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4 years ago

What is the value of the expression 4 - (-7)

Mathematics

2 answers:

mina [271]4 years ago

8 0

Answer:

-3

Step-by-step explanation:

lana [24]4 years ago

4 0

Answer:

Step-by-step explanation:

4 + 7 = 11

..................

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There are 3 kites Each kite measures 6 inches across and 12 inches long. The wall is 12 feet across. How many square inches of t

marissa [1.9K]

18sq ft

Step by step explanation:

6x3=18

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3 years ago

Which algebraic expression represents this phrase?

3241004551 [841]

Answer:

Step-by-step explanation:

the question is asking for the product which has to do with multiplication or addition. Although in this case it seems that multiplication best fits.

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3 years ago

How many seconds are in 6 hours? and in 2 days? Explain please?

BartSMP [9]

There are 3600 seconds in an hour.

3600x6 = seconds in 6 hours.
= 21,600 seconds.

48 hours in a 2 days. 3600 seconds each hour.

48x3600= 172,800 seconds.

8 0

4 years ago

The angle measures associated with which set of ordered pairs share the same reference angle? (Negative StartFraction StartRoot

Katarina [22]

Answer:

$(C)\left(-\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)$ and \left(\dfrac{1 }{2},\dfrac{\sqrt{3} }{2} \right)$

Step-by-step explanation:

The reference angle is the angle that the given angle makes with the x-axis.

For an ordered pair to share the same reference angle, the x and y coordinates must be the same or a factor of each other.

From the given options:

$(A)\left(-\dfrac{\sqrt{3} }{2} ,-\dfrac{1 }{2}\right)$ and \left(-\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)\\\\(B)\left(\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)$ and \left(-\dfrac{\sqrt{3} }{2}, \dfrac{1 }{2}\right)\\\\(C)\left(-\dfrac{1 }{2},-\dfrac{\sqrt{3} }{2} \right)$ and \left(\dfrac{1 }{2},\dfrac{\sqrt{3} }{2} \right)\\\\(D)\left(\dfrac{\sqrt{3} }{2},\dfrac{1 }{2} \right)$ and \left(\dfrac{1 }{2},\dfrac{\sqrt{3} }{2} \right)$

We observe that only the pair in option C has the same x and y coordinate with the second set of points being a negative factor of the first term. Therefore, they have the same reference angle.

5 0

3 years ago

Read 2 more answers

Question 13 Multiple Choice Worth 4 points)

Sveta_85 [38]

Answer:

Use a compass to create the distance between midpoints

Step-by-step explanation:

I took the test and got it right

7 0

3 years ago