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3 years ago

Please help me my moms gonna kill me if I don’t get this done(20 points)

Mathematics

2 answers:

Nutka1998 [239]3 years ago

8 0

Answer:

x=30° y=4

Step-by-step explanation:

$\frac{y}{8} = \frac{2.5}{5}$

cross multiple

5y=8(2.5)

5y=20

divide 5 by 20

and you should y=4

since the polygons are similar x should have the same degrees as the bigger polygon

madreJ [45]3 years ago

6 0

Answer: Y=4

Step-by-step explanation

Since the inside of a triangle is 180 degrees the 30 degrees plus the 90 degree corner minus the total inside degree so the other corner is 60 degrees. the dialation is 62.50 percent or .625 in decimal form which makes the vareable y equals 4 once you divide 2.5 by .625

Your welcome for the help :)

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Hello need help with this one to and thanks and have a great day or weekend and be safe

Mandarinka [93]

Answer:

a) It's a quadratic

b) f(x) = A(x-3)(x-7)

c) she is right

Step-by-step explanation:

(0-12)/(3-1) = -6

(-4-0)/(5-3) = -2

Since the slope is not constant, it can't be a linear.

Therefore a quadratic

Since the zeroes are 3 and 7,

Factors are (x - 3) and (x - 7)

f(x) = A(x - 3)(x - 7)

Use any one point besides the x-intercepts to find A

12 = A(1-3)(1-7)

12 = 12A

A = 1

f(x) = (x - 7)(x - 3)

f(x) = x² - 7x - 3x + 21

f(x) = x² - 10x + 21

She is right

7 0

4 years ago

Read 2 more answers

Solve the equation and find what X is. 9x-7=10

Marysya12 [62]

Answer:

x = 1 8/9 or 17/9

Step-by-step explanation:

Step 1: Add 7 to both sides.

$9x - 7 + 7 = 10 + 7$
$9x = 17$

Step 2: Divide both sides by 9.

$\frac{9x}{9} = \frac{17}{9}$
$x = \frac{17}{9} = 1 \frac{8}{9}$

6 0

3 years ago

Write 7.63 × 10^–6 in an ordinary number.

adelina 88 [10]

Answer:

0.00000763

Step-by-step explanation:

7 accounts for 1 place

6 - 1 = 5, therefore 5 0s after the decimal point

3 0

2 years ago

Read 2 more answers

Javier walks up to a tank of water that can hold up to 10 gallons. When it is active, a drain empties water from the tank at a c

kap26 [50]

Hello, Bellaroyalball, your answer would be,

4 1/2 minutes before Jada arrived

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5 0

2 years ago

1-1 Relations and Functions Marcus drives 32 miles to work each day. He records the number of minutes it takes him to drive and

Korvikt [17]

Answer:

A. [0, 65]

Step-by-step explanation:

Given that

Distance that Marcus drives every day = 32 miles.

The table having average speed as input and time taken as output is shown below in the table format:

$\begin{center}\begin{tabular}{ c c}Speed(mph) & Time(minutes) \\ 60 & 32 \\ 45 & 43 \\ 55 & 35 \\ 50 & 38 \\ 62 & 31 \\\end{tabular}\end{center}$

To find:

The domain that includes all possible average speeds using interval notation = ?

Solution:

First of all, let us understand what is a domain of a function.

Domain of a function is set of valid input values that can be provided to the function so that it has a valid output.

If a function is written as:

$y=f(x)$ then values of $x$ are the input given to the function.

In the given question statement, we are given that maximum Average speed attained by Marcus is 65 miles per hour.

That means domain has a maximum value of 65.

Let us learn something about interval notation.

( or ) means the value is not inclusive.

[ or ] means the value is inclusive.

Here 65 will be inclusive.

On the left side of comma, lower value is written and on the right side of comma, larger value is written.

So, domain for the current situation will be:

[0, 65]

0 is taken as the minimum value of domain here, because average speed value can not be negative.

This interval will contain all the possible values of input (average speed) as shown in the above table of values.

8 0

4 years ago