Help!! Please!!!!!!!

Answer: b im pretty sure hope this helps :)

Step-by-step explanation:

Answer:

A: x = -4

B: a = -7 (I'm assuming the '-' in front of 49 was supposed to be an '=')

Step-by-step explanation:

A: You need to group the like terms together, and isolate the variable, which in this case is x.

Take the 7 over to the other side, so the equation looks a little bit like this.

3-7 = x.

3-7 is -4, so we've gotten our answer.

x = -4.

B: -7a = 49.

When two negative numbers are multiplied together, the product becomes positive.

49 is 7x7.

-7 times -7 would be 49.

So, in this situation, a would be -7.

a = -7.

Answer:

Step-by-step explanation:

38 − 7x = −2(x − 29)

=> 38 - 7x = -2x + 58

=> 38 - 58 = 7x - 2x

=> -20 = 5x

[tex] = > x = \frac{ - 20}{5} [/tex]

=> x = -4 (Ans)

Answer:

B. and D.

Step-by-step explanation:

If you folded that shape along the lines o and m, it would match up.

There are two lines of symmetry m and o. Options B and D are correct.

From the given figure we have to determine the axes of symmetries.

A line is a straight curve connecting two points or more showing the shortest distance between the initial and final points.

Here,
As of the given figure,
There are 2 axes of symmetry first line m and the other is line o.
Line l and line n are not symmetrical lines because the reflection of one portion will not be superimposed with the other.

Thus, there are two lines of symmetry m and o. Options B and D are correct.

learn more about lines here:

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Answer:

3x² – 5x + 2 is a polynomial because:

Exponents are whole numbers, and the expression has at least 1 term.

Exponents other than whole numbers can take the form of variables in denominators, and roots which we don't want.

The total cost next year will be: $10,613.10

Solving:

The total cost of this year

Simply just add up everything that has been given which wouold give you 10,405

The total cost of next year

multiply the total cost of this year by 1.02 to find what the cost would be with a 2% increase which should give you 10,613.1

Answer:

B

Step-by-step explanation:

[tex]\sqrt{9}[/tex] = 3

3[tex]\pi[/tex] = 9.42477

-2.4 = -2.4

-5 = -5

20% = 0.20

your answer should be 3 :)

Answer:

£75

Step-by-step explanation:

Current value= 80

previous value= 100

current value 1

previous value = 100/80

current value-  £60

previous value 100x60/80

=6000/80

= £75

plz  mark me as brainliest.

Answer:

2/3

5/8

5/9

7/10

etc.

Answer:

c

Step-by-step explanation:

Answer:

(2,6)

Step-by-step explanation:

Answer: I think B is the answer.

Step-by-step explanation:

Answer:not sure but

Step-by-step explanation: you can multiply each box, so lets say we have 20 times 7cm you multiply that and you get your answer, so put that a side

and once you multiply in each box add the numbers up and that should get your answer and make sure to add the "cm" at the end

Answer:

-8

Step-by-step explanation:

The rule for the sequence is ×2

E.g.

-1×2=-2

-2×2=-4

-4×2=-8

Answer:

-8 is the correct answer according to the sequence's rule.

Answer:

I think there are about 16-20 ducks with red marks on them.

Answer:

Around 10 ducks have a red mark

Answer:

The answer is 5x - 13

Step-by-step explanation:

All we do is add the x's and the other numbers.

2 + 3 = 5 and 10 + 3 = 13

So, the equation is 5x - 13

Hope this helps! :)

The value of A when we rewrite 3^x as A^5x is 3^⅕

We have given that,

The value of A when we rewrite 3^x as A^5x.

The power (or exponent) of a number says how many times to use the number in a multiplication. It is written as a small number to the right and above the base number.

3^x

(3^⅕)^(5x)

To learn more about the exponent visit:

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Answer:

3^1/5

Step-by-step explanation:

Answer:

see in the picture mark brainliest if correct

Answer:

[tex]Part=\frac{1}{10}[/tex]

[tex]Part=0.10[/tex]

Step-by-step explanation:

Given

[tex]Columns = 10[/tex]

[tex]Shaded = 1[/tex]

Required

Part of the whole

This is calculated as:

[tex]Part=\frac{Shaded}{Columns}[/tex]

Substitute [tex]Columns = 10[/tex] and [tex]Shaded = 1[/tex]

[tex]Part=\frac{1}{10}[/tex]

[tex]Part=0.10[/tex]

Answer:

(x+1)(x+9)

Step-by-step explanation:

Hope this helps!

Answer:

10sqrt{2}

Step-by-step explanation:

This is a 45-45-90 right triangle. This means that the two legs are both the same length, call it x, and the hypotenuse is square root 2 times the given leg.  There's a proof for this, but it's long, and you can find it online.    

Answer:

1=140  2=9  3=19

Step-by-step explanation:

Answer:

1=140
2=9
3=19

Step-by-step explanation:

Step-by-step explanation:

A. Right

B. Acute

C. Right

D. Obtuse

Answer:

sin(4x) = sin(2x) is unsolvable.

Step-by-step explanation:

The two sides are not equal.

Answer:

80 minutes.

Step-by-step explanation:

do I need to explain? I hate explaining :(

Answer:

450 cm ^3

Step-by-step explanation:

Answer:

There is a 8.11% of any randomly selected athlete to test positive.

Step-by-step explanation:

To make it easier, let's assume there are 100 athletes

5/100 have it

3/95 do not have it, but will test positive

1% of the 5 athletes who are using PEDs = 0.05%

This means that 4.95/100 will test positive

3/95 = 3.16%

(rounded, if you need a more precise answer, it's 3.1578947368421053)

3.16% + 4.95% = 8.11%