Sumita is following this recipe to make flapjacks.

MATHS QUESTION Any help for another maths questions I just don't get what to do thank you ❤

levacccp [35]

Look at the picture.

a) 180° - 45° = 135°

b) Use trigonometric function

$\tan(\angle DBA)=\dfrac{45}{30}\\\\\tan(\angle DBA)=1.5\\\\m\angle DBA\approx56^o$

270° - 56° = 214°

4 0

3 years ago

Write th number of permutations in factorial form. then simplify. How many different ways can you and six of your friends sit in

kolbaska11 [484]

The answer is D. The answer is D because when It is simplified 7?49. The answer is the only possible answer could be correct since the rest of their maths don't add up.
C
A 
C 
D 
D 
B 
D 
B 
C

8 0

4 years ago

Solve D=RT for D, if T=5hours and R=65mph

brilliants [131]

D=325. u multilply 5 times 65 and thats the answer u get

4 0

3 years ago

A company that makes hair-care products had 5,000 people try a new shampoo. Of the 5,000 people, 10 had a mild allergic reacti

Margarita [4]

Answer:

0.002%

Step-by-step explanation:

10/5,000 = 0.002

Hope this helps!

4 0

3 years ago

Read 2 more answers

A United Nations report shows the mean family income for Mexican migrants to the United States is $27,000 per year. A FLOC (Farm

disa [49]

Answer:

We conclude that the mean family income for Mexican migrants to the United States is $27,000 per year and the provided information is consistent with the United Nations report.

Step-by-step explanation:

We are given that a United Nations report shows the mean family income for Mexican migrants to the United States is $27,000 per year.

A FLOC evaluation of 25 Mexican family units reveals a mean to be $30,000 with a sample standard deviation of $10,000.

Let $\mu$ = true mean family income for Mexican migrants.

So, Null Hypothesis, $H_0$ : $\mu$ = $27,000 {means that the mean family income for Mexican migrants to the United States is $27,000 per year}

Alternate Hypothesis, $H_A$ : $\mu$ $\neq$ $27,000 {means that the mean family income for Mexican migrants to the United States is different from $27,000 per year}

The test statistics that would be used here One-sample t test statistics as we don't know about the population standard deviation;

T.S. = $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample mean family income = $30,000

s = sample standard deviation = $10,000

n = sample of Mexican family = 25

So, the test statistics = $\frac{30,000-27,000}{\frac{10,000}{\sqrt{25} } }$ ~ $t_2_4$

= 1.50

The value of t test statistics is 1.50.

Since, in the question we are not given the level of significance so we assume it to be 5%. Now, at 5% significance level the t table gives critical values of -2.064 and 2.064 at 24 degree of freedom for two-tailed test.

Since our test statistic lies within the range of critical values of t, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which we fail to reject our null hypothesis.

Therefore, we conclude that the mean family income for Mexican migrants to the United States is $27,000 per year and the provided information is consistent with the United Nations report.

4 0

3 years ago