3 years ago

What is the measure of angle B ?

Mathematics

1 answer:

alisha [4.7K]3 years ago

8 0

soh cah toa

cos (B) = 3/(3sqrt(2))

B = cos ^-1(3/(3sqrt(2)))

B = 45 degrees

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If √7 = 2.646, find without using calculator, the value of √0.0007

Varvara68 [4.7K]

Answer:

√0.0007 = 0.02646

Step-by-step explanation:

We know that:

√7 = 2.646

We want to find the value of:

√0.0007

Also we know the relations:

$\frac{\sqrt{x} }{\sqrt{y} } = \sqrt{\frac{x}{y} }$

Then:

$\sqrt{0.0007} = \sqrt{\frac{7}{10,000} }$

We can rewrite this as:

$\sqrt{\frac{7}{10,000} } = \frac{\sqrt{7} }{\sqrt{10,000} } = \frac{2.646}{100} = 0.02646$

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3 years ago

Pls answer this 5 and _____ are reciprocal numbers.

Jet001 [13]

Answer:

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Step-by-step explanation:

Reciprocal just means flipped you can put any whole number over 1 if it helps to see that

5/1 = 5

Since reciprocal is asking you to flip 5/1 meaning numerator becomes denominator and vice versa you end up with 1/5 being the reciprocal of 5

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3 years ago

(4x³-4+7x)-(2x³-x-8)

Ket [755]

(4x³-4+7x)-(2x³-x-8) = 4x³-4+7x - 2x³ + x+8 = (4x³-2x³) + (7x+x) -4+8 =

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(4x³-4+7x)-(2x³-x-8) = 2x³ + 8x +4

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3 years ago

A jewelry box is shaped like a cube each edge of the jewelry box measures 8 inches what is the volume of the jewelry box ?

tensa zangetsu [6.8K]

Answer:

512

Step-by-step explanation:

the formula is V=x to the 3rd power

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A biologist studied the populations of black bear and brown bears over a 10-year period. The biologist modeled the populations,

Firlakuza [10]

The equation would be Black + brown

(2.3x^2 - 5.6x + 2.3) + (2.4x^2 + 7.2x + 0.97)

combine all like terms:

4.7x^2+1.6x+3.27

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4 years ago