3 years ago

Help Me Please I need to do this for school

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

8 0

Answer:

3 hours

I hope its right

hodyreva [135]3 years ago

4 0

Answer:

He worked for 3 hours.

Step-by-step explanation:

you can solve this by muiltipling the amount of hours by the kilograms done in an hour.

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What does AD equal? PICTURE INCLUDED* Triangle congruence and similarity.

mafiozo [28]

Answer:

AD = 7

Step-by-step explanation:

Given that the two triangles are similar by the SSS (side side side) postulate, the triangles share the same ratios when it comes to their sides.

We know the values for lines DB, EB and CB, therefore we can solve for AB, and subtract DB to find AD

We can solve the problem by solving for x:

$\frac{x}{32} =\frac{21}{24}$

Cross multiply.

$24x = 672$

Simplify.

$x=28$

Subtract the value of DB to find AD.

$28-21=7$

$AD=7$

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3 years ago

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Step-by-step explanation:

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3 years ago

Find the surface area of the pyramid. The side lengths of the base are equal.

Pachacha [2.7K]

Answer:

A = 177.46

Step-by-step explanation:

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A = 6*6+6root((6/2)^2+11.4^2)+6root((6/2)^2+11.4^2)

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2 years ago

Read 2 more answers

2. What is the length of the horizontal line segment joining points C(-9,205) and D(4,205)?

arsen [322]

Answer:

13 unit

Step-by-step explanation:

................

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3 years ago

What is the value of x in this simplified expression

arsen [322]

Answer:

Step-by-step explanation:

(-j)^-7 = 1/(-j)^x

Changing LHS as

1/(-j)^7 = 1/(-j)^x

Comparing LHS and RHS

x = 7

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