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trapecia [35]
3 years ago
10

Solve the equation. (5x+7)(8x-9)=0

Mathematics
2 answers:
swat323 years ago
7 0

Answer:

x = - 7/5 and 9/8

Step-by-step explanation:

Lina20 [59]3 years ago
3 0

Answer:

x = -7/5 and x = 9/8

Step-by-step explanation:

To solve this equation, set both parts of the "expression" equal to 0.

5x + 7 = 0

Subtract 7 from both sides.

5x = -7

Divide both sides by 5.

x = -7/5

8x - 9 = 0

Add 9 to both sides.

8x = 9

Divide both sides by 8.

x = 9/8

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PLEASE HELP ASAP!!! I NEED CORRECT ANSWERS ONLY PLEASE!!! I NEED TO FINISH THESE QUESTIONS BEFORE MIDNIGHT TONIGHT.
Naily [24]

Answer:

Step-by-step explanation:

Triangle HIJ is a right angle triangle.

From the given right angle triangle

IJ represents the hypotenuse of the right angle triangle.

With ∠J as the reference angle,

HJ represents the adjacent side of the right angle triangle.

HI represents the opposite side of the right angle triangle.

To determine IJ, we would apply Sine trigonometric ratio. It is expressed as

Sin θ = opposite side/hypotenuse. Therefore,

Sin 54 = 7/IJ

0.8090 = 7/IJ

IJ = 7/0.8090

IJ = 8.7 to the nearest tenth

4 0
3 years ago
What is 241,639 rounded to the nearest thousand?
stich3 [128]

Answer:

242,000

Step-by-step explanation:

Since the 6 in the hundreds place is greater than 5, you round up.

3 0
3 years ago
How many times larger is 8*10^6 than 2*10^2
bogdanovich [222]
The first step for solving this question is put both of your given expressions into one and then subtract them. This will look like the following:
8 × 10^{6} - 2 × 10²]
Now to make the calculation easier,, factor the expression.
(8 × 10^{4} - 2) × 10²
Evaluate the power inside the parenthesis.
(8 × 10000 - 2) × 10²
Evaluate the power outside the parenthesis.
(8 × 10000 - 2) × 100
Multiply the numbers inside the parenthesis.
(80000 - 2) × 100
Subtract the numbers in the parenthesis.
79998 × 100
Lastly,, multiply the numbers together to get your final answer.
7999800
This means that 8 × 10^{6} is 7999800 times larger than 2 × 10².
Let me know if you have any further questions.
:)
8 0
3 years ago
Use an inequality symbol (<,>,=,<_) to compare -3+7____-10-2
Oliga [24]

Answer:

>

Step-by-step explanation:

-3+7= 4

-10-2= -12

4> -12

6 0
4 years ago
Completes the equation 26×72=_+40+420+12
Anarel [89]
26 x 72 = 1872
40 + 420 + 12 = 472
1872 - 472 = 1400 (the answer)
6 0
4 years ago
Read 2 more answers
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