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2 years ago

In a class of 20 students,12 were girls and the rest were boys

Mathematics

2 answers:

Ira Lisetskai [31]2 years ago

7 0

It’s definitely A (:

VARVARA [1.3K]2 years ago

4 0

A) 8/20 —>simplified as 2/5
b) 12/20 —> simplified as 3/5
c) 60% girls
4) 0.4 boys

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Please rply asap brainliest

Ira Lisetskai [31]

Answer:

x = 99,53633682

Step-by-step explanation:

sin(34) = x/178

x = sin(34)×178

x = 99,53633682

3 0

2 years ago

3. Find f[h(a+4)], given the functions below. *

mote1985 [20]

Answer:

C 5a^2 +70a +240

Step-by-step explanation:

We have given these following functions:

$f(x) = 5x, g(x) = -2x + 1, h(x) = x^2 + 6x + 8$

h(a+4)

This function is:

$h(a+4) = (a+4)^2 + 6(a + 4) + 8$

$h(a+4) = a^2 + 8a + 16 + 6a + 24 + 8$

$h(a+4) = a^2 + 14a + 48$

f[h(a+4)]

$f(x) = 5x$

Thus

$f(h(a+4)) = f(a^2+14a+48) = 5(a^2 + 14a + 48) = 5a^2 + 70a + 240$

The correct answer is given by option C.

8 0

2 years ago

Find the product. (-2x^2)^3 ·3x

Dafna11 [192]

Answer:

-24 x^7

Step-by-step explanation:

(-2x^2)^3 ·3x

(-2x^2) (-2x^2) (-2x^2)*3x

-8 x^6 *3x

-24 x^7

3 0

3 years ago

Which of the following expressions is correctly written in scientific notation

katrin [286]

Answer:

it is the 3 one

Step-by-step explanation:

7 0

2 years ago

The owner of a new restaurant wants to have seating for more than 75 people. There is currently a

hoa [83]

There are 3 seats currently, and there will be 4m extra seats if he buys m tables.

So, buying m tables give a total of $4m+3$ seats.

If we want this total to be at least 75, we have

$4m+3\geq 75 \iff 4m\geq 72 \iff m\geq 18$

6 0

3 years ago