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2 years ago

PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS

Mathematics

2 answers:

bixtya [17]2 years ago

4 0

Answer:

30%

Step-by-step explanation:

the first solution -30% will be 45% and the second solution added by 30% will be 45%

Nastasia [14]2 years ago

4 0

An which direction does heat move?

From an object with a cool temperature to another object with a cool temperature.

From an object with a higher temperature to an object with a lower temperature.

with a lower temperature to an object with a higher temperature.

From an object with a warm temperature to another object with a warm temperature.

Step-by-step explanation:

You might be interested in

-15= z/-2 answer please?

faust18 [17]

Answer:

Step-by-step explanation:

$-15=\frac{z}{-2}\\\\(-15)(-2)=z\\\\30=z$

4 0

3 years ago

Given f(x)=4x+5 and g(x)= x^2+x; find (f∘g)(-5) Please show all steps thank you

Greeley [361]

Answer:

$(f\circ g)(-5)=85$

Step-by-step explanation:

We are given:

$\displaystyle f(x)=4x+5\text{ and } g(x)=x^2+x$

And we want to find:

$(f\circ g)(-5)$

This is equivalent to:

$\displaystyle =f(g(-5))$

So, we will evaluate g(-5) first, which yields:

$\displaystyle g(-5)=(-5)^2+(-5)=25-5=20$

So:

$=f(g(-5))=f(20)$

Then:

$\displaystyle f(20)=4(20)+5=80+5=85$

Therefore:

$(f\circ g)(-5)=85$

6 0

3 years ago

Which values of c will cause the quadratic equation –x2 + 3x + c = 0 to have no real number solutions? Check all that apply.

nika2105 [10]

Quadratic equation which has no solution gives zero for the value of d.
d = b² - 4ac
0 = 3² +- 4(-1)c
-9 = +_ 4c
c = -9/-4 pr 9/-4
c = 9/4 or -9/4

In short, Your Answers would be Option C & E

Hope this helps!

7 0

3 years ago

Read 2 more answers

You earn $42 for washing 6 cars. How much do you earn for washing 3 cars? Find the unit rate.

antoniya [11.8K]

Answer:

21$

Step-by-step explanation:

42÷6=7

7×3=21

6 0

3 years ago

Read 2 more answers

Solve the following system.

PSYCHO15rus [73]

answers

y=2×2+3×-1 and x+ y= -1

Step-by-step explanation:

y =2×2+3x-1and x + y =1y= -2×2+3x-7 and x+y=-2x3x-1and x+y =-1

6 0

3 years ago