All categories

3 years ago

PLZZZ HEPPPPPP IN MATHHHH

Mathematics

2 answers:

Troyanec [42]3 years ago

8 0

55.15 (t) 55.2 (t) 54.34 (t) 52.08 =216.95

katrin [286]3 years ago

5 0

55.15 (t) 55.2 (t) 54.34 (t) 52.08 =216.95

You might be interested in

Y - 4= 7(x - 6)<br> x-intercept<br> y-intercept

denpristay [2]

Answer:

x-intercept: (38/7,0) y-intercept: (0,-38)

Step-by-step explanation:

I think

7 0

3 years ago

Factor:

nekit [7.7K]

Answer:

a) $(7\cdot m^{6}+4)\cdot (7\cdot m^{6}-4)$

b) $(7\cdot a\cdot b^{8}+1)\cdot (7\cdot a\cdot b^{8}-1)$

c) $a = 0.7\cdot t^{9}$

d) There are two possible answers only considering real coefficients:

(i) $16\cdot x^{2}-81 = (4\cdot x +9)\cdot (4\cdot x - 9)$

(ii) $14\cdot x^{2}-81 =(\sqrt{14}\cdot x+9)\cdot (\sqrt{14}\cdot x - 9)$

e) $(a^{3}+4)\cdot (a^{3}-4)$

Step-by-step explanation:

Now we proceed to solve each algebraic equation:

a) Factor $49\cdot m^{12}-16$

This binomial is of the form $a^{2}-b^{2} = (a+b)\cdot (a-b)$ . In this case, we can rewrite and factor the equation below:

$49\cdot m ^{12}-16$

$(7\cdot m^{6})^ 2-4^{2}$

$(7\cdot m^{6}+4)\cdot (7\cdot m^{6}-4)$

b) Factor $49\cdot a^{2}\cdot b^{16}-1$

This binomial is of the form $a^{2}-b^{2} = (a+b)\cdot (a-b)$ . In this case, we can rewrite and factor the equation below:

$49\cdot a^{2}\cdot b^{16}-1$

$(7\cdot a\cdot b^{8})^{2}-1^{2}$

$(7\cdot a\cdot b^{8}+1)\cdot (7\cdot a\cdot b^{8}-1)$

c) Nicole is factoring $0.49\cdot t^{18}-25$ by using the rule $a^{2}-b^{2} = (a+b)\cdot (a-b)$ . What will she use for the value of $a$ ?

From this rule we find that $a^{2} = 0.49\cdot t^{18}$ , that is:

$a^{2} = 0.49\cdot t^{18}$

$a^{2} = \frac{49}{100}\cdot t^{18}$

$a = \frac{7}{10}\cdot t^{9}$

$a = 0.7\cdot t^{9}$

d) Which binomial is a difference of squares?

A binomial is a difference of square if and only if $a^{2}-b^{2} = (a+b)\cdot (a-b)$ . There are two possible answers only considering real coefficients:

(i) $16\cdot x^{2}-81 = (4\cdot x +9)\cdot (4\cdot x - 9)$

(ii) $14\cdot x^{2}-81 =(\sqrt{14}\cdot x+9)\cdot (\sqrt{14}\cdot x - 9)$

e) Factor $a^{6}-16$

This binomial is of the form $a^{2}-b^{2} = (a+b)\cdot (a-b)$ . In this case, we can rewrite and factor the equation below:

$a^{6}-16$

$(a^{3})^{2}-4^{2}$

$(a^{3}+4)\cdot (a^{3}-4)$

6 0

2 years ago

Out of 3 Cad-bury chocolates and 2 Kitkat bars, if one is picked at random, what is the probability that it will be a kitkat?

Zanzabum

Answer:

2/5

Step-by-step explanation:

3+2 = 5

2 kitkats, 5 total chocolates, 2/5

hope this helps.

8 0

3 years ago

Read 2 more answers

The 9th term of an arithmetic sequence is 29 and the 27th term is 83 find a and d

bixtya [17]

Answer:

Hope you understand

a=5 and d=3

4 0

3 years ago

What is the amount of sales tax owed on a $39 jacket if the tax rate is 5%?

mash [69]

Letter c is the answer

8 0

3 years ago