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2 years ago

Can you help me plzz due in a lil bit

Mathematics

1 answer:

Andre45 [30]2 years ago

4 0

Answer:

Step-by-step explanation:

4 ----- 2/3

15 ----- ????

multiply 15 by 2/3 and divide the result by 4 and you will get the answer.

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enyata [817]

Answer:

(E) 90°

Step-by-step explanation:

The diagonals of a parallelogram are equal in length if and only if the parallelogram is a rectangle.

Any angle of a rectangle is 90°.

_____

Adjacent angles of a parallelogram are supplementary. If the diagonals are the same length, the triangles formed by either diagonal are congruent with the triangles formed by the other diagonal. This means adjacent angles are congruent. Congruent supplementary angles are 90°.

7 0

2 years ago

What are the excluded values of x for

ss7ja [257]

Answer:

x = - 2, x = 9

Step-by-step explanation:

Given

f(x) = $\frac{x^2-9x}{x^2-7x-18}$

The denominator of f(x) cannot be zero as this would make f(x) undefined.

Equating the denominator to zero and solving gives the values that x cannot be.

x² - 7x - 18 = 0

(x - 9)(x + 2) = 0

Equate each factor to zero and solve for x

x + 2 = 0 ⇒ x = - 2

x - 9 = 0 ⇒ x = 9

The excluded values are x = - 2, x = 9

3 0

2 years ago

I'll mark brainliest and thank profile, just need help.

RideAnS [48]

Answer:

The equation of the regression line for the following data is:

y=2.4x+120.1

Step-by-step explanation:

We are given a set of data values in table form as:

Day(x) Number of visitors(y)

1 120

2 124

3 130

4 131

5 135

6 132

7 135

Hence, when we draw a scatter plot with the help of these data points using the linear regression calculator we see that the regression line is a line with y-intercept as (0,120.1) and x-intercept as (-50.04,0)

Hence, the regression line for the following data is:

y=2.4x+120.1