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Sidana [21]
3 years ago
13

Marla has $20 to spend on a bed for her dog. The bed she likes is priced at $18.50, and the sales tax is 6%. Does Marla have eno

ugh money for the total cost of the bed? Explain your reasoning.
Mathematics
1 answer:
konstantin123 [22]3 years ago
5 0
Yes, because 6% tax of $18.50 is $1.11 and if you add the tax to the amount of the bed the total cost will be $19.61
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What is the equation of the line that passes through the point (-5,3)(−5,3) and has a slope of fraction -6/5
Allushta [10]

Answer:

Step-by-step explanation:

Use the point-slope formula.

y - y_1 = m(x - x_1)  when :     x_1 = -5  and    y_1 =3 and   m= -6/5

the equation :   y - 3 = -6/5(x +5)

5 0
3 years ago
9.<br> The cost of 20 litres of petrol is £18<br> Work out the cost of 1 litre of petrol.
yulyashka [42]

Answer:

20 x 1 / 18= 1.11

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Translate the following sentence into an equation. The quotient of a number and -2, less 10, is -18. Giving brainliest
Molodets [167]

Answer:

x/2-10=18

Step-by-step explanation:

8 0
2 years ago
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Look at the pictures pleaseeeeee
Alex

Answer:

Step-by-step explanation:

There is missing information in the task: HD║FG !!!!!

∠HDE ≅ ∠FGE and ∠EHD ≅ ∠EFG

<u><em>ΔEHG ~ ΔEFG</em></u> (AAA theorem of similarity)

m∠F = 22°

m∠G = 89°

3 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
3 years ago
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