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umka2103 [35]
3 years ago
14

Expand 5x(5y + 7) ......

Mathematics
2 answers:
MrMuchimi3 years ago
8 0

Answer:

the answer to this equation 5x*5y + 5x*7

lina2011 [118]3 years ago
3 0

Answer:

25xy + 35x

Step-by-step explanation:

Expand by distributing term.

5x \times 5y + 5x \times 7

Simplify 5x × 5y to 25xy.

25xy + 5x  \times 7

Simplify 5x × 7 to 35x.

25xy + 35x

Hence, the answer is 25xy + 35x.

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I’m confused on this one
Mandarinka [93]

Remark

If the lines are parallel then triangle RQS will be similar to triangle RTP


From that, all three lines in one triangle will bear the same ratio to all three lines of the second triangle.


Givens

PQ = 8

QR = 5

RS = 15

ST = x + 3


Ratio

QR/RP = RS/RT


Sub and solve

RP = 5 + 8

RP = 13


RT = 15 + x + 3

RT = 18 + x


5/13 = 15 / (18 + x) Cross multiply

5(18 + x) = 195 Remove the brackets on the left.

90 + 5x = 195 Subtract 90 from both sides.

5x = 105 Divide by 5

x = 105/5

x = 21 Answer <<<<<<<

3 0
3 years ago
If the diameter of the circle is 24 cm, find its area correct to 1 decimal place.
Blababa [14]

Answer:

452.4 cm^2

Step-by-step explanation:

Use the area formula A = πr².  With d = 24 cm, r = 12 cm, and so the desired area is

A = π(144 cm^2) = 452.4 cm^2

6 0
3 years ago
Whats the property? If -7x=14 then 14=-7x
timofeeve [1]

Answer:

the answer is commutative property

Step-by-step explanation:

commutative property is when both constants or variables don't change value when you move them from one side of the equal sign to another such as "a+b = b+a" or " a=b; b=a" both examples do not change value

3 0
3 years ago
Read 2 more answers
Which two integers is 42 between?<br> -8 and -7<br> -5 and -4<br> -7 and -6<br> -9 and -8
Karo-lina-s [1.5K]

Answer:

6 and 7

Step-by-step explanation:

we know that 42 will lie between 36 and 49

And 36=6; 49=7

so we can be sure that 42 lies between 6 and 7

3 0
3 years ago
I need help with this question! (it's the picture)
Sauron [17]
Cos(38°) = x/44  ⇒ x = 44 * cos(38°) ≈ 34.7 units
6 0
3 years ago
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