can somebody plz help with these 4 questions I will give brainiest to anybody that answer them correct

Mathematics

1 answer:

Ne4ueva [31]3 years ago

5 0

Answer:

number 9 is 720

Step-by-step explanation:

4(45)+4 * 3(45)

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Find the value of x A. 6 B. 9 C. 15 D. 3 Plz help I may mark Brainiest

vladimir1956 [14]

Answer:

A. 6

Step-by-step explanation:

$10x \degree + 30 \degree = 90 \degree \\(complementary \:angles) \\\\ 10x \degree = 90 \degree - 30 \degree\\ \\ 10x \degree = 60 \degree \\ \\ 10x = 60 \\ \\ x = \frac{60}{10} \\ \\ x = 6$

4 0

3 years ago

sydney has a $75 mall gift card. she wants to buy a sundress and a movie ticket. the movie ticket with tax costs $11.50. the sal

fenix001 [56]

11.50 + 1.04x < = 75
1.04x < = 75 - 11.50
1.04x < = 63.50
x < = 63.50/1,04
x < = 61.06.....the dress would have to be less then or equal to 61.06

5 0

3 years ago

Read 2 more answers

For each problem, use the formula for area of a polygon Arap, where a is the length of the

MrMuchimi

Answer: b is correct

Step-by-step explanation:

4 0

4 years ago

How do you subtract a integer from another integer without using a number line or counters

ZanzabumX [31]

This is how I do it. If it is a negative minus a negative, I combine the two - signs to make it an addition problem. Ex. -3 - -4 makes -3+4. The answer would be one.

If it is a negative plus a negative, keep the sign on the greater number and take away the sign the smaller number. Ex. -7 + (-9). Keep the sign on the 9. -7 - 9. The answer would be -16.

8 0

3 years ago

A square and rectangle have the same area. The length of the rectangle is 5cm more than twice the length of the side of the squa

timurjin [86]

Answer:

10cm

Step-by-step explanation:

First let's define variables a and x:

a = area of rectangle and square

x = side of square

Now let's create an equation to calculate a using the square and an equation to calculate a using the rectangle:

Using square: $x^{2} =a$