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saul85 [17]
2 years ago
12

Evaluate the expressions below for the given values. a. -4d + 3 if d = -1 b. k - m if k = 4 and m = -10​

Mathematics
1 answer:
Gemiola [76]2 years ago
6 0

Answer:

7; 14

Step-by-step explanation:

A. -4d+3

-4*-1+3=4+3=7

B. k-m

4-(-10)=14

I think this is right :D I hope this helps ;)

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Determine the length of the leg of 45°- 45°- 90° triangle with a hypotenuse length of 38.
Mashutka [201]

Answer:Hello! Hopefully your question is.......

19√2

Step-by-step explanation:

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3 0
3 years ago
The Hickory Stick has a selection of 3 meats and 6 vegetables. How many different selections of one meat and one vegetable are p
valentina_108 [34]

The <u>different</u> selections of<u> one</u> meat and <u>one</u> vegetable are possible are 18 selections.

Since the Hickory Stick has a selection of 3 meats and 6 vegetables, the number of ways we can select <u>one </u>meat out of 3 is ³C₁ = 3.

Also, the number of ways we can select <u>one </u>vegetable out of 6 is ⁶C₁ = 6.

So, the total number of selections of <u>one</u> meat and <u>one</u> vegetable is ³C₁ × ⁶C₁ = 3 × 6

= 18 selections

So, the <u>different</u> selections of<u> one</u> meat and <u>one</u> vegetable are possible are 18 selections.

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brainly.com/question/19341024

7 0
2 years ago
Can anyone help please
Akimi4 [234]

Answer: X = 27

Step-by-step explanation: If we observe very closely, we have two similar triangles in the diagram. The first one is ABC and the other triangle is EDC. Also take note that angle ACB in the first triangle is equal in measurement to angle ECD (45 degrees) in the other triangle, (Opposite angles).

Hence in triangle ECD, we have identified two angles so far which are angle 2x + 10 and angle 45. Same applies to triangle ABC, we already have two angles which are, 3x - 10 and 45.

However angle D in the second triangle is equal in measurement to angle B in the first triangle

(Alternate angles).

Hence we have a third angle in triangle ABC which is

Angle B = 2x + 10.

Therefore 3x - 10 + (2x + 10) + 45 = 180

(Sum of angles in a triangle)

3x - 10 + 2x + 10 + 45 = 180

By collecting like terms we now have

3x + 2x = 180 + 10 - 10 - 45

5x = 135

Divide both sides by 5,

x = 27

8 0
2 years ago
Find all solutions to the equation. <br><br> cos^2x + 2 cos x + 1 = 0
mixas84 [53]
\cos^2(x)+2\cos(x)+1=0\\\\ (\cos(x)+1)^2=0\\\\ \text{So:}\\\\ \cos(x)+1=0\\\\ \cos(x)=-1\\\\ \boxed{x=\pi+2k\pi},~k\in\mathbb{Z}
5 0
3 years ago
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Plz help me ASAP! Answer the question in the picture below. Explain all of your steps.
ruslelena [56]

Answer:

175 hope this helps


Step-by-step explanation:

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8 0
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