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3 years ago

If x = 7, which inequality is true?

Mathematics

2 answers:

Keith_Richards [23]3 years ago

8 0

Answer:

c would be it

Step-by-step explanation:

Ugo [173]3 years ago

3 0

Answer:

B. or D., not sure the inequality for B. & D.

Step-by-step explanation:

substitute 7 to the inequalities to find if it's true:

A. - 4 + 3x < 17 => -4 + 3(7) < 17 => 17 < 17 <em>(false)</em>

C. -7 - 2x > 1 => -7 - 2(7) > 1 => -21 > 1 <em>(false)</em>

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I need help<br><img src="https://tex.z-dn.net/?f=%20-%203n%20%2B%207%20%2B%202n%20-%208" id="TexFormula1" title=" - 3n + 7 + 2n

natta225 [31]

-1n+1
simplified to n=1
hope this helps!

8 0

3 years ago

Answer all worth 50 points

vredina [299]

<h2>Figure 1</h2>

Answer: 350

Formula: W × H × L

7 × 5 × 10 = 350

<h2>Figure 2</h2>

Answer: 288

Formula: $\frac{1}{2}bhl$

$\frac{1}{2}\times8\times6\times12=288$

<h2>Figure 3</h2>

Answer: 14.7

Formula: $\frac{1}{2} bhl$

$\frac{1}{2}\times4.2\times2\times3.5=14.7$

<h2>Figure 4</h2>

Answer: 4.29

Formula: W × H × L

2.6 × 1.5 × 1.1 = 4.29

<h2>Figure 5</h2>

Answer: 60

Formula: W × H × L

4 × 3 × 5 = 60

<h2>Figure 6</h2>

Answer: 27.2

Formula: $\frac{1}{2} bhl$

$\frac{1}{2}\times4.1\times2.6\times5.1$

<h2>Figure 7</h2>

Answer: $117\frac{223}{256}$

Formula: L × W × H

$8\frac{7}{8}\times4\frac{1}{4}\times3\frac{1}{8} =\frac{30175}{256}=117\frac{223}{256}$

<h2>Figure 8</h2>

Answer: 86.4

Formula: $\frac{1}{2} bhl$

$\frac{1}{2}\times6.1\times4.8\times5.9=86.4$

Explanation: To find the volume for a rectangular prism, multiply the Length, Width and Height. To find the volume for a triangular prism, multiply the Base, Height and Length by 1/2.

6 0

3 years ago

What is another way -7/2 is written in

bulgar [2K]

-3 1/2 is another way it can be written

5 0

3 years ago

Lupita brought seven pounds of pretzels at a local wholesaler for 16.80 her friend Charles about 5 pounds of pretzels at the sup

Mashutka [201]

Answer:

Step-by-step explanation:

Lupita brought seven pounds of pretzels at a local wholesaler for 16.80. This means that the rate at which she bought one pound of pretzel at the local wholesaler would be

16.80 / 7 = $2.4 per pounds of pretzels

Her friend, Charles about 5 pounds of pretzels at the supermarket 12.75. This means that the rate at which Charles bought one pound of pretzel at the supermarket would be

12.75 / 5 = $2.55 per pounds of pretzels

Charles's reasoning is wrong because the rate at which he bought one pound of pretzel is higher than that of Lupita's

7 0

3 years ago

In a state's pick 3 lottery game, you pay $1.33 to select a sequence of three digits (from 0 to 9), such as 288. if you sel

slega [8]

A. How many different selections are possible?

B. What is the probability of winning?

C. If you win, what is your net profit?

D. Find the expected value

Answer :

A. sequence of three digits (from 0 to 9). so 10 numbers.

We know 3 lottery games. So possible selections = 10^3 = 1000

B. Probability of winning = one outcome / total outcomes

P( winning) = $\frac{1}{1000}$ = 0.001

c. Net profit = winning amount - paid amount

= 384.13 - 1.33 = $382.8

D. expected value

E(x) = net profit * winning probability - paid amount * lost probability

E(x) = 382.8 * 0.001 - 1.33 * 0.999 = -0.95

you expect to lose 95 cents per ticket.

8 0

3 years ago