3 years ago

Y

Mathematics

1 answer:

marysya [2.9K]3 years ago

6 0

Answer: Ryan had a head start of 10 meters.

Step-by-step explanation:

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1/3 of students at a school are boys. If there are 600 students at the school, how many are girls?

Temka [501]

Answer:

200 students are boys and rest of 400 are girls

Step-by-step explanation:

Given that:

Total students = 300

1/3 students of total are boys

so.

Boys = 1/3(600)

Boys = 200

For finding number of girls:

Girls = total - boys

Girls = 600 - 200

Girls = 400

i hope it will help you!

8 0

3 years ago

Read 2 more answers

1/2(16X + 10Y) – 10X – 7Y

Illusion [34]

Answer:

the answer is −2⋅(x+y)

5 0

3 years ago

Write an equivalent expression by simplifying the expression using combining like terms.

Scrat [10]

Answer: 10x + 4y + 2

The terms with an x are considered like terms so they could be subtracted.

6 0

2 years ago

Use the order of operations to evaluate this expression: 7+(5-9)2 + 3(16-8).

Murljashka [212]

Answer:

Step-by-step explanation:

Order of Operations: BPEMDAS

1. Brackets

2. Parenthesis

3. Exponents

4. Multiplication

5. Division

6. Addition

7. Subtraction

Left to Right

Step 1: Write expression

7 + (5 - 9)2 + 3(16 - 8)

Step 2: Parenthesis (subtraction)

7 + (-4)2 + 3(8)

Step 3: Parenthesis (multiplication)

7 - 8 + 24

Step 4: Subtract

-1 + 24

Step 5: Add

6 0

3 years ago

Evaluate the integral. (Use C for the constant of integration.) <br> cos(x) (8 + 7 sin^2(x)) dx

UNO [17]

Answer: $8 \sin x +7(\dfrac{\sin^3x}{3})+C$

Step-by-step explanation:

Consider $\int \cos(x) (8+7 \sin^2(x)) \, dx$

Substitute t= sinx

then dt = cos x dx

$\int \cos(x) (8+7 \sin^2(x)) \, dx = \int (8+7t^2)dt\\\\ =8t+7(\dfrac{t^3}{3})+C$

$[\int x^ndx=\dfrac{x^{n+1}}{n+1}+C]$

$=8 \sin x +7(\dfrac{\sin^3x}{3})+C$

Hence, $\int \cos(x) (8+7 \sin^2(x)) \, dx=8 \sin x +7(\dfrac{\sin^3x}{3})+C$

5 0

2 years ago