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enyata [817]
3 years ago
10

Which is equivalent to (4 × 2) × 7? 6 × 7 8 + 5 8 × 7 4 × (2 + 7)

Mathematics
2 answers:
d1i1m1o1n [39]3 years ago
5 0

Answer:

8 × 7

Step-by-step explanation:

(4 × 2) × 7

We can multiply what is inside the parentheses

(8) × 7

irga5000 [103]3 years ago
4 0

Answer:

8*7

Step-by-step explanation:

Multiply what is inside the parentheses first, (PEMDAS)

(4*2)*7

8*7

Hope this helps! :)

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Use the drop-down menus to identify the parts of the pyramid.
sveticcg [70]

Answer:

D corresponds to the base.

Ethire C or A corresponds to the height.

I'm sorry, that's all I know. I'm new to this kind of math.

Step-by-step explanation:

4 0
3 years ago
Assume that a sample is used to estimate a population proportion p. find the margin of error e that corresponds to the given sta
Leno4ka [110]

Let p be the proportion. Let c be the given confidence level , n be the sample size.

Given: p=0.3, n=1180, c=0.99

The formula to find the Margin of error is

ME = z _{\alpha/2}  \sqrt{\frac{p*(1-p)}{n}}

Where z (α/2) is critical value of z.

P(Z < z) = α/2

where α/2 = (1- 0.99) /2 = 0.005

P(Z < z) = 0.005

So in z score table look for probability exactly or close to 0.005 . There is no exact 0.005 probability value in z score table. However there two close values 0.0051 and 0.0049 . It means our required 0.005 value lies between these two probability values.

The z score corresponding to 0.0051 is -2.57 and 0.0049 is -2.58. So the required z score will be average of -2.57 and -2.58

(-2.57) + (-2.58) = -5.15

-5.15/2 = -2.575

For computing margin of error consider positive z score value which is 2.575

The margin of error will be

ME = z _{\alpha/2}  \sqrt{\frac{p*(1-p)}{n}}

= 2.575  \sqrt{\frac{0.30*(1-0.3)}{1180}}

= 2.575 * 0.0133

ME = 0.0342

The margin of error is 0.0342

7 0
3 years ago
In you own words what does the term American Dream mean to you?
ira [324]

Answer:

What the American dream means to me is freedom. By freedom I mean everyone has the rights that a American citizen has. But also not having everyone thing be about politics and have everything be about what’s best for the American people, but also a place where no one is judged for what they believe in, but instead have their beliefs glorified. That is what the *American Dream* Means to me.

*-This is all in my on words-*

(Hope this helps)

Yours Truely, TheAnimeCatUwU

4 0
3 years ago
A bag of crisps weighs 42g. Sam ate two thirds of the bag.<br> How many grams were left? Help please
slega [8]

Answer:

I think the answer is 14 grams correct me if i'm wrong hope this helps :)

Step-by-step explanation:

8 0
3 years ago
3 of 8<br> The area of a circle is 16.71cm2.<br> Find the length of the radius rounded to 2 DP.
Cerrena [4.2K]

Answer:

Radius = 2.31 cm

Step-by-step explanation:

Area of circle = 16.71 square centimeters

\pi r^2 = 16.71 \\3.14r^2=16.71\\r^2=\frac{16.71}{3.14}\\r^2=5.32\\\sqrt{r^2}=\sqrt{5.32}\\r=2.306

Radius of circle = 2.31 centimeter

6 0
3 years ago
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