanation:

1,506 = (1 x 1000) + (1 x 00) + (0 x 0) + (6 x 1)

8 0
3 years ago
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The perimeter of a rectangle is 141 feet, and the length is twice the width. What are the dimensions of the rectangle?
JulijaS [17]
Widths = 23.5feet
Lengths = 47feet
23.5 + 23.5 + 47 + 47 = 141
3 0
3 years ago
Jerome photographed an aquarium that measured 12 inches by 18 inches by 24 inches. Lim photographed an aquarium that was 12 inch
8090 [49]

Answer:

the answer is 864 in3

Step-by-step explanation:

Jerome photographed an aquarium that measured 12 inches by 18 inches by 24 inches.

So V=LxWxH....

12 x 18 x 24= 5,184

Then...

Lim photographed an aquarium that was 12 inches by 30 inches by 12 inches.

So= V=LxWxH

12 x 30 x 12=4,320

And they need to see who has more so 5,184-4,320=864in3

I hope this helps also Into Math said it was correct :)

6 0
3 years ago
What is 8 - (0.8 + 0.008)
suter [353]
The answer is 7.192 :)
5 0
3 years ago
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