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
Alla [95]
2 years ago
15

Find the value of x.

Mathematics
1 answer:
stiv31 [10]2 years ago
3 0

Answer:

9 is the value of x.

You might be interested in
một xe ô tô chuyến trước chở được 3 tấn muối chuyến sau chở nhiều hơn chuyến trước 3 tạ hỏi cả hai chuyến xe đó chở được bao nhi
allochka39001 [22]

Answer:

?????

Step-by-step explanation:

4 0
2 years ago
What is the length of line segment PQ? If you can please explain, thanks.
nydimaria [60]

Given:

Tangent segment MN = 6

External segment NQ = 4

Secant segment NP =x + 4

To find:

The length of line segment PQ.

Solution:

Property of tangent and secant segment:

If a secant and a tangent intersect outside a circle, then the product of the secant segment and external segment is equal to the product of the tangent segment.

\Rightarrow NQ\times NP = MN^2

\Rightarrow 4\times (x+4) = 6^2

\Rightarrow 4x+16 = 36

Subtract 16 from both sides.

\Rightarrow 4x+16-16 = 36-16

\Rightarrow 4x =20

Divide by 4 on both sides.

$\Rightarrow\frac{4x}{4}=\frac{20}{4}

\Rightarrow x = 5

The length of line segment PQ is 5 units.

5 0
3 years ago
Read 2 more answers
Solve quickly please.
lys-0071 [83]

Find the change between the first two sets:

12-9 = 3

14.4 - 10.8 = 3.6

3.6/3 = 1.2

Now find the change between the last two sets:

12 - -3 = 15

14.4 - 3.6 = 10.8

10.8/15 = 0.72

1.2 does not equal 0.72 so the answer is No

4 0
3 years ago
− x^2+10=6 can anyone explain me how to do this please ?
Zanzabum

Step-by-step explanation:

Step 1: -x^2 is -1 because x is always 1.

Now that you found your first step take -1x+10=6. You're going to subtract 10 from both sides which leaves you with a sum of -4. So -1x= -4 now divide -4/-1x which gives you a positive number.

5 0
3 years ago
Read 2 more answers
Suppose that Arturo and Bella take an exam for which the mean score is 70 and standard deviation of scores is 8. Arturo’s score
Sever21 [200]

Answer:

Bella's score on the exam is 87.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 70, \sigma = 8

Arturo's score on the exam is 75

His score is Z standard deviations above the mean

Z = \frac{X - \mu}{\sigma}

Z = \frac{75 - 70}{8}

Z = 0.625

Bella’s score is 1.5 standard deviations above Arturo’s score.

So Bella's z-score is 1.5 + 0.625 = 2.125.

Her score is the value of X when Z = 2.125. So:

Z = \frac{X - \mu}{\sigma}

2.125 = \frac{X - 70}{8}

X - 70 = 8*2.125

X = 87

Bella's score on the exam is 87.

6 0
3 years ago
Other questions:
  • Can somebody please help me with my math I need help ASAP
    7·1 answer
  • Jerry wants to buy a hockey jersey the cost of the Jersey is normally $75, but it is now on sale 20% off.
    6·1 answer
  • $900 for 9 months than for six months
    15·1 answer
  • There is a special sale at the movie theater: tickets are $5.00 each. A family spends a total of $30.00 for tickets.Write and So
    11·1 answer
  • 1 Which relation is not a function?
    11·2 answers
  • Use the general solution to solve 5 - 6x = 8x + 17
    11·2 answers
  • Ashely’s group was responsible for painting windows on the set of a school play. the group painted at this rate, how many window
    8·1 answer
  • How do I choose a method to find the product
    9·1 answer
  • 17.
    12·1 answer
  • Find the area of this semi-circle with radius,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!