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3 years ago

Complete the solution of the equation. find the value of y when x equals -4 5x+2y= -40

Mathematics

1 answer:

jonny [76]3 years ago

3 0

Answer: y= -10

Step-by-step explanation:

* Hopefully this helps:) Mark me the brainliest.

∞ 234483279c20∞

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(02.01)Which translation will change figure ABC to figure A'B'C'?

liq [111]

Answer:

4 units right and 3 units up.

Step-by-step explanation:

6 0

2 years ago

1.Arsenic-74 is used to locate brain tumors. It has a half-life of 17.5 days. 90 mg wereused in a procedure. Write an equation t

Sophie [7]

$1)\text{ }N_t\text{ = 90\lparen}\frac{1}{2})^{\frac{t}{17.5}}$

2) 5.625 mg will be left

Explanation:

1) Half-life = 17.5 days

initial amount of Arsenic-74 = 90 mg

To get the equation, we will use the equation of half-life:

$\begin{gathered} N_t\text{ = N}_0(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}} \\ where\text{ N}_t\text{ = amount remaining} \\ N_0\text{ = initial amount} \\ t_{\frac{1}{2}\text{ }}\text{ = half-life} \end{gathered}$ $N_t\text{ = 90\lparen}\frac{1}{2})^{\frac{t}{17.5}}$

2) we need to find the remaining amount of Arsenic-74 after 70 days

t = 70

$\begin{gathered} N_t=\text{ 90\lparen}\frac{1}{2})^{\frac{70}{17.5}} \\ N_t\text{ = 5.625 mg} \end{gathered}$

So after 70 days, 5.625 mg will be left

4 0

1 year ago

1. Evaluate x2 + 10 if we let x= 3

snow_tiger [21]

Answer:

Step-by-step explanation:

$x2 + 10 \\ = 3 \times 2 + 10 \\ = 6 + 10 \\ = 16$

4 0

3 years ago

Read 2 more answers

HELPPPP What is the range of g

dimulka [17.4K]

The range is how long the graph extends vertically. So, the lowest value is -9 (since the graph extends down until -9) and the highest value is 9 (since the graph extends up until 9). The lowest value goes in the first box and the highest value goes in the second box. The range is:

-9 ≤ g(t ) ≤9

3 0

2 years ago

A rectangle has a base of 5 cm and a height of (x + 2)cm. Its area is 20 cm ^ 2. What is the value of x?

Len [333]

So area is base x height:
5(x+2)=20
5x+10=20
5x=10
x=2
its A

3 0

3 years ago