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Pavlova-9 [17]
4 years ago
10

Find the value of the greater root of x2 + 14x + 45 = 0. A) -9 B) -5 C) 5 D) 9

Mathematics
2 answers:
Ahat [919]4 years ago
5 0

Answer:

-5

Step-by-step explanation:

x2 + 14x + 45 = 0

(x + 5)(x + 9) = 0

x = -5, -9

Ede4ka [16]4 years ago
4 0
X2 + 14x + 45 The answer is C) 5.
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4. The sum of Mr. and Mrs. Bergen's ages is 100. The difference between their ages is 10. How old are Mr. and Mrs. Bergen?​
alex41 [277]

100-10=90

90÷2=45

Mr Bergen's age=45+10

=55 years old

Mrs Bergen's age=45 years old

8 0
3 years ago
HELP ME PLEEEAASSEEE I SUCK AT MATH
irakobra [83]

Answer:

the answer is letter d

5 0
3 years ago
Read 2 more answers
1. If a side started out with a side length of 11 and ended with a side length of 71 what is the dilation's scale factor? Write
jeka57 [31]

Regarding dilation, it is found that:

1. The scale factor is of 6.45

2. The scale factor is of 1.4375.

3. the image will be smaller than the pre-image.

<h3>Dilation</h3>

A dilation is one type of transformation that is applied to images, in which the side lengths are multiplied by a constant called scale factor, changing the side lengths of the image.

In item a, the initial length was of 11 and the final length is of 71, hence the multiplier, which is the scale factor, is given as follows:

71/11 = 6.45.

In item b, the initial length was of 16 and the final length was of 23, hence the scale factor is given as follows:

23/16 = 1.4375.

For item 3, the multiplier is a number that is less than 1, meaning that the image is smaller than the pre-image.

More can be learned about dilation at brainly.com/question/3457976

#SPJ1

6 0
1 year ago
What is the volume of a ball that has a diameter of 9 inches? Round to the nearest whole number
nalin [4]
Ball=sphere
Vsphere=pir^3
d/2=r
d=9
9/2=4.5=r
V=pi4.5^3
V=pi91.125
aprox pi=3.141592
V=286.227
round
V=286 in^3
4 0
3 years ago
David rode 2.5 kilometers on his bike. Jessie rode 2,050 meters on her bike. Who rode farther and by how many meters?
weqwewe [10]
2.5 kilometres is 2500 meters as 1km is 1000m

2500-2050 = 450m

as david is the one that rode 2.5 kilometres he rode further by 450 meters
8 0
3 years ago
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