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BartSMP [9]
3 years ago
13

Help me please I don’t know how to do this

Mathematics
1 answer:
Evgesh-ka [11]3 years ago
8 0

Answer:

Step-by-step explanation:

I guess it’s option D.

Cuz we have to find angle K and 140 minus 60 makes 80 so that’s the answer.

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What is the difference of the fractions? Use the number line to help find the answer.
rjkz [21]

hope that this answers your problem !

To solve this question, we first need to layout the equation

-2 1/2 -(-1 3/4)

Step 1

-2 1/2-(-1 3/4) ... Equation

Step 2

5/2-(-1 3/4) ... Converted to improper fraction

Step 3

5/2-(-7/4) ... converted to improper fraction

Step 4

5/2--7/4 ... Got rid of parenthesis

Step 5

-3/4 ... Subtract

Answer:

-3/4 ... Answer

So the answer for this problem is C, -3/4

4 0
3 years ago
1. Factor and simplify: cos² xcsc² x-cos²xcot² x
Vera_Pavlovna [14]

Answer:

Cos² x

Step-by-step explanation:

<h3>Trigonometry:</h3>

    \sf Cos^2 \ x *Csc^2 \ x-Cos^2 \ x *Cot^2 \ x = Cos^2 \ x (Csc^2 \ x - Cot^2 \ x)

                                                        \sf = Cos^2 \ x \left(\dfrac{1}{Sin^2 \ x} - \dfrac{Cos^2 \ x}{Sin^2 \ x}\right)\\\\= Cos^2 \ x \left(\dfrac{1-Cos^2 \ x}{Sin^2 \ x}\right)\\\\\boxed{\bf Indentity: \ 1 - Cos^2 \ x = Sin^2 \ x}\\\\\\= Cos^2 \ x \left(\dfrac{Sin^2 \ x}{Sin^2 \ x}\right)\\\\= Cos^2 \ x

4 0
2 years ago
Suzie went to a candy shop. The candy shop has a sign that shows the cost of the candies at the shop. The sign is below:
aleksklad [387]

Answer:

$8.50

Step-by-step explanation:

Multiply the cost by the amount of candy she bought, your equation will look like this:

2(0.75) + 3(1) + 5(1.40)

Multiplying everything makes the equation into:

1.5 + 3 + 7

Adding everything makes the total cost 11.50.

Subtract 11.50 from 20, and the answer is 8.50

6 0
3 years ago
Does a triangle with these side lengths exist?<br> 15, 12,9
suter [353]

5,700 resultsAny time  

Calculation of the SSS triangle 9 12 15 - Triangle calculator

https://www.triangle-calculator.com/?a=9&b=12&c=15

Now we know the lengths of all three sides of the triangle and the triangle is uniquely determined. Next we calculate another its characteristics - same procedure as calculation of the triangle from the known

3 0
3 years ago
Read 2 more answers
6) Salem Sue is a giant cow statue in North Dakota. The cow is 38 feet high. A real
exis [7]

The size of chicken at the form would be 111.8 inches.

Step-by-step explanation:

Given that,

The average height of cow = x1 = 4 feet 5 inches

x1 = 4 x 12 + 5 = 53 inches   (12 inches in a feet)

The average height of chicken = y1 = 13 inches.

The height of cow statue at form = x2 = 38 feet

x2 = 38 x 12 = 456 inches

The height of chicken statue = y2 = ?

For this, the ratio of height in both the scenarios would be the same. Therefore,  

x1/y1 = x2/y2

now, by putting the values

53/13 = 456/y2

y2 = (456x 13) / 53

y2 = 111.8 inches

Hence, the size of chicken at the form would be 111.8 inches.

6 0
4 years ago
Read 2 more answers
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