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iren [92.7K]
3 years ago
12

4{2a(3a-b)+3ab}+5{3b(a+2b)-4ab}

Mathematics
1 answer:
Paraphin [41]3 years ago
5 0
Follow order of operations.
Distribute what is in the parentheses.
4[6a^2 -2ab +3ab] + 5[3ab + 6b^2 -4ab]

Combine like terms in the brackets.
4[6a^2 + 3ab] + 5[-1ab + 6b^2]

Distribute the 4 and the 5.
24a^2 + 12ab -5ab + 30b^2

Combine like terms.
24a^2 +7ab + 30b^2

That's your final answer:
24a^2 +7ab + 30b^2
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If RT bisects SU, find each measure ST, RU, SV, SU,
FinnZ [79.3K]

Answer:

ST = 23

RU = 8

SV = 5

SV = 10

Step-by-step explanation:

Use the knowledge of the properties of a kite to find the measure of ST, RU, SV, and SU as shown below:

✍️Recall: Each pair of adjacent sides of a kite are congruent/equal.

ST and TU are a pair of adjacent sides.

TU = 23

✅Therefore, ST = 23.

RU and RS are a pair of adjacent sides.

RS = 8

✅Therefore, RU = 8.

✍️ Recall: the longer diagonal of a kite bisects the shorter one. This means RT divides SU into two equal parts, namely SV and UV.

Since UV = 5, therefore,

✅SV = 5

SU = UV + SV

✅SV = 5 + 5 = 10

6 0
3 years ago
what is 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20-19-18-17-16-15-14-13-12-11-10-9-8-7-6-5-4-3-2-1=?
maw [93]

Answer:

It's 20

Step-by-step explanation:

Adding and Subtracting

~~~~~~~~~~~~~~~~~~~~~~~~~

GL :)

8 0
3 years ago
It was estimated that 825 people would attend the soccer game, but 817 people actually attended.
Vladimir79 [104]

Answer:

0.979%

Step-by-step explanation:

Given that:

Estimated value = 825 ;

Actual value = 817

Percentage error:

(|Estimated value - Actual value| ÷ actual value) * 100%

(|825 - 817| ÷ 817) * 100%

(8 / 817) * 100%

0.0097919 * 100%

= 0.979%

= 1% (nearest percent)

4 0
3 years ago
What is the value of a when we rewrite 15^x as a^x/6
jarptica [38.1K]

Answer:

a = 11,390,625.

Step-by-step explanation:

a^x/6 =  (a^1/6)^x  

(a^1/6)^x = 15^x  so:

a^1/6 = 15

1/6 ln a = ln 15

ln a = 6 ln 15

ln a = 16.2483

a = 11390625.

4 0
3 years ago
A circle has its center at ( − 2,  5 ). An endpoint of a radius is at ( 3,  7 ). Which points are on the circle? Select all the
SVEN [57.7K]
B) —4,3 is the answer
7 0
3 years ago
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