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eimsori [14]
3 years ago
14

Help me with this please and thank you​

Mathematics
1 answer:
Viktor [21]3 years ago
3 0

Answer:

a. 2x +5

b. Pic attached

c. f(4) = 2•4 +5

f(4) = 8 +5

f(4) = 13

d. Domain: all the real numbers

Range: all the real numbers

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Between which two square roots of integers could you find 3.14
Drupady [299]
It is between 2 and 3
4 0
4 years ago
A research center is interested in investigating the height and age of children who are between 5 to 9 years old. In order to do
ehidna [41]

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

Age(x)

7

8

5

8

8

7

7

7

9

8

5

8

6

5

8

Height (Y)

47.3

48.8

41.3

50.4

51

47.1

46.9

48

51.2

51.2

40.3

48.9

45.2

41.9

49.6

The estimated regression equation:

ŷ = 2.73953X + 27.91395

Where ;

X = independent variable

ŷ = predicted or dependent variable

27.91395 = intercept

C.) To obtain the variation in sample values of height estimated by the model, we obtain the Coefficient of correlation:

Using the online pearson correlation Coefficient calculator :

The correlation Coefficient is 0.9696.

which means that the regression model estimated in part (b) explains approximately (0.9696 * 100) = 96.96% = 97% of the variation in the height in the sample.

3 0
4 years ago
What is −0.8888888889 in fraction
Law Incorporation [45]
8888888889/10000000000
3 0
4 years ago
Read 2 more answers
Sara is flying a kite at the park. The angle of elevation from Sara to kite in the sky is 53° and the length of the string is 32
AfilCa [17]

Answer:

Using sine ratio:

\sin \theta = \frac{\text{Opposite side}}{\text{Hypotenusesside}}

As per the statement:

The angle of elevation from Sara to kite in the sky is 53° and the length of the string is 32 feet. and Sara is 5 feet tall.

⇒Angle of elevation( \theta) = 53° and

Hypotenuse side = 32 feet (As you can see the figure as shown below)

then;

Apply the sine ratio in triangle ACE we have;

\sin 53^{\circ} = \frac{CE}{32}

0.79863551004 = \frac{CE}{32}

Multiply both sides by 32 we get;

0.79863551004 \cdot 32 = CE

Simplify:

CE = 25.5563363215 feet.

Then:

DE = CD+CE = 5 + 25.5563363215 = 30.5563363215 ≈30.6 feet.

Therefore,  30.6 feet far off the ground is the kite.


7 0
3 years ago
Read 2 more answers
(5pts) Please help!!!!
stich3 [128]

Answer:

(-5,5)

Step-by-step explanation:

It went right one and up four, so it has to do that again.

(-5,5)

4 0
3 years ago
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