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makvit [3.9K]
3 years ago
6

Need help on this thank you

Mathematics
2 answers:
Alexxx [7]3 years ago
8 0

Answer:

Step-by-step explanation:

using pythagoras formula

a^2+b^2=c^2

40^2+b^2=58^2

b^2=3364-1600

b=\sqrt{1764}

b=42 km

Vlad1618 [11]3 years ago
3 0

Answer:

42km

Step-by-step explanation:

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Can a quadrilateral be both a rectangle and a rhombus
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no, a rectangle must have 4 right angles and opposite sides are congruent

a rhombus must not have right angles and all sides are congruent

Step-by-step explanation:

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Susan works as a tutor for $10 and hour, and as a waitress for $11 an hour. This month, she worked a combined total of 90 hours
uysha [10]

Answer:

\$(990-t)

Step-by-step explanation:

The correct question is

Susan works as a tutor for $10 and hour, and as a waitress for $11 an hour. This month, she worked a combined total of 90 hours at her two jobs. Let t be the number of hours Susan worked as a tutor this month. Write an expression for the combined total dollar amount she earned this month

Let

t -----> the number of hours that Susan work as a tutor

y ----> the number of hours that Susan work as a waitress

z ---> the combined total dollar amount she earned this month

we know that

t+y=90

y=90-t-----> equation A

we know that

The combined total dollar amount she earned this month is equal to the number of hours that Susan work as a tutor multiplied by $10 plus the number of hours that Susan work as a waitress multiplied by $11

z=10t+11y ----> equation B

substitute equation A in equation B

z=10t+11(90-t)

z=10t+990-11t

z=990-t

therefore

The expression for the combined total dollar amount is $(990-t)

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Help will fine brainliest!!! The
mihalych1998 [28]

Hey there!

You can plug this into the slope equation to find the slope.

m= (y2-y1)/(x2-x1)

Plug in two points. I chose (0,4) and (1,7).

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m= (3)/(1)

m= 3

3 is your answer.

I hope this helps!

~kaikers

6 0
3 years ago
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