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2 years ago

The question is in the photo

Mathematics

1 answer:

vovikov84 [41]2 years ago

6 0

$\displaystyle\bf 3x+7\geq 52 \ ; \ x>15 \\\\3x\geq 45\\\\x\geq 15 \ \ \ and \ \ \ x>15$ here is a contradiction because in one inequality x can be equal to 15 ; and in the other it cannot

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Sam and bethan share £54 in the ration 5:4

Margarita [4]

Answer:

<h2>Let the common ratio b x thus the part becomes</h2><h2>=5x and 4x respectively</h2>

<h2>Sam will get is £30 (putting the value of x)</h2><h2>and Bethan will get £24</h2>

3 0

2 years ago

Of the following integers, which is the closest approximation to (2âˆš+5âˆš)2(2+5)2?A. 7B. 10C. 13D. 15E. 17

MAXImum [283]

Answer:

C. 13

Step-by-step explanation:

from on online source, the question should be placed as thus:

Of the following integers, which is the closest approximation to (√2 + √5)^2 ?

A. 7

B. 10

C. 13

D. 15

E. 17

This is known as Algebraic expression. So we have to expand to simplify further

using this identity th (a+b)^2 = a^2 + b^2 +2ab

(√2 + √5)^2 =

(√2 + √5)(√2 + √5)

................Expansion of the above

$\sqrt{2}* \sqrt{2} +\sqrt{2}* \sqrt{5} +\sqrt{2} *\sqrt{5}+\sqrt{5} *\sqrt{5}$

2 + 5 + 2√10

~ 2 +5 + 2(3)

C. 13

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3 years ago

Jason's savings account has a balance of $2179. After 5 years, what will the amount of interest be at 6% compounded quarterly? a

PilotLPTM [1.2K]

A is the answer to your question

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2 years ago

Which graph shows exponential growth?

nevsk [136]

Answer:

the answer is B

Step-by-step explanation:

just did the test

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2 years ago

Read 2 more answers

What is the value of the expression 2/4^-3?

Kisachek [45]

$\frac{2}{4^-3} \\ \\ \frac{2}{ \frac{1}{4^3} } \\ \\ \frac{2}{ \frac{1}{64} } \\ \\ 2 \times 64 \\ \\ 128 \\ \\ Answer: \fbox {128}$

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3 years ago