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3 years ago

I need help.. ASAP!! i figured out the first one but i don't think it's right..

Mathematics

2 answers:

Ivanshal [37]3 years ago

8 0

5.its correct answer. 6.complimentary 7.supplimentary

True [87]3 years ago

5 0

Your first answer is correct. Don't doubt yourself. :)

2nd problem is 90 degrees and complementary.

3rd problem is 180 degrees and supplementary.

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Multiplying positive and negative fractions 2/5 times 2/3

Svet_ta [14]

Answer:

$\frac{4}{15}$

Step-by-step explanation:

I used an online Fraction calculator to check my answer and I got 4/15 both times so you can trust this answer my friend.

Hope this helped you out.

5 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

Find the area of the shaded reigon

nikdorinn [45]

Answer:

40π/3 cm^2 ≈ 41.89 cm^2

Step-by-step explanation:

The centerline of the shaded region has a radius of 3cm+(4 cm)/2 = 5 cm. Its length is 1/3 that of the circumference of a circle with that radius (because 120° is 1/3 of 360°).

The area is the product of the centerline length and the width of the shaded area (4 cm).

shaded area = (1/3)(2π(5 cm))(4 cm)

shaded area = 40π/3 cm^2 ≈ 41.89 cm^2

<em>Alternate solution</em>

The area of the donut is the difference in the areas of the outer and inner circles:

πr₂² -πr₁² = π((7 cm)^2 -(3 cm)^2) = 40π cm^2

The are of the shaded region is (120°/360°) = 1/3 of that, so is

shaded area = (40/3)π cm^2

7 0

3 years ago

laura makes a 10.5% commisssion on each of her sales. how much does she make when she sells a house for $85,000?

antiseptic1488 [7]

I think it's 8925 since you would do 85000 times .105

4 0

4 years ago

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1.) Which is the most precise name of this figure? 1. parallelogram

PolarNik [594]

Answer:

Here are the answer to your question

1. Rhombus

2. Diagonals are congruent

Here is the answer for the rest of the quick check if anyone needs them

3. Diagonals are perpendicular and diagonals are congruent

4. 4

8 0

4 years ago

Read 2 more answers