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3 years ago

What’s negative 1 5/8 divided by 1

Mathematics

1 answer:

wolverine [178]3 years ago

5 0

Answer:

13/8

Step-by-step explanation:

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Factor completely 2x2 − 2x − 40

Montano1993 [528]

Answer:

2(x-5)(x+4)

Step-by-step explanation:

2x^2 − 2x − 40

Factor out a 2

2(x^2 -x -20)

What 2 numbers multiply to -20 and add to -1

-5*4 = -20

-5+4 = -1

2(x-5)(x+4)

4 0

2 years ago

The graph below shows two polynomial functions, f(x) and g(x):

Marianna [84]

<span>A. g(x) is an even degree polynomial with a positive leading coefficient.
because g(x) curves upward at both ends</span>

7 0

2 years ago

Read 2 more answers

Name the property that is being demonstrated

otez555 [7]

Answer:

<h3> Commutative property </h3>

Step-by-step explanation:

The "Commutative Laws" say: when we add we can swap numbers over and still get the same answer.

8 - 2 = (8) + (-2) = (-2) + (8) = -2 + 8

6 0

3 years ago

Read 2 more answers

Two cargo ships spot a signal fire on a small island. The captains know they are 140 feet

Irina18 [472]

The distance from Ship B to the signal fire at point C is $405.4 \mathrm{ft}$

Explanation:

It is given that two ships A and B are at a distance 140 ft from each other.

The angle formed by ship A is 82º and the angle formed by ship B is 78º.

To determine the distance from ship B to the signal fire at point C, we need to know the another angle.

Hence, we have,

$\begin{aligned}\angle A+\angle B+\angle C &=180^{\circ} \\82^{\circ}+78^{\circ}+\angle C &=180^{\circ} \\160^{\circ}+\angle C &=180^{\circ} \\\angle C &=20^{\circ}\end{aligned}$

Now, we shall solve the problem using the law of sines,

$\frac{\sin A}{a}=\frac{\sin C}{c}$

Substituting the values, we have,

$\frac{\sin 82^{\circ}}{a}=\frac{\sin 20^{\circ}}{140}$

$\frac{0.9903}{a}=\frac{0.3420}{140}$

Simplifying, we get,

$a=\frac{0.9903 \times 140}{0.3420}$

$a=405.4$

Thus, the distance from Ship B to the signal fire at point C is $405.4 \mathrm{ft}$

4 0

3 years ago

Could someone please help!

Misha Larkins [42]

Answer: t = -1

Step-by-step explanation:

8 0

3 years ago