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Katyanochek1 [597]
3 years ago
5

Answer both questions please

Mathematics
1 answer:
alex41 [277]3 years ago
6 0

Answer:

Sorry I can't because i don't know this : (

Step-by-step explanation:

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Slope=-7, through (-5,9)
Gre4nikov [31]

Answer:

y = - 7x - 26

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = - 7, thus

y = - 7x + c ← is the partial equation of the line

To find c substitute (- 5, 9) into the partial equation

9 = 35 + c ⇒ c = 9 - 35 = - 26

y = - 7x - 26 ← equation of line

3 0
4 years ago
Brine is a solution of salt and water. If a tub contains 50 gallons of a 5% solution of brine, how much water must
Nuetrik [128]

Let w be the amount of water that evaporates. At the start, the solution in the tub consists of 2.5 gallons of salt (5% of 50 gallons). After w gallons of water evaporates, we're left with a solution with total volume 50-w gallons, and 8% of this amount should be salt, or 0.08(50-w) gallons of salt. The amount of salt in the tank before and after evaporation remains unchanged, so

2.5=0.08(50-w)\implies2.5=4-0.08w\implies0.08w=1.5\implies\boxed{w=18.75}

gallons of water need to be evaporated.

8 0
3 years ago
Which of the following is the graph of y = 3x2 + 6?
natali 33 [55]

Answer:

what are the graphs?

Step-by-step explanation:

4 0
3 years ago
Which of the following statements is a true proportion? 18/42=12/18,18/42=9/24,18/42=21/48,or 18/42=118/142
Ede4ka [16]
<span>turn it to a decimal and see

</span><span>#1 False
 </span>
<span>0.428571≠0.666667

#2

</span><span><span>0.428571≠</span>0.375

</span><span>False

#3


</span><span><span>0.428571≠</span>0.4375

</span><span>False</span>


6 0
3 years ago
Read 2 more answers
Can someone explain on how to find this question please?
Mariulka [41]

Answer:

∠ SOU = 138°

Step-by-step explanation:

the opposite angles of a tangent kite are supplementary, sum to 180° , so

∠ SOU + ∠ STU = 180° , that is

∠ SOU + 42° = 180° ( subtract 42° from both sides )

∠ SOU = 138°

4 0
2 years ago
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