math, help needed pls ​

Answer:  157 cm²

Step-by-step explanation:

A semicircle whose diameter is 20 cm will have an area of 157 cm²

Answer:

c and e

Step-by-step explanation:

Answer:

x = 12

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

the answer is

1017.88.

in terms of pi

a) one unit up = Ix + 2I + 1

b) one unit down = Ix + 2I - 1

c) one unit to the left = Ix + 1I

d) one unit to the right = Ix + 3I

Let the function f(x) and g(x) are two real functions.

And g (x) = f (x) + k, where k is real numbers.

Function can be sketched by shifting f (x), k units vertically.

The direction of shift can be found by the value of k:

if k > 0, the base graph shifts k units up, and

if k < 0, the base graph shifts k units down.

The function provided by the basic function f(x) and the constant

g(x) = f(x - k),

may be drawn by horizontally moving the f(x) k unit coordinates.

The shift's direction depends on the value of k. Specifically,

The base graph moves k units to the right if k > 0, and

The base graph moves k units to the left if k < 0.

The graph of y = |x+2| is a V-shaped graph centered at x = -2.

To translate this graph, we need to modify the equation to shift it up/down or left/right.

Here are the equations for each translation:

a) To shift the graph one unit up, we need to add 1 to the equation:

y = |x+2| + 1

b) To shift the graph one unit down, we need to subtract 1 from the equation:

y = |x+2| - 1

c) To shift the graph one unit to the left, we need to replace x with (x+1) in the equation (since moving left means decreasing x by 1):

y = |(x+1)+2|

Simplifying this gives:

y = |x+3|

d) To shift the graph one unit to the right, we need to replace x with (x-1) in the equation (since moving right means increasing x by 1):

y = |(x-1)+2|

Simplifying this gives:

y = |x+1|

Therefore, all the required values are given above.

To learn more about the transformation on the graphs;

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Answer:

C

Step-by-step explanation:

[tex]5 \div 19[/tex]

think of

5/19 as in and out. 5 would be inside 19 would be on the outside. Therefore

5÷19 is equivalent to

[tex] \frac{5}{19} [/tex]

The answer would be 1 2/3 because 3/3=1 and underneath the bold line is 2/3 so that is why you're answer is 1 2/3

Answer:

A: 55

B: 125

C: 55

Step-by-step explanation:

Answer:

A: [tex]55[/tex]°
B: [tex]125[/tex]°
C: [tex]55[/tex]°

Step-by-step explanation:

Geometry properties!

When we look at this photo we see that [tex]a[/tex] and [tex]b[/tex] are on a line, meaning that [tex]a+b=180[/tex].

But because we don't have enough info yet we can't solve for them.

So let's head over to [tex]c[/tex].

For [tex]c[/tex] we see that it is also on a line with a right angle, and 35 degrees. This means that:

[tex]c + 90 + 35 = 180[/tex]

If we solve for [tex]c[/tex], we get:

[tex]c=180-90-35= 55[/tex].

Now we see that [tex]a[/tex] makes a vertical angle with [tex]c[/tex], meaning that angle [tex]a[/tex] is equal to angle [tex]c[/tex].

So now we know what angle [tex]a[/tex] is: [tex]55[/tex]°

Now we can go back to [tex]a + b =180[/tex]

Since we know [tex]a =55\\\text{we can get}\\55+b=180\\b=180-55=125[/tex]

That's it!

Answer:

Bidmas.

B =brackets

I= indices

D=division

M=multiplication

A=addition

S=subtraction.

The 19-4 is in brackets so this comes first. The answer is the top one..

Answer:

70-80

Step-by-step explanation:

Answer:

4 lines/sticks + 7 individual squares

Step-by-step explanation:

Decimal = 0.47

We can break 0.47 into 0.4 + 0.07. We can use 4 of the lines/sticks to represent 0.4 because the whole grid is equal to 1. We can use 7 individual squares to represent 0.07 because 1/100 is the same as one of the individual squares.

I hope this helps and please mark me as brainliest!

Answer:

4 sticks + 7 squares

Step-by-step explanation:

Hope I helped.

Answer:

b) adjacent and complimentary

Step-by-step explanation:

Supplementary angles equal 180. Complimentary angles equal 90. 55+35 equals 90 and are next to each other therefore they are adjacent and comlimentary.

Answer:

278,  932

Step-by-step explanation:

Outliers are just numbers or results that are very different to the rest of the numbers. hope this helps! :)

The measure for x is 30 degree.

A linear pair is a pair of adjacent angles formed when two lines intersect. The two angles of a linear pair are always supplementary, which means their measures add up to 180 degrees.

Given:

We have angles forms line are x, 120 and x.

So, x+ 120 + x = 180 (Linear pair)

2x+ 120 = 180

Now, Simplifying for x

Subtract 120 from both side we get

2x+ 120 - 120 = 180 - 120

2x = 60

Now, Divide both side by 2 we get

2x/ 2 = 60/ 2

x = 30

So, the measure of x is 30.

Learn more about Linear pair here:

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Answer:

The histogram shows there were 22 students in the class.

The histogram is symmetrical.

The histogram has a peak.

The histogram shows the data is evenly distributed.

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

The average rate of change of the equation during the interval 4 ≤ x ≤ 10

can be represented in this expression if f(x) is substituted for y:

[tex]\dfrac{f(10)-f(4)}{10-4}[/tex]

[tex]=\dfrac{17-5}{6}[/tex]

[tex]=\dfrac{12}{6}[/tex]

[tex]=2[/tex]

So, the average rate of change (AOC) is 2.

You also could just figure this out by looking at the slope. Since this is a linear equation, the AOC over any interval will always be the same as the slope, since the slope is constant.

Answer:

B. Subtraction

Step-by-step explanation:

Inverse operation mean that you do the equation but you flip the equation so you flip the symbol too. The inverse operation for this equation would be 132 - N = 87

Answer:

Step-by-step explanation:

Equation:

Flip the equation:

Answer is B.

(optional answer: N = 45).

Answer:

Step-by-step explanation:

Isolate the term of x from one side of the equation.

First, add by 5 from both sides.

[tex]\sf{x-5+5\leq10+5}[/tex]

Solve.

Add the numbers from left to right.

[tex]\sf{10+5=15}[/tex]

[tex]\Longrightarrow: \boxed{\sf{x\leq 15}}[/tex]

I hope this helps you! Let me know if my answer is wrong or not.

Let's solve this inequality.

First, we should add 5 to both sides:-

x≤10+5

x≤15

Remember, the "≤" sign means "less than or equal to"

So is x=6 a solution to the inequality x≤15? Will this solution make the inequality true?

Yes.

Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)

Answer:

A) 24*m + 40 ≤ 256

B) She could leave the house running for at most 9 minutes

Step-by-step explanation:

Answer:

23

Step-by-step explanation:

Answer:

the answer is 6 cm

Step-by-step explanation:

Here’s one way you can solve this problem.

A zoom setting of one hundred twenty percent means that the dimensions of the new copy will be one hundred twenty percent of the dimensions of the original drawing.

First, write the scale that expresses the ratio of the original percent to the copy percent, one hundred to one hundred twenty.

Then, let h represent the height of the copy and write the ratio of copy to original as five centimeters to h centimeters.

Next, write a proportion that equates the two ratios. One hundred to one hundred twenty equals five to h.

Then, cross multiply the terms of the proportion. One hundred twenty times five equals one hundred h.

Next, multiply to get six hundred equals one hundred h.

Finally, divide both sides by one hundred to find h. h equals six.

So, the longer dimension of the new drawing is six centimeters, which is one hundred twenty percent of five centimeters.

hope it helps

Step-by-step explanation:

Answer:

Multiplication.

Step-by-step explanation:

Multiply the two fractions together to get the fraction of the cake he actually ate. All the best. -Crispin