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2 years ago

Pls help and also no links plz

Mathematics

1 answer:

Anettt [7]2 years ago

8 0

Answer:

I think it's 5 or7

Step-by-step explanation:

hope it helps you

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What is the length of the hypotenus of a right triangle in each of the two legs is 7 units

vlada-n [284]

To find the hypotenuse of a right triangle, use the following formula:

$c=\sqrt{a^2+b^2}$

Your a and your b are your legs. Plug them in. In this case, we plug in 7 for both.

$c=\sqrt{7^2+7^2}$

$c=\sqrt{49+49}$

$c=\sqrt{98}$

Your answer would be:

Approximate: 9.9

Exact: $7\sqrt{2}$

8 0

3 years ago

Simplify the following polynomial expression. (5x^4 - 9x^3 + 7x - 1) + (-8x^4 + 4x^2 - 3x + 2) - ( -4x^3 + 5x - 1)( 2x - 7)

Lady bird [3.3K]

Answer: $5x^{4}-37x^{3}-6x^{2} +41x-6$

Step-by-step explanation:

1. You must apply the Distributive property. You need to remember the product property of exponents: If you multiply powers with the same base, you must add the exponents. Them you have:

$=5x^{4}-9x^{3}+7x-1-8x^{4}+4x^{2}-3x+2-(8x^{4}+28x^{3}+10x^{2}-35x-2x+7)\\=5x^{4}-9x^{3}+7x-1-8x^{4}+4x^{2}-3x+2-8x^{4}-28x^{3}-10x^{2}+35x+2x-7$

2. Now, you must add the like terms. Then, you obtain the following result:

$=5x^{4}-37x^{3}-6x^{2} +41x-6$

7 0

2 years ago

A marker is randomly selected from a drawer that contains 20 green, 44 orange, and 30 blue markers. Which statement is true?.

Pavlova-9 [17]

Answer:

See below.

Step-by-step explanation:

Total number of markers: 20 + 44 + 30 = 94

p(green) = 20/94 = 0.213

p(orange) = 44/94 = 0.468

p(blue) = 30/94 = 0.319

Choose the correct answer by comparing your choices with the 3 probabilities above.

8 0

2 years ago

Using the formula C=2pi r find the circumference of a circle with diameter of 28 inches. Round your answer to the nearest inch.

Ivenika [448]

Answer: 88 inches

Step-by-step explanation:

We know that the formula to find the circumference of circle is given by :-

$C=2\pi r$ , where r is the radius of the circle.

Given : Diameter of circle = 28 inches

Also, diameter is twice of radius.

i.e. 2r=28

Therefore, the circumference of circle will be :-

$C=2\pi r=(2r)\pi=28\times(3.14)=87.92text{ inches}\approx88\text{ inches}$

Hence, the circumference of circle is 88 inches.

5 0

3 years ago

Please answer 1-7 I BEG YOU I WILL MARK BRAINLIEST

enot [183]

Use the Circumference Formula of a Circle: C=2(pi)(r). The radius is the length from the center to a point on the circle. The circumference is essentially the perimeter of the circle, so the “edge” around the circle is the circumference.

8 0

2 years ago

Read 2 more answers

Pls help and also no links plz​

Pls help and also no links plz