3 years ago

What is the value of the expression?

1 answer:

6 0

-2/5 - (3/7) × (7/10)
= -2/5 - (21/70)
= -2/5 - 3/10
= -4/10 - (3/10)
= -7/10

Or

-0.7 (Decimal Form)

You might be interested in

rodikova [14]

B becuase of 49.99 times .75

6 0

3 years ago

IrinaVladis [17]

Answer: 8.2 mm

Step-by-step explanation:

$\sin 60^{\circ}=\frac{v}{9.5}\\\\v=9.5 \sin 60^{\circ} \approx \boxed{8.2 \text{ mm}}$

7 0

2 years ago

Hoochie [10]

Answer:

there you go . Good luck plz mark me brainliest .

8 0

3 years ago

Brums [2.3K]

See the steps, ask me if you have question

4 0

3 years ago

Vera_Pavlovna [14]

$\displaystyle\\Answer:\ y=\sqrt{\frac{x-1}{2} } \ \ \ \ (x\geq 1,\ \ \ \ y\geq 0)$

Step-by-step explanation:

$y=2x^2+1\\$

We change the argument and the value:

$\displaystyle\\x=2y^2+1\\\\x-1=2y^2+1-1\\\\x-1=2y^2\\$

Divide both parts of the equation by 2:

$\displaystyle\\\frac{x-1}{2}=y^2\\\\ \sqrt{\frac{x-1}{2} }=y \ -\ the\ desired\ inverse\ function\\\\$

The restrictions are imposed on the inverse function by on x:

$x-1\geq 0\\x\geq 1$

The restrictions are imposed on the inverse function by on y:

$y\geq 0$

Then the original function is defined on the sets:

$x\geq 1,\ \ \ \ y\geq 0$

The initial function, a parabola, is constrained because of the inverse function; only in this case the functions are reciprocal.

3 0

1 year ago