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3 years ago

What is the value of k in the following equation?

Mathematics

2 answers:

S_A_V [24]3 years ago

5 0

Answer:

Step-by-step explanation:

1/5 = .2

.2x25 = 5

Cheers!

kykrilka [37]3 years ago

3 0

B is the answer okay it’ll be correct

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Tell whether the number is prime or composite 68,52,63, 75, 31, 77, 59, 87

Paha777 [63]

A prime number can only be divided by one oritslef and a composite number can bedivided by other njmbers.

7 0

3 years ago

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Find the base of a triangle if its area is 54 square centimeters and its altitude is 9 centimeters.

Westkost [7]

Answer:

12 cm

Step-by-step explanation:

A = bh/2

54 = b(9)/2

b = 54(2)/9

b = 12

8 0

3 years ago

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The opposite angles of a parallelogram have measures of (3x-20) and (x+15). Find x

KiRa [710]

ANSWER

The value of x is,

$17.5$

EXPLANATION

We were given that the opposite angles of a parallelogram are

$3x - 20$ and $x + 15$ .

The opposite angles of a parallelogram are equal.

We can write the equation below in x and use to find the value of x.

$3x - 20 = x + 15$

We group like terms to obtain,

$3x - x = 15 + 20$

This implies that,

$2x = 35$

We divide both sides of the equation by 2 to obtain,

$x = 17.5$

4 0

3 years ago

2 + y + y + y + y + y + 3 ?

Temka [501]

Answer:

5 + 5y

Step-by-step explanation:

2 + y + y + y + y + y + 3

Combine like terms

2+3 + y + y + y + y + y

5 + 5y

6 0

3 years ago

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A.The y-intercept of the function is 3.

Marrrta [24]

Answer:

D. The slope of the function is positive.

Step-by-step explanation:

I think the best thing to start with is the slope. Lets figure it out using the slope formula, (y2-y1)/(x2-x1).

Using the points, (-4, -7) and (-3, -4),

(-4 - (-7)) / (-3 - (-4))

= 3 / 1

= 3

Right off the bat, you can see that C is incorrect.

Lets go through the other choices and check now.

Using our slope, lets write an equation in the slope intercept form.

y = -3x + b (derived from y=mx+b)

Now, lets plug in a point (let's say, (-4,-7)) to verify if 3 really is the y intercept.

-7 = 3(-4) + b

-7 = -12 +b

5 = b

Since 3 is not equal to 5, A is incorrect. That leaves us with choice B and D.

We know that the x-intercept is found as (0, a), meaning that this x intercept is (0, 5/3). Let's plug it into the equation!

0 = 3(5/3) + 5

0 = 5 + 5

0 = 10

Since this is obviously incorrect, our answer is D, the slope of the function is positive. Let me know if you have any other questions.

8 0

4 years ago