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3 years ago

Help me please.......

Mathematics

1 answer:

BlackZzzverrR [31]3 years ago

5 0

Answer:

Question 1:

Vertex: (2,-3)

Y-Intercepts: (0,5)

Axis of Symmetry: x=2

I'm not that good at this kind of math and right now im tired, so sorry.

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I will give you brainliest

mezya [45]

Answer:

360 = 2(2w+76)

Step-by-step explanation:

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3 years ago

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Thermometer A shows the temperature in the morning. Thermometer B shows the temperature in the evening. What is the difference i

Evgesh-ka [11]

Answer:

(Thermometer B reading - Thermometer A reading)

Step-by-step explanation:

The thermometer reading aren't given in the question.

However, hypothetically.

The difference between two temperature values (morning and evening values) would be :

Temperature in the evening - morning temperature

Therefore,

If ;

Thermometer A reading = morning temperature

Thermometer B reading = evening temperature

Difference in the temperature :

(Thermometer B reading - Thermometer A reading)

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3 years ago

Calculate an estimate of a square root of 119 + 120i

uysha [10]

Answer:

Step-by-step explanation:

Given

z=119+120 i

Let $\sqrt{119+120 i}=p+iq$

Squaring both sides

$119+120 i=p^2-q^2+2ipq$

Comparing real and imaginary part

Re(LHS)=Re(RHS)

$119=p^2-q^2$ -----------1

comparing Im(LHS)=Im(RHS)

120=2pq

$q=\frac{60}{p}$

Substitute q in 1

$119=p^2-(\frac{60}{p})^2$

$p^4-119p^2-(68)^2=0$

Let $x=p^2$

$x^2-119x-4624=0$

$x=frac{119\pm \sqrt{119^2+4\times 4624}}{2}$

$x=\frac{119\pm 180.71}{2}$

we take only Positive value because $p^2=x$

x=149.85

$p^2=149.85$

thus $p=\pm 12.24$

$q=\mp 4.90$

thus $\sqrt{119+120 i}=\pm (12.24+i 4.90)$

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4 years ago

First gets brainliest! Simplify into scientific notation: <img src="https://tex.z-dn.net/?f=%282.45x%2A10%5E3%29%2B%281.23%2A10%

galben [10]

Answer: 2462.3x

Step-by-step explanation:

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3 years ago

The two parallel sides of a trapezium are 19.8 and 7.2 and its area is 135 cm²..find its height

Virty [35]

Answer:

10cm

Step-by-step explanation:

the formula for an area of a trapezium:

$\frac{(a + b) \times h}{2} = area$

where a and b are the parallel sides and h is the height. equating what we have:

$\frac{(19.8 + 7.2) \times h}{2} = 135$

simplify the numerator by adding 19.8 and 7.2=27

$\frac{27h}{2} = 135$

multiply both sides by 2

$27h = 270$

divide both sides by 27

$h = \frac{270}{27} = 10$

the height is 10cm

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3 years ago