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2 years ago

Can I please have some help!!!!!!!!!

Mathematics

1 answer:

nasty-shy [4]2 years ago

5 0

I tried and I got 10 idk if that will help

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3. Tareq pays $22.10 for 6 pounds of salmon. What is the price of the salmon?

Nitella [24]

Answer: $3.68

Step-by-step explanation:

22.10 divided by 6 is 3.6833333 repeating. round it to $3.68

3 0

3 years ago

Do the lengths 60,80,100 form a right triangle

Lapatulllka [165]

Answer:

100 Sq. =80 SQ. +60 SQ.

10000=6400+3600

10000=10000

yes,given length can form right angle triangle.

6 0

3 years ago

Convert,the complex number into polar form: 4+4i

kow [346]

Z = a + bi
z = 4 + 4i

r² = a² + b²
r² = (4)² + (4)²
r² = 16 + 16
r² = 32
r = 4√(2)
r = 4(1.414)
r = 5.656

$cos\theta = \frac{a}{r}$
$cos\theta = \frac{4}{4\sqrt{2}}$
$cos\theta = \frac{4}{4\sqrt{2}} * \frac{\sqrt{2}}{\sqrt{2}}$
$cos\theta = \frac{4\sqrt{2}}{4\sqrt{4}}$
$cos\theta = \frac{4\sqrt{2}}{4(2)}$
$cos\theta = \frac{4\sqrt{2}}{8}$
$cos\theta = \frac{\sqrt{2}}{2}$
$2(cos\theta) = 2(\frac{\sqrt{2}}{2})$
$2cos\theta = \sqrt{2}$
$2cos\theta = 1.414$

$sin\theta = \frac{b}{r}$
$sin\theta = \frac{4}{4\sqrt{2}}$
$sin\theta = \frac{4}{4\sqrt{2}} * \frac{\sqrt{2}}{\sqrt{2}}$
$sin\theta = \frac{4\sqrt{2}}{4\sqrt{4}}$
$sin\theta = \frac{4\sqrt{2}}{4(2)}$
$sin\theta = \frac{4\sqrt{2}}{8}$
$sin\theta = \frac{\sqrt{2}}{2}$
$2(sin\theta) = 2(\frac{\sqrt{2}}{2})$
$2sin\theta = \sqrt{2}$
$2sin\theta = 1.414$

z = a + bi
z = rcosθ + (rsinθ)i
z = r(cosθ + i sinθ)

z = 4 + 4i
z = 5.656cosθ + (5.656sinθ)i
z = 5.656(cosθ + i sinθ)
z = 5.656(cos45 + i sin45)

$\theta = tan^{-1}\frac{b}{a}$
$\theta = tan^{-1}\frac{4}{4}$
$\theta = tan^{-1}(1)$
$\theta = 45$

The polar form of 4 + 4i is approximately equal to 5.656(cos45 + i sin45).

5 0

2 years ago

PLEASE HELP ASAP WILL DO BRAINLIEST!!!!!!! Part A: Three equations that all represent the same function f are shown. Select the

Serga [27]

Answer:

A: f(x)=2x^2 +12x +10

B: f(0) = 10

Step-by-step explanation:

Part A:

f(0) is a constant in the equation if the form is such that for x=0, all terms are zero except one of them. Standard form is one such form. This is the equation in standard form:

f(x) = 2x^2 +12x +10

Part B:

f(0) = 0 + 0 + 10

f(0) = 10

7 0

3 years ago

What is the value of Y?

emmasim [6.3K]

Answer:

y = 12

Step-by-step explanation:

60° = 5y°

y = 60°/5

y = 12

6 0

2 years ago