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lesya692 [45]
3 years ago
15

Describe 58 as a sum of tens and ones

Mathematics
1 answer:
Solnce55 [7]3 years ago
4 0
58 is 5 tens (5*10) and 8 ones (8*1)
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Amy earned $25 after babysitting for 3 hours.if she always charges the same rate ,how much will she make after working for 7 hou
bagirrra123 [75]
$58.33 twenty five divided by three times seven
4 0
3 years ago
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Solve:<br> sin5x - cos2x + sin x = 0.
mote1985 [20]

Answer:

x = 10 , 45 degrees.

Step-by-step explanation:

This seems a tricky one .

I guess we can use   sin A + sin B =  2 sin (A+B)/2 cos (A - B) / 2

so sin 5x + sin x = 2 sin 3x cos 2x so our equation becomes

2 sin 3x cos 2x - cos 2x = 0

cos 2x ( 2 sin 3x - 1) = 0

so 2 sin 3x = 1

sin 3x = 1/2

giving 3x = 30 degrees and x = 10 degrees

or cos 2x = 0

so 2x = 90

giving x = 45 degrees.

8 0
3 years ago
Which angle number represents an angle vertical to∠CHF?
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It should be angle DEH
6 0
2 years ago
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the perimeter of a rectangle is 50 inches the length l is twice the width w. what is the area of the rectangle?? ❗️show work❗️
mr Goodwill [35]
Hey. Let me help you on this one.

In order for us to solve this problem, we will need to set up an equation which we can solve later. I will also be attaching an image with the work shown in case you don't understand my explanation. Make sure to read over it since it will help you with your studies.

We know that the length is twice the width, meaning that a=2b, with "a" standing for length, and "b" standing for width. Now that we have formed an equation for length, we can actually form an equation for perimeter.

P=2(2b)+2b

Let's simplify the equation so it's easier and less confusing for us to solve it.

50=6b

Let's divide 6 from both sides, thus eliminating all variables except for b on the right side.

8.3=b

"3" in 8.3 is repeating. This is very important to remember. Now, we know the width of the triangle. Let's find the length of the triangle so we can then multiply both numbers together and find the area.

a=8.3*2
a=16.6

"6" in 16.6 is repeating as well. It's crucial to remember as well. We know the values now, meaning that we can find the area of the rectangle.

S=16.6*8.3
S=138.8

Answer: Area of the rectangle is 138.8 (with 8 repeating). 



4 0
3 years ago
Domain and range please? Graph
Kamila [148]
The domain is {-1.5, -1.2, -0.8, -0.5, 0, 1, 2} And the range is {0, -3}
3 0
2 years ago
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