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3 years ago

Can someone help me ??

Mathematics

1 answer:

FinnZ [79.3K]3 years ago

6 0

Answer:

answer is: 11/10

Step-by-step explanation:

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Please help.Please show the formula,thanks.

Yuki888 [10]

Answer:

DE=6.3

Step-by-step explanation:

triangles are similar so, its sides and angles are comgruent.

side BC=side DE

side BC=6.3

side DE=6.3

<h3>Note:if you need to ask any question please let me know.</h3>

5 0

3 years ago

Solving systems of equations algebraically.

Elanso [62]

Answer:

x = 2

y = -1

Step-by-step explanation:

Since it gives you the value of y already, just plug that into the equation, like so:

y = 4x - 9

x - 3 = 4x - 9

Subtract the x from both sides:

x - 3 = 4x - 9

-x - x

__________

-3 = 3x - 9

Then, add 9 to both sides:

-3 = 3x - 9

+9 + 9

________

6 = 3x

Divide both sides by 3:

2 = x

Now plug in x for y:

y = x - 3

y = 2 - 3

y = -1

8 0

3 years ago

What is the equation of a line that is parallel to the line 4x-2y=10 and goes through the point (3,12)

Elina [12.6K]

Answer:

4x - 2y = -12

Step-by-step explanation:

4(3) - 2(12) = b

12 - 24 = b

-12 = b

4x-2y = -12

4 0

3 years ago

Determine whether the sequence below is a geometric sequence and, if so, find a formula that describes the sequence. 2, 4, 8, 16

Finger [1]

NOT geometric sequence. The NEGATIVE 32 breaks any initial ratio which occurs between the first four terms.

7 0

4 years ago

PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA POINTS*.. IM GIVING 40 POINTS !! DONT SKIP :((.

Anna71 [15]

Answer:

m = 1/3

b = -6

Step-by-step explanation:

How to calculate slide (m):

$\frac{y_{1} - y_{2} }{x_{1} - x_{2} } = m$

x1 = 0

x2 = -12

y1 = -6

y2 = -10

If we put in the values:

$\frac{(-6) - (-10)}{0 - (-12)} = m$

Subtracting a negative number is the same as adding it:

$\frac{(-6) + 10 }{0 + 12} = m$

-6 + 10 = 4 and 0 + 12 = 12 so now we have this:

$\frac{4}{12} = m$

Lets simplify:

4 and 12 can both be divided by 3:

$\frac{1}{3} = m$

3 and 1 are prime numbers and cannot be simplified further.

Now we know that m=1/3

Since:

y = mx + b

y = -6

x = 0

m = 1/3

Then:

-6 = 1/3*0 + b

1/3*0 is 0, so we can just remove that part:

-6 = b

that means b is equal to -6

Hope i was able to help!

If you have any questions, just ask them in the comments below!

Have a good day! (●'◡'●)

8 0

3 years ago