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3 years ago

What is the sum of 8+(-8)-4

Mathematics

2 answers:

Juli2301 [7.4K]3 years ago

3 0

Answer:

-4

Step-by-step explanation:

hope this helps, can i have brainliest? trynna get to the next level lol

tester [92]3 years ago

3 0

Answer:

= - 4

Step-by-step explanation:

Step-by-step

8-8-4

=0-4

= - 4

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Solve for a<br><br> a² + 7a - 8 = 0

masya89 [10]

Answer:

a=-8

Step-by-step explanation:

5 0

3 years ago

Given: PRST is a square

xxTIMURxx [149]

Answer:

$(1-\sqrt{2})a^2$

Step-by-step explanation:

Consider irght triangle PRS. By the Pythagorean theorem,

$PS^2=PR^2+RS^2\\ \\PS^2=a^2+a^2\\ \\PS^2=2a^2\\ \\PS=\sqrt{2}a$

Thus,

$MS=PS-PM=\sqrt{2}a-a=(\sqrt{2}-1)a$

Consider isosceles triangle MSC. In this triangle

$MS=MC=(\sqrt{2}-1)a.$

The area of this triangle is

$A_{MSC}=\dfrac{1}{2}MS\cdot MC=\dfrac{1}{2}\cdot (\sqrt{2}-1)a\cdot (\sqrt{2}-1)a=\dfrac{(\sqrt{2}-1)^2a^2}{2}=\dfrac{(3-2\sqrt{2})a^2}{2}$

Consider right triangle PTS. The area of this triangle is

$A_{PTS}=\dfrac{1}{2}PT\cdot TS=\dfrac{1}{2}a\cdot a=\dfrac{a^2}{2}$

The area of the quadrilateral PMCT is the difference in area of triangles PTS and MSC:

$A_{PMCT}=\dfrac{(3-2\sqrt{2})a^2}{2}-\dfrac{a^2}{2}=\dfrac{(2-2\sqrt{2})a^2}{2}=(1-\sqrt{2})a^2$

5 0

3 years ago

I need help ASAP PLSSSSS.

yKpoI14uk [10]

Answer:

Step-by-step explanation:

I dont know if its right but I think you have to subtract 30% from seven since the equation is not being specific and I came up with 4.9 but dont quote me on it im just giving a educational guess

6 0

3 years ago

Read 2 more answers

SEE QUESTION IN IMAGE

Rudik [331]

Answer:

<u>Total number in favour:</u>

128 + 96 = 224

<u>Probability:</u>

P(favour, A) = 128/224 = 4/7

<u>Total number in against:</u>

32 + 48 = 80

<u>Probability:</u>

P(against, not B) = 32/80 = 2/5

3 0

3 years ago

Under her cell phone plan, Janelys pays a flat cost of $46.50 per month and $5 per gigabyte. She wants to keep her bill under $7

allsm [11]

Answer:

Less than 4.70 GB

Step-by-step explanation:

Let x = # of GB that Janelys uses that month. Since Janelys wants to pay less than $70 given that the flat rate for subscribing to that company's data per month is $46.50 and each GB costs $5 to use, the inequality can be written as:

5x + 46.50 < 70

5x < 23.50 Subtract $45.60 from each side.

x < 4.70 GB Divide 5 from each side.

Thus, (if it is whole numbers) Janelys can use 4 GB while staying within her budget or (if decimals are fine) anything less than 4.70 GB. Hope this helped! :D

8 0

2 years ago