4 years ago

Use the multiplication properties to determine what number is missing

Mathematics

2 answers:

marshall27 [118]4 years ago

5 0

Just multiply till u find your number than multiply by how much you had to multiply to find your number

Sunny_sXe [5.5K]4 years ago

3 0

(23• 16)-(16•23) It will be the exact if you were to subtract.

You might be interested in

Niobium-91 has a half-life of 680 years. After 2,040 years, how much niobium-91 will remain from a 300. 0-g sample? 3 g 18. 75 g

alekssr [168]

Answer:

Amount of Niobium-91 initially

= 300/91 =3.2967mol

2040 years = 3 ×680 = 3 half-lives

therefore, amount left = 0.4121mol

mass of Niobium-91 remaining = 0.4121 ×91 =37.5g

Please give brainliest

8 0

2 years ago

A chord is 10cm from the centre of a circle of radius 15cm. Find the length of the chord.

almond37 [142]

Answer: 21.44 cm

Step-by-step explanation:

Given

Radius r=15 cm

distance of chord from the center is 10 cm

From the figure, the length of the chord is AC

Applying Pythagoras

$\Rightarrow AO^2=OB^2+AB^2\\\Rightarrow AB^2=15^2-10^2\\\Rightarrow AB^2=225-100=115\\\Rightarrow AB=\sqrt{115}=10.72\ cm$

The length of the chord is $AC=2AB=21.44\ cm$

5 0

3 years ago

Find the slope given 2 points: (-2, 1) and (-1,7)

Strike441 [17]

Answer:

- 1,7

Step-by-step explanation:

but not sure on this if wrong so sorry

7 0

4 years ago

Solve 2x2 - 6x = -8.

erma4kov [3.2K]

Answer:

x=2

Step-by-step explanation:

8 0

3 years ago

What is the value of the expression 6+18 % 3x4

natka813 [3]

You tell me buddy :)

3 0

4 years ago