3 years ago

I am confused still, how would I do this?

Mathematics

1 answer:

White raven [17]3 years ago

8 0

Answer:

yes, its a solution

Step-by-step explanation:

6(-2)+5(1)=-7

-12+5=-7 this is correct

2(-2)-4(1)=-8

-4-4=-8 this is also correct

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olga nikolaevna [1]

Answer:

(4−3i)x^2

=4x^2 - 3ix^2

3 0

3 years ago

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Priya has completed 9 exam questions. This is 60% of the questions on the exam. How many questions are on the exam?

USPshnik [31]

the whole exam will be 100%, and let's say that's "x" questions, but we also know that 9 is 60% of that so

$\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} x&100\\ 9&60 \end{array}\implies \cfrac{x}{9}=\cfrac{100}{60}\implies \cfrac{x}{9}=\cfrac{5}{3}\implies 3x=45 \\\\\\ x=\cfrac{45}{3}\implies x=15$

8 0

3 years ago

What is the volume of this square pyramid?

tatuchka [14]

Answer: 1296 cm³

Step-by-step explanation:

Since, the volume of a square pyramid is,

$V = \frac{a^2h}{3}$

Where a = side of the square base,

h = height of the pyramid,

By the given diagram,

a = 18 cm,

h = 12 cm,

Hence, the volume of the given pyramid,

$V = \frac{18^2\times 12}{3}$

$= \frac{324\times 12}{3}$

$=\frac{3888}{3}$

$=1296$ cube cm.

⇒ First option is correct.

5 0

3 years ago

(8+4∙5)∙10+5∙4∙25∙2=

Lapatulllka [165]

1280 Is the correct anwser

5 0

3 years ago

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PLEASE ANSWER ASAP! NO SCAM LINKS OR REPORTED.

pochemuha

Answer:

Its A

Step-by-step explanation:

Standard equation: y=mx+b

x+y=0

-x -x

y=-x+0

8 0

3 years ago

I am confused still, how would I do this?​

I am confused still, how would I do this?