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Sunny_sXe [5.5K]
3 years ago
7

Help please please please please​

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
4 0

Answer:

a.) it is a function

b.) domain in interval notation is . (1,10)

Step-by-step explanation:

Marizza181 [45]3 years ago
3 0
It should be it’s a function I remember doing this and I picked a function sorry if you get it wrong but it shouldn’t
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Find the slope of a line that passes through the following points (3,2) (5,-3)
Anarel [89]

Answer:

C

Step-by-step explanation:

Use the slope formula:

m = (y2 - y1) / (x2 - x1)

m = (-3 - 2) / (5 - 3)

m = -5/2

7 0
3 years ago
What is the standard deviation of the data set? 1, 4, 2, 2, 8, 7, 3 Round your answer to the nearest tenth.
natima [27]

Standard deviation is a measurement of a collection of values' variance or dispersion. The standard deviation of the data set is 2.474.

<h3>How to calculate the standard deviation of a data set?</h3>

Step 1: Find the mean

Step 2: Find each score’s deviation from the mean

Step 3: Square each deviation from the mean

Step 4: Find the sum of squares

Step 5: Apply the formula

SD = \sqrt{\dfrac{\sum(x_i-\bar{x})^2}{n}}

The data set that is given to us is {1, 4, 2, 2, 8, 7, 3}, now use the steps to calculate the standard deviation.

Step 1: Find the mean

The mean of the given data set can be written as,

Mean, \mu=\dfrac{1+4+2+2+8+7+3}{7} = 3.857

Step 2: Find each score’s deviation from the mean

1 - 3.857 = -2.857

4 - 3.857 = 0.143

2 - 3.857= -1.857

2 - 3.857= -1.857

8 - 3.857 = 4.143

7 - 3.857 = 3.143

3 - 3.857 = -0.857

Step 3: Square each deviation from the mean

-2.857² = 8.162

0.143² = 0.02

-1.857² = 3.447

-1.857² = 3.447

4.143² = 17.165

3.143² = 9.877

-0.857²= 0.735

Step 4: Find the sum of squares

8.162+0.20+3.447+3.447+17.165+9.877+0.735 = 42.857

Step 5: Apply the formula

SD = \sqrt{\dfrac{\sum(x_i-\bar{x})^2}{n}}\\\\SD = \sqrt{\dfrac{42.857}{7}} \\\\SD= 2.474

Hence, the standard deviation of the data set is 2.474.

Learn more about Standard Deviation:

brainly.com/question/12402189

4 0
2 years ago
. Jessica went to the grocery store and purchased a box of cereal for $3.75, milk for $1.50, and bread for $2.25. She paid with
puteri [66]
$3.75 - cereal
$1.50 - milk
$2.25 - bread
—————————
$7.50

$20.00
- 7.50
—————
$ 12.50


She received $12.50 back
4 0
3 years ago
Help pleaseeee thank you
fenix001 [56]

Answer:

Can't read the picture. Please take a bigger picture of the triangle.

8 0
3 years ago
14. Two parallel lines l and m are intersected by a transversal t. If the interior angles on same side of transversal are (2x−8)
nlexa [21]

Answer:

70° and 110°

Step-by-step explanation:

It is given that, two parallel lines l and m are intersected by a transversal t.

The interior angles on same side of transversal are (2x−8)° and (3x−7)°.

We need to find the measure of these angles.

We know that, the sum of interior angles of the same side of the  transversal is equal to 180°. So,

(2x−8)° + (3x−7)° = 180°

⇒ 5x-15=180°

⇒5x=180°+15

⇒5x=195

⇒x=39

Put x = 39 in (2x−8)°,

(2x−8)° = (2(39)-8)°

=70°

Again put x = 39 in (3x−7)°,

(3x−7)° = (3(39)-7)°

=110°

So, the measure of these angles are 70° and 110°.

8 0
3 years ago
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