3 years ago

Please Help!?

Mathematics

2 answers:

White raven [17]3 years ago

7 0

number 48 looks correct

Pepsi [2]3 years ago

3 0

2. 3x45y+3+4 hope that helps i don’t know any others

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Round 425 to the nearest ten and to nearest hundred

Sladkaya [172]

Answer:

430;400

Step-by-step explanation:

So tenth is the 2.. 5 makes it go to 3 430

hundred we look to change 4 so we look at tenths 2 is less than 5 so it stays the same 400

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4 years ago

How to find the area of a circle<br>

Keith_Richards [23]

Answer:

Area = π r^2.

Step-by-step explanation:

Given the radius r of a circle, the area = π r^2.

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3 years ago

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Suppose it costs $45 to attend a concert where the band plays for 1.5 hours.

Effectus [21]

Answer

$30 minutes per hour

$0.5 per minute

Step-by-step explanation:

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2 years ago

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AB is tangent to the circle at B. M∠A=40 and mBC=130. <br> a. Find x <br> b. Find y

soldi70 [24.7K]

The values for x and y are respectively given as

x = 50
y= 90

This is further explained below.

<h3>What is the values for x and y ?</h3>

Generally, the equation for secent is mathematically given as

$secent = \frac{big arc - small arc}{2}$

Therefore

$40 = \frac{130-x}{2}$

80 = 130-x

x = 50

b) To Solve for y Now we find a measure of arc CD

ArcCD = 360-130-50

ArcCD = 180

In conclusion,(1/2) of the arc measure is equal to the angle that is on and inside a circle.

y = 180/2

y= 90