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3 years ago

A triangle has a base of 10 cm its other sides are both 13cm long calculate the area

Mathematics

2 answers:

earnstyle [38]3 years ago

7 0

Answer:

60 cm^2

Step-by-step explanation:

defon3 years ago

7 0

Answer: 60cm^2

Explanation:

Since both sides are 13cm it tells us that it is an isosceles triangle.

And we can find the height by using Pythagorean’s theorem.

If we cut the isosceles triangle into 2 same right triangles, we can take one of the right triangle and we can work out the height.

I added a picture, please check it out.

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A large company made $6,439,583 last year. What is the value of the 9 in $6,439,583?

White raven [17]

The value of 9 is 9,000 (nine thousand)

5 0

3 years ago

Read 2 more answers

Determine the intercepts of the line that passes through the following points. (-5,-7) (0,-5) (5,-3)

MAVERICK [17]

To find the y intercept you use this equation:

y2 - y1

Same for x intercept:

x2 - x1

Pick two points, put in the values, and solve.

(-5,-7) and (0,-5)

-5 - (-7) = 2
0 - (-5) = 5

The y intercept is (0,2)
The x intercept is (5,0)

Hope this helps! :)
-Peredhel

4 0

3 years ago

Maria is buying new carpet. Her bedroom is in the shape of a square and the length id each side is 12 feet. Write and simplify a

satela [25.4K]

Answer: She needed 144 square feet of carpet.

Step-by-step explanation:

Given : Maria is buying new carpet. Her bedroom is in the shape of a square.

The length of each side is 12 feet.

We know that the area of square = $(side)^2$

So , the area of the bedroom = $(12)^2$ [which is an exponential expression]

Simplify it

The area of the bedroom = $12\times12=144\ \text{ft}^2$

Also, the carpet she needed = Area of the bedroom.

Thus , She needed 144 square feet of carpet.

4 0

3 years ago

I need answers to this

ololo11 [35]

Answer:

x = -5, and y = -6

Step-by-step explanation:

Suppose that we have two equations:

A = B

and

C = D

combining the equations means that we will do:

First we multiply both whole equations by constants:

k*(A = B) ---> k*A = k*B

j*(C = D) ----> j*C = j*D

And then we "add" them:

k*A + j*C = k*B + j*D

Now we have the equations:

-x - y = 11

4*x - 5*y = 10

We want to add them in a given form that one of the variables cancels, so we can solve it for the other variable.

Then we can take the first equation:

-x - y = 11

and multiply both sides by 4.

4*(-x - y = 11)

Then we get:

4*(-x - y) = 4*11

-4*x - 4*y = 44

Now we have the two equations:

-4*x - 4*y = 44

4*x - 5*y = 10

(here we can think that we multiplied the second equation by 1, then we have k = 4, and j = 1)

If we add them, we get:

(-4*x - 4*y) + (4*x - 5*y) = 10 + 44

-4*x - 4*y + 4*x - 5*y = 54

-9*y = 54

So we combined the equations and now ended with an equation that is really easy to solve for y.

y = 54/-9 = -6

Now that we know the value of y, we can simply replace it in one of the two equations to get the value of x.

-x - y = 11

-x - (-6) = 11

-x + 6 = 11

-x = 11 -6 = 5

-x = 5

x = -5

Then:

x = -5, and y = -6

5 0

2 years ago

1. Which expression is equal to 815-97?

lara [203]

Answer:

the answer is C.815+(-97)

Step-by-step explanation:

5 0

2 years ago