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2 years ago

Find the sum of -10x^2-x+6−10x 2 −x+6 and 10x^2-510x 2 −5.

Mathematics

2 answers:

irina [24]2 years ago

8 0

Answer:

1. -10x^2-x+6-10x 2-x+6 = -10x^2 - 22x + 12

2. 10x^2-510x 2-5 = 10x^2 - 1020x - 5

Step-by-step explanation:

hope this helps

if i did something wrong let me know so i can fix my answer

#Virgo2007

Lunna [17]2 years ago

8 0

Answer:

Step-by-step explanation:

(-10x^2-x+6−10x 2 −x+6) + (10x^2-510x 2 −5)

= -10x^2-2x-8+10x^2-1025

= -2x - 1033

correct me if I'm wrong

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Liza is driving to her sister's house 360 miles away. After 4 hours, Liza is 2 3 of the way there.

DochEvi [55]

Liza is driving to her sister's house 360 miles away. After 4 hours, Liza is 2/3 of the way there. How many more hours does Liza have to drive?

Answer:

Liza need to drive 2 more hours to reach her sister house

Solution:

Given that Liza is driving to her sister's house 360 miles away

So total distance = 360 miles

After 4 hours, Liza is 2/3 of the way there.

$\frac{2}{3} r d \text { of total distance }=\frac{2}{3} \times 360=240$

So Liza has covered 240 miles in 4 hours

Let us find the speed

The relation between distance and speed is given as:

$speed = \frac{distance}{time}$

$speed = \frac{240}{4} = 60$

Thus speed = 60 miles per hour

Assuming speed is same throughout the journey, let us calculate the time taken to complete remaining distance

Remaining distance = 360 - 240 = 120 miles

Now distance = 120 miles and speed = 60 miles per hour

$time taken = \frac{distance}{speed}\\\\time taken = \frac{120}{60} = 2$

Thus Liza need to drive 2 more hours to reach her sister house

4 0

3 years ago

Find the area of a triangle with a base of 10 in. and an altitude of 14 in. (The formula for the area of a triangle is A = bh ÷

Vanyuwa [196]

Answer:

The correct option is B.

Step-by-step explanation:

The area of triangle is

$A=\frac{1}{2}\times b\times h$

Where, b is the base of the triangle and h is the height of the triangle.

It is given that the base of the triangle is 10 inch and the height of the triangle is 14 inch.

The area of given triangle is

$A=\frac{1}{2}\times 10\times 14$

$A=10\times 7$

$A=70$

Therefore the area of triangle is 70 square inch and the option B is correct.

3 0

4 years ago

Read 2 more answers

Can u guys PLEASE answer this question ASAP.

Andrej [43]

Answer:

1. Interest: $166.67

Principal: $6,166.67

2. Interest: $200.00

Principal: $5,200.00

Explanation:

1. $6000 for 50 days at 20% p.a

In 20% pa, pa means "per annum", i.e. "per year".

Assume simple interest:

Principal: $6,000

interest: 20% pa

time = 50 days

Interest:

Interest = Principal × number of days × annual rate / 360

Interest = $6,000 × 50 × 20% / 360 = $166.67

Principal = principal + interest = $6,000 + $166.67 = $6,166.67

2. $5000 for 5 months at 0.8% per month

Assume, again, simple interest.

Principal: $5,000

interest: 0.80% per month

time = 5 months

Interest:

Interest = Principal × number of months × montly rate

Interest = $5,000 × 5 × 0.80% = $200.00

Principal = principal + interest = $5,000 + $200.00 = $5,200

You can see that the accrued interests depend on the principal, the interest rate, and the time.

8 0

3 years ago

Which career would most heavily involve geometric concepts?

LiRa [457]

Answer:

Out of these careers, an engineer would be the most geometric involved career.

Step-by-step explanation:

This answer is true through the process of elimination. A stockbroker focuses on economy in order to choose the right stock. A statistician focuses on graphing and statistics in terms of math. An accountant is focused on simple math in order to deduct and add to the sum of the money. The engineer has to use geometry in order to design plans for constructions.

5 0

3 years ago

Solve For X. Solve similar triangles (advanced)

satela [25.4K]

4+3 = 7
7^2 +6^2
49+36 = 85
Radical85 = 9.21
So x will be 3.9

3 0

3 years ago