3 years ago

What graph of the function to the following compound inequality ??

Mathematics

1 answer:

a_sh-v [17]3 years ago

7 0

7x + 3 ≥ 52
7x ≥ 49
x ≥ 7

The only graph that works for this one is B, so we don't even need to check the other one.

You might be interested in

A bicyclist travels 1 mile in 5 minutes. If m represents minutes, what does the expressions m/5 represent?

Makovka662 [10]

The expression m/5 represents the number of miles the bicyclist traveled in 5 minutes

6 0

3 years ago

Read 2 more answers

Solve 4x² - 3x - 2 = 0 give your solutions to 3 significant figures

yarga [219]

Step-by-step explanation:

4x² - 3x - 2 = 0

0 = 4x² - 3x - 2

0 = 16x - 3x - 2

0 = 13 x -

4 0

2 years ago

Read 2 more answers

A trust fund worth $25,000 is invested in two different portfolios. This year, one portfolio is expected to earn 5.25% interest

solong [7]

Answer:

$12 000 in Portfolio 1 and $13 000 in Portfolio 2

Step-by-step explanation:

The formula for simple interest is

I = Prt

For each portfolio, t = 1 yr

For Portfolio 1, i = 5.25 % = 0.0525

For Portfolio 2, i = 4 % = 0.04

Let x = amount invested in Portfolio 1. Then

25 000 - x = amount invested in Portfolio 2 and

$\begin{array}{rcr}0.0525x + 0.04(25000- x) & = & 1150\\0.0525x+ 1000 - 0.04x & = & 1150\\0.0125x + 1000 & = & 1150\\0.0125x & = & 150\\x & = & 12000\\\end{array}$

25 000 - x = 25 000 - 12 000 = 13 000

So, $12 000 is invested in Portfolio 1 and $13 000 is invested in Portfolio 2.

Check:

$\begin{array}{rcl}0.0525 \times 12000 + 0.04(25000 - 12000)& = & 1150\\630 + 0.04(13000) & = & 1150\\630 + 520 & = & 1150\\1150 & = & 1150\\\end{array}$