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3 years ago

12²+ 9 - 4 a) 119 b)147 c)137 d)221

Mathematics

2 answers:

ziro4ka [17]3 years ago

5 0

Answer:

it will be 147

Step-by-step explanation:

12x12=144

Viktor [21]3 years ago

3 0

Hi There!!

Well, Some sort your answer suppose to be 149.

Because,  $12$ $x$ $12$ ≈ 144 ⁺ 9 ≈ 153 - 4 ≈ 149

But, I guess your answer is B). 137.....

Hope This Helps!!~

$Itsbrazts$

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Jamie had 4/5 of a spool of twine. He then used 1/2 of a spool of twine to make friendship knots. Over. Explain how you know whe

Ganezh [65]

Answer:

Jamie's claims are correct because 3/10 of the spool twine is left over after using 1/2 of the spool twin for friendship knot

Step-by-step explanation:

Full question: He claims to have 3/10 of the original spool of twine leftover.

First, we compare 3/10 with 4/5 - 1/2

The lowest common multiple for2 and 5 is 10.

To write 4/5 as a fraction with common denominator, multiply numerator and denominator by 2

4/5 = (4×2)/(5×2) = 8/10

To write 1/2 as a fraction with a common denominator, multiply denominator and numerator by5

1/2 =(1×5)/(2×5) = 5/0

So we have :

8/10 - 5/10

Since denominators are equal ,we go ahead and subtract

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4 0

3 years ago

A blimp can be seen flying at an altitude of 5500 feet above a motor speedway during a race. The slanted distance directly to th

Vladimir [108]

Answer:

The expression of h as function of x is h = $\sqrt{(d + 5500) (d - 5500)}$

Step-by-step explanation:

Given as :

The distance of blimp (AB) = 5500 feet

The slanted distance to the pagoda (BC) = d feet

The horizontal distance (AC) = h

Let the angle made between slanted distance and horizontal distance be Ф

So , cos Ф = $\frac{AC}{BC}$ = $\frac{h}{d}$

And sin Ф = $\frac{AB}{BC}$ = $\frac{5500}{d}$

∵, cos²Ф = 1 - sin²Ф

So, $(\frac{h}{d})^{2}$ = $1 - (\frac{5500}{d})^{2}$

Or, $(\frac{h}{d})^{2}$ = $(\frac{d^{2}- 5500^{2}}{d^{2}})$

Or, h² = d² - 5500²

∴ h = $\sqrt{d^{2}- 5500^{2}}$

Or, h = $\sqrt{(d + 5500) (d - 5500)}$

Hence The expression of h as function of x is h = $\sqrt{(d + 5500) (d - 5500)}$ Answer

3 0

3 years ago

Help me plz !!!!!! i need help be honest

klemol [59]

THE ANSER is commutative property of addition

4 0

3 years ago

Two of your friends, Matt and Karen, both run to you to settle a dispute. They were working on a math problem, and got different

Anna11 [10]

So in matt's equation, he made a mistake in the a transision from line 2 to line 3
in line 2: -4(-2)2
in line 3: -4(4)
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also from lines 5 to 6 he made a mistake in order of opperations (mulit division then addition and subtract)
line 5: -10+30/5
line 6: 20/5

so he first subtracted 10 then divided, he should have divided then subtracted
so the equation should have equaled

Karen used the correct (-) times (+) property and the order of operations
so Karen is correct and Matt is wrong.

5 0

2 years ago

Read 2 more answers

Sarah and Eva are swimming use the ratio table to determine who is the faster swimmer

pentagon [3]

Sarahtime (min)    {3 } 5 12 17
distance (meters) {75} 125   300 425

Eva time (min)     {2}    7 10    20
distance (meters)    {52} 182   260 520

Sarah:meters over min =75 over 3 = 25 over 1
25 meters per min

Eva :meters over min= 52 over 2 =26 over 1
26 meters per min

eva is the faster swimming because 26 meters per min is faster then 25 meters per min .

i hope this help

6 0

2 years ago