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tiny-mole [99]
2 years ago
5

PLEASE HELP ME WITH THIS QUESTION AND SHOW YOUR STEPS PLEASE HELP ME NOW PLEASE

Mathematics
1 answer:
Sindrei [870]2 years ago
3 0

Answer:

67.97

Step-by-step explanation:

let AC be length of ladder and BC be distance between ladder and wall and angle be theta

Now,

costheta=BC/AC

THETA =COS^-1(3÷8)

THETA=COS^-1(0.375)

THETA=67.97 DEGREE

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George has sold $75 worth of sandwiches at his concession stand today. Each sandwich sells for $5. He hopes to sell at least $60
boyakko [2]
5x + 75 > = 600 (thats greater then or equal)
3 0
3 years ago
Balance this equation:<br> HgO ---&gt; 2Hg + O2
lesantik [10]

Answer:

I think it's

2 HgO (s) → 2 Hg (l) + O2 (g)

Step-by-step explanation:

This is an oxidation-reduction (redox) reaction:

2 HgII + 4 e- → 2 Hg0

(reduction)

2 O-II - 4 e- → 2 O0

(oxidation)

7 0
3 years ago
The table shows the results of a survey given to 150 middle school students about their preference of extra-curricular activitie
Radda [10]

Answer:

D. More students preferred band or chorus than those that preferred football.

Step-by-step explanation:

I can easily tell D is the answer because 16+14=30. This means 30% liked band or chorus and 26% liked football.

<u>Remember the left side of the chart isn't talking about total number </u><u>of</u><u> students. They are talking about percent. </u>

5 0
3 years ago
Helpppppp pleaseeeee
Kaylis [27]

Answer:

x + y = 90 - - - (1)

y = 1/4x - - - - (2)

Step-by-step explanation:

x = larger acute angle

y = smaller acute angle

Recall:

A right angle measures 90°

Sum of angles in a triangle = 180°

y = 1/4x

Hence :

90 + x + y = 180

x + y = 180 - 90

x + y = 90 - - - (1)

y = 1/4x - - - - (2)

Put y = 1/4x in (1)

x + 1/4x = 90

1.25x = 90

x = 90 / 1.25

x = 72

x + y = 90

72 + y = 90

y = 90 - 72

y = 18

4 0
3 years ago
Please help!!!! will mark brainlest
fomenos

Answer: B. 84 in²

Step-by-step explanation:

Divide the area into two regions: a rectangle and a trapezoid (depicted in the attached photo).

Find the area of the rectangle:

Area of a rectangle=length*width

Area of rectangle=(5 in)( 10 in)

Area of rectangle=50 in²

Next, calculate the area of the trapezoid:

Area of trapezoid=\frac{h(b_{1} +b_{2}) }{2}

h=10 in-6 in

h=4 in

b_{1} =15 in

b_{2} =15 in-5 in

b_{2} =10 in

Area of trapezoid=\frac{4in(7 in+10in)}{2}

Area of trapezoid=\frac{4(17in^{2})  }{2}

Area of trapezoid=\frac{68in^{2} }{2}

Area of trapezoid=34in^{2}

Add the area of the trapezoid to the area of the rectangle to find the total area: 50 in²+34 in²=84 in²

3 0
3 years ago
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