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vivado [14]
3 years ago
5

Evaluate the expression 4b-6d if b=7 and d=3

Mathematics
2 answers:
stepladder [879]3 years ago
5 0

The answer is 10 you plug 7 in for b and 3 in for d and multiply both side together and the subtract

Delicious77 [7]3 years ago
4 0

Answer:

Step-by-step explanation:

4b - 6d = 4*7 - 6*3

            = 28 - 18

            = 10

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Consider the quadratic function:
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Answer:

Step-by-step explanation:

I'm not sure how you are finding this in class, but the easiest way by far is to use the expressions for h and k:

h=\frac{-b}{2a}  and

k=c-\frac{b^2}{4a}

(Just a fun fact:  Those expressions come from the quadratic formula that help us to factor a quadratic equation.)

Filling in for h:

h=\frac{-(-8)}{2(1)}  simplifies to

h = \frac{8}{2}=4

Filling in for k:

k=-9-\frac{(-8)^2}{4(1)}  which simplifies a bit to

k=-9-\frac{64}{4}  which simplifies a bit more to

k=-9-16=-25

The vertex, then, is (4, -25).

You would also find this if you completed the square.  But again, I'm not sure how you're solving for the vertex in class.

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2 years ago
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2 years ago
Mr. Wonderful ran one lap around the park. He made 10 turns to the left and no turns to the right. What was the average number o
anygoal [31]

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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
What is 2/3 divided by 3/4
ad-work [718]

Answer:

8/9

Step-by-step explanation:

It can sometimes be difficult to divide fractions, such as 2/3 divided by 3/4! When we divide two fractions, such as 2/3 ÷ 3/4, we flip the second fraction and then we simply multiply the numerators with each other and the denominator with each other. We also simplify the answers to fraction problems whenever possible.

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What will help is labeling the diagram with the given info..A proof always ends with the statement you have to prove.

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1) ∠F≅∠C             1) Given

2) E is the midpoint of GD     2) Given

3) GE≅ED       3) If a point is a midpoint then 2 ≅ segments are formed

4) FE≅EC        4)   Same as 3

5)∠G≅∠D     5)  

6) FG≅CD       6)

I tried my best with step 5 and 6..but you know step 6 has to be the prove statement but i don't know what the reason would be. I hope i helped a bit though.

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