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adelina 88 [10]
3 years ago
6

Please help quick!!!!!!!!!!

Mathematics
2 answers:
larisa [96]3 years ago
8 0

Answer:

Step-by-step explanation:

Un-shaded area = 3.14 x 2 squared = 12.56

Shaded area = (3.14 x 4 squared) - Area of un-shaded area

= 50.24 - 12.56 = 37.68

Brums [2.3K]3 years ago
3 0

Answer:

37.68 sq cm

Step-by-step explanation:

Area = pi x r²

Area shaded    = area whole circle minus area white circle

pi x 4² -pi x 2²

pi x 16 - pi x4

pi(16-4)

pi(12)

3.14 x 12 = 37.68

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igomit [66]
Definition of angle bisector. we are given thatBD bisects angle ABC. that means it cuts it into 2 equal angles. angles ABD and CBD are these 2 angles
4 0
3 years ago
Help me plz idk why im very bad at mmath
MissTica

Answer:

16.8

Step-by-step explanation:

Hope this helps

6 0
3 years ago
How do you solve by elimination/linear combination. <br>a. 3x+4y=17 <br> 5x-4y=7
r-ruslan [8.4K]
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5 0
3 years ago
110 +0.70x = 50+ 0.90x​
timurjin [86]

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{x = 300}}}}}

Step-by-step explanation:

\sf{110 + 0.70x = 50 + 0.90x}

Move 0.90x to left hand side and change it's sign

⇒\sf{0.70x - 0.90x + 110 = 50}

Move 110 to right hand side and change it's sign

⇒\sf{0.70x - 0.90x = 50 - 110}

Collect like terms

⇒\sf{ - 0.2x = 50 - 110}

Calculate

⇒\sf{ - 0.2x =  - 60}

Divide both sides of the equation by -0.2

⇒\sf{ \frac{ - 0.2x}{ - 0.2}  =  \frac{ - 60}{ - 0.2} }

Calculate

⇒\sf{x = 300}

Hope I helped!

Best regards!!

5 0
3 years ago
The rate of change in y = 24x
Artyom0805 [142]

Answer:

24

Step-by-step explanation:

Using the formula y = mx + b we can find the slope or rate of change. First we must convert it into the formula or equation we currently have which is y = 24x + 0.

24 = m

x = x

0 = b

m is always the rate of change or slope so by finding m we find the slope or rate of change.

5 0
3 years ago
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