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PSYCHO15rus [73]
3 years ago
12

Help please !!! Thanks guys

Mathematics
1 answer:
natka813 [3]3 years ago
3 0
Answer:
(b+4) and (b-1)
Explanation:
do a generic rectangle
b times b is b^2
b times 4 = 4b
-1 times b = -1b
-1 times 4 = -4
b^2+4b-1b-4
simplify
b^2+3b-4
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Hey can you please help
AfilCa [17]

Answer:

Measure of major arc BDC = 260.5°       Option A

Step-by-step explanation:

Given that, measure of central angle ∠BAE = 80.5°

Firstly we will find the measure of arc BE .  

The measure of arc BE  is same as the measure of its central angle.

So, measure of minor BE arc = 80.5°

measure of arc EDC = 180°  because of half circle

So,

measure of major arc BDC = 180° + 80.5° = 260.5°       option A

That's the final answer.

7 0
3 years ago
Read 2 more answers
Student grades on a chemistry exam were:77, 79, 76, 82, 86, 50, 79, 81, 83, 99
Allushta [10]
You just lost the tens place on the left and all the ones place that is with the tens place beside it in the leaf section. The answer is attached

3 0
3 years ago
Another one. 2/3 + 1/6?
pentagon [3]
Answer to 2/3 + 1/6 is 5/6.
8 0
3 years ago
Read 2 more answers
In Jim's class, 5 times as many students take the bus as those who walk. A total of 24 students walk or take the bus. How many m
lana [24]
The answer is 16.  To solve this problem, it will look like this:
5 n + n = 24
So, 6(4) = 24. n=4
With this equation, you can see that 4 kids walk to school and 20 take the bus. Then you need to do 20 - 4 = 16. So 16 more kids take the bus than walk to school. 

Another way to look at it...
We know there are 5 times as many bus kids as there are walkers. 
walkers - n
bus kids - n+n+n+n+n
6n = 24 (the total number of students), which can translate to 6 x n = 24. We know that 6x4=24, so n=4. The number of kids that walk is 4. The number of kids on the bus is 20. So subtract the bus kids from the walking kids, and that leaves us the answer. 16 more students ride the bus than those who walk. I hope that helped.
3 0
3 years ago
A multi-layer cake is in the shape of a right cylinder. The height of the cake is 20 centimeters, and its radius is 10 cm. If ea
gizmo_the_mogwai [7]

Answer:

There are total 5 layers.

Step-by-step explanation:

A multi-layer cake is in the shape of a right cylinder.

Height of the cake is = 20 cm

Radius is = 10 cm

Each of the cake layers has a volume of approximately 1,250 cm³.

Means, the volume of 1 cylindrical layer is 1250 cubic cm with radius as 10 cm and we have to find the height.

Volume of the cylinder is given as:

V=\pi r^{2} h

1250=3.14\times(10)^{2}\times h

1250=314 h

h=\frac{1250}{314}

h = 3.98 or approximately height of 1 layer is 4 cm.

As the cake's height is 20 cm so, there are \frac{20}{4}=5 layers in the cake.

Answer: There are 5 layers in the cake.

5 0
3 years ago
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