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3 years ago

Brainliest to whoever gets it right please answer the picture.

Mathematics

1 answer:

sesenic [268]3 years ago

5 0

Answer:

Commutative property of multiplcation.

Step-by-step explanation:

An identifier for the property of multiplcation is by multiplying it by 1. Therefore the answer remains the same.

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Find the equation of the line specified.

OLga [1]

The point slope form of a straight line is y-y1 = m(x-x1)

y -(-3) = -7(x-5)

y + 3 = -7(x-5)

y = -7x + 35 - 3

y = -7x + 32

7 0

3 years ago

This is the longest side of a right triangle. It is also the side directly across from the 90-degree angle of a right triangle.

muminat

Answer:

hypotenuse

Step-by-step explanation:

the other sides are known as legs

7 0

3 years ago

What is the volume in cubic units of a cube with a side length of 1/2 unit?

malfutka [58]

Answer:

1/8

Step-by-step explanation:

$\frac{1}{2}^3 = \frac{1^3}{2^3} = \frac{1}{8}$

3 0

3 years ago

Read 2 more answers

A lab is testing the amount of a certain active chemical compound in a particular drug that has been recently developed. The man

Mazyrski [523]

Answer:

The 95% confidence interval is "87.94, 91.86".

Step-by-step explanation:

The given values are:

Sample batches,

n = 25

Sample mean concentration,

$\bar{x}$ = 89.9 mg

Amount of chemical,

σ = 5

α = 0.05

The critical value from Z table will be:

= $Z(\frac{\alpha}{2} )$

= $Z(\frac{0.05}{2} )$

= $1.96$

Now,

The confidence interval will be:

= $\bar{x} \pm Z(\frac{\alpha}{2} )\times \frac{\sigma}{\sqrt{n} }$

On substituting the values, we get

= $89.9 \pm Z(\frac{0.05}{2})\times \frac{5}{\sqrt{25}}$

= $89.9 \pm Z(\frac{0.05}{2})\times \frac{5}{5}$

= $89.9 \pm1.96\times 1$

Lower limit will be:

= $89.9 -1.96\times 1$

= $87.94$

Upper limit will be:

= $89.9 +1.96\times 1$

= $91.86$

7 0

3 years ago

1.6 m<br>2 m<br>4 m <br>area of a shape

Natasha_Volkova [10]

Answer:

the area is 8 square m

Step-by-step explanation:

4 x 2 = 8

3 0

3 years ago