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3 years ago

3 7/8- 3/8 I really need help!

Mathematics

2 answers:

garri49 [273]3 years ago

7 0

The answer is........

3 1/2

It would get you 3 4/8 then you simplify it to 3 1/2

Eddi Din [679]3 years ago

4 0

Answer:

<u /> $3\frac{1}{2}$ <u />

Step-by-step explanation:

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If RX=4 and XS=9, then XT=<br> And how do you get it?

konstantin123 [22]

Answer:

XT=6 units

Step-by-step explanation:

The picture of the question is the attached figure

step 1

In the right triangle RST

Applying the Pythagorean theorem

$RS^2=RT^2+TS^2$

we have

$RS=RX+XS=4+9=13\ units$ ---> by segment addition postulate

substitute

$RT^2+TS^2=169$ ----> equation A

step 2

In the right triangle RTX

Applying the Pythagorean theorem

$RT^2=RX^2+XT^2$

we have

$RX=4\ units$

substitute

$RT^2=4^2+XT^2$

$RT^2=16+XT^2$

$XT^2=RT^2-16$ ----> equation B

step 3

In the right triangle XTS

Applying the Pythagorean theorem

$TS^2=XS^2+XT^2$

we have

$XS=9\ units$

substitute

$TS^2=9^2+XT^2$

$TS^2=81+XT^2$

$XT^2=TS^2-81$ ----> equation C

step 4

equate equation B and equation C

$TS^2-81=RT^2-16$

$TS^2-RT^2=81-16$

$TS^2-RT^2=65$ ----> equation D

step 5

Solve the system

$RT^2+TS^2=169$ ----> equation A

$TS^2-RT^2=65$ ----> equation D

Solve by elimination

Adds equation A and equation D

$RT^2+TS^2=169\\TS^2-RT^2=65\\---------\\TS^2+TS^2=169+65\\2TS^2=234\\TS^2=117$

Find the value of RT^2

$RT^2+117=169\\RT^2=52$

step 6

Find the value of XT

equation C

$XT^2=117-81\\XT^2=36\\XT=6\ units$

7 0

3 years ago

Solve for the value of X as you should solve for X and explain.

Varvara68 [4.7K]

Answer:

12cos59, about 6.18

Step-by-step explanation:

cos59 = x/12

(adjacent/hypotenuse)

x = 12cos59

plugging this into a calculator gets you about 6.18

6 0

3 years ago

*click image*

iragen [17]

Answer:

y = -948

Step-by-step explanation:

y/-12 + 16 = 95 (subtract 16 from both sides)

y/-12 = 79 (multiply -12 to both sides)

y = -948

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3 years ago

Your lab develops a synthetic compound that is extremely light but very durable. You test it by making a solid ball with a radiu

scZoUnD [109]

Answer:

Pi x r² = 1256.63706144

Step-by-step explanation:

i'm not 100% sure this is right

5 0

3 years ago

Convert 2x-y=-7 into slop-intercept form

kykrilka [37]

I believe the answer is y=2x+7

7 0

3 years ago

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