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pav-90 [236]
2 years ago
15

Can someone help me?

Mathematics
1 answer:
kirill [66]2 years ago
5 0

Answer:

x = 2.8

Step-by-step explanation:

4.2 (1/3) = 1.4

2 (1.4) = 2.8

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Intr un album numarul de fotografii s a micsorat cu 50%. Cu cat trebuie sa se mareasca pentru a reveni la numarul initial? Raspu
hodyreva [135]

Răspuns:

100%

Explicație pas cu pas:

Permiteți numărul inițial de fotografii = x

x - 50% din x = x - 0,5x = 0,5x

0,5x + câte% din 0,5x = x

x - 0,5x = y% de 0,5x

0,5x / 0,5x = 1

Prin urmare,

100% = 1

Prin urmare, x trebuie mărit cu 100% pentru a reveni la numărul original.

3 0
2 years ago
In ΔSTU, the measure of ∠U=90°, ST = 33 feet, and US = 20 feet. Find the measure of ∠T to the nearest tenth of a degree.
lubasha [3.4K]

Answer:

<em>37.3° </em>

Step-by-step explanation:

sin β = \frac{20}{33} ⇒ β = arcsin \frac{20}{33} = <em>37.3°</em>

6 0
2 years ago
Find an orderd pair (x,y) that is a solution to the equation 4x+y=9
Aleksandr [31]

Answer:

Below in bold.

Step-by-step explanation:

4x + y = 9

Let's put x = 0 then:

4(0) + y = 9

0 + y = 9

y = 9

So one. ordered pair that is a solution is (0, 9)

7 0
2 years ago
Can anyone help me with this?
Vanyuwa [196]

Answer:

-2.5°F

Step-by-step explanation:

-12 - 48 = -60

-60/24 = -2.5°F

7 0
3 years ago
Use the discriminant to find all values of b for which the question has one real solution.
Arada [10]
Use the formula 0 = b^2-4ac

0 = -b^2-4(2)(-9)

0 = -b^2+72

b^2 = 72

b = square root of 72

b = 2 real numbers
4 0
3 years ago
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