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4 years ago

Is (-1,4) a solution of the inequality y<2x+5

Mathematics

1 answer:

LenKa [72]4 years ago

8 0

Answer:

No, (-1,4) is not a solution.

Step-by-step explanation:

This is actually a simple problem...don't overcomplicate it!

All you need to do is plug the values into the equation and solve!

y < 2x + 5

4 < 2(-1) + 5

4 < 3

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At the beginning of spring, Anthony planted a small sunflower in his backyard. When it was first planted, the sunflower was 20 i

Leni [432]

Answer: The sunflower be 50 inches tall after 6 weeks.

Total height of sunflower in w weeks = 20+1.5 w,

Step-by-step explanation:

Given: In the beginning, the sunflower was 20 inches tall.

The sunflower then began to grow at a rate of 1.5 inches per week.

Then, total height of sunflower in 6 weeks = 20+1.5 ×20, where 1.5 ×20= growth in 6 weeks

= 20+30

= 50 inches

So, the sunflower be 50 inches tall after 6 weeks.

Let w = number of weeks, then

Total height of sunflower in w weeks = 20+1.5 w, where 1.5 w= growth in w weeks.

4 0

4 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7By%7D%20%287%5Csqrt%5B3%5D%7B8y%5E2%7D-%5Csqrt%5B3%5D%7By%5E5%7D%20-4y%5Csqrt%

noname [10]

Answer:

$\huge\boxed{-y^2+2y}$

Step-by-step explanation:

$\sqrt[3]y\cdot\left(7\sqrt[3]{8y^2}-\sqrt[3]{y^5}-4y\sqrt[3]{27y^2}\right)\\\\=(\sqrt[3]y)(7\sqrt[3]{8y^2})-(\sqrt[3]y)(\sqrt[3]{y^5})-(\sqrt[3]y)(4y\sqrt[3]{27y^2})\\\\=7\sqrt[3]{(y)(8y^2)}}-\sqrt[3]{(y)(y^5)}-4y\sqrt[3]{(y)(27y^2)}\\\\=7\sqrt{8y^3}-\sqrt{y^6}-4\sqrt{27y^3}\\\\=7\sqrt[3]{2^3y^3}-\sqrt{y^{2\cdot3}}-4\sqrt{3^3y^3}\\\\=7\sqrt[3]{(2y)^3}-\sqrt{(y^2)^3}-4\sqrt{(3y)^3}\\\\=7\cdot2y-y^2-4\cdot3y\\\\=14y-y^2-12y\\\\=-y^2+2y$

Used:

$a(a+b)=ab+ac\\\\\sqrt[3]{a\cdot b}=\sqrt[3]a\cdot\sqrt[3]b\\\\\sqrt[3]{a^3}=a\\\\(a^n)^m=a^{n\cdot m}$

7 0

2 years ago

kaya has $25 left over after the football game she spent $17 for her ticket. She then bought a hat for $11 how much money did ka

shepuryov [24]

Kaya brought $53 to the football game

7 0

3 years ago

Please help me with this -2 - (-0.7)

Amanda [17]

Anytime you subtract a negative number, it changes it to adding a positive number.

-2 + 0.7

Since we are adding, we will have an arrow going to the right

-2 + 0.7 = -1.3

Therefore, we will have a point starting at -2, an arrow pointing to the right and stopping at -1.3

Best of Luck!

8 0

4 years ago

Solve the equation a minus 2 and one-half = 1 and one-half

viva [34]

A would equal 4 because you would first convert the mixed numbers into improper fractions, then move the constant to the right, and finally add the factions

a-2(1/2)=1(1/2)
a-(5/2)=(3/2)
a=(3/2)+(5/2)
a=4

7 0

3 years ago