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
never [62]
3 years ago
12

I put in 6.32 for A but it’s still saying it’s wrong and I need the √ , I only need to answer this right to pass my summer schoo

l class someone please help me !

Mathematics
1 answer:
Ray Of Light [21]3 years ago
3 0

Answer:

Value of blank 1 is 2

Value of blank 2 is 10

Step-by-step explanation:

We are given that a and b are the lengths of legs of right angle in right angled triangle .

b = 3

We are also given that c is the hypotenuse

c = hypotenuse = 7

To find the value of 'a' we will use Pythagoras theorem

Hypotenuse^2 = perpendicular^2 +base^2\\c^2=a^2+b^2\\7^2=a^2+3^2\\7^2-3^2=a^2\\\sqrt{7^2-3^2}=a\\\sqrt{40}=a\\2\sqrt{10}=a\\

Value of blank 1 is 2

Value of blank 2 is 10

You might be interested in
-5x-6(-6+3x)=105 what is the answer
lyudmila [28]

Answer:

x = -3

Step-by-step explanation:

expand -23x + 36 = 105

subtract 36 from both sides -23x +36 -36 = 105 - 36

Simplify -23x = 69

Divid both sides by -23: -23x / - 23 = 69 / -23

x = -3

3 0
3 years ago
Are the linear equations in standard form? sort each equation into the appropriate category.
Sholpan [36]
What equation? You would have to pass a photo, but...
Standard form is: ax+by=c
Slope intercept form is: y=my+b
Point slope for is: y − y1 = m(x − x1)
4 0
3 years ago
What is the solution to the system of equations? Use the substitution method.
ludmilkaskok [199]
The answer is A. (3,-1/2)
3 0
3 years ago
Let the abbreviation PSLT stand for the percent of the gross family income that goes into paying state and local taxes. Suppose
gavmur [86]

Answer:

Number of families that should be surveyed if one wants to be 90% sure of being able to estimate the true mean PSLT within 0.5 is at least 43.

Step-by-step explanation:

We are given that one wants to estimate the mean PSLT for the population of all families in New York City with gross incomes in the range $35.000 to $40.000.

If sigma equals 2.0, we have to find that how many families should be surveyed if one wants to be 90% sure of being able to estimate the true mean PSLT within 0.5.

Here, we will use the concept of Margin of error as the statement "true mean PSLT within 0.5" represents the margin of error we want.

<u></u>

<u>SO, Margin of error formula is given by;</u>

       Margin of error =  Z_(_\frac{\alpha}{2}_ ) \times \frac{\sigma}{\sqrt{n} }

where, \alpha = significance level = 10%

            \sigma = standard deviation = 2.0

            n = number of families

Now, in the z table the critical value of x at 5% ( \frac{0.10}{2} = 0.05 ) level of significance is 1.645.

SO,        Margin of error =  Z_(_\frac{\alpha}{2}_ ) \times \frac{\sigma}{\sqrt{n} }

                          0.5   =  1.645 \times \frac{2}{\sqrt{n} }

                         \sqrt{n} =\frac{2\times 1.645 }{0.5}

                         \sqrt{n} =6.58

                           n  =  6.58^{2}

                               = 43.3 ≈ 43

Therefore, number of families that should be surveyed if one wants to be 90% sure of being able to estimate the true mean PSLT within 0.5 is at least 43.

4 0
3 years ago
Help ASAP!!!!!!!!!!!!!!!
Advocard [28]
Answers D. and E. are correct.
I think that B might also be correct, I hope This helps.
7 0
3 years ago
Other questions:
  • Examples of when you will use box and whisker plots in the real world
    11·1 answer
  • What is 2/4 +(-8/4) i'm a little stuck
    15·2 answers
  • Find the equation of the linear function passing through (2,3) and (5,12)
    8·1 answer
  • What is 8/40 in simplest form?
    8·2 answers
  • Order the values from least to greatest -1,|5|,|4|,8,|-1|​
    7·2 answers
  • Here is a circle, centre O, and the tangent to the circle at the point (8,15)
    13·2 answers
  • Asking for a friend. Someone, please help out. Will give 15 points for it and brainliest when possible.
    7·1 answer
  • Write algebraically:seven times the sum of a number and three is at most 23??<br>​
    6·1 answer
  • What is 45 to the 3rd power?
    8·2 answers
  • What is the slope of -2,-5 and 18,-5
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!