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3 years ago

Pls help because I’m not sure

Mathematics

1 answer:

leva [86]3 years ago

8 0

Step-by-step explanation:

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55.8 is 62% of what number?

zhenek [66]

90

55.8 /? = 62/100
55.8 x 100= 62 x ?
5580=62 x ?
5580/62 = ?
?=90

7 0

3 years ago

Find the lengths of the missing side . Simplify all radicals !!!<br> help mee!!!!!!

larisa86 [58]

Answer:

$e = 13\sqrt{2}$

$f = 13\sqrt{2}$

Step-by-step explanation:

The ∆ given is an isosceles ∆ with a right angle measuring 90°, and two congruent angles measuring 45° each.

Using trigonometric ratio formula, we can find the lengths of the missing side as shown below:

Finding e:

$sin(\theta) = \frac{opp}{hyp}$

$sin(\theta) = sin(45) = \frac{\sqrt{2}}{2}$

hyp = 26

opp = e = ?

Plug in the values into the formula

$\frac{\sqrt{2}}{2} = \frac{e}{26}$

Multiply both sides by 26

$\frac{\sqrt{2}}{2}*26 = \frac{e}{26}*26$

$\frac{\sqrt{2}}{2}*26 = e$

$\frac{\sqrt{2}}{1}*13 = e$

$13\sqrt{2} = e$

$e = 13\sqrt{2}$

Since side e is of the same length with side f, therefore, the length of side f = $13\sqrt{2}$

3 0

3 years ago

Find the value of x and y in parallelogram WXYZ.

navik [9.2K]

Answer:

x = 13, y = 7

Step-by-step explanation:

The diagonals of a parallelogram bisect each other, thus

x - 7 = 6 ( add 7 to both sides )

x = 13

and

2y - 6 = 8 ( add 6 to both sides )

2y = 14 ( divide both sides by 2 )

y = 7

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3 years ago

What is the absolute value of -7.8

borishaifa [10]

Answer:

| -7.8. | = 7.8

Step-by-step explanation:

The symbol for absolute value is two straight lines surrounding the number or expression for which you wish to indicate absolute value.

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3 years ago

A grain of rice average weight is about 25 milligrams or 0.025 grams. Which of the following shows the weight in grams in scient

zavuch27 [327]

Answer:

2.5x10⁻2

Step-by-step explanation:

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3 years ago