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3 years ago

Can someone help me with this?

Mathematics

1 answer:

kaheart [24]3 years ago

3 0

Answer:

D. 63 degrees

Step-by-step explanation:

For the first answer

Cos B = 0.45

tan60 = √3

= 60° = arctan √3

Cos B = 0.45

B = 63°

Thus B = arc cos 0.45 = 63°

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Timed please help added picture

DaniilM [7]

Answer:

$\sqrt[4]{2}^{3}$

Step-by-step explanation:

7 0

3 years ago

Find the product and fill in the blanks to write in standard complex number form

k0ka [10]

X^2 +2x +10 = 0

D = 4 -40 = - 36

x_1,2 = (-2 +/- sqrt(-36))/2 = (-2 +/- 6i)/2 = 2(-1 +/- 3i)/2 = -1 +/- 3i

x_1,2 = -1 +/- 3i or more understandably

x_1 = -1 -3i and x_2 = -1 +3i

hope this will help you

3 0

3 years ago

Square root of 129 is greater than, less than or equal to 95/8?

Tanzania [10]

√129 is less than $\frac{95}{8}$ .

$\large\mathfrak{{\pmb{\underline{\purple{Step-by-step\:explanation}}{\purple{:}}}}}$

Let us first solve for √129.

➝ $\:\sqrt{129}$

➝ $\:11.3578$

Now,

➝ $\: \frac{95}{8}$

➝ $\:11.875$

Clearly,

➵ $\:11.3578 < 11.875$

➵ $\: \sqrt{129} < \frac{95}{8}$

Hence, √129 is less than $\frac{95}{8}$ .

$\red{\large\qquad \qquad \underline{ \pmb{{ \mathbb{ \maltese \: \: Mystique35☂}}}}}$

5 0

3 years ago

The velocity-time graph for a cycle is shown

malfutka [58]

Answer:

a) 100m

b) 2m/s

Step-by-step explanation:

a)==>> 2+4+6+8+10(8) = 100m

b)==>> Variable "a" = change OVER time ( $\frac{change}{time}$ ) = 8m/4s = 2m/s

5 0

3 years ago

10 points

Archy [21]

Answer:

16 books fit and theres .8 inches left

Step-by-step explanation:

16x2.2 = 35.2

36 - 35.2 + 0.8

7 0

3 years ago

Read 2 more answers