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2 years ago

Z-(-7)< 5 Solve this inequalities

Mathematics

1 answer:

Dominik [7]2 years ago

8 0

Answer:

z less than -2

Step-by-step explanation:

z negative times negative is positive and 1 x 7 is 7

z+7 less than 5

z less than 5 - 7 because if a positive number crosses the sign it becomes negative

z less than -2 because 5-7 is -2

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Find the perimeter of this triangle pls

noname [10]

Answer:

72 cm i think

Step-by-step explanation:

19+19+10+10+7+7

3 0

2 years ago

Read 2 more answers

In how many years will the interest of a sum of rs 3600 at the rate of 5.5% per year be rs 594?

boyakko [2]

Answer:

In 3 years, the interest of a sum of rs 3600 at the rate of 5.5% per year be Rs 594.

Step-by-step explanation:

T = ?

R = 5.5%

P = Rs 3600

I = Rs 594

T = (I×100)/(P×R)

or, T = (594×100)/(3600×5.5)

or, T = 59400/19800

so, T = 3 yrs

7 0

2 years ago

(X-2)²+(y-1)²=25 how do you do this problem?

Tasya [4]

$(x-x_c)^2+(y-y_c)^2=r^2\\
(x_c,y_c) - \text{center}\\\\
(x-2)^2+(y-1)^2=25\\
\text{center}=(2,1)\\
r=\sqrt{25}=5$

5 0

2 years ago

PLEASE HELP

nirvana33 [79]

You don't say whether this is a right triangle or not.

Assuming it is a right triangle, then we use the Pythagorean Theorem to determine the length of the hypotenuse:

(hypo) = (length of third side) = √(12^2 + 4^2) = √(144+16) = √160 = 4√10.

This is approx. 12.65 inches. Since this does not match any of the possible answer choices, we'll have to take a different approach to answering this question.

Given that 2 sides of the given triangle are 12 and 4 inches, respectively, we see that the 3rd side has to be longer than 8 inches; otherwise we'd have three line segments on the same line, not forming a triangle.

By this reasoning, 9 inches is the only possible answer that could be correct. With sides 12, 9 and 4 inches, the triangle would be obtuse and appear quite flat, but not be part of a straight line as with a third side of 8.

6 0

3 years ago

Help solve this please

ad-work [718]

Answer:

a) 2

b) - $\frac{1}{2}$

c) y = 2x + 1

Step-by-step explanation:

First put the equation into slope intersept form (y=mx+b) by...

Move the variable to the right-hand side and change its sign : -y = -4 -2x

Change the signs on both sides of the equation: y = 4 + 2x

Use the commutative property to reorder the terms : y = 2x + 4

Slope intersept form : y = 2x + 4

Parallel lines have the same slope so.... a parallel slope is 2

First put the equation into slope intersept form (y=mx+b) by...

Move the variable to the right-hand side and change its sign : -y = -4 -2x

Change the signs on both sides of the equation: y = 4 + 2x

Use the commutative property to reorder the terms : y = 2x + 4

Slope intersept form : y = 2x + 4

To find a perpendicular slope flip the slope and change the sign : - $\frac{1}{2}$

First put the equation into slope intersept form (y=mx+b) by...

Move the variable to the right-hand side and change its sign : -y = -4 -2x

Change the signs on both sides of the equation: y = 4 + 2x

Use the commutative property to reorder the terms : y = 2x + 4

Slope intersept form : y = 2x + 4, parellel slope : 2

Substitute the x and y values with the given ordered pair: 3 = 2(1) + b
Calculate the product: 3 = 2 + b
Move the variable to the left-hand side and change its sign: -x = 2 - 3

Calculate the difference and change the signs : b = 1

Use the slope and y-intersept (b) to write the new line : y = 2x + 4

7 0

2 years ago