Ask question

Ask question

All categories

2 years ago

14

Keith drives 5.3 miles east, then 9.2 miles north. How far is he from his starting point

2 answers:

slamgirl [31]2 years ago

5 0

Answer:

in my country and our school we do like byformola =final velocity -intial velocity upon time taken

i will do likw .this 9.2-5.3=3.9 3.9 -total time 3.9÷2=1.95

Step-by-step explanation:

sorry if answer is wrong dont give me some wrong thing but write in comment and i will reply dont do it sorry sorry

ioda2 years ago

3 0

Answer:I’m pretty sure it’s 3.9

Step-by-step explanation:

9.2-5.3=3.9

You might be interested in

Which ordered pair is the solution to the system of equations?

SOVA2 [1]

To find the solution, we use the substitution method.

x+y=-1
<span>x-3y=11
</span>
x+y = -1-y
-y

x = -1-y

Now apply the value of x into the other equation.

x-3y=11
-1-y-3y = 11

Combine like terms

-4y -1 = 11
+1 +1
-4y = 12

-4y = 12
-4y/-4 = 12/-4
y = -3

Now, apply the value of Y to one equation to find x.

y = -3

x -3 = -1
+3 +3

x= 2

Now we have the value for both, x and y.
x = 2
y =-3

Final answer: A. <span>(2, −3)</span>

3 0

3 years ago

Simplify the polynomial expressions by combining like terms and then multiply the resulting binomial expressions to find their p

patriot [66]

(6x-9)(8+5x-5)=(6x-9)(5x+3)=

$=6x\cdot5x-5x\cdot9+6x\cdot3-9\cdot3=\\=30x^2-27x-27$

6 0

3 years ago

Read 2 more answers

List the number in order from least to greatest. |-8|,-8,0,|7|,-7

Reptile [31]

0,-8,-7,7,8 there is that correct??????

5 0

3 years ago

Read 2 more answers

Show the work to divide 8.4 by 0.03

Sveta_85 [38]

Well, 0.03= 3%
So i divided 8.4 by 100 and i got 0.084.
Then I multiplied that by 3 (because 3%) and i got the answer of 0.252

7 0

3 years ago

Read 2 more answers

Consider a drug testing company that provides a test for marijuana usage. Among 310 tested subjects, results from 28 subjects w

Naily [24]

Answer:

$z=\frac{0.0903 -0.1}{\sqrt{\frac{0.1(1-0.1)}{310}}}=-0.569$

The p value for this case can be calculated with this probability:

$p_v =P(z$

Since the p value is higher than significance level we don't have enough evidence to conclude that the true proportion is significantly less than 0.1

Step-by-step explanation:

Information given

n=310 represent th sample selected

X=28 represent the subjects wrong

$\hat p=\frac{28}{310}=0.0903$ estimated proportion of subjects wrong

$p_o=0.1$ is the value to verify

$\alpha=0.05$ represent the significance level

t would represent the statistic

$p_v$ represent the p value

System of hypothesis

We want to test the claim that less than 10 percent of the test results are wrong ,and the hypothesis are:

Null hypothesis: $p\geq 0.1$

Alternative hypothesis: $p < 0.1$

The statistic is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

Replacing the info we got:

$z=\frac{0.0903 -0.1}{\sqrt{\frac{0.1(1-0.1)}{310}}}=-0.569$

The p value for this case can be calculated with this probability:

$p_v =P(z$

Since the p value is higher than significance level we don't have enough evidence to conclude that the true proportion is significantly less than 0.1

5 0

3 years ago