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lions [1.4K]
3 years ago
10

Which of these equations represents a line

Mathematics
1 answer:
Sedbober [7]3 years ago
5 0
What type of answers are those?
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12 grapes cost 90 $how many can bought in 40$
likoan [24]

Let x = the amount of grapes that can be bought for 0.40.


Note: By 90 I assume you mean 90 cents. The same for 40.


12/x = 0.90/0.40


0.90x = 12(0.40)


0.90x = 4.80


x = 4.80 ÷ 0.90


x = 5.33333


We can round the decimal to the ones place to get 5 grapes.




4 0
3 years ago
Read 2 more answers
I need answer for this math problem​
tekilochka [14]

Answer:

3h²

Step-by-step explanation:

factor or breakdown 3h² : 3 * h * h

factor or breakdown 3h³ : 3 * h * h * h

Now, we can see that 3 * h * h is common so 3h² is the gcf.

6 0
2 years ago
Read 2 more answers
Factor 5z2 + 19z - 4.
Alexxandr [17]

Answer:

\huge\boxed{5z^2+19z-4=(z+4)(5z-1)}

Step-by-step explanation:

5z^2+19z-4=5z^2+20z-z-4\\\\\qquad\text{use the distributive property}:a(b+c)=ab+ac\\\\=5z(z+4)-1(z+4)\\\\\qquad\text{use the distributive property}:a(b+c)=ab+ac\\\\=5z\underbrace{(z+4)}_{a}-1\underbrace{(z+4)}_{a}=(z+4)(5z-1)

7 0
3 years ago
A triangle has an area of 72 square inches. If the base of the triangle has a length of 18 inches, what is the height of the tri
nikdorinn [45]

Answer:

height is 4 in

Step-by-step explanation:

total area 72

divide area by base length

72/18= 4

72 total area

18 base length

4 height

6 0
3 years ago
An eight character password uses four digits 1-6 and four letters A-Z with repeats allowed. How many possible passwords like thi
Ratling [72]
4 x 8 x 6 x 4 x 26 = 19,968

i think however, i could be wrong. my teacher told me to use the fundamental counting principle. you multiply each different part of the problem.
3 0
4 years ago
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