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4 years ago

What polynomial should be subtracted from the polynomial y^2–5y+1 to get the difference equal to 4y^2-y+7

Mathematics

1 answer:

kolezko [41]4 years ago

3 0

Y^2-5y+1- a= 4y^2-y+7

a=y^2- 4y^2-5y+y+1-7

a= -3 y^2 - 4y - 6 this is the polynomial

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What percent of 80 is 90

Serhud [2]

$\text{What percent of 80 is 90?}\\\\\text{Calculate what fraction of the number 90 is 80}\\\\\dfrac{80}{90}=\dfrac{8}{9}\\\\\text{Convert it to percent}\\\\\dfrac{8}{9}\cdot100\%=\dfrac{800}{9}\%=88\dfrac{8}{9}\%\\\\Answer:\ \boxed{80\ is\ 88\dfrac{8}{9}\%\ of\ 90}$

8 0

3 years ago

Mrs. O'Malley is setting up for a party. Each adult will get 2 glasses, and each child will get 1 glasses. There are 8 Adult and

malfutka [58]

1 adult=2

1 child=1

multiply 2*8=16 adult glasses

multiply 1*5=5 child glasses

in total she needs 21 glasses

hope I was helpful

5 0

3 years ago

In what career would you most likely apply concepts from geometry?

Nitella [24]

Answer:

- Architect

- Cartographer and Photogrammetrist

- Drafter

- Mechanical Engineer

- Surveyor

- Urban and Regional Planner

Step-by-step explanation:

Architects utilize geometric principles while designing layouts for their ongoing projects, which can include buildings, electrical systems, and plumbing architecture.

Cartographers utilize geographic data to create or update maps for use in education, as well as environmental presentations.

Using the same geometric knowledge and applications as architects and engineers, drafters create design plans with the use of computer-aided design (CAD) software.

Mechanical engineers, some of the most diversified engineers, use a multitude of geometric concepts to design mechanical devices, or update existing structures.

Surveyors use geometry to take exact measurements of boundaries for different types of property.

Urban and regional planners rely on the same geometry practices used by surveyors when examining the positives and negatives of introducing new and updated plans for a community.

* Not my own words. This is the website if you need more info;

https://study.com/articles/jobs_that_involve_geometry.html

8 0

3 years ago

Read 2 more answers

Brainliest for correct answer

Mashutka [201]

Answer:

one third of the volume

Step-by-step explanation:

5 0

3 years ago

An article gave the following summary information for fracture strengths (MPa) of n = 196 ceramic bars fired in a particular kil

Oliga [24]

Answer:

54.80 MPa to 55.92 MPa

Step-by-step explanation:

Sample mean fracture strength (x) = 55.36 MPa

Sample standard deviation (s) = 3.99 MPa

Sample size (n) = 196.

The upper and lower bounds for a 95% confidence interval are given by:

$U=x+1.960*\frac{s}{\sqrt{n}} \\L=x-1.960*\frac{s}{\sqrt{n}}$

The upper and lower bounds of the confidence interval are;

$U=55.36+1.960*\frac{3.99}{\sqrt{196}}\\U= 55.92\\L=55.36-1.960*\frac{3.99}{\sqrt{196}}\\L= 54.80\\$

The 95% confidence interval for true average fracture strength is 54.80 MPa to 55.92 MPa

4 0

4 years ago