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2 years ago

Hello I need help with this question

Mathematics

1 answer:

Andreyy892 years ago

7 0

The answer is x=7. Since the two angles are corresponding. Then it would be 10x-2=9x+5. The answer would be x=7. Please mark me Brainleist

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part of the river she observed fell 1.68 millimeters per year for 1.5 years. Use the distributive property to calculate the exac

Alecsey [184]

1.68 mm per year for 1.5 years could be rewritten as
(2.00-0.32) mm per year for 1.5 yrs.

Multiply: (1.5 yrs)(2.00-0.32)(mm/yr) = 3 mm + 0.48 mm = 3.48 mm

This approach makes use of the distributive property of multiplication.

8 0

4 years ago

?????????????????????????????

sergeinik [125]

Answer:

B. 3

Step-by-step explanation:

If you were to multiply the top equation by 3 then the x value for the first equation would be 6 and since the bottom equation's x value is -6, if you were to add them, they would cancel eachother off.

LOL hope this makes sense :) Please give brainliest!! Thanks!!

4 0

3 years ago

Bree had 52 pens scattered on her desk.She wanted to organize them.

ziro4ka [17]

Answer: The operation is “division” and the answer is “13 pens in each”.
Explanation: 52 divided by 4 = 13

7 0

3 years ago

Margie's work for adding linear expressions is shown below. After checking her answer with the answer key, she solved it incorre

xxMikexx [17]

The correct form of expression after solving the errors is :

-5.83b + 24

Given Margie's work for adding linear expressions are:

the expression is (−1.56b + 10) − (4.27b − 14)

step 1: −1.56b + 10 + (−4.27b) + 14

In the first step of margie, she did not used the proper method of opening the brackets.

The negative sign is used to multiply the terms inside the brackets.

so the correct step is:

step 1: -1.56b + 10 - 4.27b + 14

in the next step arrange the variables and constants.

step 2 : -1.56b - 4.27b +10 + 14

next add the variables and the constants:

step 3: (-1.56b - 4.27b) +(10 + 14)

step 4: -5.83b + 24

Hence we get the required results.

Learn more about Solving expressions here:

brainly.com/question/723406

#SPJ1

5 0

1 year ago

The endpoints of line RS are R(1, -3) and S(4,2). Find RS

laila [671]

Answer:

Part 1) $RS=\sqrt{34}\ units$

Part 2) $CD=\sqrt{125}\ units$

Part 3) The coordinates of endpoint C are (13,5)

Step-by-step explanation:

Part 1) The endpoints of line RS are R(1, -3) and S(4,2). Find RS

we now that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$RS=\sqrt{(2+3)^{2}+(4-1)^{2}}$

$RS=\sqrt{(5)^{2}+(3)^{2}}$

$RS=\sqrt{34}\ units$

Part 2) The endpoints of line CD are C(-8,-1) and D(2,4). Find CD

we now that

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$CD=\sqrt{(4+1)^{2}+(2+8)^{2}}$

$CD=\sqrt{(5)^{2}+(10)^{2}}$

$CD=\sqrt{125}\ units$

Part 3) The midpoint of line AC is M(5,6). One endpoint is A(-3,7). Find the coordinates of endpoint C

The formula to calculate the midpoint between two points is equal to

$M=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

Let

(x2,y2)-------> the coordinates of point C

(x1,y1) -------> the coordinates of point A

substitute the given values

$(5,6)=(\frac{-3+x2}{2},\frac{7+y2}{2})$

write the equations

$\frac{-3+x2}{2}=5\\ \\-3+x2=10\\ \\ x2=10+3\\ \\x2=13$

$\frac{7+y2}{2}=6\\\\ 7+y2=12\\ \\ y2=12-7\\ \\y2=5$

therefore

The coordinates of endpoint C are (13,5)

7 0

3 years ago

Hello I need help with this question​

Hello I need help with this question