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Soloha48 [4]
3 years ago
15

Vertical angles must:Check all that apply. A.be complementary. B.be acute. C.have the same vertex. D.be congruent.

Mathematics
1 answer:
KIM [24]3 years ago
3 0
<span>Vertical angles must be C and D

A.be complementary. They are not always complementary, to be complementary means having a sum of 90 deg
B.be acute. - Vertical angles can be NOT acute depending on how they are positioned and intersected with the lines.

Answer
C.have the same vertex.
D.be congruent.</span>
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If a textbook costs £7.80, how many can be bought for £101.40?
Semenov [28]

Answer:

13 textbook can buy.

Step-by-step explanation:

13 textbook can buy.

8 0
2 years ago
Read 2 more answers
Rectangle A measures 9inches by 3 inches, rectangle B is a scaled copy of rectangle A . What are all the measurements pairs that
Tanzania [10]

Answer:

Dimensions of Rectangle B will be 9x inches by 3x inches where x is a scaling factor.

Step-by-step explanation:

Scaled Copy: It means that the rectangle A is related to rectangle B by some scaling (multiplying) factor x.

As we are given Dimensions of rectangle A =  9 inches by 3 inches

Then for any scaling factor x the dimensions of rectangle B will be:

Dimensions of Rectangle B = x * ( Dimensions of rectangle A)

Dimension of rectangle B = x * (9 inches by 3 inches)

Dimensions of rectangle B = 9x inches by 3x inches

For more understanding let we assume that rectangle B is scaled copy of rectangle A by scaling factor x=3; then we will have the dimensions of rectangle B as under:

For scaling factor (x) = 3;

Dimensions of Rectangle B = x * ( Dimensions of rectangle A)

Dimensions of rectangle B = 3 (9 inches by 3 inches)

Dimensions of rectangle B = 27 inches by 9 inches

On the other hand for scaling factor x=0.75, the dimensions of rectangle B will become as under;

Dimensions of Rectangle B = x * ( Dimensions of rectangle A)

Dimensions of rectangle B = 0.75 (9 inches by 3 inches)

Dimensions of rectangle B = 6.75 inches by 2.25 inches

8 0
3 years ago
How do you find pi?
Crazy boy [7]
Pi is just 3.14--- math questions will most likely ask you to round to the nearest tenth or something of the sort -
4 0
3 years ago
Find the value of the expression:<br><br><br><br> 56 ÷ 7 + 7 × 3
miv72 [106K]
First, you have to apply the order of operations. 

Division and multiplication come first here and they go from left to right. So, 

56/7 = 8 
7*3 = 21 
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8 + 21 = 29. 

So the value of your expression is 29.
3 0
3 years ago
Read 2 more answers
How could you model 5 students sharing 4 bags of popcorn equally? How much will each student get?
Effectus [21]
Your answer is 0.8 or 80%
Explanation:

Consider the ratio written like a fraction:

<span><span>Count of sandwichescount of people</span>→<span>46</span></span>

But we need the count of sandwiches for 1 person. So we need to change the 6 people into 1 person. To change 6 into 1 divide it by 6

<span>6÷6=1</span>

For ratios, when multiplying or dividing, what we do to the bottomwe do to the top.

So to change <span>46</span> into what we want we apply

<span><span><span>4÷6</span><span>6÷6</span></span>=<span><span>23</span>1</span>← <span>Count of sandwichescount of people</span></span>

So each person ends up with <span>23</span> of a sandwich

<span>Now see where the shortcut comes from <span>46</span>=<span>23</span><span> of a sandwich</span></span>

5 0
3 years ago
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