2 years ago

Solve for the unknown angle

Mathematics

1 answer:

Naya [18.7K]2 years ago

8 0

Answer:

(?)=70

Step-by-step explanation:

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Solve the system of linear equations below. <br><br> X+y=4<br> 2x+3y=0

deff fn [24]

X + y = 4...x = 4 - y

2x + 3y = 0
2(4-y) + 3y = 0
8 - 2y + 3y = 0
-2y + 3y = 0 - 8
y = -8

x + y = 4
x - 8 = 4
x = 4 + 8
x = 12

solution is : (12,-8)

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2 years ago

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Assume you have sea water that weighs 64 lb/ft³ and contains 35 parts per thousand (0.0035) dissolved salt by weight. How many c

zlopas [31]

Answer:

558.036 lb

Step-by-step explanation:

Let x is the amount of the sea water to collect 125 lb of sea salt

As given: 64 lb/ft³ has 0.0035 dissolved salt by weight

So the formula to find out the amount of the sea water is:

64 lb/ft³ * 0.0035 *x ft³ = 125 lb

<=> x = $\frac{125}{64*0.035}$ = 558.036 lb

Hope it will find you well.

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2 years ago

Two pentagons are similar. So, their corresponding sides must have the same lengths.

Paul [167]

False.

they are similar not exactly alike.

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2 years ago

Marni has 11 ounces of walnuts. She needs 6 ounces for one recipe and pound for another. There are 16 ounces in 1 pound.

Ahat [919]

11-6=5 ounces. She doesn’t have enough for both of the recipes. She will need 11 more ounces to be able to make the recipes. 5+11=16 and 16 ounces are in a pound.

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1 year ago

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What is the solution of log2x+3125 = 3? (1 point)

enot [183]

Answer:

$x = - 1062.5$