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Firdavs [7]
3 years ago
6

the formula for the area of a triangle is a=1/2bh in which b represents the length of the base and h represents the height. If a

triangel has an area of 287 mm and the height is 18 mm, what is the b=meausre of the base?
Mathematics
1 answer:
Igoryamba3 years ago
7 0

Answer:

287/9

Step-by-step explanation:

so the formula is a=1/2bh

A=287

B=?

H=18

:287=1/2b*18

287=b*9

b=287/9

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ANY NUMBER THAT HAS A X BEHIND IT..

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8 0
3 years ago
Please help and show work!!
serious [3.7K]

17.

x = -2 is not a solution of -1 < x < 5 because -2 < -1 (-1 < -2 < 5 FALSE).

18.

m = 5 is a solution of 5 ≤ m because 5 ≤ 5 ( 5 ≤ m → m ≥ 5 greater than 5 or equal 5, 5 is equal 5)

19.

k = 10 is not solution of 2k - 3 < 1 because:

put the value of k to the inequality:

2(10) - 3 < 1

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5 0
3 years ago
Find the cube root.
nignag [31]

9514 1404 393

Answer:

  (d)  5a²

Step-by-step explanation:

  \displaystyle\sqrt[3]{125a^6}=\sqrt[3]{5^3a^6}=\sqrt[3]{(5a^2)^3}=\boxed{5a^2}

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The applicable rules of exponents are ...

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4 0
3 years ago
Use the formula for the difference of cubes to show that 125 - 27 = 98
IrinaVladis [17]

The formula is

a^3 - b^2 = (a - b)(a^2 + ab + b^2)  so plugging in  the given values:-

a = cube root of 125 = 5 and b = cube root of 27 = 3 ,  we get:-

125 - 27 = (5 - 3)(5^2 + 5*3 + 3^2)

= 2 * 49

= 98   answer

3 0
3 years ago
I need step by step help with: 3x^1/3 + 2x^2/3 =5
Luba_88 [7]
If you write y=x^{1/3}, you'll notice this is really just a quadratic equation that can be factorized:

2x^{2/3}+3x^{1/3}-5=0\iff 2y^2+3y-5=0\iff (2y+5)(y-1)=0\iff(2x^{1/3}+5)(x^{1/3}-1)=0

So you have

2x^{1/3}+5=0\implies 2x^{1/3}=-5\implies x^{1/3}=-\dfrac52\implies x=-\dfrac{125}8

and

x^{1/3}-1=0\implies x^{1/3}=1\implies x=1
5 0
3 years ago
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