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Svetach [21]
3 years ago
11

All of these statements are true EXCEPT which one? A.​

Mathematics
2 answers:
stiv31 [10]3 years ago
8 0

Answer:

where's the choices

Step-by-step explanation:

complete your question

Zolol [24]3 years ago
6 0

Answer:

Optio a is rhe right one

i m not sure

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The area of the shaded segment is 100cm^2. Calculate the value of r.
Reil [10]
Hello, 

The formula for finding the area of a circular region is: A=  \frac{ \alpha *r^{2} }{2}

then:
A_{1} = \frac{80*r^{2} }{2}

With the two radius it is formed an isosceles triangle, so, we must obtain its area, but first we obtain the height and the base.

cos(40)= \frac{h}{r}  \\  \\ h= r*cos(40)\\ \\ \\ sen(40)= \frac{b}{r} \\ \\ b=r*sen(40)

Now we can find its area:
A_{2}=2* \frac{b*h}{2}  \\  \\ A_{2}= [r*sen(40)][r*cos(40)]\\  \\A_{2}= r^{2}*sen(40)*cos(40)

The subtraction of the two areas is 100cm^2, then:

A_{1}-A_{2}=100cm^{2} \\ (40*r^{2})-(r^{2}*sen(40)*cos(40) )=100cm^{2} \\ 39.51r^{2}=100cm^{2} \\ r^{2}=2.53cm^{2} \\ r=1.59cm

Answer: r= 1.59cm
7 0
3 years ago
Read 2 more answers
40 POINTS AND BRAINLIEST ANSWER!<br> you have to match which ones they go to
Yuliya22 [10]
Seconded to the bottomed is symmetric property of equality 
bottomed one is substitution property of equality
first one is reflexive property of equality <span />
8 0
3 years ago
Let a = -4.82 and b = 4.35. All of the following statements are true except
kolezko [41]

Answer:

the sum of -4.82 and 4.35 = -0.47

so a is correct

the product of -4.82 and 4.35 = -20.967

so b is incorrect

the quotient of -4.82 and -4.35 is 1.10804597701

the quotient of 4.82 and 4.35 is 1.10804597701

so c is correct

if we subtract 4.35 from -4.82 we get -9.17

so d is incorrect

Hope This Helps!!!

6 0
3 years ago
Question 1 (1 point)
Karo-lina-s [1.5K]

Answer:

ok

Step-by-step explanation:

4 0
2 years ago
Graph the line y=-2x-3
Elina [12.6K]

Answer:

See attached picture.

Step-by-step explanation:

To graph the line, start at (0,-3) since b = -3 in the equation. This is the y-intercept. Mark this point. From this point, move down 2 units and to the right 1 unit. Mark this new point at (1,-1). Connect the points with a line. See attached picture.

7 0
3 years ago
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