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2 years ago

Need help with math problem if do get 5 star

Mathematics

2 answers:

Vinvika [58]2 years ago

6 0

Answer:

Area = 1/2 x b x h

= 1/2 x 8 x 4 = 16

D. 16 square units

Lemur [1.5K]2 years ago

5 0

Answer:

16 square units

Step-by-step explanation:

The area of a triangle is

A = 1/2 bh where b is the base and h is the height

The base is x which is 8 and the height is 4

A = 1/2 (8)*4

A = 1/2 (32) = 16 units^2

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How many vertices does a polyhedron have with 5 faces 3 rectangles and two triangles

steposvetlana [31]

Answer:

It has six vertices.

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3 years ago

Why is the formula for the area of a triangle one half the area for a rectangle

Naya [18.7K]

The area of a triangle is one half the area for a rectangle because the triangle is half of a rectangle with equal base and height

8 0

2 years ago

What is the first step to solve the following system of equations using substitution?

Akimi4 [234]

Answer:

Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x

Thus, option A) is true.

The solution to the system of equations be:

$x = 4, y = 5$

Step-by-step explanation:

It is important to remember that when we solve the system of equations, the first step we need to do is to solve one of the equations for one of the variables.

Given the system of equations

$x - y = -1$

$2x - y = 3$

Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x

$x-y=-1$

Add y to both sides

$x-y+y=-1+y$

$x=-1+y$

Thus, option A) is true.

<u>NOW LET US SOLVE THE REMAINING PORTION</u>

$\mathrm{Subsititute\:}x=-1+y$ to solve for y

$\begin{bmatrix}2\left(-1+y\right)-y=3\end{bmatrix}$

$-2+y=3$

$y=5$

For x = -1 + y

substitute y = 5

$x=-1+5$

$x=4$

Thus, the solution to the system of equations be:

$x = 4, y = 5$

3 0

2 years ago

A. 3.4

seropon [69]

A is your answer 3.4

Use Pythagorean Theroum

10.2 squared = 9.6 squared + x squared
104= 92.6+x squared
x squared = 11.4
x= 3.37
round x to 3.4

Hope that helps!

4 0

2 years ago

James has 12 dimes in hus pocket.How much money does he have

Marina86 [1]

Answer:

$1.20

Step-by-step explanation:

A dime is worth 10¢.

10¢ x 12 = 120¢

Since a dollar is 100¢, James would have a dollar and 20¢ left over. So, $1.20.

7 0

2 years ago

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