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2 years ago

Please help I don't understand!

Mathematics

2 answers:

Gelneren [198K]2 years ago

8 0

The answer is 25 trust me .

Diano4ka-milaya [45]2 years ago

7 0

Answer:

Step-by-step explanation:

As the triangles within the bigger triangle are similar, the sides are in proportion.

⇒ $\frac{18}{30} = \frac{15}{w}$

⇒ $\frac{3}{5} = \frac{15}{w}$

⇒ 3w = 75

⇒ w = 25

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__________ notation encodes a real number as a mantissa multiplied by a power (exponent) of 2.

Korvikt [17]

Answer:

Step-by-step explanation:

floating point

8 0

2 years ago

2 DIVIED BY 1/4= 1/6 DIVIED BY 2=

Iteru [2.4K]

2 dive by 1/4= 8

6 dive by 1/3 = 18

2 dive by 1/3 = 6

5 dive by 1/2= 10

1/6 dive by 2= 1/12

1/3 dive by 6= 1/18

3 dive by 1/4= 12

1/2 dive by 5= 1/10

4 0

3 years ago

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Please help!! For each sum or product, determine whether the result is a rational number or an irrational number. Then choose th

Troyanec [42]

1. Rational/The sum of two rationals is always rational
2. Irrational/ the sum of a rational and an irrational is always irrational
3. Irrational/The product of a nonzero rational and an irrational is always irrational
4. Rational/The product of two rationals is always rational

Pretty much all the irrational numbers are the ones with radical signs over them and the rational numbers are the fractions and whole numbers. Once you identify the two numbers to be rational or irrational, you can then find your answer within the second part of the answers.

4 0

3 years ago

Given: F(x) = 5x - 6 and G(x) = x - 4

fomenos

Answer:

Correct choice is $\dfrac{x+26}{5}$

Step-by-step explanation:

1. If $F(x)=5x-6,$ then you can find the inverse $F^{-1}(x):$

$y=5x-6,\\ \\5x=y+6,\\ \\x=\dfrac{y+6}{5},\\ \\F^{-1}(x)=\dfrac{x+6}{5}.$

2. If $G(x)=x-4,$ then

$y=x-4,\\ \\x=y+4,\\ \\G^{-1}(x)=x+4.$

3. Hence,

$G^{-1}(F^{-1}(x))=G^{-1}\left(\dfrac{x+6}{5}\right)=\dfrac{x+6}{5}+4=\dfrac{x+26}{5}.$

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3 years ago

Peter plans to build a tree house in his back yard. He needs to know how many square feet of lumber he should buy for the floor.

11Alexandr11 [23.1K]

Answer:

20n

Step-by-step explanation:

Multiply square feet per person times the number of persons to find square feet.

The units analysis looks like this:

$\dfrac{\text{ft}^2}{\text{person}}\times \text{persons}=\text{ft}^2\\\\20\dfrac{\text{ft}^2}{\text{person}}\times n\,\text{persons}=20n\,\text{ft}^2$

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3 years ago

Read 2 more answers