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2 years ago

A number b minus 4.2 is less than -7.5

Mathematics

1 answer:

Korolek [52]2 years ago

4 0

Answer:

b-4.2<-7.5

Step-by-step explanation:

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(7/3,4/3),(-1/3,2/3)

nevsk [136]

How is this a question?

5 0

3 years ago

Please help me!!!!!!!!!!

PolarNik [594]

Just divide the arc the inscribe angle forms by 2. So 100/2 = 50 = a, and b is 55.

4 0

3 years ago

Read 2 more answers

I WILL MARK BRAINLIEST

11111nata11111 [884]

Answer:

I think the answer would be the very first one.

they all need to have '' ( ) '' in them.

if a number is outside of that, it needs to at least have a letter beside the number

here's an example

Factored form:

2x(x + y)

not factored:

2(x - y)

but for the first one, it's correct from the rest of them.

7 0

3 years ago

Given: m∠A = m∠C = 90°<br> AB ║ DC<br> Prove: ∆ABD ≅ ∆CDB<br> 40 points

leonid [27]

Answer:

ABD = CDB

AB is parallel to DC

Step-by-step explanation:

angle a and c are right angles so they are equal and angle b and d are equal because they have a line that touch both letters

AB and DC are parellel because they are the same looking lines just on oppisite sides

7 0

2 years ago

The area of a trapezoid is

horrorfan [7]

Answer:

<h2>The answer is 15cm</h2>

Step-by-step explanation:

Let b be the length of the second parallel side

Area of a trapezium is given by

$A = \frac{1}{2} (a + b)h$

where

h is the height

a and b are the parallel sides

From the question

Area = 230 cm²

height = 20cm

one of parallel side / a = 8 cm

Substitute the values into the above formula and solve for b

That's

$230 = \frac{1}{2} ( 8 + b) 20$

Reduce the fraction with 2

That's

$230 = (8 + b) \times 10$

Expand the terms

That's

$230 = 80 + 10b$

$10b = 230 - 80 \\ 10b = 150$

Divide both sides by 10

We have the final answer as

Hope this helps you

4 0

2 years ago