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4 years ago

And aquarium tank hold 169 gallons of water. How much is this in meters? Use the following conversion: 1 gallon is 3.8 m.

Mathematics

1 answer:

Mkey [24]4 years ago

5 0

642.2 is the answer if you multiply 3.8x169

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Eva is solving the equation 4(x+32)=8

Luba_88 [7]

Answer:

The correct answer is -30

Step-by-step explanation:

4(x+32)=8 basically you multiply 4 times the numbers that are in the parentesis which that will equals to 4x+128 because 4x1= 4x and 4x32 = 128. then you subtract 128 from 8 which equals to -120. you divide -120 by 4 which equals to -30.

8 0

3 years ago

Write the equation of an ellipse with center (-2,-3), vertical major axis of length 14, and minor axis of

Tems11 [23]

Step-by-step explanation:

Since we have a vertical major axis, our ellipse is vertical.

The equation of a vertical ellipse is

$\frac{(y - k) {}^{2} }{ {a}^{2} } + \frac{(x - h) {}^{2} }{ {b}^{2} } = 1$

where

(h,k) is the center

a is the semi major axis,

b is the semi minor axis

First, let plug in our center

$\frac{(y + 3) {}^{2} }{ {a}^{2} } + \frac{(x + 2) {}^{2} }{ {b}^{2} } = 1$

Semi means half, so

a is half of 14 which is 7

B is half of 8, which is 4.

$\frac{(y + 3) {}^{2} }{49} + \frac{(x + 2) {}^{2} }{16} = 1$

5 0

2 years ago

Which model represents the factors of 4x2 – 9?

klasskru [66]

Answer:

-1

Step-by-step explanation:

BODMAS

4x2=8

8-9=(impossible)

9-8= -1

NB:8 was smaller to 9 so we switched but the answer becomes nehative

6 0

3 years ago

Read 2 more answers

Find the possible values of the constant k if the roots of the quadratic equation

Anastasy [175]

Answer:

${b}^{2} - 4ac = 0 \\ { ( - k - 2)}^{2} - 4(1)(4) = 0\\ {k}^{2} + 4k + 4 - 4 = 0 \\ {k}^{2} + 4k = 0 \\ k(k + 4) = 0 \\ \therefore \: k = 0 \: or \: k = - 4$

5 0

3 years ago

What is -4 3/10 - 8 3/10

nadya68 [22]

Answer:

-12 3/5

Step-by-step explanation:

-4 3/10 - 8 3/10

The signs are the same so we add and then take the sign

4 3/10 + 8 3/10

Add the whole numbers

4+8 = 12

Add the fractions

3/10 + 3/10 = 6/10

Simplify the fraction

6/10 = 3/5

Put them together

12 3/5

Add the sign

-12 3/5

4 0

3 years ago

Read 2 more answers