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4 years ago

7x7+3(5.2-2.8) evaluate the express

Mathematics

2 answers:

rewona [7]4 years ago

6 0

Answer:

56.2

Step-by-step explanation:

7x7+3(5.2-2.8)

Use GEMDAS:

Grouping Symbols | [ ] ( )

Exponents | ^2

Multiplication | 7x7

Division | 9/18

Addition | 1+1

Subtraction | 2-1

Go in order using this method. If nothing is left but one thing, go from left to right. Sometimes, not everything will be there.

Thank you for your time, and have a fantastic day, week, month, and year!

AlekseyPX4 years ago

4 0

Answer:

56.2

Step-by-step explanation:

Use your order of operations to solve this and you will understand how to do more like these in the future. Especially when your solving multi step equations. PEMDAS look it up and learn it by heart, it will help you so much in the future

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How do you find a rate of a number

KATRIN_1 [288]

To determine the rate of a number do the following steps:

Multiply the number by the percent (e.g. 87 * 68 = 5916)

Divide the answer by 100 (Move decimal point two places to the left) (e.g. 5916/100 = 59.16)

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8 0

3 years ago

Read 2 more answers

Find the solutions to the equation below.

matrenka [14]

Answer:

B and F.

Step-by-step explanation:

2x^2 + 7x + 3 = 0

2x^2 + 6x + x + 3 = 0

2x(x + 3) + 1(x + 3) = 0

(2x + 1)(x + 3) = 0

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7 0

2 years ago

A line passes through (10,2) and (14,-22). Write the equation of the line in standard form.

jarptica [38.1K]

Answer:

The equation of the line in standard form is:

$6x + y = 62$

Step-by-step explanation:

Given the points

(10,2)

(14,-22)

Determining the slope between (10, 2) and (14, -22)

$\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}$

$\left(x_1,\:y_1\right)=\left(10,\:2\right),\:\left(x_2,\:y_2\right)=\left(14,\:-22\right)$

$m=\frac{-22-2}{14-10}$

$m=-6$

The point-slope form of the line equation is

$y-y_1=m\left(x-x_1\right)$

where

m is the slope of the line

(x₁, y₁) is the point

substituting the values m = -6 and the point (10, 2) in the point-slope form of the line equation

$y-y_1=m\left(x-x_1\right)$

$y - 2 = -6(x - 10)$

$y - 2 = -6x +60$

adding 2 to both sides

$y-2+2 = -6x + 60 + 2$

$y = -6x + 62$

We can write the equation in the standard form such as

Ax + By = C

Thus,

$y = -6x + 62$

adding -6x to both sides

$6x + y = -6x + 62 + -6x$

$6x + y = 62$

Therefore, the equation of the line in standard form is:

$6x + y = 62$

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3 years ago

F the quadratic function f(x) = x2^2 is graphed below along with the quadratic function g(x) which of the following could

vampirchik [111]

Answer: g(x)= -1/2x^2

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It would be:

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3 years ago