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madreJ [45]
3 years ago
13

Could you please help and explain? Needed asap

Mathematics
1 answer:
marin [14]3 years ago
5 0
For number 1 i got x equals 9, for the rest i don’t remember sorry
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Plz Help me<br><br>3x + 5y = 13 <br>2x + y = 4​
Finger [1]

Answer:

solve simultaneously

start by labeling them equation 1 and 2 then choose whether you want to make x or y the subject from knew of the equations

7 0
3 years ago
Using the unit circle find the exact value. CSC -30º =​
AlexFokin [52]

Answer:

csc (- 30)° = - 2

Step-by-step explanation:

Using the trigonometric relationship

csc x = \frac{1}{sinx} and the exact value sin30° = \frac{1}{2}

sin(- 30)° = - sin30° = - \frac{1}{2}, thus

csc (- 30)° = \frac{1}{-\frac{1}{2} } = - 2

8 0
3 years ago
Gonzalez is wrapping a gift box for his sister's birthday. The box's
telo118 [61]

Answer:

35

Step-by-step explanation:

you add it all up 17+12 29 then you add 29+6 and that equals 35

6 0
3 years ago
Read 2 more answers
5.5 = -2 + d
TEA [102]
The value of <em>d</em> is 7.5.

The key to solving equations is doing the inverse, or opposite, function/process.
For example, you subtract when d + 1 = 2:
d + 1 = 2
(d + 1) -1 = (2) - 1
d = 1

In the same way, you add values when you have a negative:
5.5 = -2 + d = d - 2
5.5 = d - 2
(5.5) + 2 = (d - 2) + 2
7.5 = d

Now if instead of adding 2, you subtract 2, the problem becomes:
5.5 = d - 2
(5.5) - 2 = (d - 2) - 2
3.5 = d - 4

This doesn't solve your problem, it just makes the value needed to be canceled out larger.

Thus d = 7.5 and you will add because the value is negative.
7 0
3 years ago
Read 2 more answers
Please answer 6, 7 and 8
alexandr402 [8]

Answer:

A

Step-by-step explanation:

You are going to go over 2 and up 5

D

F

7 0
3 years ago
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