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3 years ago

Help me on this ASAP Free 10 points just help me do this

Mathematics

2 answers:

ira [324]3 years ago

7 0

Part a) How are L, W and related?

we know that
in the rectangle of the figure
applying the Pythagoras theorem
d²=W²+L²

the answer part a) is
W²+L²=d²

Part b) If L is 7 units long and W is 5 units long How long is the diagonal to the nearest tenth
d²=W²+L²
W=5 units
L=7 units
so
d²=5²+7²-----> d²=25+49-----> d²=74-----> d=√74----> d=8.6 units

the answer part b) is 8.6 units

alexandr1967 [171]3 years ago

4 0

Answer:

we know that

in the rectangle of the figure

applying the Pythagoras theorem

d²=W²+L²

the answer part a) is

W²+L²=d²

Part b) If L is 7 units long and W is 5 units long How long is the diagonal to the nearest tenth

d²=W²+L²

W=5 units

L=7 units

d²=5²+7²-----> d²=25+49-----> d²=74-----> d=√74----> d=8.6 units

the answer part b) is 8.6 units

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3 years ago

Mrs. Nguyen used 1.48 meters of netting to make 4 identical mini hockey goals. How much netting did she use per goal?

snow_tiger [21]

0.37 meters of netting

<h3>Further explanation</h3>

<u>Given:</u>

Mrs. Nguyen used 1.48 meters of netting to make 4 identical mini hockey goals.

<u>Question:</u>

How much netting did she use per goal?

<u>The Process:</u>

We will solve the problem of conversion or in other words the ratio or proportion.

Option A: the conversion

Mrs. Nguyen used 1.48 meters of netting to make 4 identical mini hockey goals.

Then for every 1 goal, she needs 0.37 meters of netting.

Because $\boxed{ \ 1 \ goal \times \frac{1.48 \ meters}{4 \ goals} = 0.37 \ meters \ of \ netting.}$

Option B: the ratio (or proportion)

In the ratio, we process as follows:

$\boxed{ \ 4 \ goals : 1.48 \ meters \ of \ netting \ }$

Both are divided by 4.

$\boxed{ \ 1 \ goals : 0.37 \ meters \ of \ netting \ }$

Thus, she uses 0.37 meters of netting per goal.

Alternative problem

How much netting did she use for 8 goals?

$\boxed{ \ 8 \ goal \times \frac{1.48 \ meters}{4 \ goals} = \ ? \ }$ meters of netting.

We cross out eight and four because they can be divided.

$\boxed{ \ 2 \times 1.48 \ meters = 2.96 \ meters \ of \ netting. \ }$

She uses 2.96 meters of netting to make 8 identical mini hockey goals.

<h3>Learn more</h3>

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Keywords: Mrs. Nguyen, 1.48 meters of netting, to make 4 identical mini hockey goals, how much netting, she uses per goal, conversion, the ratio, proportion

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