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3 years ago

How do you do this? I'm so confused

Mathematics

2 answers:

leonid [27]3 years ago

8 0

You could download photomath and it will tell you the answer

zepelin [54]3 years ago

7 0

There are lots of videos on YouTube on how to do it I’m not completely sure so I don’t want to tell you something false

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Find the product. (3p – 7)(3p + 7)

hram777 [196]

(3p - 7)(3p + 7) =
(3p × 3p) + (3p × 7) + (-7 × 3p) + (-7 × 7) =
9p^2 + 21p - 21p - 49
= 9p^2 - 49

Therefore, answer would be D.

8 0

3 years ago

Read 2 more answers

What is the volume of the figure

Law Incorporation [45]

Answer:

5,376in^3

Step-by-step explanation:

find the volume of the smaller box first

10×4×12 = 480in^3

find volume of bigger box

17×12×24 = 4,896in^3

add both volumes 4,896 +480 = 5,376in^3

3 0

3 years ago

Read 2 more answers

lily, safia and manjit have 24 marbles altogether. manjit has the same number of marbles as lily and safia together. lily has 5

densk [106]

Answer:

Step-by-step explanation:

M = (L + S)

24/2 = 12

12-5 =7

L:5

S:7

7+5 = 12 (Manjit)

12+12= 24

7 0

2 years ago

Read 2 more answers

Which is equivalent to 64^1/4? 2^4√4 4 16 16^4√4

zalisa [80]

Answer:

Step-by-step explanation:

$64^1/4\\\\=\dfrac{64^{1}}{4} \\\\=\dfrac{64}{4} \\\\=16\\\\Answer\ C$

7 0

3 years ago

5. 3x + 5y + 5z =1 x - 2y = 5 2x + 4y = 11

lilavasa [31]

Answer:

see explanation

Step-by-step explanation:

Given the 3 equations

3x + 5y + 5z = 1 → (1)

x - 2y = 5 → (2)

2x + 4y = 11 → (3)

Use (2) and (3) to solve for x and y

Multiply (2) by 2

2x - 4y = 10 → (4)

Add (3) and (4) term by term

4x = 21 ( divide both sides by 4 )

x = $\frac{21}{4\\}$

Substitute this value of x into (3)

2 × $\frac{21}{4\\}$ + 4y = 11

$\frac{21}{2\\}$ + 4y = 11 ( subtract $\frac{21}{2\\}$ from both sides )

4y = $\frac{1}{2}$ ( divide both sides by 4 )

y = $\frac{1}{8\\}$

Substitute the values of x and y into (1) and solve for z

3 × $\frac{21}{4\\}$ + 5 × $\frac{1}{8\\}$ + 5z = 1

$\frac{63}{4}$ + $\frac{5}{8}$ + 5z = 1

$\frac{131}{8}$ + 5z = 1 ( subtract $\frac{131}{8}$ from both sides )

5z = - $\frac{123}{8}$ ( divide both sides by 5 )

z = - $\frac{123}{40}$

Solution is

x = $\frac{21}{4\\}$ , y = $\frac{1}{8\\}$ , z = - $\frac{123}{40}$

3 0

3 years ago