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Margarita [4]
2 years ago
8

1.2 The following pattern is given: -100,-97; -91;

Mathematics
1 answer:
elena55 [62]2 years ago
7 0

Brainly 505 Server Error

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Use the given data to find the minimum sample size required to estimate the population proportion. margin of​ error: 0.0080.008​
nadezda [96]

Formula for the Minimum Sample size n=(\frac{z}{E})^2\hat{p}\hat{q}

The least biased estimate for p and q is 1/2.

z_{\frac{\alpha }{2}}=z_{{0.01}{2}}=2.58

Thus

n=(\frac{2.58}{0.08})^2*0.5*0.5

n=260.015

n\approx260

3 0
3 years ago
Use proportional reasoning to determine the value of a in the proportion shown below.
torisob [31]
We have
<span>3/5=(a+5)/25
3/5=(5/5)*(3/5)=15/25
therefore
15/25=</span>(a+5)/25<span>
15=a+5------------------------ > a=10

the answer is the option </span>a = 10
8 0
3 years ago
Read 2 more answers
1. Find the surface area of the square pyramid shown below?
Igoryamba

Answer:

1. 40.00 sq units

2. 37.5 sq units

Step-by-step explanation:

1. Given slant height as 3 and the square base side as 4,

-The surface area of a right squared pyramid is calculated by summing the areas of the 4 triangles and the square base:

Area=Area \ Triangles+Base  \ Area\\\\=4(\frac{1}{2}bh)+s^2\\\\=4(0.5\times 4\times 3)+4^2\\\\=24+16\\\\=40

Hence, the area of the square pyramid is 40.00 sq units

2. The surface area of a cube is equivalent to 6 times the side of one face.

-Given the dimension of the sides as 2.5, surface area is obtained as:

A=6s^2\\\\=6(2.5\times2.5)\\\\=37.5

Hence, the surface area of the cube is 37.5 sq units

8 0
3 years ago
Read 2 more answers
How many solutions does the following system of equations have y=5/2x+2 2y=5x+8
irakobra [83]

Answer:

No solutions.

Step-by-step explanation:

If you normalize the second one by dividing by 2, you get:

y = 5/2x+4.

Now you see that both have the same slope (5/2). They are parallel lines that never intersect.

7 0
3 years ago
OMG HELP PLS IM PANICKING OMG OMG I GOT A F IN MATH AND I ONLY HAVE 1 DAY TO CHANGE MY GRADE BECAUSE TOMORROW IS THE FINAL REPOR
patriot [66]

Answer:

3 tens

2 hundreds

5 thousands

7 thousands

6 0
3 years ago
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