what is the answer ?

Answer:

-1

Step-by-step explanation:

We need to find the value of tan² 70° -sec² 70°​.

We know that,

[tex]\sec^2\theta-\tan^2\theta=1[/tex] ...(1)

We can write the given expression as :

tan² 70° -sec² 70° = -(-tan² 70° +sec² 70°)

=-(sec² 70°-tan² 70°)

Using identity (1)

=-(1)

= -1

Hence, the value of the given expression is -1.

Answer:

No I do not agree with Andre

Step-by-step explanation:

Andre says that 3 divided by 2/3

Solving for 3 ÷ 2/3

3 ÷ 2/3

= 3 × 3/2

= 9/2

= 4 1/2

Therefore, 3 divided by 2/3 is 4 1/2

Andre's reasoning is wrong.

Answer:

Step-by-step explanation:

i hope it helps :)

Answer:

Father's shadow is 9 feet long.

Step-by-step explanation:

From the given figure,

ΔABC and PQR will be similar.

So their corresponding sides will be proportional.

[tex]\frac{AC}{PR}=\frac{BC}{QR}[/tex]

[tex]\frac{AC}{7.5}=\frac{6}{5}[/tex]

AC = [tex]\frac{6\times 7.5}{5}[/tex]

AC = 9 feet

Therefore, measure of the father's shadow is 9 feet.

Answer:

if 1g =3.785 then multiply by 24g = 90.84liters

Answer:

My teacher doesnt even know this

Answer:

0.6

Step-by-step explanation:

3 divided by 5

Answer:

20x-40

Step-by-step explanation:

Answer:

20x-40

Step-by-step explanation:

The first one

=10(2x- 4)

= 20x-40

Answer:

1.4

Step-by-step explanation:

Divide 2.8 by 2 because of 2 minutes to make it 1 minute.

Answer:

What are you on??????

Step-by-step explanation:

9514 1404 393

Answer:

  y = 0.2·0.5^x

Step-by-step explanation:

An exponential function is generally of the form ...

  y = a·b^x

where 'a' is the function value when x=0, and b is the ratio between values for x=1 and x=0.

In the given table, y = 0.2 for x = 0, so a = 0.2.

We find that the value for x = 1 is 0.1, so the value of b is ...

  b = 0.1/0.2 = 0.5

Then the exponential function is ...

  y = 0.2·0.5^x

Answer:

4,891 is your answer

Step-by-step explanation:

I am 99 percent sure this is correct.

Answer:

18,090

Step-by-step explanation:

change 73% to a decimal then multiply 0.73 times 67000 and u should get 48910 and then subtract that by 67000 - 48910 and u get 18,090 hope this helps

Answer:

y = -7x + 17

Step-by-step explanation:

you want to isolate the 'y' variable, start by distributing -7 on the right side

y + 4 = -7x + 21

now subtract 4 from each side

y = -7x + 17

Answer:

y=mx + b     y=-7x + 17

Step-by-step explanation:

Work Progress: 17.22mile/6 days = 2.87

Tonda ran 2.87 miles each day.

Answer:

103.32

Step-by-step explanation:so what you need to do is times the decimals so: 17.22 x 6 = 103.32

Answer:

Correct option is B.

Step-by-step explanation:

Given the radius of circle and the angle in sector we have to find the area of shaded region i.e minor sector.

∴ Area of sector is

Correct option is B.

Answer:

Wanna ask Is it a cylinder?

...........

Answer:

7.57142857143 minutes

Step-by-step explanation:

Answer:

(-4, 0) and (-3, 2)

Step-by-step explanation:

Substitute each value into the equation.

Since x = -4 in the first ordered pair, to find y, you just put it into the equation as x:

y = 2(-4) + 8

y = -8 + 8

y = 0

The first ordered pair is (-4, 0)

Now, do the same for the second ordered pair. Substitute 2 for the y and solve for x:

2 = 2x + 8

-6 = 2x

x = -3

The second ordered pair is (-3, 2)

I hope this helps!

The missing coordinates in the ordered pairs are (-4, 0) and (-3, 2).

An ordered pair (x, y) is used to represent the location of a point in coordinate geometry where x is the horizontal distance and y is the vertical distance of the point.

Given that, a line y = 2x+8, passes through two points (-4, y) and (x, 2) we need to find the value of x and y,

Since, the line is passing through the points therefore, the points will satisfy the equation of the line,

Put x = -4, in the equation,

y = 2(-4)+8

y = 0

So, the point is (-4, 0)

Put y = 2, in the equation,

2 = 2x+8

2x = -6

x = -3

So, the point is (-3, 2)

Hence, the missing coordinates in the ordered pairs are (-4, 0) and (-3, 2).

Learn more about ordered pairs click;

https://brainly.com/question/30805001

#SPJ2

Answer:

a the interest charged - $8.82

b is  608.82.

(once again sorry abt that)

Step-by-step explanation:

Answer:

63

Step-by-step explanation:

450 × 14 ÷ 100 = $63

hope this helps

Answer:

i think is 63

Step-by-step explanation:

The answer is (4, -6), or the fourth option.

Answer:

4

Step-by-step explanation:

Since he is only using 1/2 of that it would be 4

Answer:

s=7w + 85..$141 in total for 8 weeks

Answer:

See explanation below

Step-by-step explanation:

Explain what is the difference between the solutions to 2x=10 and 2x > 10

Given the equations;

2x  = 10

x = 10/2

x = 5

For the equation 2x > 10

x > 10/2

x > 5

The first equation has only one solution which is 5 while the second equation has infinite number of solutions since the values of x can take any value that is greater than 5

Answer:

1/7

Step-by-step explanation:

4/14-2/14= 2/14= 1/7

Answer:

2/7 -  1/7 = 1/7

Step-by-step explanation:

Answer:

y = -x -3

Step-by-step explanation:

y value is decreasing which means negative slope

you can use slope formula to find slope

(y2-y1)/(x2-x1) = m

(-4-(-2))/(1-(-1)) = -1

m = -1

you can find y -intercept by plugging in slope and one coordinate into y=mx+b

-2 = -1(-1) + b

b = -3

Answer:

x and y both are negative.

Answer:

The answer is 2 ¾

Step-by-step explanation:

11/4 = 2 ¾

4 - 2 ¾ = 2¾