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4 years ago

Caitlyn did 6/7 of the problems on her maith quiz correctly and four incorrectly.She did all the problem.How many were there

Mathematics

1 answer:

Art [367]4 years ago

7 0

I think there were 28 questions total. Since if she got 4 wrong then I did 4x7 and got 28.

You might be interested in

Hi :) this lesson is about 30-60-90 triangles.

hjlf

Answer:

5 times the square root of 3

Step-by-step explanation:

To get the longest side of a 30-60-90 triangle, you take the shortest side and multiply it by the square root of 3.

5*(square root of 3)

4 0

3 years ago

A library ordered 956 new books. They ordered 12 times as many mystery books as romance. They ordered 52 more science fiction bo

Nataly_w [17]

Answer:

Romance books ordered = 65

Mystery books ordered = 775

Science Fiction book Ordered ≈ 116

Step-by-step explanation:

Total number of books ordered in the library = 956

Let us assume the number of romance books ordered = m

⇒Number of mystery books ordered = 12 x (Number of romance books)

= 12 x(m) = 12 m

Also,number of science books ordered = 52 +(Number of romance books)

= 52 + m

Now, according to the question:

Number of { romance books + mystery books + science books} = 956

or, m + ( 12 m ) + (52 + m) = 956

or, 14 m = 956 - 52

or, 14 m = 904

⇒ m = 904/ 14 = 64.6

So, the number of romance books ordered = 64.6 ≈ 65

Number of mystery books ordered = 12 m = 12 x 64.5 = 775

Number of science fiction book ordered = = 52 + m = 116.6 ≈ 116

7 0

3 years ago

Explain the pattern you can use to find the product when multiplying a whole number by a power of ten. Will this pattern be the

jenyasd209 [6]

Answer:

The pattern is the same when multiplying a whole number and a decimal number by a power of ten.

Step-by-step explanation:

The pattern to use when multiplying a whole number by a power of ten can be expressed as follow:

A whole number is a number without a fraction, so let say we choose 12 as a whole number, and let choose 6¹⁰ as a number with the power of ten.

To multiply these two numbers, we get;

= 12 × 6¹⁰

= 12 × 60466176

= 725594112

Now, the pattern to use when multiplying a decimal by a power of ten.

A decimal number is a number that comprises of a whole number and a fraction number that is being by a decimal point.

Let say our decimal number is 1.2 and our number raised to the power of ten is 6¹⁰

Then, To multiply these two numbers, we get;

= 1.2 × 6¹⁰

= 1.2 × 60466176

= 72559411.2

Thus, the pattern is the same when multiplying a whole number and a decimal number by a power of ten.

6 0

3 years ago

Dennis_Churaev [7]

Answer:

2π

Step-by-step explanation:

2π is the formula for solving it

7 0

3 years ago

(x 2 + 2x - 1)(x 2 + 2x + 5) Please help asap!

Yanka [14]

Hi there!

To solve this equation, we can use distributive property.

I listed the terms you have to multiply :
x² × x² = x^4
x² × 2x = 2x³
x² × 5 = 5x²
2x × x² = 2x³
2x × 2x = 4x²
2x × 5 = 10x
-1 × x² = -x²
-1 × 2x = -2x
-1 × 5 = -5

Add all of them....
x^4 + 2x³ + 5x² +2x³ + 4x² + 10x - x² - 2x - 5
add up the like terms to simplify

x^4 + 4x³ + 8x² + 8x - 5

Hope this helped! :)

5 0

4 years ago