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2 years ago

FAST PLEASE!! Emma weighs half as much as Sonya. Sonya weighs 120 pounds. How much

Mathematics

1 answer:

Andrew [12]2 years ago

3 0

Answer:

I think it would be 120

Step-by-step explanation:

You add 120+120 and it would equal 240. Then 240 dived by 2 which will equal 120.

(120 + 120)= 240 dived by 2= 120 I might be wrong

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I need help fast please answer!

frez [133]

Answer:

Step-by-step explanation:

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3 years ago

How do I solve this? It says solve each right angle and then to round answers to the nearest tenth.

mariarad [96]

Answer:

19.2

Step-by-step explanation:

Add 12 squared to 15 squared(144+225)

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3 years ago

If neither a nor b are equal to zero, which answer most accurately describes the product of (a + bi)(a - bi)?

Scrat [10]

Answer: the correct option is

(D) The imaginary part is zero.

Step-by-step explanation: Given that neither a nor b are equal to zero.

We are to select the correct statement that accurately describes the following product :

$P=(a+bi)(a-bi)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

We will be using the following formula :

$(x+y)(x-y)=x^2-y^2.$

From product (i), we get

$P\\\\=(a+bi)(a-bi)\\\\=a^2-(bi)^2\\\\=a^2-b^2i^2\\\\=a^2-b^2\times (-1)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~[\textup{since }i^2=-1]\\\\=a^2+b^2.$

So, there is no imaginary part in the given product.

Thus, the correct option is

(D) The imaginary part is zero.

3 0

2 years ago

Find the value -2/3÷ 4/6. <br> A -1<br> B 4/9<br> C -9/4<br> D 1

Allushta [10]

Answer should be -1

4 0

2 years ago

Read 2 more answers

PLEASE HELP ME this is really hard please

krok68 [10]

Answer:

1100

2200

Step-by-step explanation:

Since speed is constant, the distance is proportional to the time. We notice that the number in the second column is 1650/3 = 550 times the number in the first column, so the two missing numbers are ...

2 × 550 = 1100

4 × 550 = 2200

7 0

3 years ago