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3 years ago

PLZ HELP! MATH >__<

Mathematics

2 answers:

harkovskaia [24]3 years ago

7 0

My answer would be 276m2
k12

Sunny_sXe [5.5K]3 years ago

3 0

Lateral area = surface area not including the bases.

To find this area we just need to add up the area of all of those sides.

The 2 bases are the same area and defined by the length and width.

That leaves the 2 sides defined by length and height,
plus the 2 defined by width and height.

Of course, to find the area of a rectangle, we just multiply together its two dimensions.
length × height = 14 × 6 = 84
width × height = 9 × 6 = 54

2 × 84 + 2 × 54 = 276 m²

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Maxine spent 15 hours doing her homework last week. This week she spent 18 hours doing homework. She says that she spent 120% mo

Vadim26 [7]

Answer:

she is correct beacuse if she worked more harder this week than last week it shows beacuse she did 15 hours

and she did 18 hours as well

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3 years ago

Given that f(x) = x² + 4x, evaluate f(-2). -4 -8 -12

Aleks [24]

f(x) = x² + 4x
so
f(-2) = (-2)² + 4(-2)
f(-2) = 4 - 8
f(-2) = -4

answer
-4

6 0

3 years ago

Read 2 more answers

PLEASE ANSWER + BRAINLIEST!!

marshall27 [118]

X^4 + 2x^2 - 24
= (x^2 + 6)(x^2 - 4)
= (x^2 + 6)(x - 2)(x + 2)

x^4 - 9x^2 + 18
= (x^2 - 6)(x^2 - 3)

7 0

3 years ago

2. “The inverse of every function must be a function itself.” State whether you agree or disagree with the statement providing e

Jet001 [13]

Technically this is not necessarily true for all. A function has each input mapped to one output, therefore there can be two inputs that have the same output. However, when inverted, the input will have two outputs, which is not a function. For example with (1,3) (2,3) (3,4) (4,5) this is a function but switched (3,1) (3,2) ! Two inputs have the same output, which is not a function!

3 0

3 years ago

Read 2 more answers

Game consoles: A poll surveyed 341 video gamers, and 89 of them said that they prefer playing games on a console, rather than a

Orlov [11]

Answer:

Step-by-step explanation:

Hello!

The objective is to test if the population proportion of gamers that prefer consoles is less than 28% as the manufacturer claims.

Of 341 surveyed players, 89 said that they prefer using a console.

The sample resulting sample proportion is p'= 89/341= 0.26

If the company claims is true then p<0.28, this will be the alternative hypothesis of the test.

H₀: p ≥ 0.28

H₁: p < 0.28

α: 0.05

To study the population proportion you have to use the approximation of the standard normal $Z= \frac{p'-p}{\sqrt{\frac{p(1-p)}{n} } }$ ≈N(0;1)

$Z_{H_0}= \frac{0.26-0.28}{\sqrt{\frac{0.28*0.72}{341} } }= -0.82$

This test is one-tailed left, i.e. that you'll reject the null hypothesis to small values of Z, and so is the p-value, you can obtain it looking under the standard normal distribution for the probability of obtaining at most -0.82:

P(Z≤-0.82)= 0.206

Using the p-value approach:

If p-value ≤ α, reject the null hypothesis

If p-value > α, don't reject the null hypothesis

The decision is to not reject the null hypothesis.

Then at a level of 5%, you can conclude that the population proportion of gamers that prefer playing on consoles is at least 28%.

I hope this helps!

4 0

3 years ago