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Dmitry [639]
3 years ago
9

Use the equation n^2+n=56 to determine which figure has 56 blocks

Mathematics
2 answers:
Fudgin [204]3 years ago
6 0

Figure 7 has 56 blocks

Ivahew [28]3 years ago
4 0

Answer:

Figure 7 has 56 blocks

Step-by-step explanation:

On edgunity I got it right

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The library in Richmond collected $4,170 in overdue fees last year. This year, the library collected $6,672. What is the percent
melamori03 [73]

Answer:

not sure just need points and

Step-by-step explanation:

4 0
2 years ago
Write a quadratic equations given the roots 5/2 and 9
sukhopar [10]

Answer:

(x-5/2)(x-9).

x^2-5/2x-5/2x+45/2.

Multiply the number by 2.

which is 2(x^2-5/2x-5/2x+45/2).

2x^2-5x-5x+45.

2x^2-10x+45.

7 0
3 years ago
In a large population, 76% of the households have cable tv. A simple random sample of 225 households is to be contacted and the
notsponge [240]

0.017559

It is given that:

Probability of Households Having cable TV, p₀ = 76% = 0.76

Therefore,

The probability that the Households not having cable TV = 1 - 0.76 = 0.24

Sample size, n = 225 households

sample proportions is less than 82% i.e p = 0.82

Now,

The standard error, SE = \sqrt{} \frac{0.76(1-0.76)}{225}

= 0.02847

Z = \frac{0.82-0.76}{0.02847}

Z = 2.107

therefore, P(sample porportions < 0.82) = P(Z < 2.107)

now from the p value from the Z table we get P(sample porportions < 0.82) =  0.017559

To know more about standard deviations visit: brainly.com/question/475676

#SPJ4

3 0
1 year ago
Which of the following types of statement can be used to explain the steps of a proof? Choose all that apply. A. Postulate B. Th
slamgirl [31]
A postulate and a theorem :)
4 0
2 years ago
Read 2 more answers
What is 500% of 120? show work
Nadusha1986 [10]
500% of 120

We can set up a proprtion

120/x=100/500<span>   </span>
<span>120=0.2*x       </span>
<span>120/0.2=x </span>
<span>600=x </span>
<span>x=600

Final answer: 600
</span>


6 0
3 years ago
Read 2 more answers
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