3 years ago

I WILL MARK BRAINLIEST TO 1ST ANSWER

Mathematics

2 answers:

nalin [4]3 years ago

6 0

I believe its
7*4*3.5=28*3.5=98

Anettt [7]3 years ago

4 0

Answer:

It is actually 91 not 98.. your welcome :D

Step-by-step explanation:

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Solve 2csc^2x-2cscx-1=0 <br> for 0° ≤ x ≤ 360°

umka21 [38]

Answer:

Step-by-step explanation:

2 csc²x-2 csc x-1=0

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6 0

2 years ago

How many minutes he does arm routine and abdominal routine

AlekseyPX

Let $x$ be the amount of time it takes to perform an arm routine and $y$ be the amount of time it takes to perform an abdominal routine. We see:

$4x+y=70$
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Subtracting the second equation from the first gives $y=30$ . Substituting gives $4x+30=70$ , so $4x=40$ and $x=10$ .

Thus, an arm routine takes ten minutes and an abdominal routine takes thirty minutes.

5 0

3 years ago

Karin wants to use the distributive property to mentally find the value of 19⋅42+19⋅58. Which expression can she use?

devlian [24]

Answer:

$19( 42+ 58)$