All categories

3 years ago

Which symbol makes a true statement? –7.8? –7 a. = b. > c.

Mathematics

1 answer:

Scrat [10]3 years ago

6 0

Which symbol makes a true statement?
–7.8 ? –7
c. <

You might be interested in

<img src="https://tex.z-dn.net/?f=%28%5Csqrt%7B20%7D%20-%202%5Csqrt%7B45%7D%20%2B%5Csqrt%7B5%7D%20%29%2A%5Csqrt%7B5%7D" id="TexF

nataly862011 [7]

Answer:

Step-by-step explanation:

$(\sqrt{20} - 2\sqrt{45} +\sqrt{5} )*\sqrt{5}$

$= \sqrt{20} \times \sqrt{5} - 2 \sqrt{45} \times \sqrt{5} + \sqrt{5} \times \sqrt{5}$

$= \sqrt{100} - 2 \sqrt{225} + \sqrt{25}$

= 10 - 2 × 15 + 5

= 10 - 30 + 5

= 15 - 30

= -15 (Ans)

7 0

3 years ago

A survey reported that 70% of those responding to a national survey of college freshmen were interested in taking summer courses

olya-2409 [2.1K]

Answer:

95% confidence interval: (0.5717,0.8283)

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 49

p = 70% = 0.7

Alpha, α = 0.05

The confidence interval can be calculated as:

$p \pm z_{critical}\sqrt{\dfrac{p(1-p)}{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$0.7 \pm 1.96(\sqrt{\dfrac{0.7(1-0.7)}{49}} ) = 0.7 \pm 0.1283 =(0.5717,0.8283)$

95% confidence interval: (0.5717,0.8283)

5 0

3 years ago

Farmland A farmer has a rectangular plot of land shaped like the figure in the

Stella [2.4K]

4,800 that’s the answer for your equation

5 0

3 years ago

NEED HELP ASAP AND WILL GIVE A MEDAL ***

tekilochka [14]

Tammy should use the machine to maintain or decrease her intensity. 183 is a very high heart rate and indicates that she is working at, or near, a maximal effort. She should not increase the intensity (speed or incline).

7 0

4 years ago

Write a simplified expression for the volume of a cube with side length x+3.

Novosadov [1.4K]

Answer:

Step-by-step explanation:

8 0

3 years ago