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bixtya [17]
3 years ago
15

Solve. 10x^2 - 6 = 9x

Mathematics
1 answer:
grin007 [14]3 years ago
7 0

Answer:

B

Step-by-step explanation:

use quadratic formula:  (-b ±√b²-4ac) ÷ 2a

a = 10,  b = -9,  c = -6

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(9\times100)+(8\times10)+\left (7\times\dfrac{1}{1000} \right )(9×100)+(8×10)+(7×
Tanya [424]

Answer:

7,980

Step-by-step explanation:

900 + 80 + (7 x 1000)

3 0
3 years ago
christen has to run around the rectangle soccer field during practice. The soccer field measures 60 meters long by 45 meters wid
Elena L [17]

Answer:

210 m

Step-by-step explanation:

Perimeter is the distance around the outside of a two-dimensional shape.

Area is the space inside of a two-dimensional shape. We can also think of area as the amount of space a shape covers.

Christen ran around the soccer field, so she ran around the perimeter.

We can find the perimeter by adding all of the side lengths.

Perimeter=60 m+45 m+60 m+45 m

Christen ran 210m.

7 0
3 years ago
A tree casts a shadow of 28 feet. at the same time, a biologist who is 7 feet tall casts a shadow of 2 feet.
lilavasa [31]
Ratio of shadow to object's size = 2/7

Then, size of tree would be: 7/2 * 28 = 7 * 14 = 98 feet

So, your final answer is 98 feet

Hope this helps!
7 0
3 years ago
Jill grew 40 flowers with 4 seed packets. With 5 seed packets, how many total flowers can Jill have in her garden? Solve using u
ad-work [718]
The answer is 50
The answer is 50 because it told you that he had 40 seeds with 4 packets and if you add another packet it makes 50 because each packet had 10 in it
4 0
3 years ago
Please help i don't understand these at all
Andrei [34K]

I think its going to be -1/2

5 0
3 years ago
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