All categories

2 years ago

Pls solve this math question

Mathematics

1 answer:

Otrada [13]2 years ago

5 0

Answer:

so let's call the unknown number x.

-5/4 x X = 7/2

by changing the subject, X = 7/2 / -5/4

to divide fractions, we turn the fraction we're dividing by upside down and change the sign to multiplication. so X = 7/2 x 4/-5

after multiplying, X =>28/-10

simplified, X = 14/-5

You might be interested in

Help meee please thank you will mark brainlist….

erik [133]

Answer:

It's 47 because it's an isosceles triangle.

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Which represents a quadratic function?

Lisa [10]

Answer:

f(x)=start fraction 4 over x squared End fraction minus start fraction 2 over x end fraction +1

7 0

2 years ago

Read 2 more answers

Brayden's horse gained 9 pounds over a 3 week

mr_godi [17]

30 pounds after 10 weeks
9/3=3
3*10=30

5 0

3 years ago

Read 2 more answers

What is y-2=-2(x-3) In slope intercept form

AlexFokin [52]

Answer:

y=-2x+8

Step-by-step explanation:

distribute:

y-2=-2x+6

add 2:

y=-2x+8

7 0

2 years ago

Solve the right triangle, ΔABC, for all the missing side and angles to the nearest tenth given sides a = 10.6 and b = 19.2.

Aliun [14]

Answer:

Part 1) $c=21.9\ units$

Part 2) $B=61.1\°$

Part 3) $A=28.9\°$

Part 4) $C=90\°$

Step-by-step explanation:

step 1

Find the length side c

Applying the Pythagoras Theorem

$c^{2}=a^{2}+b^{2}$

substitute the given values

$c^{2}=10.6^{2}+19.2^{2}$

$c^{2}=481$

$c=21.9\ units$

step 2

Fin the measure of angle B

we know that

In the right triangle

$tan(B)=b/a$

substitute the given values

$tan(B)=19.2/10.6$

$B=arctan(19.2/10.6)=61.1\°$

step 3

Find the measure of angle A

we know that

The measure of interior angles in a triangle must be equal to 180 degrees

∠A+∠B+∠C=180°

Remember that in a right triangle the measure of angle C is 90 degrees

we have

$B=61.1\°$

$C=90\°$

substitute

$A+61.1\°+90\°=180\°$

$A=28.9\°$

4 0

2 years ago