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3 years ago

Pls help me its for a grade

Mathematics

2 answers:

SVETLANKA909090 [29]3 years ago

7 0

Answer:

D. -9

Step-by-step explanation:

$5f - 6f = 9 \\ - f = 9 \\ f = - 9$

HACTEHA [7]3 years ago

7 0

its either B C or D

cant be A

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Help plz will mark brainliest

sergiy2304 [10]

Answer:

for 33 its C

Step-by-step explanation:

4 times blue parakeets is 4b

y=4 times blue parakeets so y=4b

7 0

3 years ago

Read 2 more answers

The modulus of a real number, n, is equal to _____.

Bogdan [553]

Answer:

The absolute value

Step-by-step explanation:

we know that

The modulus of a real number, is equal to the absolute value of the real number

The modulus of a positive number is simply the number and the modulus of a negative number is found by ignoring the minus sign.

Then

modulus of n is always positive number .such that n belongs to real number R.

Modules of n is denoted by |n|

Examples:

|-4|=4

|2.5|=2.5

|-100.1|=100.1

5 0

3 years ago

Please help me!! Solve for 'a'. b=(4*a)-3 ---------- 4

lilavasa [31]

here u go! i hope this is correct :)

8 0

2 years ago

Read 2 more answers

Can anyone help me with these i need them befire tomorrow

mash [69]

When you have a scale factor as percentage, is better to convert that percentage into a fraction by divide it by 100%. That way, it will be much easier to scale your figures.

1. The scale factor we need to apply to our rectangle is 60%. Firts, lets convert our scale factor into a fraction: $\frac{60}{100} = \frac{3}{5}$ . Next, we just need to multiply each side of our rectangle by our fraction:
length= $16( \frac{3}{5})=9.6$
width= $8( \frac{3}{5} )=4.8$
So, our new rectangle will have a length of 9.6 units and a width of 4.8 units.

2. This time the scale factor is 120%. Just as before, lets convert it into a fraction: $\frac{120}{100} = \frac{6}{5}$ , and just as before lets multiply each side of our triangle by our fraction:
base= $10( \frac{6}{5} )=12$
side= $8( \frac{6}{5} )=9.6$
So, our new isosceles triangle will have a base of 12 units and tow sides of length 9.6 units each.

3. This time the scale factor is 150%. Just as before, lets convert it into a fraction: $\frac{150}{100} = \frac{3}{2}$ , and just as before lets multiply each side of our polygon by our fraction:
$12( \frac{3}{2} )=18$
$15( \frac{3}{2} )=22.5$
$13( \frac{3}{2} )=19.5$
So, our new polygon will have a side of 12 length units, tow sides of 15 length units, and two side of 15 length units.

4. This time our factor is 75%. Just as before, lets convert it into a fraction: $\frac{75}{100} = \frac{3}{4}$ , and just as before lets multiply each side of our parallelogram by our fraction:
side= $25( \frac{3}{4} )=18.75$
So, our new parallelogram will have tow sides of length 18.75 units.