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3 years ago

Caitlyn did 6/7 of the math quiz

Mathematics

1 answer:

lord [1]3 years ago

6 0

What is this supposed to mean?

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Can someone help me please i dont have a lot of time! Thank you!

dusya [7]

Answer:

Step-by-step explanation:

11(143) = 11(100 + 40 + 3)

= 11(100) + 11(40) + 11(3)

9(821) = 9(800 + 20 + 1)

= 9(800) + 9(20) + 9(1)

3(937) = 3(900 + 30 + 7)

= 3(900) + 3(30) + 3(7)

6(342) = 6(300 + 40 + 2)

= 6(300) + 6(40) + 6(2)

5(209) = 5(200 + 0 + 9)

= 5(200) + 5(0) + 5(9)

5 0

3 years ago

I need to solve for y in -19 = y + 6

olga2289 [7]

Your answer is y=-25

8 0

3 years ago

Read 2 more answers

Marshall can make 6 necklaces every hour. Yolanda can make 3 times that many every hour. How many hours would it take them to ma

SCORPION-xisa [38]

Marshall- 8 hours because 8•6=48
Yolanda- 3 hours because 6•3=18
18•2= 36 18•3=54

3 0

3 years ago

The coordinates of rhombus ABCD are A(–4, –2), B(–2, 6), C(6, 8), and D(4, 0). What is the area of the rhombus? Round to the nea

Gekata [30.6K]

Answer:

Brainleist!!!!

Step-by-step explanation:

First calculate the distance between B and D, A and C.

We have the distance between B and D will be: sqrt[(x2-x1)^2+(y2-y1)^2] = 8.5

The distance between A and C will be: 14.14

We have the area of rhombus: 1/2 * 8.5 * 14.14 = 60 square units.

5 0

3 years ago

Read 2 more answers

1. The structure of the supports for the hill consists of steel beams that

Darina [25.2K]

a) Parallel for both line segments have the same slope = -5/4

b) 55º

Step-by-step explanation:

a) To verify the parallelism of these line segments, It's necessary to find the slope of each one. Parallel lines share the same slope value:

$m_{BC}=\frac{0-150}{120-0}=-\frac{-5}{4}\\m_{AD}=\frac{0-125}{100-0}=-\frac{5}{4}$

b) If ∠DAB = 125°, what is the measure of ∠CBA? Justify your reasoning.

Those beams do not form a parallelogram because:

Using the formula of distance between those points

$d=\sqrt{(y_{2}-y_1)^{2}-(x_{2}-x_{1})^2$

$\overline {AB}=25\: \: \: \overline{CD}=20\: \: \overline{AD}=160 \: \: \overline{BC}=192$

So this is a trapezoid. And two adjacent angles within a trapezoid are supplementary, so If ∠DAB = 125º then 180 - ∠CBA=55º

3 0

3 years ago