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nasty-shy [4]
3 years ago
14

PLEASE ANSWER FAST 20 pts

Mathematics
1 answer:
Marysya12 [62]3 years ago
6 0

Answer: it only said 10 pints

Step-by-step explanation:

5/8m + 9 - 3/8m - 15= 2/8 - 6

**** 1/4m -6

thats the first one

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What is the solution to log_5 (10x-1)=log_5 (9x+7)
MArishka [77]

Answer: D

To solve the equation we proceed as follows:

log5(10x-1)=log5(9x+7)

canceling out log5 we get:

(10x-1)=(9x+7)

solving for x we get:

10x-9x=7+1

x=8

thus the value of x=8

Step-by-step explanation:

<em>it was on brainly already</em>

5 0
3 years ago
Read 2 more answers
Kalei is 6ft tall and stands 10 feet from a tree. He measures an angle if elevation of 30° up to the coconuts on the tree. How h
Juli2301 [7.4K]

Answer:

The total height of coconut Tree = H + 10ft = 11.77 ft

Step-by-step explanation:

Given as,

The height of Kalei = 6ft

The distance of Kalei from the coconut Tree = 10 feet

Angle of elevation of kalei up to the coconut on tree = 30°

<u>Note : look at the pic attache </u>

From figure it is mention that

Total height of Tree = 6 ft + H

So, Tan 30° = \frac{perpendicular}{base}

     Tan 30° = \frac{H}{10}

    ∴ H         = 10 Tan 30° = 10 × 0.577         Note : tan 30° = 0.577

i.e    H         = 5.77 ft

Hence the total height of coconut tree = 6 + 5.77 = 11.77 ft   Answer

6 0
3 years ago
Help please!!! What is the radius?<br> A) 5<br> B)7<br> C)13<br> D)6.5
Westkost [7]

Answer:

6.5

Step-by-step explanation:

6 0
3 years ago
What is the answer thank u
Serggg [28]
9a+5b you need to distribute the numbers in parenthesis
4 0
3 years ago
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a rectangular room is twice as long as its breadth and its peimeter is 540 m. find the number of bricks of size 20 cm ×12cm to p
balu736 [363]

Answer:

Step-by-step explanation:

breadth = x

length = 2x

Perimeter = 540m

2*( length + breadth ) = 540

2 *(2x + x) = 540

3x = 540/2

3x = 270

x = 270/3

x = 90 m

Breadth = 90m = 90 *100 = 9000 cm

Length = 2*90 = 180 m = 180 * 100 = 18000 cm

No.of bricks = Area of room/ area of one brick

= 9000 * 18000 / 20 * 12

= 675000 bricks

6 0
3 years ago
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