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nordsb [41]
3 years ago
12

Find the value of x. Show all your work

Mathematics
1 answer:
Burka [1]3 years ago
8 0

Answer:

15

Step-by-step explanation:

Let the left side of the triangle be 2Y for the bigger triangle and then the smaller one will be Y.

Comparing the two triangle

2Y/Y = 30/X

2 = 30/X

Cross multiple

2X = 30

Dividing by 2

X = 30/2

X = 15

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A brother and sister attend the same school, and they walk from home to school using the same route. It takes the brother 24 min
madam [21]

Answer:

No

Step-by-step explanation:

24 - 3 = 21 minutes

21 > 18

5 0
3 years ago
The function f(x) = (x - 4)(x - 2) is shown.
agasfer [191]

Answer:

all real numbers greater than or equal to -1

Step-by-step explanation:

In order to solve this problem we need to know the vertex and the direction its pointing.

First we expand,

x^2-6x+8

To find the x value of the vertex we use this formula (-b/2a).

-(-6)/2(1) = 3

Now we plug 3 in the equation to get the y value,

(3)^2 - 6(3) + 8 = 9 - 18 + 8 = -1

The vertex is (3,-1)

We know the graph points up because x^2 is positive

The vertex is the lowest point, so we now know that -1 is the starting range and if the graph is pointing up, that means all values greater than -1.

This leads to our answer all real numbers greater than or equal to -1.

6 0
3 years ago
7 times the difference of x and 8
Thepotemich [5.8K]

Answer:

7(x - 8)

Step-by-step explanation:

times means multiplication

difference means subtraction

7 times the difference of x and 8 -> 7 * (x - 8) -> 7(x - 8)

Simplify if needed.

7(x - 8)

~Distribute

2x - 56

Best of Luck!

8 0
3 years ago
Im a little confused on this on can someone help me with this thanks!
Arlecino [84]
This is a bit confusing, double check if you typed everything correctly.
6 0
3 years ago
Read 2 more answers
Carol drives her daughter to school at an average rate of 30 miles per hour, but only goes an average rate of 20 miles per hour
Ivahew [28]
<span>24 mph

</span>P.S. please vote this as the brainliest answer :)
6 0
3 years ago
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