1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ad libitum [116K]
3 years ago
7

Which one of these expressions represent solutions to the equation y2=100

Mathematics
1 answer:
andriy [413]3 years ago
8 0

y^2=100

y = √100

y = 10 and y = - 10

Answer

E. -10  

F. 10


You might be interested in
A recent survey showed that among 100 randomly selected college seniors, 20 plan to attend graduate school and 80 do not. Determ
Hunter-Best [27]

Answer:

The 68% confidence interval for the population proportion of college seniors who plan to attend graduate school is (0.16, 0.24).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

A recent survey showed that among 100 randomly selected college seniors, 20 plan to attend graduate school and 80 do not.

This means that n = 100, \pi = \frac{20}{100} = 0.2

68% confidence level

So \alpha = 0.32, z is the value of Z that has a pvalue of 1 - \frac{0.32}{2} = 0.84, so Z = 0.995.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2 - 0.995\sqrt{\frac{0.2*0.8}{100}} = 0.16

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.2 + 0.995\sqrt{\frac{0.2*0.8}{100}} = 0.24

The 68% confidence interval for the population proportion of college seniors who plan to attend graduate school is (0.16, 0.24).

4 0
3 years ago
How do I solve to get the answer for: 2t + 8 ≥ −4(t + 1)
Rzqust [24]
2t + 8 ≥ -4t - 4
2t+4t ≥ -8-4
6t ≥-12
t ≥ -12/6
t ≥ -2
4 0
3 years ago
What is the measure of the missing angle in the triangle below?
nirvana33 [79]

Answer:

<em>41 degrees</em>

Step-by-step explanation:

<em>According to Angle Sum Property, the sum of the internal angles of a triangle is equal to 180 degrees.</em>

<em>Therefore,</em>

<em>52 + 87 + ? = 180</em>

<em>139 + ? = 180</em>

<em>? = 180 - 139</em>

<em>? = 41 degrees</em>

8 0
2 years ago
(2x - 3)²<br> Special cases
Bogdan [553]

Answer:

4x²+12x+9

Step-by-step explanation:

1.   2x times 2x = 4x²

2.  2x times 3 = 12x

3.  3 x 3 = 9   or  3² also equals 9

4 0
3 years ago
Read 2 more answers
The first hexagon which is 5 is dilated to form the second hexagon which is 6.25
pshichka [43]
ANSWER
Scale factor is 1.25

The dilation is an enlargement.

EXPLANATION

Let the scale factor of the dilation be k, then

5 \times k = 6.25


We divide both sides by 5 to get,


k =  \frac{6.25}{5}


This implies that,

k = 1.25

Since the scale factor is more than one, the dilation is an enlargement.
7 0
3 years ago
Read 2 more answers
Other questions:
  • True of false:There is always one solution of a system of linear equations.
    8·1 answer
  • What is the x-intercept for the following linear equation:
    10·1 answer
  • Choose the equation that matches the following problem.
    6·1 answer
  • 3 cm, 7 cm, 7 cm, 7 cm, 9 cm, 11 cm, 12 cm what is the mean of the data set?
    14·2 answers
  • X^2+10x-7 / x^2+10x+25=0 <br> how do i solve for x?
    12·2 answers
  • Convert 4.138138 to a fraction
    13·1 answer
  • PLEASE HELP ASAP!!!!!!!! What is the volume of the prism?
    5·1 answer
  • Morgan is walking her dog on an 8-meter-long leash. She is currently 500 meters from her house, so the maximum and minimum dista
    9·1 answer
  • two triangles have the same heights one triangle has a base that is four times the base of the other triangle are the bases and
    5·1 answer
  • Emily drew a scale drawing of a house and its lot. The back patio is 42 millimeters long in the drawing. The actual patio is 27
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!