3 years ago

What is the sign of-5×-1/-2

1 answer:

5 0

The sign would be negative because there is an odd number of negatives. If there were an even number of negatives it would be positive.

Multiply -5 by -1

The answer would be -5/2

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Aloiza [94]

Answer:

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3 0

2 years ago

This is pre calculus please help !Describe three ways to determine the measure of segment YZ.

Dmitry [639]

(1) Using trigonometric ratios:
$sin(30) = \frac{YZ}{50}$
$YZ = 25$

(2) Using Pythagoras' Theorem:
$cos(30) = \frac{XY}{50}$
$50cos(30) = XY$
$50^{2} - 50^{2}cos^{2}(30) = YZ^{2}$
$2500 - 2500cos^{2}(30) = YZ^{2}$
$YZ = 25$

(3) Using sine rule:
$\frac{50}{sin(90)} = \frac{YZ}{sin(30)}$
$50 = \frac{YZ}{sin(30)}$
$50sin(30) = YZ$
$YZ = 25$

7 0

3 years ago

Read 2 more answers

Nooha purchased a tv for $9000 and sold it at a profit of 8% find selling price

miskamm [114]

Answer:

720

Step-by-step explanation:

because 8% of 9000$ is 720$.

another way.

Step 1: Our output value is 9000.

Step 2: We represent the unknown value with $x$.

Step 3: From step 1 above,$9000=100$.

Step 4: Similarly, $x=.8%$.

Step 5: This results in a pair of simple equations:

$9000=100%(1)$.

$x=.8%(2)$.

Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

Step 7: Again, the reciprocal of both sides gives

Therefore, 8%of $9000$ is $720

4 0

3 years ago

Warren started making oatmeal cookies at 3:30 pm.It took him 30 minutes to make the dough and 2 hours to bake all of the cookies

ladessa [460]

6PM I believe because 3:30 + 30 min = 4:00 + 2 hr (2:00) = 6:00!

Hope this helped and sorry if it’s incorrect!

<3

8 0

3 years ago

Evaluate each expression for 3,6,8

Nadusha1986 [10]

I think the answer is going to be 3s

7 0

2 years ago