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3 years ago

Can you please help me to solve this mathematical question: (+1) - (-9) = ?

Mathematics

2 answers:

Rufina [12.5K]3 years ago

6 0

Answer:

-8

this is the all answer but no steps

Anna007 [38]3 years ago

5 0

Two negatives make a positive. Answer is 10

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The graph of f(x) is shown. For what values of X does f(x)= 0

german

Answer:

-3, -1, 1

Step-by-step explanation:

The values of x when f(x) = 0 are the points on the graph when the curve intercepts the x-axis.

From inspection of the graph, the curve intercepts the x-axis at

x = -3, x = -1 and x = 1

4 0

2 years ago

Solve (x – 3)= 5<br> Give your solutions correct to 3 significant figures.

nekit [7.7K]

Answer:

x=8

Step-by-step explanation:

x=5+3

= 8

5 0

3 years ago

Read 2 more answers

How many hours did it take him to finish the project?

EleoNora [17]

First, find 20% of 5 hours. 20% is also 1/5 of something, and 1/5 of 5 is 1.
Multiply 5 by 3 for the 300%, getting 15 hours, and add 1 for the 20%.
He spent 16 hours on the project. Hope this helps!

8 0

3 years ago

A = {1, 3, 5, 7, 9}<br> B = {2, 3, 5, 7}<br> What is A ∩ B?

Oksanka [162]

Answer:

It was {3,5,7}

6 0

3 years ago

Sandra used partial products to find the product of 438 × 17 by multiplying 438 by 1 and 438 by 7 to get 3,066. Find the product

boyakko [2]

Let us determine the product of 438 and 17 by partial products.

Consider $438 = 400+30+8$

and $17 = 10+7$

So, $438 \times 17 = (400+30+8) \times (10+7)$

$438 \times 17 = (400\times 10)+(30 \times 10)+(8 \times 10) +(400 \times 7)+(30 \times 7)+(8 \times 7)$

= $438 \times 17 = (4000+300+80+2800+210+56)$

= 7446

Therefore, the product of 438 and 17 is 7446.

No, Sandra's answer is not correct.

Because she should have expressed 17 as (10+7), then if she multiplied (438 by 10) and (438 by 7). And, then added the results.Then her answer would be correct.

6 0

3 years ago