4 years ago

A triangle can have one right angle. a. True b. False

1 answer:

3 0

True because a triangle must have 3 angles that add up to 180 degrees and, since a right angle is 90 degrees, it cannot have 2 right angles

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801 round to the nerest ten

jolli1 [7]

801 rounded to the nearest ten would be 811

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3 years ago

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A positive integer squared plus 3 times it’s consecutive integer is equal to 43

Eduardwww [97]

Answer:

the integer is 5

Step-by-step explanation:

x^2+3(x+1)=43

x^2+3x+3=43

x^2+3x+(9/4)=43-3+(9/4)

(x+(3/2))^2=42 1/4

x+(3/2)=sqrt(42 1/4)

x+(3/2)=6 1/2

x=(6 1/2)-(3/2)

x=5

check:

5^2+3(6)=43

25+18=43

43=43

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2 years ago

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A pair of shoes costs $29.99 and the state sales tax is 5%. Use the formula C = p + rp to find the total cost of the shoes, wher

Lemur [1.5K]

29.99 + .05 × 29.99 = 31.49

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3 years ago

When the outliers are removed, how does the mean change? (2 points)

quester [9]

Answer:

Option 3: mean increases by 3

Step-by-step explanation:

Current mean:

[50+76+78+2(79)+80+81+2(82)+83] ÷ 10

= 77

Without the outliers:

[76+78+2(79)+80+81+2(82)+83] ÷ 9

= 80

80 - 77 = 3 (increase)

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3 years ago

decide if the following change is an increase or decrease. then determine the percent of change. senior citizen receive a 10% di

BARSIC [14]

The oldster got a discount, so the original price is higher; let's call it x;

$(1 - 0.10) x = 12.60$

$.9 x = 12.60$

$x = 12.60/0.9 = 14.00$

Answer: $14.00

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3 years ago