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suter [353]
2 years ago
11

Find the value of 9u-2 given that -7u-7=7 ?

Mathematics
2 answers:
kupik [55]2 years ago
6 0

Hey there!

-7u - 7 = 7

ADD 7 to BOTH SIDES

-7u - 7 + 7 = 7 + 7

CANCEL out: -7 + 7 because it give you 0

KEEPs 7 + 7 because it help solve for the u-value

NEW EQUATION: -7u = 7 + 7

SIMPLIFY IT!

-7u = 14

DIVIDE -7 to BOTH SIDES

-7u/-7 = 14/-7

CANCEL out: -7/-7 because it give you 0

KEEP: 14/-7 because it give you the

u-value

NEW EQUATION: u = 14/-7

SIMPLIFY IT!

u = -2


SOLVING FOR : 9u - 2

9u - 2

= 9(-2) - 2

= -18 - 2

= -20


Therefore, your answer is: -20

Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

Yuliya22 [10]2 years ago
4 0

Answer:

-20

Step-by-step explanation:

when you solve:  -7u-7=7, you get u= -2 and when you plug it in you get this equation 9(-2)-2=?

then you get -20

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On a coordinate plane, a line is drawn from point C to point D. Point C is at (negative 1, 4) and point D is at (2, 0). Point C
skelet666 [1.2K]

Answer:

distance = 5 units

Step-by-step explanation:

In order to solve this problem we can start by plotting the two points you were provided with (see attached picture). This will help us visualize the problem better.

Now, we need to find the distance between those two points, so in order to do so we can use the distance formula:

distance = \sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}

in this case the x's and y's are given by the given points, since they are written as ordere pairs. And ordered pairs are written in the form (x,y). So for Point C:

C=(-1,4)

x_{1}=-1

y_{1}=4

and for point D

D=(2.0)

x_{2}=2

y_{2}=0

so we can now use those values in our distance formula so we get:

d=\sqrt{(2-(-1))^{2}+(0-4)^{2}}

d=\sqrt{(3)^{2}+(-4)^{2}}

d=\sqrt{9+16}

d=\sqrt{25}

d=5 units.

3 0
3 years ago
Question 15 please. Thanks
horsena [70]
Ignore the decimal places and do 789x38 and you get 29982. Now all you have to do is put the decimal places back. Since 789 was 7.89 it had 2 decimal places and 38 had 1 you have to move 29982 three decimal places to the left making your final answer 29.982.
3 0
2 years ago
ASAP PLEASE CAN SOMEONE HELP ME!!!! WHO CAN EXPLAIN? <br> THANK YOU!
Reika [66]
F(x)=4x^2+1 works for it

put some x value like 0,0.2,0.5,1 u will get the f(x) curve



6 0
3 years ago
On a coordinate plane, DEF has vertices D(1,2), E(7,2)and F(1,9). What is the distance between point E and F?
notka56 [123]

Step-by-step explanation:

Using distance formula,

Let the distance between point E and F = ef,

ef  =  \sqrt{{(7 - 1)}^{2}  +  {(2 - 9)}^{2} }  \\ ef =  \sqrt{85}  \\  = 9.219544457

8 0
2 years ago
At a tournament, the bowling league is providing 160 sandwiches for its members.The table shows the number of different types of
frez [133]

Answer:Roast  beef- 32 turkey-80 Vegetarian-48


Step-by-step explanation:

This is the answer because if you divide 160 divide by 5 that gives you 32 for the roast beef. For the turkey you divide 160 and 3 that gives you 80. For the vegetarian you have to add 32 and 80 that gives you 112. Then, you subtract 160 and 112 that gives you 48. To check your answer you add 32, 80, and 48 that gives you 160.


4 0
3 years ago
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