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Alex
3 years ago
14

10. Sketch the graph of -5x^2- 16xy +7y^2-198 0. Show the steps used in rotating the axes

Mathematics
1 answer:
stiv31 [10]3 years ago
5 0
So sorry i don’t know the answer but get an app called desmond, it helps a lot
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Ms. Monet is combining 15 cups pf green paint with 15 cups of white paint. She is pouring the paint mixture into empty quart bot
Galina-37 [17]

Answer: she needs 8 quart bottles.

Step-by-step explanation:

Ms. Monet is combining 15 cups of green paint with 15 cups of white paint. This means that the total number of cups containing the mixture of green and white paint us

15 + 15 = 30

1 Us liquid quart = 4 Us cups

x Us liquid quart = 30 Us cups

Cross multiplying,

4x = 30

x = 30/4 = 7.5 quarts of paint

Since she is pouring the paint mixture into empty quart bottles, the number of quart bottles that she needs is approximately 8

4 0
3 years ago
Use substitution to determine if the solution is correct (PINK HIGHLIGHTED ONE!!!)
mart [117]

Answer:

It is not correct.

Step-by-step explanation:

If you plug 4 in for x, you get -2*4+5=13. This simplifies to: -8+5=13. This is an untrue statement since -8+5 is actually -3, not 13.

Hope this is helpful! :)

4 0
3 years ago
Read 2 more answers
Evaluate the. Expression x+ 9, if x= 8. 1, 2, 17, 89
Solnce55 [7]

Answer:

17

Step-by-step explanation:

We are given the expression find x + 9 if x = 8.

When a certain number has a variable and the value of the variable is known, all you have to do is plug in the variable amount into the equation, therefore :

x is 8 , so we plug in 8 for x

x + 9 =

8 + 9 = 17

3 0
3 years ago
Read 2 more answers
Choose the best answer:
Oksi-84 [34.3K]

Answer:

The length of the hypotenuse is 2 square root of 13 ⇒ c

Step-by-step explanation:

The rule of the area of the right triangle is A = \frac{1}{2} × leg1 × leg2, where

leg1 and leg2 are the sides of the right angle

∵ The area of a right triangle is 12 in²

∵ The ratio of the length of its legs is 2: 3

→ Let leg1 = 2x and leg2 = 3x

∵ leg1 = 2x and leg2 = 3x

→ Substitute them in the rule of the area above

∴ 12 = \frac{1}{2} × 2x × 3x

∵ 2x × 3x = 6x²

∴ 12 =  \frac{1}{2} × 6x²

∴ 12 = 3x²

→ Divide both sides by 3 to find x²

∴ 4 = x²

→ Take √ for both sides

∴ x = 2

→ Substitute x in the expressions of leg1 and leg2 to find them

∴ leg1 = 2(2) = 4 inches

∴ leg2 = 3(2) = 6 inches

∵ hypotenuse = \sqrt{(leg1)^{2}+(leg2)^{2}}

∴ hypotenuse = \sqrt{(4)^{2}+(6)^{2}}=\sqrt{16+36}=\sqrt{52}

∵ The simplest form of \sqrt{52} = 2\sqrt{13}

∴ The length of the hypotenuse = 2\sqrt{13} inches

3 0
3 years ago
What is the type of sweet wine made in tuscany using dried grapes and extensive aging?
Sveta_85 [38]
<span>Well were your question is coming from this is what i can tell you~Tuscan wine most often involves the Sangiovese grape, and  For scope, 80% of all wines produced in Tuscany are produced with red grapes, Brunello di Montalcino is associated with extensive aging potential, It's a Super Tuscan that falls right in the middle of being not too dry or too sweet,</span>
3 0
3 years ago
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