2 years ago

Pls answer ASAP.. picture of questions listed below... THX

Mathematics

1 answer:

weqwewe [10]2 years ago

7 0

Answer:

Here's for part a: 8.43 x 10^5 3.19 x 10^8

I'm not really sure for part b.

I hope this answer for part a helped...

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-x²-8x-16=0 <br>what is the solutions by solving by quadratic equations

Alika [10]

Answer:

x = - 4

Step-by-step explanation:

Given

- x² - 8x - 16 = 0 ( multiply through by - 1 to clear the leading negative )

x² + 8x + 16 = 0 ← this is a perfect square

(x + 4)² = 0 ( take the square root of both sides )

x + 4 = 0 ( subtract 4 from both sides )

x = - 4

6 0

2 years ago

Is (2, 4) a solution to the system<br> y = 2x<br> x + y = 6

posledela

Answer:

yes you plug the numbers in

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2 years ago

Yan has already finished 3/5 of the 45 math problems he was assigned today. Each math problem took him 1 4/5 of a minute to comp

kobusy [5.1K]

Answer:

He will finish the rest of the problems in 32.4 minutes.

Step-by-step explanation:

Since we are given that Yan has completed 3/5 of 45 problems i.e.

$\frac{3}{5}*45$

$27$

Thus he has completed 27 problems

Remaining no. of problems are 45-27 = 18

Since he complete each problem in minutes = $1\frac{4}{5} =\frac{9}{5} =1.8$

So, he completes 18 problems in minutes = 18 *1.8 = 32.4 minutes

Hence , He will finish the rest of the problems in 32.4 minutes.

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2 years ago

What is the correct answer to this question?

Amiraneli [1.4K]

Answer:

548 ft

Step-by-step explanation:

70+70+84+84+120+120

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2 years ago

For what value of x must ABCD be a parallelogram?

bija089 [108]

5x = 6x-7

subtract 6x from each side

-x=-7

x=7

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3 years ago

Read 2 more answers