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
Darya [45]
3 years ago
6

Find the value of x 140° 80° 5 X°​

Mathematics
1 answer:
evablogger [386]3 years ago
3 0
2.44346x is 140 80 is 1.39626 5x is is an incomplete math problem
You might be interested in
Given that a function, h, has a domain of -3 ≤ x ≤ 11 and a range of 1 ≤ h(x) ≤ 25 and that h(8) = 19 and h(-2) = 2, select the
morpeh [17]

Answer:

Option D. h(2) = 16

Step-by-step explanation:

Verify each statement

case A) h(8) = 21

The statement is false

Because

we know that

h(8)=19 -----> given value

and

If h(8) = 21  then f(x) is not a function

case B) h(13) = 18

The statement is false

Because x=13 not belong to the domain of the function

case C) h(-3) = -1

The statement is false

Because

x=-3 belong to the domain

but

h(-3)=-1   not belong to the range of the function

case D) h(2) = 16

The statement could be true

Because

x=2 ----> belong to the domain of the function

h(2)=16 ----> belong to the range of the function

5 0
3 years ago
How do you solve the equation 3x = 9 by multiplying 3 to both sides
notka56 [123]
Whenever you see <em>x </em> next to a 3, and it says that it equals 9, you know that 3•3=9.
5 0
3 years ago
Read 2 more answers
A dataset lists full IQ scores for a random sample of subjects with low lead levels in their blood (sample 1) and another random
Alenkasestr [34]

Answer:

a. Null hypothesis: \mu_1 \leq \mu_2

Alternative hypothesis: \mu_1 >\mu_2

b. t=\frac{(92.88 -86.90)-(0)}{\sqrt{\frac{15.34^2}{78}}+\frac{8.99^2}{21}}=2.282

c. p_v =P(t_{97}>2.287) =0.0122

So with the p value obtained and using the significance level given \alpha=0.05 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the mean of the group 1 (Low Blood Lead level) is significantly higher than the mean for the group 2 (High Blood Lead level).  

Step-by-step explanation:

a. State and label the null and alternative hypotheses.

The system of hypothesis on this case are:

Null hypothesis: \mu_1 \leq \mu_2

Alternative hypothesis: \mu_1 >\mu_2

Or equivalently:

Null hypothesis: \mu_1 - \mu_2 \leq 0

Alternative hypothesis: \mu_1 -\mu_2>0

Our notation on this case :

n_1 =78 represent the sample size for group 1

n_2 =21 represent the sample size for group 2

\bar X_1 =92.88 represent the sample mean for the group 1

\bar X_2 =86.90 represent the sample mean for the group 2

s_1=15.34 represent the sample standard deviation for group 1

s_2=8.99 represent the sample standard deviation for group 2

b. State the value of the test statistic.

And the statistic is given by this formula:

t=\frac{(\bar X_1 -\bar X_2)-(\mu_{1}-\mu_2)}{\sqrt{\frac{s^2_1}{n_1}}+\frac{s^2_2}{n_2}}

Where t follows a t distribution with n_1+n_2 -2 degrees of freedom. If we replace the values given we have:

t=\frac{(92.88 -86.90)-(0)}{\sqrt{\frac{15.34^2}{78}}+\frac{8.99^2}{21}}=2.282

Now we can calculate the degrees of freedom given by:

df=78+21-2=97

c. Find either the critical value(s) and draw a picture of the critical region(s) or find the P-value for this test. Indicate which method you are using: ( CIRCLE ONE: Critical value / P-value )

Method used: P value

And now we can calculate the p value using the altenative hypothesis, since it's a right tail test the p value is given by:

p_v =P(t_{97}>2.287) =0.0122

So with the p value obtained and using the significance level given \alpha=0.05 we have p_v so we can conclude that we have enough evidence to reject the null hypothesis, and we can said that at 5% of significance the mean of the group 1 (Low Blood Lead level) is significantly higher than the mean for the group 2 (High Blood Lead level).  

6 0
3 years ago
Five more than a half number is 6. find the number.
Artyom0805 [142]
First write the equation:
1/2x + 5 = 6

Then subtract five from both sides:

1/2x = 1

Multiply both sides by 2:

x = 2
7 0
2 years ago
Read 2 more answers
Which statements are true of the graph of h(x) = ^3 square root of x-4 ? Check all that apply.
kolezko [41]

Answer:

A,B,E

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP ME!!! I NEED THIS REALLY SOON OR I WILL FAIL! What are some measurements that might be easier if we worked in the me
    13·1 answer
  • Each of the triangular faces has an area of 32 m2
    15·2 answers
  • Laura found an old deck of cards in her drawer which had only eight face cards: king of hearts (H), king of spades (S), king of
    12·1 answer
  • A(1, 3), B(5, 3), and D(1, -2) are three vertices of rectangle ABCD.
    13·2 answers
  • You have two rectangular prisms (Prism A and Prism B). Prism A has the following dimensions: length x, width y, and height z. Pr
    12·1 answer
  • Ion (6.2 x 1017) + (1.2 x 1015)<br> (4 x 10-6)
    14·1 answer
  • What is the length of the diagonal of rectangle abcd ?
    13·1 answer
  • Use a formula to calculate the amount of money you would have if you invest $3000 at a rate of 5% compounded quarterly, for 3 ye
    13·1 answer
  • EASY POINTS, PLEASE ANSWER ASAP, WILL MARK BRAINLIEST
    7·1 answer
  • Find all outliers for the data.20, 16, 8, 12, 6, 31, 15, 14
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!