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Natasha_Volkova [10]
3 years ago
10

Area of a Triangle, Plss,Not I Dor cine Friday,and one friend get me this paper,Help!!!

Mathematics
2 answers:
mamaluj [8]3 years ago
6 0
1a- 20
1b - 28
2a-5
2b-168

To work out the area of a triangle it is (base multiplied by height) divided by two.
TiliK225 [7]3 years ago
4 0

1a)  20cm^2

1b) 27cm^2

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At a quick-lunch counter, 3 pretzels and 1 soda cost
NeX [460]

Answer:

I really did try man ;-;

Step-by-step explanation:

8 0
3 years ago
Make g the subject p=5gh
balandron [24]
When rearranging or transposing an equation, you always have to try and get the letter you want on its own by doing the opposite of each step on both sides. In this case it is g:

p= 5gh

Because g is being multiplied by 5 and h, you'd want to divide by 5 and h to get g on its own: (division is represented by the slashes / ).

p= 5gh/5h

Now you can cross off 5h completely from the right side of the equation because they cancel out.

p/5h = g

Because you did that, you have to do it on the other side too so that is why it is P/5h on the left.

So g = p divided by 5h.

Hope that helped!!!
7 0
3 years ago
Write an equivalent expressions to 2x + 3 + 5x +6 by combining like terms Your standard form +
Stolb23 [73]

Answer:

7x+9

Step-by-step explanation:

combine like terms

plz brainliest!

8 0
3 years ago
find the average rate of change from t=2 to t=5 for the velocity function v(t)=t^2-t+10. WILL GIVE THE BRAINLIEST ANSWER--EXPLAI
Elina [12.6K]
Answer: The average rate of change is 6.
First, plug in each value of <em>t</em> into the function, v(t) to find there coordinate pairs.

v(2) = (2)^2 - (2) + 10
v(2) = 4 + 8
v(2) = 12

v(5) = (5)^2 - (5) + 10
v(5) = 25 + 5
v(5) = 30

You can write these values as coordinate pairs, like so: (2, 12) and (5, 30).
The formula for the average rate of change is A(x) =  \frac{f(x)-(f(a)}{x-a}. When you plug in the values from this particular case, the average rate of change formula becomes A(t) = \frac{30-12}{5-2}, or A(t)= \frac{18}{3}.

Looking at the equation, you can solve for the average rate of change between t = 2 and t = 5, which equals 6.
8 0
3 years ago
In how many ways can a quality-control engineer select a sample of3 transistors for testing frm a batch of 100 transistors?
Advocard [28]

Answer:

161700 ways.

Step-by-step explanation:

The order in which the transistors are chosen is not important. This means that we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

3 transistors from a set of 100. So

C_{100,3} = \frac{100!}{3!(100-3)!} = 161700

So 161700 ways.

6 0
3 years ago
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