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sweet-ann [11.9K]
3 years ago
7

Solve this quadratic equation using the quadratic formula. 5 - 10x - 3x2 = 0

Mathematics
1 answer:
mario62 [17]3 years ago
5 0

Answer:

Step-by-step explanation:

I have enclosed a picture of the quadratic formula because I cannot seem to write the proper formula since it wont let me

✯Hello✯

↪  Alright so first we need to work out values for A B AND C

↪  We need to rearrange this since its the wrong way around

↪  A = -3

B= -10

C= 5

↪  we substitute these values and we get x=0.44 and x=-3.78

❤Gianna❤

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In rectangle ABCD, AB = 10 cm and BC = 14 cm. If rectangle EFGH is the image after a dilation, which could be its side lengths?
lana [24]

Answer is D

After dilation the image remain same but it is stretched or shrinked to the original size.

That means the ratio of the sides and the angles between the sides remain same .

Here we did dilation of ABCD which made it to EFGH.

Hence the ratio of the corresponding sides of the original rectangle ABCD should remain same even after dilation.

the corresponding sides are : AB and EF

BC and FG

CD and GH

DA and HE

* Let us find ratio of the sides AB and BC

given that AB= 10 and BC= 14

AB/BC= 10/14 = 5 /7 ( 10 and 14 both are multiple of 2 so we reduced them by a factor of 2 )

* the raio of the corresponding sides EF and FG should be same ( 5/7)

in the option D EF= 25 and FG= 35

so EF/FG= 25/35 = 5 /7 ( both are multiple of 5 so we reduced them by the factor of 5 )

Since ratio of the corresponding sides are coming out to be same for the EFGH given in option D it should be the dilation of the ABCD

4 0
2 years ago
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Kay [80]

The answer would be A) $79.20

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8 0
3 years ago
15z-7=14z+12 What does Z equal​
Anika [276]

Answer:

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Step-by-step explanation:

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8 0
3 years ago
ms. eskew's class had a class average of 77 % on their math test. how would this be written as a ratio? a. 23:100 b. 77:100 c. 5
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3 0
3 years ago
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ICE Princess25 [194]

Solution:

The probability of an event is expressed as

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Thus, we have the probability to be evaluated as

P(ace)=\frac{1}{13}

8 0
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