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zimovet [89]
3 years ago
15

Find the value of X.

Mathematics
2 answers:
Leto [7]3 years ago
5 0
Theres an easier way. Pythagorean theorem-
A^2+B^2=C^2
A and B are legs while C is the hypotenuse or slanted one.
So rearrange formula.
C^2 - A^2=B^2
1225 - 441 = B^2
784= B^2
Square root it now
28=B
neonofarm [45]3 years ago
4 0
In the question you will do

35 is the biggest side it’s named by hypotenuse

So you will do 35=21 to the power x +x

So after you do it it will be

X=441 -35 it will be 406 and after you finish you will do it in the calculator so

The Answer is : 20.15
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There are 11 blue marbles and 7 red
Rufina [12.5K]
Since the blue marbles are 11 and the red marbles are 7 you start will the red marbles first because the question say red marbles to blue marbles
7:11
8 0
2 years ago
Which is the polynomial function of lowest degree with rational real coefficients, a leading coefficient of 3 and roots StartRoo
anastassius [24]

Answer:

a) f(x)=3x^{3}-6x^{2}-15x+30

Step-by-step explanation:

1) In this question we've been given "a", the leading coefficient. and two roots:

x_{1}=\sqrt{5}\:x_{2}=2

2) There's a theorem, called the Irrational Theorem Root that states:

If one root is in this form x'=\sqrt{a}+b  then its conjugate x''=\sqrt{a}-b. is also a root of this polynomial.

Therefore

x_3=-\sqrt{5}

3) So, applying this Theorem we can rewrite the equation, by factoring. Remembering that x is the root. Since the question wants it in this expanded form then:

f(x)=3(x-\sqrt{5})(x+\sqrt{5})(x-2)\Rightarrow 3x^{3}-6x^{2}-15x+30

4 0
3 years ago
Read 2 more answers
The x- and Y negative coordinates have the same sign​
ale4655 [162]

Answer:

if the x and y coordinates that mean that number is the solution to whatever the question is.

Step-by-step explanation:

4 0
3 years ago
Square root 5 is closest to what real number?
gladu [14]
The square root of 5 is 2.23 so it would be closer to 2
7 0
3 years ago
5x + 2y = 3<br> 2x+3y=-1<br> Solve
professor190 [17]

Answer:

x = 1

y = -1

Point = (1,-1)

Step-by-step explanation:

2x + 3y = -1   =   y = -2/3 - 1/3

5x + 2(-2/3 - 1/3) = 3

5x - 1 1/3 - 2/3 = 3

5x - 2 = 3

<u>     +2    +2</u>

5x = 5

<em><u>x = 1</u></em>

2(1) + 3y = -1

2 + 3y = -1

<u>-2           -2</u>

3y = -3

<em><u>y = -1</u></em>

3 0
3 years ago
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