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2 years ago

1. Solve for x (5x - 10)

Mathematics

2 answers:

mojhsa [17]2 years ago

6 0

Solveeeeeeeeee for x 5(x-2).

trapecia [35]2 years ago

3 0

Answer:

5 (x - 2)

Step-by-step explanation:

1. Factor by grouping

5 (x - 2)

This is the answer.

I hope this helps :)

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What is the approximate solution to the equation 3t=29 ? 0.3263 3.0650 3.3672 9.6667

Norma-Jean [14]

Answer:

9.6667

Step-by-step explanation:

3t=29

Divide each side by 3

3t/3 = 29/3

t = 29/3

Three goes into 29 nine times (3*9 = 27 ) with 2 left over

t = 9 2/3

We know 1/3 = .3 repeating

so 2/3 = .6 repeating

t = 9 .6 repeating

7 0

2 years ago

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What is the circumference of the circle if r = 3,5 feet?

Nady [450]

Answer:

21.98

Step-by-step explanation:

C=2πr C=2d are the formulas of circumference so that would mean the diameter of the circle is 7 since 2 times the radius is the diameter. We then multiply the diameter 7 by PI to get 21.98

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2 years ago

I also need help figuring this out - 2x^2 -7x - 15

Alexus [3.1K]

x = ±√ 7.500 = ± 2.73861

3 0

2 years ago

A certain test preparation course is designed to help students improve their scores on the LSAT exam. A mock exam is given at th

OlgaM077 [116]

Answer:

Interval [16.34 , 21.43]

Step-by-step explanation:

First step. Calculate the mean

$\bar X=\frac{(23+18+23+12+13+23)}{6}=18.666$

Second step. Calculate the standard deviation

$\sigma =\sqrt{\frac{(23-18.666)^2+(18-18.666)^2+(23-18.666)^2+(12-18.666)^2+(13-18.666)^2+(23-18.666)^2}{6}}$

$\sigma=\sqrt\frac{18.783+0.443+18.783+44.435+5.666+18.783}{6}$

$\sigma=\sqrt{17.815}=4.22$

As the number of data is less than 30, we must use the t-table to find the interval of confidence.

We have 6 observations, our level of confidence DF is then 6-1=5 and we want our area A to be 80% (0.08).

We must then choose t = 1.476 (see attachment)

Now, we use the formula that gives us the end points of the required interval

$\bar X \pm t\frac{\sigma}{\sqrt n}$

where n is the number of observations.

The extremes of the interval are then, rounded to the nearest hundreth, 16.34 and 21.43

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2 years ago

1 Given the functions f(x) and g(x) = find the following. 1 + x2 (a) (gºf)(x) 1 (b) (gºf)(6)

trapecia [35]

Okie so I can see you tomorrow and I’ll be right there on time to meet

8 0

2 years ago