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Fudgin [204]
3 years ago
13

Round your answer to the nearest hundredth.

Mathematics
1 answer:
netineya [11]3 years ago
7 0

Answer:

200  rounded to the nearest hundredth

Step-by-step explanation:

Acute is about 30 degrees so 30+30=60

so a right angle is 90 degrees right so 90 + 60 =150 round it to the nearest hundredth and you have 200 that's how i got my answer :))

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Find the x-coordinates of the points where the graph crosses the x-axis:
ruslelena [56]

Answer:

29.  (5,0) and (-7/2,0)

30.  (-1,0) and (5/7,0)

Step-by-step explanation:

29. y=2x² - 3x - 35

      y = (x-5)(2x+7)

y is 0 at x = 5 and -(7/2)

31: y=-7x² - 2x + 5

    y =  -(x+1)(7x-5)

y is 0 at -1 and 5/7

See the attached graph.

3 0
2 years ago
If 4a - 3 = 9, what is the value of 4a + 1?!<br><br> A: 13<br> B: 3<br> C:49<br> D: 5
Oliga [24]

Answer:

a=3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Find the value of r in (4, r), (r, 2) so that the slope of the line containing them is −53
Elan Coil [88]

Answer:

C) 7

===========================================

Work Shown:

Use the slope formula

m = (y2-y1)/(x2-x1)

Plug in the given slope we want m = -5/3 and also the coordinates of the points. Then isolate r

m = (y2-y1)/(x2-x1)

-5/3 = (2-r)/(r-4)

-5(r-4) = 3(2-r) .... cross multiplying

-5r+20 = 6-3r

-5r+20+5r = 6-3r+5r .... adding 5 to both sides

20 = 6+2r

20-6 = 6+2r-6 ....subtracting 6 from both sides

14 = 2r

2r = 14

2r/2 = 14/2 .... dividing both sides by 2

r = 7

The slope of the line through (4,7) and (7,2) should be -5/3, let's check that

m = (y2-y1)/(x2-x1)

m = (2-7)/(7-4)

m = -5/3

The answer is confirmed

7 0
3 years ago
Read 2 more answers
The perimeter of a rectangle is 42 cm and the area is 80 cm². Write an equation to model the situation and find the dimensions o
mafiozo [28]

Answer:

16cm by 5cm

Step-by-step explanation:

P=2(l+w)  

A= wl

80 factorization: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.

you then would have to find 2 numbers that would add up to make 42.

When you try 16*2+5*2= 32+10= 42 cm as your perimeter.

16*5= 80 cm^2 as your area.

7 0
3 years ago
Three times a number is no less than negative six.
tresset_1 [31]

the equation for the stated problem would be:

3x ≥ -6

3 0
3 years ago
Read 2 more answers
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