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dmitriy555 [2]
3 years ago
13

The expression \dfrac12bh 21​ bhstart fraction, 1, divided by, 2, end fraction, b, h gives the area of a triangle where bbb is t

he base of the triangle and hhh is the height of the triangle.What is the area of a triangle with a base of 7 \text{ cm}7 cm7, space, c, m and a height of 4 \text{ cm}4 cm4, space, c, m? \text{ cm}^2 cm 2
Mathematics
2 answers:
drek231 [11]3 years ago
6 0
For this case, the first thing we must do is use the given expression.
 We have then:
 A = (1/2) * (b) * (h)
 Substituting the values:
 A = (1/2) * (7) * (4)
 A = 14cm ^ 2
 Answer:
 the area of a triangle with a base of 7 cm and a height of 4 cm is:
 A = 14cm ^ 2
lara31 [8.8K]3 years ago
3 0

Answer:

14

Step-by-step explanation:

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(5x – 3y + 8) + (-3x + 6y - 3)​
Wewaii [24]

Answer:

2x+3y+5

Step-by-step explanation:

Firstly, we remove the parenthesis since there is nothing in front of it.

There is a “+” sign in front of the parenthesis, it stays the same.

Secondly, we combine like terms. We combine the x’s, the y’s, and the normal numbers without a variable.

Finally, after combining the like terms. You end up with “2x+3y+5”.

8 0
3 years ago
ASAP help I don’t know the answer
Nady [450]

Answer:

6

Step-by-step explanation:

It appears you have vertical angles. The rule with angles is that no matter what, vertical angles are always congruent (or the same). This means you would have to set up the equation to solve for "b" as:

70 - 2b = 28 + 5b

You could solve this manually, but Desmos graphing calculator is faster. Simply type this in and replace b with x and it will give you the answer, which is 6. Hope this helps!

4 0
3 years ago
Read 2 more answers
4x - 2y = 5<br> y= 2x + 10
Helga [31]

Answer:

There is no solution

Step-by-step explanation:

4x - 2y = 5 --> 4x - 2(2x + 10) = 5

4x - 4x  - 20 = 5

4x - 4x -25 = 0

Final answer is -25 = 0 and so therefor it is no solution

7 0
3 years ago
Here is a picture of a Ferris wheel. It has a diameter of 80 meters.
jenyasd209 [6]

Answer:

251.2 m

Step-by-step explanation:

Circumference = 2 x π x r

C = 2 x 3.14 x 40

C = 251.2

6 0
3 years ago
a store had three baskets with an equal number of flower bouquets in each. customers purchased 8 bouquets from each basket, and
Nostrana [21]

Answer:

8

Step-by-step explanation:

18+8=26

26 / 3 = 8

8

hope this helped!

~ angilina

5 0
3 years ago
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