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puteri [66]
3 years ago
5

Will give brainliest to right answer

Mathematics
1 answer:
Sladkaya [172]3 years ago
7 0

Answer:

D

Step-by-step explanation:

Area of rectangle: 6 x 4 = 24

Area of triangle: 4(4)/2 = 8

Area of semi-circle: (πr²2)2 = 2π ≈ 6.28

24 + 8 + 6 = 38

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A triangle has two congruent sides that measure 8.7 cm and 12.3 cm. Which could be the measure of the third side
stich3 [128]

Answer:

Option C. 15 cm

Step-by-step explanation:

The correct question is

A triangle has two sides that measure 8.7 cm and 12.3 cm. Which could be the measure of the third side?

A. 2.6 cm

B. 3.6 cm

C. 15 cm

D. 21 cm

we know that

The Triangle Inequality Theorem states that the sum of any 2 sides of a triangle must be greater than the measure of the third side

Analyze two cases

Let

x ----> the length of the third side

First case

x+8.7 > 12.3

x>12.3-8.7

x> 3.6 cm

Second case

12.3+8.7 > x

21 > x

Rewrite

x < 21 cm

5 0
3 years ago
Is 3(5b - 2) and 8b - 5 equivalent
ch4aika [34]

Answer:

No

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
If abcd is dilated by a factor of 3, the coordinate of a would be?
Mekhanik [1.2K]
Vvvgggggggggggghgghv
6 0
1 year ago
The slope of the line whose equation is 3x - 2y = 4 is 2/3 3/2 -2
alexandr1967 [171]
Solve for "y" and you get y=3x/2-2 and the equation for a line is y= mx+b, I mean the slope is the number which companion the "x" in the line equation, so the slope in your problem is 3/2
4 0
2 years ago
Which statement explains how the lines 2x + y = 4 and y = one halfx + 4 are related?
KatRina [158]

Answer:

They are perpendicular

Step-by-step explanation:

To solve this problem .

we will convert the equations in slope intercept form.

Slope intercept  form of equation is y = mx+c

where m is slope of line and c is y intercept.

________________________________

equation 1 is

2x+y = 4

=> y =4 - 2x or y = -2x + 4

comparing it with y = mx + c

m = -2  , c = 4

_________________________________________

equation 2 is y = one halfx + 4 ( one half is same as 1/2)

so equation is

y = x/2 +4

comparing it with y = mx + c

m = 1/2  , c = 4

_________________________________________

Now lets evaluate options

They are parallel.  wrong option

For lines to be parallel slope should be same.

But here slope are different -2 and 1/2 .

Thus lines are not parallel.

__________________________________________

They are perpendicular.  correct option

For lines to be perpendicular, product of slope should be equal to -1.

-2*1/2 = -1

we can see that product of slope should be equal to -1 .

Thus lines are  perpendicular

______________________________________

They are the same line.  wrong option

For lines to be same both slope and y intercept should  be same.

Y intercept is same but the slopes are different -2 and 1/2  .

Thus lines are not  the same line.

__________________________________________

They are not related.       wrong option

As we have found that the lines are perpendicular .

So this option is intuitively wrong

4 0
3 years ago
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