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3 years ago

Translate into algebraic terms...7 less than 5 times a number

Mathematics

1 answer:

Nutka1998 [239]3 years ago

5 0

Answer: 5x-7

Step-by-step explanation:

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I need help with this problem

Anarel [89]

The midpoint lines are half the opposite side length.

Line DE is given as 7 , So Line F = 7 x 2 = 14

Line EF is given as 12, so Line D = 12 x 2 = 24

Line DF is given as 16, so line E = 16 x 2 = 32

The perimeter is the sum of the 3 sides:

Perimeter = 14 + 24 + 32 = 70

6 0

3 years ago

PLEASE HELP<br> answer both of the questions in the photo please

Rasek [7]

Answer:

-6

Step-by-step explanation:

-6n-5=31

-6n=36

n=-6

-28=-3n+5

3n=5+28

3n=33

n=11

8 0

2 years ago

What is the Y intercept of the equation Y equals 8X -24

kiruha [24]

Answer:

Step-by-step explanation:

y intercept formula

y=mx+b

b is the y intercept

7 0

3 years ago

A random sample is selected from a population with mean μ = 100 and standard deviation σ = 10. Determine the mean and standard d

Scilla [17]

Answer:

a) $\mu = 100, s = 3.015$

b) $\mu = 100, s = 2.425$

c) $\mu = 100, s = 1.581$

d) $\mu = 100, s = 1.348$

e) $\mu = 100, s = 0.477$

f) $\mu = 100, s = 0.953$

Step-by-step explanation:

The mean is the same no matter the size of the sample.

The standard deviation of the sample is the standard deviation of population divided by the square root of the length of the sample.

So:

(a) n = 11

$\mu = 100$

$s = \frac{10}{\sqrt{11}} = 3.015$

(a) n = 17

$\mu = 100$

$s = \frac{10}{\sqrt{17}} = 2.425$

(c) n = 40

$\mu = 100$

$s = \frac{10}{\sqrt{40}} = 1.581$

(d) n = 55

$\mu = 100$

$s = \frac{10}{\sqrt{55}} = 1.348$

(e) n = 440

$\mu = 100$

$s = \frac{10}{\sqrt{440}} = 0.477$

(f) n = 110

$\mu = 100$

$s = \frac{10}{\sqrt{110}} = 0.953$

6 0

3 years ago

(x – y)(x2 – 3y – 5)

pickupchik [31]

Solution: ( x - y ) ( 2x - 3y) - 5x + 5y

5 0

3 years ago