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Gnom [1K]
3 years ago
9

I need help pleaseee

Mathematics
1 answer:
wolverine [178]3 years ago
5 0

Answer:

x = 6.25

Step-by-step explanation:

Since the quadralterials are similar and the perimeter has a ratio of 12:5 the sides also have a ratio of 12:5.

Set up the proportion.

\frac{12}{5}  =  \frac{15}{x}

12x = 75

x = 6.25

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Refer to the image i couldnt copy it so the image is the quesstion<br><br> answer in true or false
Irina18 [472]

The sign of "b" on the numerator should be negative. So we conclude that the correct option is false.

<h3>Is the equation in the image correct or incorrect?</h3>

For a quadratic equation of the form:

y = a*x^2 + b*x + c

By using the Bhaskara's formula, the solutions of the equation:

0 = a*x^2 + b*x + c

Are given by the formula:

x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a}

Notice that the sign of the first term on the numerator should be negative, while on the image it is positive.

So the equation shown in the image is incorrect.

If you want to learn more about quadratic equations:

brainly.com/question/1214333

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6 0
2 years ago
Write the frost ten terms of a sequence whose first term is -10 and whose common difference is -2​
Temka [501]

Answer:

-10,-12,-14,-16,-18,-20,-22,-24,-26,-28,...

Step-by-step explanation:

we know that

In an <u><em>Arithmetic Sequence</em></u> the difference between one term and the next is a constant, called the common difference

The formula for an Arithmetic Sequence is equal to

a_n=a_1+(n-1)d

where

d is the common difference

n is the number of terms

a_1 is the first term of the sequence

In this problem we have

a_1=-10\\d=-2

substitute

a_n=-10+(n-1)(-2)

a_n=-10-2n+2

a_n=-2n-8

so

<u><em>Find the first ten terms</em></u>

a_1=-10

For n=2 ----> a_2=-2(2)-8=-12

For n=3 ----> a_3=-2(3)-8=-14

For n=4 ----> a_4=-2(4)-8=-16

For n=5 ----> a_5=-2(5)-8=-18

For n=6 ----> a_6=-2(6)-8=-20

For n=7 ----> a_7=-2(7)-8=-22

For n=8 ----> a_8=-2(8)-8=-24

For n=9 ----> a_9=-2(9)-8=-26

For n=10 ----> a_1_0=-2(10)-8=-28

The sequence is

-10,-12,-14,-16,-18,-20,-22,-24,-26,-28,...

5 0
3 years ago
7. Craig rents cars. He earns $75.00 per day plus
motikmotik
C for fork riel eked for me to eat my food lol
3 0
3 years ago
How could you use coordinate geometry to prove that BC AD?
leva [86]

Answer:

3) Prove the lengths are the same.

Step-by-step explanation:

Congruent is a measure of the lengths of the sides not the slopes.

4 0
3 years ago
Karen purchased a DVD player on sale. The original selling price was ​$171.50. The sale price was ​$145.22. What is the first st
Kaylis [27]

Answer:

15% off

Step-by-step explanation:

5 0
3 years ago
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