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
larisa [96]
2 years ago
9

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-response question.

There are 15 questions on the test and the students have been given 55 minutes to complete it. Which value could replace x in the table?
a.7 – m
b.23 – m
c.8(15 – m)
d.8(15) – m
Mathematics
1 answer:
kakasveta [241]2 years ago
4 0

Answer:

It would be 8(15-m)

You might be interested in
Convert 3/18 to a decimal
frutty [35]
3/18 = 0.166667

hope this helps . 
3 0
3 years ago
Read 2 more answers
The measure of an angle is 79 what is the measure of its complementary angle
malfutka [58]

Answer:

x + 79 = 90

x = 11 degrees

Step-by-step explanation:

3 0
3 years ago
Solve 3(x+3) >4(x-4)
frutty [35]

3 X + 9 is greater than 4 x minus 16

+ 25 is greater than x

6 0
3 years ago
Solve the logarithmic equation. Be sure to reject any value of x that is not in the domain of the original logarithmic expressio
KIM [24]

Answer:

Therefore x=9

Step-by-step explanation:

Give that,

log x+ log (x-3) = log 54

log x(x-3) =log 54             [    log_ca+log_c b=log_c(ab)   ]

x(x-3) = 54

Now expand the above equation to get a quadratic equation

x²-3x=54

⇒x²-9x+6x-54=0

⇒x(x-9)+6(x-9)=0

⇒(x-9)(x+6)=0

⇒x-9=0  or, x+6=0

⇒x=9,-6

Now putting x= -6 in the given expression,

log(-6)+log(-6-9)=log 54.

Since log (-6) does not exist.

Therefore x=9

8 0
3 years ago
In 2008, data from the Center for Disease Control revealed that 28.5% of all male teenagers, aged 18-19 and attending U.S. colle
m_a_m_a [10]

Answer:

a) H0 : u = 28.5%

H1 : u < 28.5%

b) critical value = - 1.645

c) test statistic Z= - 1.41

d) Fail to reject H0

e) There is not enough evidence to support the professor's claim.

Step-by-step explanation:

Given:

P = 28.5% ≈ 0.285

X = 210

n = 800

p' = \frac{X}{n} = \frac{210}{800} = 0.2625

Level of significance = 0.05

a) The null and alternative hypotheses are:

H0 : u = 28.5%

H1 : u < 28.5%

b) Given a 0.05 significance level.

This is a left tailed test.

The critical value =

-Z_0.05 = -1.645

The critical value = -1.645

c) Calculating the test statistic, we have:

Z = \frac{p' - P}{\sqrt{\frac{P(1-P)}{n}}}

Z = \frac{0.2625 - 0.285}{\sqrt{\frac{28.5(1-28.5)}{800}}}

Z = -1.41

d) Decision:

We fail to reject null hypothesis H0, since Z = -1.41 is not in the rejection region, <1.645

e) There is not enough evidence to support the professor's claim that the proportion of obese male teenagers decreased.

5 0
3 years ago
Other questions:
  • Twelve more than 3 times a number is no more than the opposite of 11
    14·1 answer
  • Which mathematics property justify the following statement? 3(5x+2)=3×5x+3×2
    13·1 answer
  • Are the two triangles similar or not?​
    15·2 answers
  • PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!!
    8·2 answers
  • In the 1992 presidential election, Alaska's 40 election districts averaged 1898 votes per district for President Clinton. The st
    7·1 answer
  • A box is filled with 3 yellow cards , 4 green cards. A card is chosen at random from the box. What is the probability that the c
    10·2 answers
  • Whats distributive property
    14·1 answer
  • Please help me answer for 35 and 36
    6·1 answer
  • Please please please help me on this i'll give 14 points to whoever answers
    12·1 answer
  • How many numbers are 10 units from 0 on the number line? Type your answer as a numeral.​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!