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2 years ago

Please help! If you do you will get 'Brainliest'

Mathematics

2 answers:

aalyn [17]2 years ago

5 0

Answer:

Step-by-step explanation:

This is because 1/2 down from 1 1/2 is 1 then go 2 down on the number lone and you get 1 (B)

Flauer [41]2 years ago

4 0

Answer:

your answer is D.

Step-by-step explanation:

if you go 2 numbers to the right you get 3 and now the half would go in between 3 which would make your answer 3 and one half.

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Can someone help me with number 7 the circled one?

Ivenika [448]

Your answer:
<span>Equation:
x(x+1) = 2(x+1)+77
-----

x^2+x = 2x+79
x^2-x-79 = 0
------
This quadratic does not have an integer solution.</span>

5 0

2 years ago

In △XYZ , XZ=9 , YZ=4 , and XY=7 .

Mamont248 [21]

Answer:

$A=6\sqrt{5}\ units^2$

Step-by-step explanation:

we know that

Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.

$A=\sqrt{s(s-a)(s-b)(s-c)}$

where

a, b and c are the length sides of triangle

s is the semi-perimeter of triangle

we have

$a=9\ units,b=4\ units,c=7\ units$

Find the semi-perimeter s

$s=\frac{9+4+7}{2}=10\ units$

Find the area of triangle

$A=\sqrt{10(10-9)(10-4)(10-7)}$

$A=\sqrt{10(1)(6)(3)}$

$A=\sqrt{180}\ units^2$

Simplify

$A=6\sqrt{5}\ units^2$

8 0

3 years ago

Which expression is equivalent to 6/7 divided by 3/5 ?

Harman [31]

Answer:

Step-by-step explanation:

6/7 / 3/5 we invert the divisor and multiply:

= 6/7 * 5/3

8 0

2 years ago

a twelve sided die with side labeled 1-12 will be rolled once. What is the probability of rolling a number less than 9?

puteri [66]

12 possible outcomes
any number less than 9 is 8 and below
8 sides of the dice are less than 9 out of 12 total sides
8/12 is the chance you’ll roll lower than 9

2/3 or 66% chance you’ll roll a number lower than 9

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11 months ago

Which is true about the polynomial ?

Sergio [31]

And I don’t want to you know what to you

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2 years ago