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3 years ago

The surface area of a triangular prism is always measured in cubic units. True False

Mathematics

2 answers:

Delicious77 [7]3 years ago

4 0

Answer:

False

Step-by-step explanation:

Measured in cm^2

Mnenie [13.5K]3 years ago

3 0

I think it’s false. Hope I helped xx

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Four friends want to take a vacation together, so each one gets a part-time job. Each person has 8 weeks to save $720 for the va

e-lub [12.9K]

You can use the fact that summing something P times is equal to multiplying that thing with P.

Those who could save the needed amount were:

Option A: A and C

<h3>How to add something P times?</h3>

Let you have to add a value y p times. Then you write it as:

$y + y + ... + y \text{\: (P times)}\\= y \times P$

<h3>How to calculate how much each friend earned?</h3>

checking total money each friend earned:

Friend A : worked 13 hours per week at $6.95/hour rate.

Since in 1 week, A works 13 hour, thus, in 8 weeks, he works

$13 \times 8 = 184 \: \rm hours$

Each hour he earns $6.95, thus, for 184 hours, he will earn

$6.95 + 6.95 + ... + 6.95 \text{\:(184 times)}\\= 6.95 \times 184 = \$1278.8$

Similarly,

Friend B: worked 15 hours per work at $5.85/hour rate

B earned $15 \times 8 \times 5.85 = \$702$

Friend C: worked 18 hours per work at $5.25/hour rate

B earned $18 \times 8 \times 5.25 = \$756$

Friend D: worked 11 hours per work at $7.80/hour rate

B earned $11 \times 8 \times 7.8 = \$686.4$

Only friend A and friend C could earn more than or equal to $750

Thus,

Those who could save the needed amount were:

Option A: A and C

Learn more about multiplication here:

brainly.com/question/520497

8 0

2 years ago

Read 2 more answers

An isosceles triangle has an angle that measures 38degrees. What measures are possible for the other two angles? Choose all that

Sphinxa [80]

Answer:

71° and 71°.

⠀

Step-by-step explanation:

The triangle having two sides equal along with one different side is called an isosceles triangle.

⠀

So, Let us assume the other sides (two equal sides) of the isosceles triangle as x. As the different side is already given in the question.

⠀

We know that,

The sum of all angles of a triangle is 180°

⠀

So, According to the question :

⠀

${\longrightarrow \it\qquad { \ { { 38 \: }^{ \circ} + x + x = 180{}^{ \circ} }}}$

⠀

${\longrightarrow \it\qquad { \ { { 38 \: }^{ \circ} + 2x = 180{}^{ \circ} }}}$

⠀

${\longrightarrow \it\qquad { \ { 2x = 180{}^{ \circ} - { 38 \: }^{ \circ}}}}$

⠀

${\longrightarrow \it\qquad { \ { 2x = 142{}^{ \circ} }}}$

⠀

${\longrightarrow \it\qquad { \ { x = \dfrac{142{}^{ \circ}}{2} }}}$

⠀

${\longrightarrow \it\qquad { \pmb { x = 71^{ \circ} }}}$

⠀

Therefore,

The measure of the two other angles of the isosceles triangle are 71° and 71°.

3 0

2 years ago

What is 3(x-1)<12 or x+7>10

Otrada [13]

Simplifying

3[x + -1] = 12

Reorder the terms:

3[-1 + x] = 12

[-1 * 3 + x * 3] = 12

[-3 + 3x] = 12

Solving

-3 + 3x = 12

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3' to each side of the equation.

-3 + 3 + 3x = 12 + 3

Combine like terms: -3 + 3 = 0

0 + 3x = 12 + 3

3x = 12 + 3

Combine like terms: 12 + 3 = 15

3x = 15

Divide each side by '3'.

x = 5

Simplifying

x = 5

6 0

3 years ago

The equation for line m is y = - - x + 5. Which equation represents a line perpendicular to line m?

Natalka [10]

Answer:

-y-x+5=0

Step-by-step explanation:

because if a line is perpendicular then

eqn bx-ay+.k..=0

4 0

3 years ago

Pls help me with these three problems asap. Write a number under the radical (square root symbol) that makes the statement true

blagie [28]

Answer:

the picture is black, pls retake

Step-by-step explanation:

6 0

3 years ago