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2 years ago

. Four times the sum of 3 and a number is 16. Find the number. PLEASE A I NEED IT

Mathematics

1 answer:

Vedmedyk [2.9K]2 years ago

3 0

Answer:

x=1

Step-by-step explanation:

it is

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. $7.45 + ‐$24.45 + $74.17 + ‐$76.52

lisov135 [29]

Answer:

$-19.35 or -19.35 aprox

Step-by-step explanation:

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3 years ago

Read 2 more answers

A rectangle has a height of 2 + 9 and a width of x2 + 2x.

Dafna1 [17]

Answer: 40

Step-by-step explanation:

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3 years ago

X+y=1212<br> x-y=518 <br> please help me with it

Murljashka [212]

Here,

x+y=1212•••••• $\bold{equation~I }$
x-y=518•••••• $\bold{equation~II }$

ADDITIONALL,both two equation.

we get that,

x+y+x-y=1212+518
2x=1730
x=865

so,

x-y=518
865-y=518
y=860-518
y=347

5 0

3 years ago

Inverse Functions Help Algebra 2

Kaylis [27]

The composition of the functions is is applying one function to the results of another. Then $(g\circ f)(x)=g(f(x))$ .

If $f(x)=\dfrac{1}{x}$ , then

$g(f(x))=g\left(\dfrac{1}{x}\right)$ .

If $g(x)=\dfrac{1}{x}$ , then

$g(f(x))=g\left(\dfrac{1}{x}\right)=\dfrac{1}{\frac{1}{x}}=x$ .

Answer: $(g\circ f)(x)=x$ .

8 0

3 years ago

can anyone help on these two questions show your work and explain please 5. the table below shows the temperature T(m) of a cup

andreyandreev [35.5K]

Answer:

(1), (3)

Step-by-step explanation:

5. If m starts at 1, a geometric series has the form a₁ (r)ᵐ⁻¹.

If m starts at 0, a geometric series has the form a₀ (r)ᵐ.

Here, m starts at 0. The first term, a₀, is 150. The temperature is decreasing, so we're looking for an r < 1. Therefore, the answer must be (1) 150 (0.85)ᵐ.

7. A quadratic written in vertex form is:

y = a(x - h)² + k

We can find the vertex of the parabola using x = -b/(2a).

x = -12 / (2*3)

x = -2

f(-2) = 3(-2)² + 12(-2) + 11

f(-2) = -1

So the vertex (h, k) is at (-2, -1).

Therefore, the answer must be f(x) = 3(x + 2)² - 1

We can also show this by completing the square.

f(x) = 3x² + 12x + 11

f(x) = 3(x² + 4x) + 11

f(x) = 3(x² + 4x + 4) - 3(4) + 11

f(x) = 3(x + 2)² - 1

8 0

3 years ago