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qwelly [4]
3 years ago
7

Find the missing length

Mathematics
2 answers:
SVEN [57.7K]3 years ago
7 0

The\: missing\: length\: is\: 5

leonid [27]3 years ago
4 0

Answer:

? = 5

Step-by-step explanation:

Since the figures are similar then the ratios of corresponding sides are equal, that is

\frac{21}{7} = \frac{15}{x} ( cross- multiply )

21x = 105 ( divide both sides by 21 )

x = 5

That is ? = 5

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antiseptic1488 [7]
90-48 = 42
3 units = 42
1 unit = 14
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3 years ago
Charlene is knitting a baby blanket. She wants its width, w, to be at least half its length, l. She estimates that she has enoug
zepelin [54]

Answer:

W > 0.5L

Perimeter:

2L + 2W < 180

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3L < 180

÷3       ÷3

 L < 60

Length should be less than or equal to 60 inches while width should be greater than or equal to 30 inches.

4 0
3 years ago
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sattari [20]
X the length of the bounce is 25
5 0
2 years ago
Find the missing side lengths. Leave your answer as radicals in simplest form.
Ronch [10]

Answer:

Hence x = y = 2

Step-by-step explanation:

Using the SOH CAH TOA identity

Hypotenuse = 2√2

Opposite = x

theta = 45

Sin theta = opp/hyp

Sin 45 =x/2√2

1/√2 = x/2√2

x = 2√2 * 1/√2

x = 2

To get y we will use the pythagoras theorem;

(2√2)² = x² +y²

(2√2)² = 2²+y²

8 = 4 + y²

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y² = 4

y = √4

y = 2

Hence x = y = 2

7 0
3 years ago
What is the average of -2.6, 1.8, -3.3, -2.7, 2.2 ?<br> I dont understand this.
olya-2409 [2.1K]
Average = Mean

To find the mean, add up the numbers and divide it by how many numbers there are.

So,  -2.6+1.8+(-3.3)+(-2.7)+2.2=-4.6

There are 5 numbers in total.

-4.6 \div 5=-0.92

To do these types of division, ignore the decimal and add a 0 at the end.

So we can do:
-460\div5=-92

And put back the decimal.
Hope this helps :)
4 0
3 years ago
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