3 years ago

Help....Simplify 5 − (−1). A. 6 B. −6 C. 4 D. −4

Mathematics

1 answer:

Ivahew [28]3 years ago

7 0

Answer:

A) 6

Step-by-step explanation:

The answer is 6 because , when two negatives are next to each other they cross out to make a positive. Which a positive is dealing with addition , making the problem 5+1 making the answer 6.

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Students were asked to choose their favorite sport

r-ruslan [8.4K]

Answer:

5/9-1/9=4/9

Step-by-step explanation:

5/9 chose basketball or soccer. 1/9 chose basketball.

<h3>answer is 4/9</h3>

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3 years ago

Use double angle formulas to find the exact value of sin2x,cos2x, and tan2x

denis-greek [22]

Sin2x = 2sinxcosx;
cos2x = (cosx)^2 - (sinx)^2;
tan2x = (sin2x)/(cos2x);

cosx = 5/13 from formula (sinx)^2 + (cosx)^2 = 1;

=> sin2x = 120/169;
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5 0

3 years ago

Y varies directly as x . If y is 2 when x is 8, then the constant of variation is 1/4 . True or False

dedylja [7]

When y = 2, x = 8.

This can be written as: 2/8.

Simplified: 1/4

True

3 0

3 years ago

Read 2 more answers

A cook makes vegetable barley soup by mixing 2 pounds of barley into 7 quarts of vegetable broth. Assume that the cook continues

grandymaker [24]

Answer:

10 lbs

Step-by-step explanation:

7 qts x 5 qts = 35 qts broth

2 lbs x 5 lbs = 10 lbs barley

8 0

3 years ago

Determine whether the relationship between the circumfrance of a circle and its diameter is a direct variation. If so, identify

kipiarov [429]

Answer:

The relationship between the circumference of a circle and its diameter represent a direct variation and the constant of proportionality is equal to the constant $\pi$

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y=kx$

where K is the constant of proportionality

In this problem we know that

The circumference of a circle is equal to

$C=\pi D$

therefore

the relationship between the circumference of a circle and its diameter is a direct variation and the constant of proportionality is equal to the constant $\pi$

3 0

3 years ago