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serg [7]
3 years ago
13

Pleaseeee help meeee

Mathematics
1 answer:
yan [13]3 years ago
4 0
Don’t really know if you still need help
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How to find the area and what’s the correct answer
kirill [66]
What you're seeing here is a rectangle attached to a semi-circle.

To find the area of a rectangle, multiply the length times the width. (lw)

To find the area of a semi-circle, use this formula:

\frac{1}{2} \pi \times {r}^{2}

To find your answer, first get the two dimensions of the rectangle

l = 7 \: w \:= 3

and multiply.

lw = 21

Now look at the semi-circle. We can see that it has a diameter of 3. Since the radius is equal to half, 1/2 the diameter, our radius is then 1.5.

\frac{1}{2} \times \pi \times {1.5}^{2}

We can also calculate this manually:

0.5 \times 3.14 \times 1.5 \times 1.5

Add the dimensions of both objects together now.

21 + 3.5325 = 24.5325 \: cm {}^{2}

Your geometric figure has a total area of 24.5325 cm.
3 0
4 years ago
Find the value of the discriminant and determine the number of real-number solutions for this quadratic equation. y^2+3y-4=0
Step2247 [10]
I hope this helps you



1.y^2+3y-4 =0


a=1


b=3


c= -4


disctirminant=b^2-4ac



disctirminant=3^2-4.1.(-4)


disctirminant=9+16


disctirminant=25
6 0
4 years ago
lines A and B are parallel,lines x and y are transversals. if angle 2 is 57 degrees and angle 3 is 85 degrees,find the measure o
Stella [2.4K]

Answer:

<h2>38</h2><h2 />

Step-by-step explanation:

see attached

7 0
4 years ago
4 trumpet players, 5 saxophone players, 2 keyboard players. What is the probability that no keyboard players are chosen in a ran
xxTIMURxx [149]

Answer: 20% (1/5)

Step-by-step explanation: There are 4 players and 1 chance of none chosen, and which 1/5 of it is when no key-players are chosen as there are 5 options. 1/5=20%

hope this helps

*plz mark as brainliest if correct*

4 0
3 years ago
Read 2 more answers
hey tutor do you know this? it says convert 0.05 to a fraction in simplest form and I just need the answer no explanation please
olga_2 [115]

Answer:

1/20

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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