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Tju [1.3M]
3 years ago
11

PLEASE HELP, I REALLY NEED IT 25 POINTS AND GIVE BRAINLIEST TO BEST ANSWER

Mathematics
1 answer:
kozerog [31]3 years ago
5 0

Answer: i.m on school com so i can,t see the pictures

Step-by-step explanation:

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If 10 pounds of sugar cost $18.54, how much will 15 pounds of sugar cost?
Elina [12.6K]
15 pounds of Sugar will cost $27.81.
18.54/2=9.27. 9.27*3=27.81. So your total answer would be $27.81.

3 0
4 years ago
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What is -7 times blank equal 14
Vedmedyk [2.9K]
I believe it is 7x2=14
8 0
3 years ago
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If a ball is dropped from a height of 18 feet, the function f(x) = 18(0.75)* gives the height
NeTakaya

Answer:

<h2>At the 7th bounce, the ball reached 2.3 feet height.</h2>

Step-by-step explanation:

The given expression is

f(x)=18(0.75)^{x}

This exponential function represents the movement of a bouncing ball after being dropped.

x represents the bounce number.

So, at 7th bounce means x=7, replacing this value in the function, we have

f(7)=18(0.75)^{7}=18(0.13) \approx 2.34

Therefore, at the 7th bounce, the ball reached 2.3 feet height.

8 0
4 years ago
∆ABC is an isosceles triangle in which angles B and C are congruent.
Brut [27]
Since B and C are congruent, that means that 4x+10=x+34. Using the addition property of equality, I challenge you to solve for x! After you do that, you can note that all the angles in a triangle add up to 180, so 4x+10+x+34+angleA=180. When you find x, you can substitute that in.

If you need help with the addition property of equality for variables, here's an example - 5x+23=4x+3. Subtracting 3 from both sides, we get 5x+20=4x. Next, we can subtract 5x from both sides to get -x=20 and divide both sides by -1 to get x=-20.

Good luck, and feel free to ask with any questions!
4 0
3 years ago
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Write a matrix equation for the given systems of equations.
REY [17]

Answer:

<em></em>\left[\begin{array}{ccc}2&-6&2\\0&3&-2\\0&2&2\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right]= \left[\begin{array}{ccc}1\\-5\\-3\end{array}\right]<em></em>

Step-by-step explanation:

Given system of equations are

2x-6y-2z = 1

3y - 2z = -5

2y + 2z = -3

given

2 x - 6 y - 2 z = 1

0 x + 3 y - 2z = -5

0 x +2y + 2 z = - 3

<em>The Matrix form of the given system of equations </em>

<em>A X = B</em>

<em></em>\left[\begin{array}{ccc}2&-6&2\\0&3&-2\\0&2&2\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right]= \left[\begin{array}{ccc}1\\-5\\-3\end{array}\right]<em></em>

4 0
4 years ago
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