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
Ksju [112]
2 years ago
7

Find the value of x, round to the nearest 10thI will give brainliest

Mathematics
1 answer:
Fudgin [204]2 years ago
7 0
ACB + BAC =90
ACB + 37 = 90
ACB = 53
Tan (53) = 10/x
X= 7.536
(Hope this helped have a great day)
You might be interested in
please help me with this :( I did the first one and I’m confused on the others I’ll mark u brainliest
Lena [83]

Answer:

second one:  -4x +6

third one: 4x - 16

fourth:   245x + 30

fifth: 81x - 21x

(last one) sixth: 1600x + 8x

( if this goes wrong then I did  something else)

3 0
3 years ago
A survey asks 48 randomly chosen students if they plan to buy a school newspaper this week. Of the 48 surveyed,32 plant to buy a
spayn [35]
The answer is 540 because 32/48 is 2/3 and 360/540 equals 2/3
4 0
3 years ago
Negative 33 divided 11 as a fraction
Elodia [21]
-33 / 11 = ?

-33/11 

Simplify 

-3/1 would be the answer
6 0
3 years ago
Read 2 more answers
It is desired to compare the hourly rate of an entry-level job in two fast-food chains. Eight locations for each chain are rando
notka56 [123]

Answer:

It can be concluded that at 5% significance level that there is no difference in the amount paid by chain A and chain B for the job under consideration

Step by Step Solution:

The given data are;

Chain A 4.25, 4.75, 3.80, 4.50, 3.90, 5.00, 4.00, 3.80

Chain B 4.60, 4.65, 3.85, 4.00, 4.80, 4.00, 4.50, 3.65

Using the functions of Microsoft Excel, we get;

The mean hourly rate for fast-food Chain A, \overline x_1 = 4.25

The standard deviation hourly rate for fast-food Chain A, s₁ = 0.457478

The mean hourly rate for fast-food Chain B, \overline x_2 = 4.25625

The standard deviation hourly rate for fast-food Chain B, s₂ = 0.429649

The significance level, α = 5%

The null hypothesis, H₀:  \overline x_1 = \overline x_2

The alternative hypothesis, Hₐ:  \overline x_1 ≠ \overline x_2

The pooled variance, S_p^2, is given as follows;

S_p^2 = \dfrac{s_1^2 \cdot (n_1 - 1) + s_2^2\cdot (n_2-1)}{(n_1 - 1)+ (n_2 -1)}

Therefore, we have;

S_p^2 = \dfrac{0.457478^2 \cdot (8 - 1) + 0.429649^2\cdot (8-1)}{(8 - 1)+ (8 -1)} \approx 0.19682

The test statistic is given as follows;

t=\dfrac{(\bar{x}_{1}-\bar{x}_{2})}{\sqrt{S_{p}^{2} \cdot \left(\dfrac{1 }{n_{1}}+\dfrac{1}{n_{2}}\right)}}

Therefore, we have;

t=\dfrac{(4.25-4.25625)}{\sqrt{0.19682 \times \left(\dfrac{1 }{8}+\dfrac{1}{8}\right)}} \approx -0.028176

The degrees of freedom, df = n₁ + n₂ - 2 = 8 + 8 - 2 = 14

At 5% significance level, the critical t = 2.145

Therefore, given that the absolute value of the test statistic is less than the critical 't', we fail to reject the null hypothesis and it can be concluded that at 5% significance level that chain A pays the same as chain B for the job under consideration

3 0
2 years ago
the volumes of two spheres are 729 in3 and 27 in3. what is the ratio of their radii, rounded to the nearest whole number?
MaRussiya [10]
The volumes of spheres are proportional to R³. So their 'R's
are proportional to ∛their volumes.

(729/ 27) = 27

∛27 = <u>exactly 3</u> .  No rounding required.
5 0
3 years ago
Other questions:
  • The architect considers many aspects when he designs a house. If one had to name just one aspect that would sum up all these con
    8·2 answers
  • How do I solve this equation <br> 2.4c-2=0.4(1+6c)<br> I end up with -2= 0.4
    14·1 answer
  • Sin 75 degrees. Round answer to four decimal places.
    7·1 answer
  • If ∆JKL ≅ ∆PQR, which one of these is not a pair of corresponding parts? ​∠J and ∠P​ and ​∠L and ∠R​ and
    8·1 answer
  • Combine like radicals to get your answer. <br><br> image attached
    9·1 answer
  • 25 fewer than twice a number?
    15·2 answers
  • Mai bought gas for her car. Gas cost $2.95 per gallon Mai bought 8.2 gallons What was the total cost for Mai's gas?
    5·1 answer
  • A rectangle has a height of 3p^2+13p
    15·1 answer
  • What is 90900909909090909099009099090 +242424242424-6566556637
    5·1 answer
  • PLS HELP<br> Identify the range and domain of the function y=ln(x6).
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!