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aleksandr82 [10.1K]
2 years ago
6

For 20 please help TT

Mathematics
1 answer:
Katyanochek1 [597]2 years ago
7 0

Answer:

a

Step-by-step explanation:

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-7=y/-10<br> Help me, please
emmainna [20.7K]

Answer:

70

Step-by-step explanation:

Solve any pre-algebraic equation with inverse operations:

-7 = y/-10

multiply both sides by -10

-7 * -10 = y

now simplify:

remember that multiplying two negatives with result in a positive

70 = y

3 0
3 years ago
When x 4, y = 1<br> х^2 + Зry — 7у^2<br><br><br> Can you explain the whole answer.
sineoko [7]
I couldn’t really understand the question but i did 4squared + 3r(1) - 7(1)squared and i got -33 + 3r
3 0
3 years ago
Can anyone help me with this?<br> Thank you
Sergeeva-Olga [200]

1. 3,6

2. 5,6

3. 4,5

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8 0
3 years ago
Read 2 more answers
If f(x)=4x-7 and g(x)=2x+4 evalvate f(x)+g(x) for x=-3
galben [10]

Answer:

-21

Step-by-step explanation:

We are told to find f(x) + g(x) for x= -3. Therefore, we must evaluate f(-3) and g(-3), then add them together.

First, evaluate f(-3).

f(x)=4x-7

To find f(-3), we need to substitute -3 in for x.

f(-3)= 4(-3)-7

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction First, multiply 4 and -3.

f(-3)= -12-7

Next, subtract 7 from -12

f(-3)= -19

Next, find g(-3).

g(x)=2x+4

To find g(-3), substitute -3 in for x.

g(-3)= 2(-3)+4

Solve according to PEMDAS. First, multiply 2 and -3.

g(-3)= -6+4

Next, add -6 and 4

g(-3)= -2

Now, we can add f(-3) and g(-3) together.

f(-3) + g(-3)

f(-3)= -19

g(-3)= -2

-19 + -2

Add

-21

7 0
3 years ago
Read 2 more answers
Enter the equation of the circle described below.<br> Center (-3, 0), radius sqrt 5
stealth61 [152]
Hello : 
<span> the equation of the circle is (x-a)²+(y-b)² = r²
A(a;b) center     r : </span><span>radius
</span>in this exercice : (x+3)²+y²=25
3 0
3 years ago
Read 2 more answers
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