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3 years ago

How do I solve this problem

Mathematics

2 answers:

DENIUS [597]3 years ago

7 0

The answer is 9 hours. You solve it by dividing 63 by 7.

Minchanka [31]3 years ago

6 0

9 hours........ because 7 miles per hour * 9 would be 63 miles and 1*9 = 9.

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I need helpppppppppppppppppp

notsponge [240]

Answer:

9×1=9

9×2=18

9×3=27

9×4=36

9×5=45

9×6=54

9×7=63

9×8=72

9×9=81

9×10=90

It goes down by 1 after multiplying a bigger number.

It goes up by 1 after multiplying a bigger number.

Step-by-step explanation:

hope this helps you and have a great day

4 0

2 years ago

It's a question from real and complex numbers which I can't solve. so someone PLZ HeLp

Semmy [17]

Answer:

$\frac{1}{5}$

Step-by-step explanation:

Using the rules of exponents

$a^{m}$ × $a^{n}$ = $a^{(m+n)}$ , $\frac{a^{m} }{a^{n} }$ = $a^{(m-n)}$ , $(a^m)^{n}$ = $a^{mn}$

Simplifying the product of the first 2 terms

$\frac{a^{p^2+pq} }{a^{pq+q^2} }$ × $\frac{a^{q^2+qr} }{a^{qr+r^2} }$

= $a^{p^2-q^2}$ × $a^{q^2-r^2}$

= $a^{p^2-r^2}$

Simplifying the third term

5( $(a^p+r)^{p-r}$

= 5 $a^{(p+r)(p-r)}$ = 5 $a^{(p^2-r^2)}$

Performing the division, that is

$\frac{a^{(p^2-r^2)} }{5a^{(p^2-r^2)} }$ ← cancel $a^{(p^2-r^2)}$ on numerator/ denominator leaves

= $\frac{1}{5}$

4 0

2 years ago

Please help I don’t understand

Sauron [17]

Answer:

-1.96312>-2.2360

Step-by-step explanation:

first find - $\sqrt{5}\\$

which is -2.2360679775

now round it to match the lenth of the other problem

-1.96312...

-2.2360...

now remember that the bigger the negitive number, the smaller it really is,

-1.96312>-2.2360

7 0

2 years ago

Read 2 more answers

Evaluate the expression (2x + y) - z when x= 3, y = 4, z =5

Lapatulllka [165]

Answer:

Step-by-step explanation:

(2x + y) - z

Let x=3 y=4 and z=5

2*3 +4 -5

Multiply and divide first

6 +4 -5

Then add and subtract

10-5

5 0

2 years ago

Can someone answer it please I really need help please I need it right now I was so frustrating please help and please show work

Eduardwww [97]

Answer:

2 1/4 yards above sea level

Step-by-step explanation:

The midpoint elevation is the average of the endpoint elevations, their sum divided by 2. When elevation is below sea level, it is represented by a negative number.

(17 3/4 - 13 1/4)/2 = (4 2/4)/2 = 2 1/4 . . . yards above sea level

8 0

2 years ago