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3 years ago

Please help due tommorow

Mathematics

2 answers:

raketka [301]3 years ago

5 0

Answer:

4 is b 0.15

i think 5 is b

Step-by-step explanation:

i couldn't figure out the others "-u-

OlgaM077 [116]3 years ago

4 0

I think 1. Is 22 and 3. Is d

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The point p(2,3) is reflected across the x axis find the coordinates of its image

alekssr [168]

B

Any point reflected across the x axis is (x,-y) so (2,3) becomes (2,-3)

3 0

3 years ago

If a b and c are three different numbers which of the following equations has exactly one solution?

Mrrafil [7]

Option B is correct.

Step-by-step explanation:

We need to identify which of the following equations has exactly one solution.

We will solve each equation to find the answer

A. $ax+b=ax+b$

Solving and finding value of x:

$ax+b=ax+b\\ax-ax=b-b\\0=0$

This equation has infinite number of solutions because both sides are equal to 0

B. $ax=bx+c$

Solving and finding value of x:

$ax=bx+c\\ax-bx=c\\x(a-b)=c\\x=\frac{c}{a-b}$

This equation has exactly one solution

C. $ax+b=ax+c$

$ax+b=ax+c\\ax-ax=c-b\\0=c-b$

This equation has no solution because both sides are not equal.

So, Option B is correct.

Keywords: Solving Equations

Learn more about Solving Equations at:

#learnwithBrainly

4 0

3 years ago

Cammie can mow 1/2 acre in 25 minutes. If her rate is constant, Cammie says she can mow 1 1/4 acres in one hour. Is Cammie corre

Sergeu [11.5K]

Answer: No, Cammie is not correct. She can mow $1\frac{1}{5}\ acres$ in one hour (See explanation).

Step-by-step explanation:

Convert the mixed number to an impoper fraction:

1. Multiply the whole number part by the denominator of the fraction and add the product to the numerator.

2. The denominator does not change.

Then:

$1\frac{1}{4}=\frac{(1*4)+1}{4}=\frac{5}{4}$

Let be "x" the acres Cammie can mow in one hour.

You know that she can mow $\frac{1}{2}\ acre$ in 25 minutes, then you can set up the following proportion (Remember that 1 hour has 60 minutes):

$\frac{\frac{1}{2}}{25}=\frac{x}{60}$

Solving for "x", you get:

$\frac{\frac{1}{2}}{25}=\frac{x}{60}\\\\(60)(\frac{1}{50})=x\\\\x=\frac{6}{5}$

Convert from improper fraction to mixed number:

1. When you divide 6 by 5, the quotient is 1. This will be the whole number part.

2. The remainder is 1. This will be the numerator.

3. The denominator does not change.

Then:

$x=1\frac{1}{5}$

Therefore, she can mow $1\frac{1}{5}\ acres$ in one hour.

3 0

3 years ago

What is the domain of the following function?

ki77a [65]

Answer:

{-1, 0, 1, 2, 3, 4, 5}

Step-by-step explanation:

The domain is all the possible X values so on this graph it would be all the x values from -1 - -5

7 0

3 years ago

When Steve woke up His temperature was 102F two hrs later it was 3F lower.What was his temperature then?

ivann1987 [24]

Answer:

Step-by-step explanation:

102F down by 3F would be 99 and it says then. Then would be the 'two hrs later'.

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4 years ago