MATHEMATICS MIDDLE SCHOOL

The base of a triangle is 21 inches and the height is 12 inches which of these expressions correctly shows how to calculate the area of a triangle a (21 x 12) divided by 2
b ( 21 + 12) x 2
c (21 + 12) divided by 2
d ( 21 x 12) x 2

Answers

Answer 1
Answer:

½ x 21 x 12=126

So the answer is a
Answer 2
Answer:

Answer:

A.  (21 × 12) ÷ 2

Step-by-step explanation:

Use the area formula to find the area of the triangle. A = (b × h) ÷ 2

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Write the expression the product of -13 and K

Answers

Answer:

-13K

Step-by-step explanation:

you want to put $8,000 in a simple interest account it has a 2% annual interest rate how long must you invest that money to earn $400 in interest

Answers

I=PRT
I=interst
P=present amount
R=interest rate
T=time in years

we know that
P=8000
R=2%=0.02

we also know that we want 400 in interst or I=400
we need to knw T

so
400=8000(0.02)(T)
400=160(t)
divide both sides by 160
2.5=T
2.5 years

Answer:

2.5 years

Step-by-step explanation:

Because I got it right and I forgot to take a picture.

What is 1.6 * 0.9? estimate and correct answer

Answers

1.6 is close to 1.5
0.9 is close to 1
So, multiple 1.5 and 1
1.5 * 1 = 1.5
1.5 is the estimated answer.

Correct answer 
1.6 * 0.9 = 1.44
The awnser to 1.6 is 2 because 6 is greater than 5,and the awnser to 0.9 is 1 because 9 is greater than 5,but don't get me wrong if it was 5 it will still round up it just cant be less than 5,because if less than 5 it stays the same.

Please help me undertsand this question.

Answers

So basically, you want to show why the two lines (m and n ) are the "same". To show this you would say <4 &<5 are also supplementary because it is the same as <3 & <6. I think this is what the question is asking. To prove this you use the Converse Theorem. Which is what I just showed you with the angles.

Easton won Best in Show in 60% of the shows he entered. In how many shows was Easton entered if he won Best in Show 15 times last year?

Answers

25 shows total. Hope this helps.

Answer:

25.....

Step-by-step explanation:

Find the midpoint of A and B where A has coordinates (2,7)
and B has coordinates (6,3).

Answers

The midpoint of A and B where A has coordinates (2,7) and B has coordinates (6,3) is (4, 5)

If B(x, y) is the midpoint of the line segment AC with end points at A(x₁, y₁) and C(x₂, y₂), the coordinates of B is:

x = (x₁ + x₂)/2; y = (y₁ + y₂)/2

Let O(x, y) be the midpoint of A and B where A has coordinates (2,7) and B has coordinates (6,3). Hence:

x = (2 + 6)/2 = 4; y = (7 + 3)/2 = 5

Hence the midpoint of A and B is (4, 5)

Find out more at: brainly.com/question/2441957

Given that the coordinates of the point A is (2,7) and the coordinates of the point B is (6,3)

We need to determine the midpoint of A and B

Midpoint of A and B:

The midpoint of A and B can be determined using the formula,

Midpoint =((x_1+x_2)/(2), (y_1+y_2)/(2))

Substituting the points (2,7) and (6,3) in the above formula, we get;

Midpoint =((2+6)/(2), (7+3)/(2))

Adding the numerator, we have;

Midpoint =((8)/(2), (10)/(2))

Dividing the terms, we get;

Midpoint =(4, 5)

Thus, the midpoint of the points A and B is (4,5)
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