All categories

3 years ago

2 + 3 × 16 − 2 × 21 − 3 = 5 14 35 40

Mathematics

1 answer:

Ganezh [65]3 years ago

7 0

Answer: 5

Step-by-step explanation:

Since, According to the BODMAS, when we solve an expression,

We follow the following sequence,

1. Bracket/ parenthesis

2. Of

3. Division

4.Multiplication

5. Addition

6. Subtraction

Here, the given expression is,

$2 + 3\times 16 - 2\times 21 - 3$

Thus, solving the given expression by following the BODMAS,

We get,

Step 1. $2 + 48 - 42 - 3$

Step 2. $50 - 42 - 3$

Step 3. $8-3$

Step 4. 5

You might be interested in

I NEED HELP PLSSS GEOMETRY

jek_recluse [69]

Answer:

Its the first one (top left option)

Step-by-step explanation:

ur in a rush so i wont explain, pls give me brainliest

5 0

2 years ago

the pressure exerted on the floor by the heel of someone's shoe is inversely proportional to the square of the width of the heel

Katen [24]

P = k/w^2

first of all you need to find k 
But I kind of don't like the units of each value so let say 
400KPa = 4 * 10^5 Pa = 4 * 10^5 N/m^2 
2 cm = 2 * 10^-2 m 

input values in the equation 

4*10^5 = k/(4*10^-4) >>> k = 160 N 

P = 160/w^2 
it said if she wears a heel with a width of .5 cm 

P = 160(0.5 * 10^-2)^2 >>> P = 6400 KPa

4 0

3 years ago

A political pollster wants to know what proportion of voters are planning to vote for the incumbent candidate in an upcoming ele

balandron [24]

Answer:

$1.\ \ np\geq 10\\\\2.\ \ n\geq 10x$

Step-by-step explanation:

-Let x be the sample size and n the population size

-The conditions for a one-sample proportion z-test are:

-The sample is randomly selected from the population.

-The sample size is greater than or equal to ten times the population size:

$n\geq 10x\\\\n=2000\\x=150\\10x=1500\\\therefore n\geq 10x$

-The expectation np is greater than or equal to 10:

$np\geq 10\\n=2000, p=0.6\\np=1200\\\\Hence, np\geq 10$

5 0

3 years ago

37/16 rounded by the nearest hundredth.

gayaneshka [121]

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you

6 0

3 years ago

Read 2 more answers

Find the equation for the parabola that passes through the point (-2,-4), with vertex at (3,1) and a vertical axis

Igoryamba

Answer:

see explanation

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (3, 1), hence

y = a(x - 3)² + 1

To find a substitute (- 2, - 4) into the equation

- 4 = a(- 2 - 3)² + 1

- 4 = 25a + 1 ( subtract 1 from both sides )

25a = - 5 ( divide both sides by 25 )

a = - $\frac{5}{25}$ = - $\frac{1}{5}$

y = - $\frac{1}{5}$ (x - 3)² + 1 ← in vertex form

7 0

3 years ago