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3 years ago

Who is correct? Bobby or Betty

Mathematics

1 answer:

scZoUnD [109]3 years ago

3 0

Answer:

I think Betty is correct

Step-by-step explanation:

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Emily and Fred each have some money.

Crank

Answer

Assalam waliakum

8 0

3 years ago

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Perform the multiplication, (7x2+a2)(x2–3a2)

aksik [14]

Answer:

The given multiplied expression is

$(7x^2+a^2)(x^2-3a^2)=7x^4-20x^2a^2-3a^4$

Step-by-step explanation:

Given expression is $(7x^2+a^2)(x^2-3a^2)$

To find the multiplication of the given expression :

$(7x^2+a^2)(x^2-3a^2)$

By using the distributive property to solve the given expression as below

$(7x^2+a^2)(x^2-3a^2)=(7x^2)(x^2)+(7x^2)(-3a^2)+(a^2)(x^2)+(a^2)(-3a^2)$

$=7x^2.x^2-21x^2a^2+a^2x^2-3a^2.a^2$

$=7x^{2+2}-21x^2a^2+a^2x^2-3a^{2+2}$ ( by using the property $a^m.a^n=a^{m+n}$ )

$=7x^4-21x^2a^2+a^2x^2-3a^4$

Adding the like terms in the above expression we get

$=7x^4-20x^2a^2-3a^4$

Therefore $(7x^2+a^2)(x^2-3a^2)=7x^4-20x^2a^2-3a^4$

Therefore the given multiplied expression is

$(7x^2+a^2)(x^2-3a^2)=7x^4-20x^2a^2-3a^4$

8 0

3 years ago

Given the functions, f(x) = x2 + 2 and g(x) = 4x - 1, perform the indicated operation. When applicable, state the domain restric

Naya [18.7K]

Answer:

3rd option

Step-by-step explanation:

substitute x = f(x) into g(x)

g(f(x))

= g(x² + 2)

= 4(x² + 2) - 1

= 4x² + 8 - 1

= 4x² + 7

5 0

2 years ago

Jack was 8 years older than pricillla. Together their ages totaled 166. what are their ages

mylen [45]

The answer is 58 I think 166-8= 158

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3 years ago

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PLEASE HELP ASAP!! You used your new smart watch to record your heart rate every morning for 15 days. Select the dot plot that r

Artyom0805 [142]

The dot-plot for the data is sketched at the end of this answer.

--------------------------

The dot plot shows the number of times each measure appears in the data-set.

68 appears once, thus it is 1 in the dot-plot.
69 appears three times, thus it is 3 in the dot-plot.

70 appears once, thus it is 1 in the dot-plot.
71 does not appears, so it is 0.

72 appears once, thus it is 1 in the dot-plot.
73 appears five times, so it is 5 in the dot-plot.

74 appears once, thus it is 1 in the dot-plot.

75 does not appears, so it is 0.
76 appears twice, thus it is 2.
77 appears once, so it is 1.

The sketch is given at the end of this answer.

A similar problem is given at brainly.com/question/24908406

8 0

2 years ago