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3 years ago

15 POINTS!!!

1 answer:

vladimir1956 [14]3 years ago

8 0

This is possible, because intercepts include both x-intercepts, and y-intercepts. There are 3 zeros in a third-degree polynomial, and 4 intercepts, because the graph crosses the x-axis 3 times, and the y-axis once. Hope this helps!

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1/sin10°-√3/cos10°=4

Alexandra [31]

Answer:

$\frac{1}{\sin \left(10^{\circ \:\:}\right)}\:\:\frac{1}{\sin \:\left(10^{\circ \:\:}\right)}=4$

Step-by-step explanation:

Given the expression

$\frac{1}{\sin \left(10^{\circ \:}\right)}-\frac{\sqrt{3}}{\cos \left(10^{\circ \:}\right)}=4$

Taking the left-hand side and solving it

$\frac{1}{\sin \left(10^{\circ \:}\right)}-\frac{\sqrt{3}}{\cos \left(10^{\circ \:}\right)}$

$\frac{1}{\sin \:\left(10^{\circ \:\:}\right)}=5.76$

and

$\frac{\sqrt{3}}{\cos \left(10^{\circ \:\:}\right)}=1.76$

so the expression becomes

$\frac{1}{\sin \left(10^{\circ \:\:}\right)}\:\:\frac{1}{\sin \:\left(10^{\circ \:\:}\right)}=5.76-1.76$

$=4$

Thus, we conclude that

$\frac{1}{\sin \left(10^{\circ \:\:}\right)}\:\:\frac{1}{\sin \:\left(10^{\circ \:\:}\right)}=4$

8 0

3 years ago

A scientist has two solutions, which she has labeled Solution A and Solution Each contains salt. She knows that Solution A is 40

Alexxandr [17]

Answer:

Step-by-step explanation:

Let the number of ounces of

A = x

B = y

A scientist has two solutions, which she has labeled Solution A and Solution Each contains salt. She knows that Solution A is 40% salt and Solution B is 55% salt. She wants to obtain 90 ounces of a mixture that is 45% salt. How many ounces of each solution should she use?

Our system of equations is given as

x + y = 90.... Equation 1

x = 90 - y

40% × x + 55% × y = 45% × 90 ounces

0.4x + 0.55y = 40.5....Equation 2

We substitute 90 - y for x in Equation 2

6 0

3 years ago

6300 principal earns 6% interest compounded annually after 3 years what is the balance

I am Lyosha [343]

Divide
$6300 \sqrt{6}$
then multiply the divide awnswer and multiply by 3

4 0

3 years ago

A 1.5 kilogram lab cart accelerated unitorily from rest to a speed of 2.0 meters per second in 0.50 second What is the magnitude

NISA [10]

Acceleration = (change in speed) / (time for the change)

Change in speed = (speed at the end) minus (speed at the beginning.

The cart's acceleration is

(0 - 2 m/s) / (0.3 sec)

= ( -2 / 0.3 ) (m/s²) = -(6 and 2/3) m/s² .

Newton's second law of motion says

Force = (mass) x (acceleration) .

For this cart: Force = (1.5 kg) x ( - 6-2/3 m/s²)

= ( - 1.5 x 20/3 ) (kg-m/s²)

= - 10 newtons .

The force is negative because it acts opposite to the direction
in which the cart is moving, it causes a negative acceleration,
and it eventually stops the cart.

3 0

3 years ago

Write the equation of the line that passes through the point (3,5) and is perpendicular to the line y=3.

lorasvet [3.4K]

Answer:

x=3 and y=5 passes through(3,5)

x=2 and x=3 is perpendicular to y=3

so anwer is x=3

4 0

4 years ago