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3 years ago

Which of the following expressions have a value of 180 when b = 4?

Mathematics

1 answer:

Tasya [4]3 years ago

5 0

Answer: The answer is A and D

Step-by-step explanation: If you go through all the problems, just replace "b" with "(4)" into a calculator. For A and D, they both equaled 180.

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Which of the following is the area of a quadrilateral with vertices at (-4,2),(1,2),(1,-3) and (-4,-3)

kow [346]

Answer:

The correct option is B.

Step-by-step explanation:

The given vertices are (-4,2),(1,2),(1,-3) and (-4,-3).

Plot these point on a coordinate plate. From the graph it is noticed that the given quadrilateral is a square.

Distance formula:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Use distance formula to find the side length.

$AB=\sqrt{(1-(-4))^2+(2-2)^2}=\sqrt{5^2}=5$

$BC=\sqrt{(1-1)^2+(-3-2)^2}=\sqrt{(25}=5$

Since both consecutive sides are equal therefore it is a square.

Area of a square is

$A=a^2$

Where, a is side length.

The side length of the square is 5. So, area of ABCD is

$A=(5)^2$

$A=25$

Therefore the area of quadrilateral is 25 units square. Option B is correct.

3 0

3 years ago

Translate the sentence into an equation.<br> The sum of 5<br> times a number and 9<br> is 6<br> .

Kaylis [27]

The answer is:

5n + 9 = 6

3 0

3 years ago

Round $.9666 to the nearest cent

Burka [1]

Answer:

It would be $0.97

Step-by-step explanation:

You round the nearest cent so you round the second number from the dot

6 0

3 years ago

Units are squared when dealing with area but not when dealing with perimeter

Mashcka [7]

The answer is true I believe

7 0

4 years ago

**WILL GIVE THE BRAINLIEST! & LIKE**

Tamiku [17]

1) combine like terms (k)
0 = 7k
k = 0/7 = 0
zero divided by any numbers will be zero

2) combine the like terms (the constant of -4 + 1)
9 = 6x - 3
add 3 to both sides
12 = 6x
x=2

3) -3+3=0
-4=v

4) 4+3=7
8=k+7
k=1

5)x-5x = -4x
16= -4x
x = -4

8 0

3 years ago