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3 years ago

What number multiplied by itself 3 times equals 9?

Mathematics

2 answers:

Arlecino [84]3 years ago

4 0

The is no number.I hope this helps

balandron [24]3 years ago

4 0

When you multiply the number 3 by 3 you will get the answer of 9.

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Look at thetriangles diagram.<br> The value of x is ___ °

NemiM [27]

By solving a linear equation we will see that the value of x is 10.

<h3></h3><h3>How to find the value of x?</h3>

Remember that for any triangle, the sum of all internal angles is always equal to 180°.

Here only look at triangle BCD, we know that:

m∠DBC = m∠ABC = 3x

m∠BCD = m∠ACB + m∠ABD = 2x + 65°

m∠ADC = 65°

Now we can write the linear equation as:

3x + 2x + 65° + 65° = 180°

5x + 130° = 180°

5x = 180° - 130°

5x = 50°

x = 50°/5 = 10°

The value of x is 10.

Learn more about triangles:

brainly.com/question/14285697

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9 months ago

Henry is designing a model for a dome shaped glasshouse. He creates the model and records the horizontal distance from the edge

dolphi86 [110]

Answer:

Correct choice is B

Step-by-step explanation:

All given options represent quadratic function. Let the equation of this quadratic function be

$f(x)=ax^2+bx+c.$

Then

1. $f(0)=2=a\cdot 0^2+b\cdot 0+c\Rightarrow c=2;$

2. $f(1)=7.5=a\cdot 1^2+b\cdot 1+c\Rightarrow 7.5=a+b+2;$

3. $f(2)=12=a\cdot 2^2+b\cdot 2+c\Rightarrow 12=4a+2b+2.$

Solve the system of two equations:

$\left\{\begin{array}{l}a+b+2=7.5\\4a+2b+2=12\end{array}\right.\Rightarrow\left\{\begin{array}{l}a=5.5-b\\4(5.5-b)+2b=10\end{array}\right.$

Then

$22-4b+2b=10,\\ \\-2b=-12,\\ \\b=6,\\ \\a=5.5-6=-0.5.$

Thus, the equation of the function is

$f(x)=-\dfrac{1}{2}x^2+6x+2.$

Note that

$f(3)=-\dfrac{1}{2}\cdot 3^2+6\cdot 3+2=-4.5+20=15.5;$

$f(4)=-\dfrac{1}{2}\cdot 4^2+6\cdot 4+2=18.$

8 0

3 years ago

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Evaluate (Two-fifths) cubed. Check all that apply.

Daniel [21]

Answer:

B.The expanded form is (Two-fifths) (two-fifths) (two-fifths).

E.Two-fifths)cubed = StartFraction 8 Over 125 EndFraction

5 0

3 years ago

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IM TAKING BENCHMARK PLEASE HELP!!!!<br><br> f(x) = -2x^2 +2x + 4<br><br> Find f(1)

andriy [413]

Answer:

Step-by-step explanation:

plug 1 into the equation and get

-2(1)^2 +2(1) +4

simplify

-2+2+4

add

6 0

2 years ago

Given right triangle ABC, what is the value of tan (A)

bearhunter [10]

Answer:

12/5

Step-by-step explanation:

Recall that trig function tan = opposite / adjacent

Find tan A

Opposite side of angle A = 24

Adjacent of A = 10

Tan (A) = 24/10

24/10 can be simplified to 12/5

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2 years ago

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