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vaieri [72.5K]
2 years ago
10

Hi guys im stuck on this maths question (2/5)^-3

Mathematics
2 answers:
Sholpan [36]2 years ago
6 0

Answer:

15.625

Step-by-step explanation:

egoroff_w [7]2 years ago
3 0

Answer:

(\frac{2}{5} ) {}^{ - 3}  \\  =  (\frac{a}{b} ) {}^{ - x}  =  (\frac{b}{a} ) {}^{x}  \\  so  \:  \:  \:  \:  \:  \:  (\frac{2}{5} ) {}^{ - 3}  \\  =  (\frac{5}{2} ) {}^{3}  \\  =   \frac{5 {}^{3} }{2 {}^{3} }  \\  \:  = \:    \frac{125}{8}

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What is the similarity ratio of PQR to VXM?
Nastasia [14]

Answer:

3

Step-by-step explanation:

The correct answer is:

3

Explanation

review

△WXY~△GEF.

6

3

6

Y

X

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2

1

2

F

E

G

What is the similarity ratio of △WXY to △GEF?

Simplify your answer and write it as a proper fraction, improper fraction, or whole number.

If two triangles are similar, their similarity ratio is the ratio between a side length in the first triangle and the corresponding side length in the second triangle.

solve

Look at the triangles.

6

3

6

Y

X

W

2

1

2

F

E

G

The similarity ratio of △WXY to △GEF is the ratio between a side length in △WXY and the corresponding side length in △GEF. So, the similarity ratio is  

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4 0
2 years ago
What is the value of x in the solution to the system of linear equations? {y=3x+2 y=x-4 a –7 b –3 c 1 d 5
lyudmila [28]

Since y must equal both 3x+2 and x-4, we deduce that 3x+2 and x-4 must equal each other. So, we have

3x+2=x-4 \iff 2x+2=-4 \iff 2x=-6 \iff x=-3

5 0
3 years ago
Read 2 more answers
Can someone help me find the answer to these 3 problems if so thank you .
alexandr1967 [171]

Answer:

1. r+s²=49

2. pq²=24

3. -4xy-6x²+2x²y-6y= -54

Step-by-step explanation:

1. r+s²=0+7²=49

2. pq²=(6)(2)²=6(4)=24

3. -4xy-6x²+2x²y-6y= -4(3)(2)-6(3)²+2(3)²(2)-6(2)

                                = -24-6(9)+2(9)(2)-12

                                = -24-54+36-12

                                = -78+36-12

                                = -42-12

                                = -54

5 0
2 years ago
A box spring in the shape of a rectangular prism has a length of a 40 in., a width of 80 in., and a height of 4 of 9 in. what is
gladu [14]
19,200 ! To get the surface area of the rectangular prism you have to get the area of each side. Length x Width x Sides(6 in your case).
7 0
3 years ago
(a)
grin007 [14]

Answer:

x=−41−−239 ​​=−41​+4i​239 ​=−0.2500−3.8649i x=−41+−239 ​​=−41​−4i​239  =−0.2500+3.8649i

Step-by-step explanation:

5 0
3 years ago
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