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kramer
4 years ago
9

Evaluate the expression 8z + 3; z=8

Mathematics
1 answer:
weqwewe [10]4 years ago
3 0
<span>Simplifying 8z + 3z = 8 Combine like terms: 8z + 3z = 11z 11z = 8 Solving 11z = 8 Solving for variable 'z'. Move all terms containing z to the left, all other terms to the right. Divide each side by '11'. z = 0.7272727273 Simplifying z = 0.7272727273</span>
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Will mark brainliest if you could explain this to me??
Rasek [7]

Your answer would be 4379 members because at the very beginning you had started off with 4372 members, however as the months go by changes happen. On october, it changed by -10, meaning that 10 students left the school meaning 4372-10=4362 members remaining. Then there's november with -8, so you subtract 8 from your new total 4362-8=4354. Then december comes, and this time it's a positive number, so you have to add 23 to 4354, giving you a new total of 4377. Then there's january, and its back to a negative number so you subtract 12 from 4377, 4377-12=4365. Then february comes and it's a change of a positive number, so you add 3 to the 4365, giving you 4368. And then finally by march, it's another positive number so you add 11 to your total, giving you 4379 students which are now at school. So basically if it's a negative change, subtract from the total, and if it is a positive, add to it. And you have to continue with the total that you got from the previous change that you did. Hope this was helpful

8 0
3 years ago
Read 2 more answers
I need help? With proof for this one.
Schach [20]

Answer:

See below.

Step-by-step explanation:

ABC is an isosceles triangle with BA = BC.

That makes angles A and C congruent.

ABD is an isosceles triangle with AB = AD.

That makes angles ABD and ADB congruent.

Since m<ABD = 72 deg, then m<ADB = 72 deg.

Angles ADB and CDB are a linear pair which makes them supplementary.

m<ADB + m<BDC = 180 deg

72 deg + m<BDC = 180 deg

m<CDB = 108 deg

In triangle ABD, the sum of the measures of the angles is 180 deg.

m<A + m<ADB + m<ABD = 180 deg

m<A + 72 deg + 72 deg = 180 deg

m<A = 36 deg

m<C = 36 deg

In triangle BCD, the sum of the measures of the angles is 180 deg.

m<CBD + m<C + m<BDC = 180 deg

m<CBD + 36 deg + 108 deg = 180 deg

m<CBD = 36 deg

In triangle CBD, angles C and CBD measure 36 deg making them congruent.

Opposite sides DB and DC are congruent making triangle BCD isosceles.

3 0
3 years ago
Please help me out, i can not understand this, i will give a brainliest out to whoever can help me
marishachu [46]

Answer:

So try 0-6

Step-by-step explanation:

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2 years ago
Plz, help brainliest look at the picture PLZ HELP!!!
Eddi Din [679]
C. a and c, b and d


mdmcnfnfn
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3 years ago
Find the volume of the rectangular prism. geometry hw plz help
liq [111]

Answer:

189 cm^3

Step-by-step explanation:

7 times 9 times 3=189

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3 years ago
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