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BlackZzzverrR [31]
3 years ago
7

What is the product of −2 1/4 and −4 1/2 ?

Mathematics
1 answer:
frozen [14]3 years ago
4 0
To multiply fracti0ons, we need to convert them to improper fractions:

-2 1/4 = -9/4
-4 1/2 = -9/2

Now, lets multiply:

-9/4 * -9/2 = 81/8

Hope this helps!

Take note that the answer is positive because when multiplying, two negatives make a positive.

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If square + circle= triangle then triangle - square =? And how do you know the answer is correct?
EastWind [94]

Answer:

Circle

Step-by-step explanation:

if square plus circle is triangle then if you subtract a square from it all you have left is a circle

7 0
3 years ago
Factor the polynomial 25p squared - 144
castortr0y [4]
(5p+12) (5p-12) i hope this helps
3 0
3 years ago
Read 2 more answers
A biology test is worth 100 points and has 36 questions.
Ad libitum [116K]

Answer:

(a) 7 essays and 29 multiple questions

(b) Your friend is incorrect

Step-by-step explanation:

Represent multiple choice with M and essay with E.

So:

M + E= 36 --- Number of questions

2M + 6E = 100 --- Points

Solving (a): Number of question of each type.

Make E the subject of formula in M + E= 36

E = 36 - M

Substitute 36 - M for E in 2M + 6E = 100

2M + 6(36 - M) = 100

2M + 216 - 6M = 100

Collect Like Terms

2M - 6M = 100 - 216

-4M = - 116

Divide both sides by -4

M = \frac{-116}{-4}

M = 29

Substitute 29 for M in E = 36 - M

E = 36 - 29

E = 7

Solving (b): Can the multiple questions worth 4 points each?

It is not possible.

See explanation.

If multiple question worth 4 points each, then

2M + 6E = 100 would be:

4M + xE = 100

Where x represents the number of points for essay questions.

Substitute 7 for E and 29 for M.

4 * 29 + x * 7 = 100

116 + 7x = 100

Subtract 116 from both sides

116-116 + 7x = 100 -116

7x = 100-116

7x = -16

Make x the subject

x = -\frac{16}{7}

Since the essay question can not have worth negative points.

Then, it is impossible to have the multiple questions worth 4 points

<em>Your friend is incorrect.</em>

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2 years ago
ANSWER PLEASE! 10 POINTS!! Dad says to pick a number from 1 to 100, and the
Kay [80]
Answer: 52/100 thank my beautiful sister for the answer
7 0
3 years ago
512, 256, 128, 64, __, __, __, ...​
Cerrena [4.2K]

The complete pattern is: 512, 256, 128, 64, 32, 16, 8, ( and extended ) 4, 2, 1!

I do this pattern in my head literally all the time!

4 0
3 years ago
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