2 years ago

Solve the inequality 4x - 7<5

Mathematics

1 answer:

Alexandra [31]2 years ago

8 0

Answer:

x ∈ (-oo ; 3)

Step-by-step explanation:

4x - 7 < 5

4x < 5 + 7

4x < 12

x < 12 : 4

x < 3

x ∈ (-oo ; 3)

You might be interested in

HELP OR I WILL EAT ALL YOUR COOKIES

pentagon [3]

Answer:

i think it is a because it makes sense and also you wouldnt

Step-by-step explanation:

3 0

2 years ago

Find the area. Answer without units.<br><br>I need this asap thx (:

finlep [7]

Answer:

I think the answer is 43.8

5 0

1 year ago

Read 2 more answers

Simplify the left side of equation so it looks like the right side. cos(x) + sin(x) tan(x) = sec (x)

uranmaximum [27]

Step-by-step explanation:

Consider LHS

$\cos(x) + \sin(x) \tan(x) = \sec(x)$

Apply quotient identies

$\cos(x) + \sin(x) \times \frac{ \sin(x) }{ \cos(x) } = \sec(x)$

Multiply the fraction and sine.

$\cos(x) + \frac{ \sin {}^{2} (x) }{ \cos(x) } = \sec(x)$

Make cos x a fraction with cos x as it denominator.

$\cos(x) \times \cos(x) = \cos {}^{2} (x)$

$\frac{ \cos {}^{2} (x) }{ \cos(x) } + \frac{ \sin {}^{2} (x) }{ \cos(x) } = \sec(x)$

Pythagorean Identity tells us sin squared and cos squared equals 1 so

$\frac{1}{ \cos(x) } = \sec(x)$

Apply reciprocal identity.

$\sec(x) = \sec(x)$

7 0

2 years ago

You are attending a college night. There is a different school in each classroom. Of the schools in attendance 30% had a sports

elixir [45]

Answer:

0.10

Step-by-step explanation:

Technically it's 0.12 but I only say this because they rounded by from 58 to 60 in their question

7 0

2 years ago

In a group of Year 9 students, the ratio of boys to girls is 9 : 7. There are 4 more boys than girls in this group. How many stu

KATRIN_1 [288]

Answer: 32

Step-by-step explanation:

There are 18 boys and 14 girls (4 more boys than girls. 32 students total.

7 0

2 years ago