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Reika [66]
2 years ago
14

Whats 9+10= help will give brainlist

Mathematics
2 answers:
Amanda [17]2 years ago
3 0

Answer:

19

Step-by-step explanation:

Arisa [49]2 years ago
3 0

Answer: hii

<u>21</u>

Step-by-step explanation:

<u>9+10 = 21</u>

Hopefully this helps <em>you </em>

- Matthew :)

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Which expression is equivalent to 2(x + 7) - 2(9x - 0.4)?
Black_prince [1.1K]

Answer:

-16x+14.8

Step-by-step explanation:

2(x+7)-2(9x-0.4)

2x+14-18x+0.8

-2x+14-18x+0.8

14-16x+0.8

14+0.8-16x

14.8+-16x

8 0
3 years ago
How to do question 5 and 6. Can you explain the first one which is A for 5 and 6?<br><br>Thank you​
Illusion [34]

for 6

in a

given

slope(m)=1

point=(2,-4)=(x1,y1)

we know

equation of straight line

y-y1=m(x-x1)

y+4=1(x-2)

y+4=x-2

therefore x-y-6=0 is the required equation

substituting with ax+by+c=0 we get

a=1

b= -1

c= -6

4 0
3 years ago
Some animals on farms eat hay to get energy. A cow can eat 24 pounds of hay each day. Write and evaluate an expression to find h
vladimir1956 [14]

Answer:

7392 pounds

Step-by-step explanation:

22x24x14

multiplication my friend

7 0
3 years ago
Which of the following expressions is correctly written in scientific notation?
valentinak56 [21]

Answer: D is correctly written in scientific notation.

Step-by-step explanation:

The base has to be between 1 and 10.

A has a base of 16.4 which is greater than 9.

B is not even in scientific because the base it being raise to an exponent

C has 0.71 as base which is less that.

3 0
3 years ago
K^2+5k-6=0 quadratic formula
s2008m [1.1K]
I hope this helps you



1.k^2+5k-6=0


a=1


b=5


c= -6


disctirminant =b^2-4ac


disctirminant =5^2-4.1. (-6)


disctirminant =49


x1= -(5)+ square root of 49/2.1



x1=-5+7/2


x1=1



x2= -5- square root of 49/2.1


x2= -5-7/2


x2= -6


7 0
3 years ago
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